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Verizon [17]
3 years ago
12

Geometry math question no Guessing

Mathematics
2 answers:
iVinArrow [24]3 years ago
8 0

You find the y-intercept by substituting 0 for x:-

y = -2(0) + 7

so its the point (0, 7)

A 90 degree rotation takes the 0 to 7 and the 7 to 0.

So its the point (7 , 0)

Option C

tamaranim1 [39]3 years ago
5 0
It’s C because the y interval would be greater than X
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matrenka [14]
B.t<span>he polygon is equiangular but not equilateral. this should be correct </span>
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3 years ago
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F (x) =2x -4; find f (-4)
NemiM [27]

Answer:

f(-4) = -12

Step-by-step explanation:

f(x)=2x-4

To calculate f(-4), we need to substitute x in our equation above with -4:

f(x)=2x-4\\f(-4) = 2*(-4) - 4\\f(-4) = -8-4 = -12

Note that 2*(-4) = -8

Answer: f(-4) = -12

6 0
3 years ago
Select True or False to correctly classify each inequality.
Ksivusya [100]
<h2><u><em>Answer:</em></u></h2>

<u><em>1. FALSE</em></u>

<u><em>2. TRUE</em></u>

<u><em>3. FALSE</em></u>

<u><em>4. TRUE</em></u>

<h2>Step-by-step explanation:</h2>

<em>6≤-6 = False</em>

<em>-3<3 = True</em>

<em>2.9>2.9 = False</em>

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3 0
2 years ago
I need help on number 18
zloy xaker [14]

Answer:

Volume = 35185.8 km^{3}

Step-by-step explanation:

Recall the formula for the volume of a cone: Volume = \pi  R^{2}  \frac{h}{3}

Where R is the radius of the cone's circular base (in your case half of 80 km,(that is 40 km)

And h stands for the height of the cone (in your case 21 km)

We replace such in the formula and calculate its final value:

Volume = \pi 40^{2} \frac{21}{3} = \pi  1600 \frac{21}{3} = \pi 1600 (7) = 35185.83772...

We round it to the number of decimals your problem request (let's say to one decimal) and also include the cubic units:

Volume = 35185.8 km^{3}

7 0
2 years ago
What is f(−3) for the function f(a)=−2a2−5a+4?
Readme [11.4K]

Answer:

f(-3)

f(a) = -2a² - 5a + 4

Substitute a with its value, -3

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f(-3) = -2(9) + 15 + 4

f(-3) = -18 + 19

f(-3) = 1

the value of f(-3) is 1.

7 0
2 years ago
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