Answer:
Inspect the graph to see if any vertical line drawn would intersect the curve more than once.
Step-by-step explanation:
If there is any such line, the graph does not represent a function. If no vertical line can intersect the curve more than once, the graph does represent a function.
Round the following numbers to 1 significant figure: a) 276 040 b) £238.02 c) 17521 km
Answer:
a) 300000 b)£200 c) 20000km
Step-by-step explanation:
Please help help help
Find the value of x if the two triangles are similar. Explain.
Given :
The given two triangles are similar .
To find :-
The value of x .
Solution :
In larger triangle :-
90 + y + y = 180
2y = 180 - 90
2y = 90
y = 45°
As we know that ,
Corresponding Angles of similar triangles are same ,
15x = 45
x = 45/15
x = 3
Which fruit stand, A or B, offers a better deal on blueberries
Answer:
Step-by-step explanation:
Answer:BStep-by-step explanation:B cost less money bet has the same
Write a quadratic equation in STANDARD FORM given the roots:
1, 1/2
Answer:
f(x) = 2x^2 - 3x + 1
Step-by-step explanation:
The root 1 is associated with the factor (x - 1).
The root 1/2 is associated with the factor (x - 1/2), which in turn is equivalent to (2x -1)
The quadratic in question is f(x) = (x - 1)(2x - 1). To write this in standard form, perform the indicated multiplication:
f(x) = 2x^2 - 2x - x + 1, or f(x) = 2x^2 - 3x + 1
What is the decimal number 34.576 written in expanded form?
Answer:
30+4+0.5+0.07+0.006
Step-by-step explanation:
Please help me solve this problem
Answer:
i am sorry but plz help me
PLEASE HELP ITS MATH THANK YOUUUU
Answer:
2 millimeters
Step-by-step explanation:
Since that 1 millimeter is 10 meters then 20 meters which is twice will be 2 millimeters. :)
f(x)=10x^2-5x-3, evaluate f(-3)
Answer:
f(-3)= 10(-3)^2 - 5(-3) - 3
=90 + 15 -3
f(-3) = 102
Step-by-step explanation:
Convert 34.6 centimeters to inches. Use 1 in=2.54 cm.
Are these functions inverses of each other?Be sure to explain how you know they are inverse or why they are not. Show all work necessary.
Answer:
Yes. f(x) and g(x) are inverses of one another
Step-by-step explanation:
[tex]f(x) = - \frac{1}{2} x - 2 \\ y = - \frac{1}{2} x - 2 \\ x = - \frac{1}{2} y - 2 \\ x + 2 = - \frac{1}{2} y \\ - 2(x + 2) = - \frac{1}{2} y \times - 2 \\ - 2x - 4 = y \\ {f }^{ - 1} (x) = - 2x - 4[/tex]
In step 1 we just copied the original function.
In step 2 we substituted y for f(x).
in step 3 we switched the variables.
in step 4 we added 2 to both sides.
in step 5 we multiply both sides by -2
In step 6 we solved for y.
In step 7 is just a fancy way of saying the inverse function f(x) = -2x - 4
g(x)=2x^2-3 translate 9 units up
g(x)=2x^{2}+6
all you have to do is change the b vale of the equation
fast 100 points right check
Answer:
It won't let me put my answer sorry
ANSWER QUICK PLEASE!!
Factor the expression 24 y - 40 using the greatest common factor of the terms.
A. 4(6y - 20)
B. 8(3y - 5)
C. 4(24y - 40)
D. 8(3y + 5)
Answer:
Step-by-step explanation:
B
Given the expression -15 (10 2/3) A. Rewrite the expression using distributive property B. Evaluate the expression in show all your work.
9514 1404 393
Answer:
-160
Step-by-step explanation:
-15(10 2/3) = -15(10) +(-15)(2/3) = -150 -30/3 = -150 -10 = -160
The mixed number can be written as the sum of an integer and a fraction. The multiplier then multiplies the integer and the fraction separately, and the two products are added.
A cyclist travels at an average speed of 15 mph for 4 hours. How far did she travel in miles?
Answer:
60 miles per hour
Step-by-step explanation:
15 mph (miles per hour) and he traveled for 4 hours so 15 per hour times 4 which is 60 and thats your answer
Samantha spent 40 minutes on homework sixty percent of that time was spent on language arts how many minutes were spent in language art
Answer:
i think its b.24 minutes
Step-by-step explanation:
sorry if im wrong
Answer:
Samantha spent 24 minutes on language arts.
Step-by-step explanation:
So, 60% = 3/5.
Since Samantha spent 40 minutes in total for homework, the 40 minutes would be the denominator. Let's have the variable "x" equal how many minutes she spent on language arts. If we line up the fractions, it will be like this:
3/5 = x/40
Since we know 5 x 8 = 40, we would also multiply the numerator by 8.
3 x 8 =24.
So, Samantha spent 24/40 minutes on ELA, which is 60% of the total time.
What is the distance between the points (15,17) and (15,-4) in the coordinate plane?
A.
21 units
B.
10.5 units
C.
13 units
D.
2 units
Answer:
21
Step-by-step explanation:
15-15=0
17-(-4)=21
sqrt(0^2+21^2)=21
A pot contains 30 ounce's of soil. You use 2 3/4 ounces of soil to plant 1 herb.Is there enough soil in the pot to plant 10 herbs?
I need help I never got taught how to do this
Answer:
736cm²
Step-by-step explanation:
The surface area of a regular pyramid is equal to:
area of the square base + 1/2ps
where p is the perimeter of the base and
s is the height of the slant line of the pyramid.
In your drawing s = 15cm and the base has four equal lengths of 16cm
So first find the area of the base. Since this is a square, the area is just the
length x the width or 16cm x 16cm = 256cm²
(p) is the perimeter of the base. Find this by adding all four side of the bottom square together which is 16cm + 16cm + 16cm + 16cm or 4 x 16cm which is 64cm.
You already were given (s) which is the height of the slanted side from the base to the pointed top. The drawing gives you this as 15cm.
So plugging all this into the formula, you get:
Surface Area = Area of Base + 1/2 p s
= 256 cm² + [1/2 ( 64cm )(15cm)]
= 256 cm² + {1/2 ( 960 cm²)]
= 256 cm² + 480 cm²
= 736 cm²
3.HELP plz No LINKS AND NO HACKERS i will give brainlyiest NO COPIE D ANSWERSFROM OTHER USERS OR WEBSITE I WILL REPORT!!!! A scuba diver was exploring a reef 32.12 m below sea level. The diver ascended to the surface at a rate of 8.8 m/min.
(a) Write an equation to model the situation. Use the formula d = rt.
(b) Explain why it is reasonable to write the distance, d, as a positive number.
(c) How long did it take the diver to reach the surface?
Answer:
A scuba diver was exploring a reef 32.12 m below sea level. The diver ascended to the surface at a rate of 8.8 m/min.
a. using the formula d = rt, so 32.12 m = 8.8m/min (t)
b. it is reasonable to write the distance as positive because the diver is accending/ going up the surface
c. t = 32.12/ 8.8 = 3.65 min
Step-by-step explanation:
hope this helps
5. Ari is playing a board game. After 3 moves he is on
space 17. Ari's first move was forward 2 spaces, and
his third move was forward 7 spaces. What was Ari's
second move? Explain how you found the answer.
Answer:
8
Step-by-step explanation:
17-(9+2)=8
Let $\overline{AB}$ and $\overline{CD}$ be chords of a circle, that meet at point $Q$ inside the circle. If $AQ = 6,$ $BQ = 12$, and $CD = 38$, then find the minimum length of $CQ$.
9514 1404 393
Answer:
2
Step-by-step explanation:
The products of chord lengths are the same for the intersecting chords:
AQ×BQ = CQ×DQ
6×12 = CQ×(38 -CQ)
This gives a quadratic in CQ:
CQ² -38CQ +72 = 0 . . . . . write in standard form
(CQ -2)(CQ -36) = 0 . . . . . factor the quadratic
CQ = 2 or 36 . . . . . . . values of CQ that make the factors zero
The minimum length of CQ is 2 units. (DQ will be 36.)
Evaluate.
(w2x−3)÷10⋅z when w=−4, x = 0.8, and z=−4/5
Enter your answer as a simplified mixed number in the box.
⅘ ≈ 0,8
Step-by-step explanation:(w2x - 3) ÷ 10 × z
= (-4 × 2 × 0,8) ÷ 10 × -⅘
= (-8 × 0,8) ÷ -8
= -6,4 ÷ -8
= ⅘ ≈ 0,8
Conclusion:Evalute (w2x - 3) ÷ 10 × z is ⅘ ≈ 0,8.
[tex] [/tex]
After using the linear equations method we will get 1.76.
What is linear equations?
An equation is said to be linear if the highest power of a variable is consistently 1. Another name for it is a one-degree equation. A linear equation with one variable has the standard form Ax + B = 0. In this case, the variables x and A are variables, while B is a constant. A linear equation with two variables has the standard form Ax + By = C. Here, the variables x and y, the coefficients A and B, and the constant C are all present. A linear equation is one that has a degree of 1 as its highest value. No variable in a linear equation, then, has an exponent greater than 1. A linear equation's graph will always be a straight line.
How to calculate question by adding their values in the given equation?
firstly, the given equation is: [w2x-3]/10z
the things or values which are given to us:
w=-4x=0.8z=-4.5
Now putting all the values in the given equation:
[-4*2*0.8-3]/10*-4.5-9.72/-5.5
[by solving the brackets]1.76 [by solving the equation]
Hence the answer is, 1.76
To learn more about linear equations
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4. As Jody dives below the water, its temperature decreases by 0.3 degrees Fahrenheit per foot that he dives. If
Jody is diving at a rate of 2.5 feet per second and the water at the surface is at a temperature of 68 degrees
Fahrenheit then what is the temperature of the water Jody is in after diving for 20 seconds?
Using proportions and a linear function, it is found that the temperature of the water Jody is in after diving for 20 seconds is of 53 degrees Fahrenheit.
Jody is diving at a rate of 2.5 feet per second, thus, after 20 seconds, his depth is of:
[tex]20 \times 2.5 = 50[/tex]
The temperature at the surface is of 68 degrees. For each foot, it decreases by 0.3 degrees. Thus, the function is:
[tex]T(f) = 68 - 0.3f[/tex]
Jody is at a depth of 50 feet, thus the temperature is T(50).
[tex]T(50) = 68 - 0.3(50) = 53[/tex]
The temperature of the water Jody is in after diving for 20 seconds is of 53 degrees Fahrenheit.
A similar problem is given at https://brainly.com/question/24316569
What is the value of 5^3i^9?
A. -125i
B. -15i
C. 15i
D. 125i
Answer:
125i
Step-by-step explanation:
(5^3)(i^9)
=125(i^9)
=125i <-------????
Sorry not sure <:0
A jar has 20 marbles: 3 green, 12 blue, 5 red.
What is the probability of randomly choosing a red and then a green marble (keep the red marble when you choose it)?
Probability is defined as the likelihood or the certainty that an event is going to occur or happen.
The probability of randomly choosing a red and then a green marble is [tex]3/76[/tex].
The total number of marbles = 20
The number of green marbles= 3
The number of blue marbles = 12
The number of red marbles = 5
The probability of choosing a red marble = Number of red marbles / Total number of marbles
= 5/20
In simplest fraction form = [tex]\frac{1}{4}[/tex]
We are told in the question that you keep the red marble you choose, So this means the total number of marbles left reduces to 19
The probability of choosing a green marble is = Number of green marbles / New total number of marbles
= 3/19
Therefore, the probability of randomly choosing a red and then a green marble is
P (Red) x P(Green)
= 1/4 x 3/19
= [tex]3/76[/tex]
To learn more, visit the link below:
https://brainly.com/question/22563776
Please Help me!! (No Links Please) HELP!!!
Answer:D
Step-by-step explanation:
A is not Linear
B is not Linear
C is not Linear
Somebody please help me w/ this <3
Answer:
2 times
Step-by-step explanation:
The longest worm is 2 times the length of the shortest worm
Can someone help me out please
Answer:
The function is even.
Step-by-step explanation:
The graph resembles y = 1/x^2.
are the two triangles congruent 6cm 13cm
Congruent triangles are triangles that have equal corresponding angles and sides.
There is no enough information to determine if the triangles are congruent.
From the images of the triangles (see attachment), we can see that the two triangles have 6cm and 13cm as the lengths of their sides.
However, the side lengths of both triangles are not corresponding, and the angle measures are not given.
Hence, there is no enough information to determine if the triangles are congruent.
Read more about congruent triangles at:
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