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3 years ago

Check all that apply please

Mathematics

1 answer:

nydimaria [60]3 years ago

7 0

Answer:

1, scalene 2, equilateral 3, scalene 4, isosceles

Step-by-step explanation:

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Please help me!!! Thank you!!

vova2212 [387]

Answer:

Part A - 4x + 8 dollars

Part B - $45

Step-by-step explanation:

6 0

3 years ago

Find the vertex of f(x) = 3(x-7)(x+5)

Inessa05 [86]

Answer:

The vertex is at (1, -108).

Step-by-step explanation:

We have the function:

$f(x)=3(x-7)(x+5)$

And we want to find its vertex point.

Note that this is in factored form. Hence, our roots/zeros are x = 7 and x = -5.

Since a parabola is symmetric along its vertex, the x-coordinate of the vertex is halfway between the two zeros. Hence:

$\displaystyle x=\frac{7+(-5)}{2}=\frac{2}{2}=1$

To find the y-coordinate, substitute this back into the function. Hence:

$f(1)=3((1)-7)((1)+5)=3(-6)(6)=-108$

Therefore, our vertex is at (1, -108).

4 0

3 years ago

Read 2 more answers

A number p is greater than or equal to –17. How do I find the answer?

Mila [183]

Answer:

You're answer has be written as an inequality, therefore it would be;

=> p ≥ -17

Hope this helps!

8 0

3 years ago

Read 2 more answers

What is the largest rectangular area that can be enclosed with 400 feet of fencing?

jek_recluse [69]

Let the length = x
2 lengths are 2x.
Then you have 400 - 2x for both widths, so the width is 200 - x.
The are if the rectangle is

y = x(200 - x)

y = 200x - x^2

y = -x^2 + 200x

Take the first derivative ans set equal to zero to find a maximum value.

y' = -2x + 200

-2x + 200 = 0

-2x = -200

x = 100

Since the side of the rectangle is 100, all sides measure 100 ft, and you have a square.
The maximum area is 100 ft * 100 ft = 10,000 ft.

3 0

4 years ago

Question is in the image! If you can work this out you are legendary! I'll give brainliest instantly :p

NISA [10]

Hope this helps!!
Answer: 14.13

4 0

3 years ago

Read 2 more answers