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2 years ago

Choose the correct answer from the given four options:In an AP if a = –7.2, d = 3.6, an = 7.2, then n

Mathematics

1 answer:

Serggg [28]2 years ago

5 0

Answer:

n=5

Step-by-step explanation:

by using

n=(an-a)/a+1

substituting values

n= 7.2-(-7.2)/3.6 +1

n=5

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A toy rocket is launched straight up into the air with an initial velocity of 60 ft/s from a table 3 ft above the ground. If acc

alexdok [17]

The equation is:
h ( t ) = - 16 t² + 60 t + 3
The toy rocket will reach the ground when: h ( t ) = 0
- 16 t² + 60 t + 3 = 0
$t _{12} = \frac{-60+/- \sqrt{3600+192} }{-32}$
t 1 = - 0.05
t 2 = 3.8
Answer:
C ) 3.80 s

3 0

3 years ago

Please answer i’ll give extra points

Rufina [12.5K]

Answer:

i think it might be d

Step-by-step explanation:

7 0

3 years ago

If 90 is in 80% of value,what is that value

babunello [35]

Answer:

112.5

Step-by-step explanation:

$\frac{90}{?} =\frac{80}{100}$

you would then cross multiply. 90 x 100 and 80 x ?

you will then have 9000 = 80?

divide 9000 by 80 and you will get ? = 112.5

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7 0

3 years ago

Read 2 more answers

Plz help this is due tomorrow<br><img src="https://tex.z-dn.net/?f=%284%20%2B%20%5Csqrt%7B2%7D%20%29%286%20-%20%5Csqrt%7B2%7D%20

Marizza181 [45]

Answer:

22 + 2|/2

Step-by-step explanation:

24 - 4|/2 + 6|/2 - |/4

24 + 2|/2 - 2

24 - 2 + 2|/2

22 + 2|/2

note: |/ means root

couldn't find a sign for root so just makeshift with that

hope it helps.

5 0

2 years ago

In circle O, the measure of ABC is 68. what is the measure of AC?

mixer [17]

Answer:
A.
Step-by-step explanation:
We have been given a diagram. We are asked to find the measure of angle ABC.
First of all, we will find measure of major arc AC by subtracting 146 from 360 degrees.

Now, we will use tangent-tangent angle theorem to solve for ABC.
Tangent-Tangent angle theorem states that angle formed by two tangents outside a circle is half the difference of intercepted arcs.

Therefore, the measure of angle ABC is 34 degrees and option A is the correct choice.

4 0

3 years ago