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Sunny_sXe [5.5K]
2 years ago
7

HELP DUE IN 15 MINUETS!!! y = - 2/3 x + 1 , which is the graph of this equation?

Mathematics
2 answers:
qaws [65]2 years ago
5 0
I take a nap buy lol
tensa zangetsu [6.8K]2 years ago
4 0
The y-intercept is 1, the slope is -2/3, so the graph is B, the second one down.
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Determine the volume of the composite figure!
Y_Kistochka [10]

Answer:

1017.88

Step-by-step explanation:

i used the formula of V=πr2h

3 a for the cone and then also 4

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5 0
2 years ago
ASAPPP!!!! HELP I WILL GIVE 100POINTS AND BRAINLIST Question 9 (Essay Worth 10 points)
Luda [366]

Answer:

Part A)

The <em>x-</em>intercepts are (-1/4, 0) and (4, 0).

Part B)

The vertex is a maximum because the leading coefficient is negative.

The vertex is (1.875, 72.25).

Part C)

We can plot the zeros and the vertex, and connect them with a curve.

Step-by-step explanation:

The function given is:

f(x)=-16x^2+60x+16

Part A)

To find the <em>x-</em>intercepts of the function, set the function equal to 0 and solve for <em>x: </em>

<em />0=-16x^2+60x+16<em />

We can divide both sides by negative four:

0=4x^2-15x-4

Factor:

0=(4x+1)(x-4)

Zero Product Property:

x-4=0\text{ or } 4x+1=0

Solve for each case:

\displaystyle x=-\frac{1}{4}\text{ or }x=4

Hence, our zeros are:

\displaystyle \left(-\frac{1}{4}, 0\right)\text{ and } \left(4, 0\right)

Part B)

Note that the leading coefficient of our function is negative.

So, our function will be concave down.

Hence, our vertex will be the maximum.

The vertex is given by:

\displaystyle \left(-\frac{b}{2a}, f\left(-\frac{b}{2a}\right)\right)

In this case, <em>a </em>= -16, <em>b</em> = 60, and <em>c</em> = 16.

Find the <em>x-</em>coordinate of the vertex:

\displaystyle x=-\frac{(60)}{2(-16)}=\frac{15}{8}=1.875

Substitute this back into the function to find the <em>y-</em>coordinate:

f(1.875)=-16(1.875)^2+60(1.875)+16=72.25

Hence, our vertex is:

(1.875, 72.25)

Part C)

Since we already determined the zeros and the vertex, we can plot the two zeros and the vertex and draw a curve between the three points.

The graph is shown below. Again, to do this by hand, simply plot the three points and connect them with a parabola. If necessary, we can also find the <em>y-</em>intercept.

7 0
2 years ago
A rectangular cooler made of MycoFoam is 13 inches wide, 7 inches tall, and 7 inches long. what is its surface area?
yarga [219]
To find area u have to multiply the sides so it should be 7x7 or 13x7 it shouldnt be 13x7x7
6 0
3 years ago
83 rounded to the nearest 10th place​
Molodets [167]

Answer:

80

Step-by-step explanation:

5 0
3 years ago
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molly shot 20 baskets in 4 minutes Nico shot 42 baskets in 6 minuets how many more baskets did nico shoot per minuete did
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Nico shot more baskets. Molly shot 5 baskets per minute. 20/4=5 Nico shot 7 baskets per minute. 42/6=7
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