5
an
The distance between two cities on a map is 3.5 centimeters. The map uses a scale in which 1
centimeter represents 20 kilometers. What is the actual distance between these two cities in
kilometers? hi
Answer:
(0,2),(1,6),(−2,−6) are solutions
Write the equation of the line that passes through the points (9,3)(9,3) and (-7,-7)
Answer:
y=5/8x-21/8
Step-by-step explanation:
Write a number that has a 6 in the thousandths place, a 5 in the hundredths place, and a 0 in the tenths place. Then write a number less than your number and greater than your number
Answer:
i am not sure bi it may be 2
Factorise the link expression 5(x- 2) - y(2-x)
Step-by-step explanation:
5(x- 2) - y(2-x)
5(x- 2) - -y(x-2)
5(x- 2) + y(x-2)
=(5+y) (x-2)
Question today susan has 12.6 m ribbon to make flowers if she has to make 4 flowers,how ribbon would use to make 4 flowers
Step-by-step explanation:
3.15m or 3 3/20m
She has a total of 12.6m of ribbbon.
She has to make 4 flowers and each has ribbon.
You take 12.6÷4
Answer:
she would use 3.15 meters on each flower because when you divide 12.6 meters by 4 it equals 3.15 meters.
I need help with factoring trinomals.
Please explain how you got the answer.
9514 1404 393
Answer:
(x +6)(3x +4)
Step-by-step explanation:
The usual approach to this is to look for factors of the product 3·24 that have a sum of 22.
72 = 1·72 = 2·36 = 3·24 = 4·18 = 6·12 = 8·9
Sums of these factor pairs are 73, 38, 27, 22, 18, 17.
Now, you can rewrite the expression splitting the middle term into two parts:
3x² +4x +18x +24
x(3x +4) +6(3x +4) . . . . . . factor by grouping
(x +6)(3x +4) . . . . . . . . . . your factored form
_____
Additional comment
I find this method easiest to explain and to do without error. There are various "X" methods in which you write the product at the top (3·24) and the sum at the bottom (22), then fill in the sides with the factors having that product and sum (4, 18). When the leading coefficient is not 1, there are methods added to this that get you to the correct factors.
One such method is to use the leading coefficient inside parentheses: (3x+4)(3x+18) Then divide that product by the leading coefficient:
(3x +4)(3x +18)/3 = (3x +4)(x +6).
In some cases, each of the binomials needs to be divided by part of the leading coefficient; not the whole thing, as here.
[tex]\\ \sf\Rrightarrow 3x^2+22x+24[/tex]
Use midterm splitation[tex]\\ \sf\Rrightarrow 3x^2+18x+4x+24[/tex]
Take 3x and 4 common[tex]\\ \sf\Rrightarrow 3x(x+6)+4(x+6)[/tex]
Simplify[tex]\\ \sf\Rrightarrow (3x+4)(x+6)[/tex]
Done!
Is (2,3), a solution to the system of equation x2 + y2 = 13 and 2x - y=4?
True
False
Identify the zeros of the function allgebraically
F(x)=x+2
Answer:
x = -2
Step-by-step explanation:
Equate x+2 with 0
x+2 = 0
x = -2
Feel free to mark this as brainliest! :D
please answer for question 8 and A and B
I factory produced 90 pairs of designer jeans And inspector Randomly choose his 6 pairs of jeans And discovers that 1 of the Pairs of jeans Pairs of jeans Is defective.
A. What is this experimental probability that a pair of jeans inspected will be defective.
B. How many of the 90 pairs of jeans would you expect to be defective.
I need help PLEASE!
Which of the statements about the graph below is true the first answer
Answer:
yes the first answer hope you get it right
Express 2700 as a product of prime numbers or find the prime factorization of 2700 leaving
your answer in index form or notation
A flat fee of $15.25 plus $3.45 per pound of supplies ordered is added to the bill to cover the shipping cost.The teacher budgets $49.75 for the shipping cost.Which list of values best represents the entire domain for shipping, f(x), as a function of the number of whole pounds of school supplies the teacher can order, x?
The domain of a function is the set of possible input value, the function can take.
The domain is [0,10]
The given parameters are:
[tex]Flat\ Fee = 15.25[/tex]
[tex]Rate = 3.45[/tex]
So, the function f(x) is:
[tex]f(x) = Flat\ Fee + Rate \times x[/tex]
[tex]f(x) = 15.25 + 3.45 \times x[/tex]
[tex]f(x) = 15.25 + 3.45x[/tex]
Because x represents the number of orders, the value of x cannot be negative.
The teacher budgets $49.75.
This means that: f(x) = 49.75
So, we have:
[tex]49.75 = 15.25 + 3.45x[/tex]
Collect like terms
[tex]49.75 - 15.25 = 3.45x[/tex]
[tex]34.5 = 3.45x[/tex]
Divide both sides by 3.45
[tex]10 = x[/tex]
Rewrite as
[tex]x = 10[/tex]
Hence, the domain is [0,10]
Read more about domains at:
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A group of 5 friends is shering 2 pounds of trail mix .Write a division problem and a fraction to represent this situation
Answer:
Division problem - 2/5
Fraction - 2/5
Step-by-step explanation:
The answer is the same because in mathematical situations, division and fraction is considered same.
Write Your Own Problem
Answer:
Step-by-step explanation:
You could find the mean, median or range of the numbers?
Solve:
e + 13.2 = 289.47
Answer:
Evaluate.
15.91828182 = 289.47
which of the following number is the greatest number? a)23,675 b)66,072 c)25,976 d)91,731
Answer:
D. 91,731
Step-by-step explanation:
91,731 would be the greatest number since it has the largest number in the ten-thousands place.
Use the quadratic formula to find the solutions to the quadratic equation
below.
3x^2-5x+4=0
Answer: x
=
5
±
i
√
23
6
Explanation:
y
=
3
x
2
−
5
x
+
4
=
0
Use the improved quadratic formula.
D
=
d
2
=
b
2
−
4
a
c
=
25
−
48
=
−
23
=
23
i
2
-->
d
=
±
i
√
23
There are no real roots. There are 2 complex roots:
x
=
−
b
2
a
±
d
2
a
=
5
6
±
i
√
23
6
=
5
±
i
√
23
6
Step-by-step explanation:
Answer:
X= (5 ± i√23)/6
The price of an item yesterday was $130. Today, the price rose to $299. Find the percentage increase.
Answer:
130%
Step-by-step explanation:
Use the formula for percent change: difference = % * original price
To find the difference, you have to do 299 - 130, which is 169.
The original price is $130 because this is the price before it rose to $299.
Now, you have the equation 169 = % * 130.
We don’t know the percentage right? No, so we have to find the percentage by dividing 169 by 130, which gives you 1.3. Lastly turn 1.3 into a percentage by multiplying 1.3 by 100, and 1.3 as a percentage is 130%. So therefore, the percent increase is 130%.
130%
Step-by-step explanation:
Yesterday = $130.
Today = $299 .
((final price - initial price)/(initial price)) × 100%
= (($299 - $130)/$130) × 100%
= ($169/$130) × 100%
= $1,3 × 100%
= 1,3 × 100%
= 130%
What equation do you use to find the slope of a line? I believe it is y=mx+b but I forgot.....
What is the value of f(x) = 5x +1 at f(-4) ?
help please and show working
Answer:
27/4 or 6 3/4
Step-by-step explanation:
Change all mixed numbers into improper fractions
2 1/9 = 19/9
6 1/4 = 25/4
19/9 ÷ 2/3 - 25/4 x 2/5
dividing fractions you can multiply and use reciprocal of the fraction (means you switch the top and bottom numbers)
19/9 x 3/2 - 25/4 x 2/5
you can reduce the top and bottom numbers to make them smaller by dividing. find a common number to divide them by, you can cross out the numbers and just put the new equation below
19/3 x 1/2 - 5/4 x 2/1
multiply across the fractions first PEMDAS, then subtract
19/6 - 10/4 (multiply by 2 and 3 respectively to get both bottom numbers the same, multiply by the same number on top)
57/12 - 30/12 = 27/12
1/5 x 1/3 + 2/5 x 2/3
1/15 + 4/15 = 5/15 or 1/3
27/12 / 1/3
you can multiply the fractions and flip the top and bottom numbers of 1/3
27/12 x 3/1
reduce 12 and 3
27/4 x 1/1 = 27/4 or 6 3/4
The problem 72➗12 will have a quotient greater than the problem 7.2➗12.true or false HELLLLLP QUICK
Pleaseee Help me plzz
Answer:
70
Step-by-step explanation:
I need help please there are three more questions after that and they are 7/10+2/5+3/4
NUMBER 2: 3/4+7/8+5/6 NUMBER 3: 3/5+7/8+3/10
Answer:
1. 19/21 which is closest to 1
2. 1 hour , 1 hour , 2 hours
3. 19/21
4. 11/15
5. second statement is correct ( should be
closer to 1/2)
6. 7/10+2/5+3/4= 37/20
7. 3/4 +7/8+5/6= 59/20
8. 3/5 + 7/8+3/10= 71/40
What is the midpoint of a line with endpoints (6,5) and (14,7), (Your answer
should be an ordered pair)
Answer:
Midpoint = (10,6)
Step-by-step explanation:
Using Coordinates: X(6,5) and Y(14,7)
Using the midpoint formula: M = (X1 +Y1)/2, (X2 + Y2)/2
Midpoint of XY = (6 + 14) / 2, (5 + 7) / 2
Midpoint of XY = (20) / 2, (12) / 2
Therefore the midpoint of XY is (10,6)
A cartoon of staples has 50 packages. The carton contains 25,000 staples in all. Each package has an equal number of staples. How many staples are in each package? Explain how to use a basic fact to find the answer.
Can someone pls help me out
Answer:
option a. similar;AA similarity; triangle plm
Tina babysits children in her neighborhood. When Tina is asked her rate, she tells her neighbors that she charges $15 for the first hour and $8 for each hour after. If Tina's neighbor asks Tina to babysits for 4 hours, how much will Tina earn? Write an equation to model and solve the problem. Write the answer as an ordered pair and explain the meaning of the ordered pair.
The amount charged is an illustration of a linear equation.
Tina charges $39 for 4 hours
The given parameters are:
[tex]Base = 15[/tex] --- amount charged for the first hour
[tex]Rate = 8[/tex] --- amount charged for the extra hours
If Tina babysits for 4 hours, it means that:
She will charge $15 for the first hour$8 for the extra 3 hoursSo, the total charges is:
[tex]Total = 15 + 3 \times 8[/tex]
[tex]Total = 15 + 24[/tex]
[tex]Total = 39[/tex]
The ordered pair is (4,39)
It means that:
She charges $39 for 4 hours
Read more about linear functions at:
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lol here again
what is 7.5% of 30 rounded to the nearest tenth (as a decimal)
Answer:
2.3
Step-by-step explanation:
What is 20x8 divided by 3-5
Answer:
-80
Step-by-step explanation:
→ Complete the multiplication
20 × 8 = 160
→ Complete the take away
3 - 5 = -2
→ Divide the two answers from each other
160 ÷ -2 = -80