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2 years ago

Someone please help solve this!! I’ll give brainlist

Mathematics

1 answer:

dem82 [27]2 years ago

7 0

Answer:

Inital height is 20

Step-by-step explanation:

h= (-5x-5)(x-4)

h= -5x^2+15x+20

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Consider the quadratic function:

sdas [7]

Answer:

Step-by-step explanation:

I'm not sure how you are finding this in class, but the easiest way by far is to use the expressions for h and k:

$h=\frac{-b}{2a}$ and

$k=c-\frac{b^2}{4a}$

(Just a fun fact: Those expressions come from the quadratic formula that help us to factor a quadratic equation.)

Filling in for h:

$h=\frac{-(-8)}{2(1)}$ simplifies to

$h = \frac{8}{2}=4$

Filling in for k:

$k=-9-\frac{(-8)^2}{4(1)}$ which simplifies a bit to

$k=-9-\frac{64}{4}$ which simplifies a bit more to

$k=-9-16=-25$

The vertex, then, is (4, -25).

You would also find this if you completed the square. But again, I'm not sure how you're solving for the vertex in class.

8 0

2 years ago

What is the value of n in the equation 2n+19=21

dimaraw [331]

Step-by-step explanation:

$2n + 19 = 21$

$2n = 21 - 19$

$2n = 2$

$n = 2 \div 2$

Therefore, N = 1

hope it helps don't forget to like and mark me down

8 0

2 years ago

Read 2 more answers

The Formula for the Area of a Triangle is: =1/2ℎ. Solve for .

rosijanka [135]

Answer:

But there is no question. And the formula for the area of a triangle is 1/2bh not 1/2h.

Thank you.

6 0

2 years ago

Is 1/3, 2/3, 4/3, 8/3, 16/3 arithmetic sequence

11111nata11111 [884]

The given sequence is not arithmetic sequence

Solution:

Given sequence is:

$\frac{1}{3} , \frac{2}{3} , \frac{4}{3} , \frac{8}{3} , \frac{16}{3}$

We have to find if the above sequence is arithmetic sequence or not

An arithmetic sequence is a sequence of numbers such that the difference of any two successive members of the sequence is a constant

Here in the given sequence

$\text{ first term } = a_1 = \frac{1}{3}\\\\\text{ second term } = a_2 = \frac{2}{3}\\\\\text{ third term } = a_3 = \frac{4}{3}\\\\\text{ fourth term } = a_4 = \frac{8}{3}\\\\\text{ fifth term } = a_5 = \frac{16}{3}$

Let us find the difference between terms

$a_2 - a_1 = \frac{2}{3} - \frac{1}{3} = \frac{1}{3}$

$a_3 - a_2 = \frac{4}{3} - \frac{2}{3} = \frac{2}{3}$

$a_4 - a_3 = \frac{8}{3} - \frac{4}{3} = \frac{4}{3}$

$a_5 - a_4 = \frac{16}{3} - \frac{8}{3} = \frac{8}{3}$

Thus the difference between terms is not constant

So the given sequence is not arithmetic sequence

5 0

2 years ago

A jacket at Academy is $60. You have a coupon for 20% off. What is the new price?

svetlana [45]

Answer:

$48

Step-by-step explanation:

7 0

2 years ago