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3 years ago

7

HELP please! I'll mark Brainliest!!!!

2 answers:

Anettt [7]3 years ago

4 0

The correct answer is a

Bad White [126]3 years ago

3 0

A. Survey a random section of drivers passing through the state's highway toll booths

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n Richmond, Virginia, the average daily high temperature was 90°F for July. The average daily low temperatures for the same mont

Aneli [31]

Answer:

The percent change between the high and low of July is 21 degrees Fareinheit

7 0

3 years ago

Read 2 more answers

1- ? divided by 3 = -7 <br> 2- -50 divided by ? =10<br> 3- ? divided by -2 = 10

vagabundo [1.1K]

1.) -21
2.) 5
3.) -20
bdhdhdhfh

8 0

4 years ago

A cyclist rides his bike at 12 miles per hour. What is this speed per minute? How many miles will the cyclist travel in 20 minut

grandymaker [24]

Answer:

In order to find the distance traveled in one minute, you have to divide the distance he can ride his bike in an hour by the number of minutes in a hour. 6/60= .1 mile per minute. If he rides his bike for five minutes, then you would multiply the number of minutes biked by the distance traveled in a minute. .1*5=.5 mile, or $\frac{1}{2}$ mile.

Step-by-step explanation:

4 0

3 years ago

Help! Find the domain of the graph

MatroZZZ [7]

Answer:

[-3,9]

Step-by-step explanation:

you look at the x axis

3 0

3 years ago

which statements are true about the graph of the function f(x) = 6x – 4 x2? check all that apply. the vertex form of the functio

Brut [27]

Answer:

The vertex of the function is the point $(-3,-13)$

The graph increase over the interval--------> (-3,∞)

Step-by-step explanation:

we have

$f(x)=6x-4+x^{2}$

<u>1) Convert to vertex form</u>

Group terms that contain the same variable, and move the constant to the opposite side of the equation

$f(x)+4=x^{2}+6x$

Complete the square. Remember to balance the equation by adding the same constants to each side

$f(x)+4+9=x^{2}+6x+9$

$f(x)+13=x^{2}+6x+9$

Rewrite as perfect squares

$f(x)+13=(x+3)^{2}$

$f(x)=(x+3)^{2}-13$ -----> function in vertex form

<u>2) Find the vertex</u>

The vertex of the function is the point $(-3,-13)$

<u>3) Find the axis of symmetry</u>

we know that

In a vertical parabola, the axis of symmetry is equal to the x-coordinate of the vertex

The x-coordinate of the vertex in this problem is equal to $x=-3$

therefore

the equation of the axis of symmetry is $x=-3$

<u>4) Find the increase-decrease intervals</u>

The graph increase over the interval--------> (-3,∞)

The graph decrease over the interval--------> (-∞,-3)

see the attached figure to better understand the problem

<u>5) Find the x-intercepts of the function</u>

we know that

the x-intercepts are the values of x when the value of the function is equal to zero

In this problem the x-intercepts are

$(-6.61,0)$ and $(0.61,0)$

so

The function cross the x-axis twice

see the attached figure

5 0

4 years ago

Read 2 more answers