Chen says the product of 4x0 is the same as the sum of 4+0. Is Chen correct? Explain.

Answers

Answer 1

Answer:

No

Step-by-step explanation:

The product of zero and any number is zero. Basically, if you multiply any number with zero, you get zero. Hence, 4*0=0. However, anything added with zero is itself since you're basically not adding anything to that number. For example, nothing is being added to 4 in '4+0', so 4+0=4.

4*0=0

4+0=4

0[tex]\neq[/tex]4


Related Questions

7 x 7 - 2 ( 11/8 - 3/8 ) pls help me

Answers

It's 47. I used a calculator.

(b) After his first month he had more than he expected to have due to interest the bank provided. This let
Rob come up with a better expression, w^2/25 +45w+155, where w is the number of weeks. How much will he have in 1 year?

Answers

The amount he is expected to have due to interest in the bank after a year is; $2603.16

How to solve algebraic equations?

We are given the equation;

w²/25 + 45w + 155

where;

w is number of weeks

Now, this equation above represents the function of the amount he is expected to have due to interest in the bank. Thus;

After 1 year, the number of weeks is 52 weeks. Thus, we now have;

A(52) = 52²/25 + 45(52) + 155

A(52) = $2603.16

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Describe the transformation from the graph off to the graph of g. PLEASE HELP!

Answers

Answer:

  translation 3 units up: g(x) = f(x)+3

Step-by-step explanation:

You are given graphs of f(x) and g(x) and want to know the transformation that gives g(x) from f(x).

Transformations of graphs

The sorts of transformations of graphs that we study are translation, scaling (horizontally or vertically), and reflection about an axis.

Here, both graphs have the same shape, but one is in a different place than the other. The applicable transformation is one of translation.

Translation

The vertex of f(x) is at (0, -1). The vertex of g(x) is at (0, 2). We note the x-value has not changed, but the y-value has had 3 added to it. (-1 +3 = 2)

  g(x) = f(x) +3 . . . . . . the function f is translated 3 units upward.

For this 10-point assignment, please describe the context of the mathematics by doing the following:
• Explain how circles are related to the Pythagorean Theorem. You may include triangles in your discussion, too.
• One city is located at (45, -123) and the other is located at (53.65, -6.7). describe how you would compute the distance between the
cities, momentarily ignoring the curvature of the Earth (what would you do if you didn't ignore the curvature?).

Answers

Circles are related to Pythagorean theorem in the sense that the equations are alike and the sides conforms to:

radius ≅ hypotenuse(x2 - x1)^2 ≅ opposite(y2 - y1)^2 ≅ adjacent

The distance between the two cities is 116.62 units (ignoring curvature)

If the curvature is not ignored then we sort for the angle subtended

How to compare circle to Pythagorean theorem

The Pythagorean theorem relates the square of hypotenuse, square of the opposite, and the square of the adjacent as follows

hypotenuse^2 = opposite^2 + adjacent^2       equation 1

Representing a circle in a coordinate axis will give it values in coordinate form. Assuming the coordinate of the center is (x1, y1) and a point in the circumference is (x2, y2). The radius of the circle, r is given as

r^2 = (x2 - x1)^2 + (y2 - y1)^2                              equation 2

comparing equation 1 and 2 shows that

radius ≅ hypotenuse,  (x2 - x1)^2 ≅ opposite, and (y2 - y1)^2 ≅ adjacent

How to find the between two cities

say A = (45, -123)

say B = (53.65, -6.7)

Let the distance between the two cities be d

d^2 = (53.65 - 45)^2 + (-6.7 - (-123) )^2

d^2 = 8.65^2 + 116.3^2

d = √13600.5125

d = 116.62 units (ignoring the earth curvature)

if the curvature is not ignored then we look for the angle subtends

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A mother wants to invest $13000 for her children's education. She invests a portion of
the money in a bank certificate of deposit (CD account) which earns 4% and the
remainder in a savings bond that earns 7%. If the total interest earned after one year is
$780, how much money was invested at each rate?

Answers

The amount invested at 4% is $4,333.33

The amount invested at 7% is $8,666.67

What represents the amount invested at 4%?

Let assume that x is the amount invested in the bank certificate of deposit (CD account)  which earns 4%, in essence, the interest earned at 4% is the amount of money invested multiplied by 4%

interest at 4%=4%*x=0.04x

amount invested at 7%=13000-x

interest at 7%=7%*(13000-x)

interest at 7%=910-0.07x

total interest=0.04x+910-0.07x

total interest=910-0.03x

total interest earned=780

780=910-0.03x

0.03x=910-780

0.03x=130

x=130/0.03

x=amount invested  at 4%=$4,333.33

amount invested at 7%=$13,000-$4,333.33

amount invested at 7%=$8,666.67

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what is the domain of h

Answers

h: The domain

-5 ≤ x ≤ 5

Identify the terms, coefficients, and the constants in the expression. 11q + 2

Answers

The term, coefficient and constant in the expression are 11q, 11 and 2 respectively.

What are the parts of an algebraic expression?

The parts of an algebraic expression are;

TermsCoefficientsConstants

Terms:  A term can be defined as a number, a variable, or the product of two or more variables or that of a product of a number and a variable.

The term is 11q

Coefficients: A coefficient is  defined as an integer multiplied by the variable.

The coefficient is 11

Constants: A constant is a number that do not change.

The constant is 2

Thus, the term, coefficient and constant in the expression are 11q, 11 and 2 respectively.

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Please help i will give brainliest :)

Answers

It’s 0.5
Check out the attached photo

Write an equation of the line with the given slope and the given​ y-intercept. Express the answer in standard form.
[tex]slope \frac{5}{8} , y-intercept (0,\frac{1}{4} )[/tex]

Answers

Answer:

5x - 8y = -2

Step-by-step explanation:

m = 5/8, x = 0, y = 1/4

so y = mx + b

1/4 = 5/8(0) + b

b = 1/4

so y = 5/8x + 1/4

8y = 5x + 2

5x - 8y = -2

A square acre of land is 5,280 square yards.
Between which two integers is the length of one side?

Between 17 and 18 yards

Between 72 and 73 yards

Between 24 and 243 yards

Between 1,320 and 1,321 yards

Answers

The two integers which the length of one side is in between are 72 yards and 73 yards

How to determine between which two integers is the length of one side?

The given parameters are

Area = 5280 square yards

Shape = Square

The area of a shape is calculated using

Area = Length^2

So, we have

Length^2 = 5280 square yards

Take the square root of both sides

Length = 72.66 yards

72.66 yards is between 72 yards and 73 yards

Hence, the two integers which the length of one side is in between are 72 yards and 73 yards

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Find the measure of indicated angle or solve variable if necessary

Answers

Value for  the 3 straight  lines are 180,28 , 152.

What is a straight line, exactly?

Simply put, a straight line is a line devoid of bends. A straight line is one that does not curve and reaches to infinity on both sides.

CBE = 28 + 90 = so the angle is 118 degrees

ABF = you already got the answer written down, 28

CBA = this is not 180 like you wrote, CBA = ABD - CBD

Straight lines = 180, so ABD = 180

You already found out that CBD = 28

so CBA = 180 - 28 so the answer CBA = 152

So,  answers for the 3 lines are 180,28 , 152

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36. THOUGHT PROVOKING
Draw a different figure that
has the same perimeter as
the triangle shown. Explain
why your figure has the
same perimeter.
x+3
3x
2x + 1

Answers

A figure with the same perimeter as the one shown is a rectangle of base 3x and height 2, as given in the end of the question.

What is the perimeter of a figure?

The perimeter of a figure is given by the sum of all the outer sides of the figure.

Hence, for this problem, the perimeter is given by:

P = x + 3 + 2x + 1 + 3

P = 6x + 4.

A figure with the same perimeter as the one shown is a rectangle of base 3x and height 2, as given in the end of the question, as:

3x + 3x + 2 + 2 = 6x + 4.

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4. A rocking horse has a weight limit of 60 pounds.
a. What percentage of the weight limit is 33 pounds?
b. What percentage of the weight limit is 114 pounds?
c. What weight is 95% of the limit?

Show your work

Answers

a. 55% of the maximum weight is 33 pounds.

b. 114 pounds is 190% of the weight limit.

c. 57 pounds is 95% of the maximum.

Answer to Part a:

Let c be the weight limit percentage for 33 pounds.

Then we have (60 x c)/100 = 33 pounds

This implies 3c/5 = 33

This means that 3c = 33 x 5 = 165.

This means that c = 165 / 3 = 55.

Therefore 55% of the weight limit is 33 pounds.

Answer to Part b:

Let d be the weight limit percentage for 114 pounds.

Then we have (60 x d)/100 = 114 pounds

This implies 3d/5 = 114

This means that 3d = 114 x 5 = 570.

This means that d = 570 / 3 = 190.

Therefore 190% of the weight limit is 114 pounds.

Answer to Part c:

95% of the weight limit is

= 95 x 60 /100

= 95 x 3/5

= 19 x 3

= 57

Therefore, 95% of the weight limit is 57 pounds.

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Keilantra has $660 to spend at a bicycle store for some new gear and biking outfits. Assume all prices listed include tax.
She buys a new bicycle for $488.20.
She buys 2 bicycle reflectors for $11.17 each and a pair of bike gloves for $19.05.
She plans to spend some or all of the money she has left to buy new biking outfits for $37.26 each.

Write and solve an inequality which can be used to determine xx, the number of outfits Keilantra can purchase while staying within her budget.

Answers

The number of outfits she can buy is 3.

How many outfits can she buy?

The The first step is to determine the total cost of all the items already bought.

Total cost = cost of new bicycle + (cost of one reflector x number of reflectors) + cost of the gloves

$488.20 + (2 x $11.17) + 19.05

$488.20 + 19.05 + $22.34 = $529.59

Now, determine the amount that is left to buy the outfits :

$660 - $529.59 = $130.41

Here are inequality signs and what they mean:

> means greater than

< means less than

≥ means greater than or equal to

≤ less than or equal to

The inequality sign that would be used is ≤

(cost of one outfit x number of outfits)  ≤ amount left

$37.26x ≤ $130.41

x  ≤ 130.41 / 37.26

x  ≤ 3.5

x = 3

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Julian saved between $30 and $52
over the summer. His friend Daniela
saved twice as much. Let n represent
the amount of money Daniela saved.

What is the compound inequality?

Answers

The compound inequality is  60 < n < 104.

Let 'x' denote the amount of money saved by Julian.

Then x is between $30 and $52.

I.e., x>30 and x<52.

This can be written as a single inequality by combining the both.

i.e., 30 < x < 52

His friend Daniela saved twice as much as Julian.

Let 'n' denotes the amount of money Daniela saved.

Then n = 2x

We need to write the compound inequality for the money saved by Daniela.

As Daniela saved twice as much as Julian, it will be between 2 x 30 = $60 and 2 x 52 = $104

So the compound inequality is 60 < n < 104.

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Find the exact value of the trigonometric function of 0 from the given information.
sin 0=
4
5'
tan 00, find sec 0

Answers

The value of the trigonometric function secθ  is 3/4.

Given the value of the trigonometric function sinθ is 4/5

we know that sinθ = Perpendicular (P)/Hypotenuse(h)

Therefore, sinθ = 4/5;

perpendicular (p) = 4 and

hypotenuse (h) = 5

In trigonometry, the secant function is a periodic function. The ratio of the hypotenuse's length to the base's length in a right-angled triangle is known as the secant function, or sec function. It is also written as sec x = 1 / cos x since it is the reciprocal of the cosine function.

secθ = base(b) / perpendicular(p)

Therefore, Base (b) = √(h² ₋ p²)

= √(5² ₋ 4²)

= √(25 ₋ 16)

= √9

= 3

Now, therefore secθ =  base(b) / perpendicular(p)

= 3/4

Hence we get the value of secθ as 3/4.

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24.
How would the following triangle be classified?
isosceles acute
scalene right
isosceles right
Scalene acute

Answers

Isosceles right triangle

Ben bought a house for $78,850 and received a rebate of 15% off. He paid 6% in sales tax. How much did he save?

Answers

$525

Step-by-step explanation:

Ben bought the house for $78,850 so 78,850 divided by 0.15 equals 525. So the answer is $525.

1. The height of a right triangular prism is 1 inches. Each side of the triangular base measures 10 inches, and the height of the base is 82 inches. The triangular prism is placed atop a cube whose side measures 10 inches so that one of the triangular prism's bases lies completely on one side of the cube.
What is the surface area of the solid formed?

Answers

If a right triangular prism's height is 1 inch. The produced solid has the following surface area: = 2,930.05 in².

Right triangular prism describing:

A polyhedron with six vertices, nine edges, and five faces is a right triangular prism. Regular prisms have all of their triangles faces equilateral. The prism's rectangular faces will be congruent in this situation.

What is the method for determining a triangular prism's total surface area?

A triangular prism's total surface area is the sum of the areas of its three lateral faces (rectangles) as well as two bases (triangles). For something like the surface area of any prism, the most generic formula is:

According to the given data:

Given:

Hight = 1 inches

Base of the prism = 10 inches.

The Hight if the base = 82 inches.

Surface area = (Perimeter of the base × Length of the prism) + (2 × Base Area)

Surface area = 5(10× 10) + (0.5÷ 10 × 1) + 3(10× 82)

Surface area = 5(100) +0.05+ 3(810)

Surface area = 500 +0.05 + 2430

Surface area = 2,930.05 in²

The produced solid has a surface area of approximately = 2,930.05 in².

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To the nearest 10 thousand

Answers

When the number given of 15,587,252 is rounded off to the nearest 10 thousand, the result would be 15,590,000.

How to round to the nearest ten thousand?

When rounding to the nearest ten thousand, you would look at the thousands number which is the 4th number before the decimal.

If this digit if more than 5, then you round the ten thousandth digit up to the nearest whole number. If the digit is less than 5, then you round down.

The number 15,587,252 has the thousands number as 7 which is more than 5 so the ten thousands number will be round up to:

= 15,590,000

Rest of the question:

Find out 15,587,252 to the nearest 10 thousand.

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Find A u B. (Use the roster method to write the set.)
A = {1, 0, 1}, B = {0, 1, 7}

Answers

Answer:

{ 0, 1 , 7}

Step-by-step explanation:

A U B= {1,0,1}. {0,1,7}

={0,1,7}

Which expression are equivalent to 13^6 divide by (13^8)(13^-4)/13^-2

Answers

Solution :-
→ 13⁶ ÷ [ {13⁸ * 13^(-4)} / 13^(-2) ]
Solving Second part first, we get,
→ [ {13⁸ * 13^(-4)} / 13^(-2) ]
using a^b * a^c = a^(b + c) in Numerator , we get,
→ [ 13^(8 - 4) / 13^(-2) ]
→ 13⁴ / 13^(-2)
→ 13⁴ ÷ 13^(-2)
using a^b ÷ a^c = a^(b - c) now , we get,
→ 13^{4 - (-2) }
→ 13^(4 + 2)
→ 13⁶.
Now , Putting this value in question we get,
→ 13⁶ ÷ 13⁶
→ 1 (Ans.)

Jemuel and Lemuel are asked to paint a house.Jemuel can paint the house by himself 16hrs and Lemuel can paint by himself in 12hrs .How long would it take to paint the house if they work together?​

Answers

Answer:

9 and 3/5 hours or 9 hours and 36 minutes

Step-by-step explanation:

Rate x times = number of jobs

Jemuel's rate is 1 job/ 16 hours.

Lemuels's rate is 1 job/12 hours.

1/16T + 1/14T = 1  Get a common denominator of 48

3/48T + 2/48 t = 1

5/48T = 1  Multiply both sides by 48/5

(45/5)(5/48)T = 1(48/5)

t = 48/5 = 9 3/5 hours.

Select the correct answer. Julie ran a race 2 minutes faster than Teri did. If Julie ran the race in 28 minutes, which equation can be used to find the number of minutes, m, it took Teri to run the race? A.m+2=28 B.m-2=28 C.2m=28 D.1/2m=28

Answers

Answer:

Step-by-step explanation:

its A. If julie ran 2 minutes more, then your simply adding 2 minutes to whatever teri got to get 28 (what julie got).

Write the expression |x − 9| + |x − 6| without the absolute value symbols if x is in the given interval.
(−∞, 1)

Answers

Recall the definition of absolute value.

[tex]|x| = \begin{cases} x & \text{if } x \ge 0 \\ -x & \text{if } x < 0 \end{cases}[/tex]

Now,

[tex]x<1 \implies x-9 \le -8 < 0 \implies |x-9| = -(x-9) = 9 - x[/tex]

and

[tex]x<1 \implies x-6 \le -6 < 0 \implies |x-6| = -(x-6) = 6 - x[/tex]

so that

[tex]|x-9| + |x-6| = (9-x) + (6 - x) = \boxed{15 - 2x}[/tex]

5(2y-3)=40y what is the answer to this question

Answers

Answer:

y=-2

Step-by-step explanation:

5(2y-3)=40y

10y-15=40y

-15=30y

-2 = y

y = -2

Two factory plants are making TV panels. Yesterday, Plant A produced 10,000 panels. Three percent of the panels from Plant A and 10% of the panels from Plant B were defective. How many panels did Plant B produce, if the overall percentage of defective panels from the two plants was 5%

Answers

If the overall percentage of the defective panels from the two plants is 5% then plant B produced 4000 panels in total.

This question can be solved by formulating the problem into the form of a linear equation having two variables. Linear equation in two variables can be represented in the form of ax+by+c=0 where a, b and c are real numbers and x, y are variables or the coefficients, and a, b ≠ 0.

Let the production from plant A be x, and according to the question x=10000.

Also, let the production from plant B be y.

Now, as 3% of products are found defective from plant A and 10% of products are found defective from plant B and overall defective products is 5%.

Thus, 0.03x+0.1y=0.05(x+y)

As x=10000 then

0.03×10000+0.1y=0.05(10000+y)

300+0.1y=500+0.05y

0.05y=200

=>y=4000

Thus, the total number of panels produced by plant B is equal to 4000.

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x
12
20
48
y
9
15
24
The table gives values from a linear relationship.
• Complete the table
• Write an equation that represents the relationship shown in the
table.

Answers

Vote my answer as the brainliest answer
Explanation:

Pls solve a question on my hw (1/5)p=15

Answers

The answer p = 75

P/5=15
P=15x5
P=75

PLEASE HELP. STEP BY STEP NEEDED

Answers

So solutions of the linear quadratic systems are (-5,-3) and (1,3)

Given,

y = x²+5x -3 . . . . . . . . . .. ..1

y-x= 2 . . . . . .. . . . . . . . . . . 2\

From 1 and 2

y=x+2

substitute y=x+2 in 1

x+2= x²+5x -3

x²+5x -x-3-2 = 0

x²+4x -5=0

x²+5x-x -5=0

x(x+5) -1(x+5) = 0

(x+5)(x-1)=0

x= -5 and x=1

at x=-5

y=x+2=-5+2=-3

at x=1

y=x+2=1+2=3

So solutions of the linear quadratic systems are (-5,-3) and (1,3)

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