3 years ago

I’ll give brainliest or whatever it’s called

Mathematics

1 answer:

Alex787 [66]3 years ago

6 0

I think it’s -3+-5=-8. I’m not for sure though.

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Find the 7th term of the geometric sequence with the given terms.

ohaa [14]

Answer:

1. 1458

2. 500 or -500

Step-by-step explanation:

1. a4=54, a5=162

r = 162/54 = 3

a7 = a5 × r²

= 162 × 3² = 1458

2.a4=-4, a6=-100

r² = -100/-4 = 25

r = +/- 5

a7 = a6 × r

= -100 × +/- 5

= +/- 500

3 0

3 years ago

Need help pleaseee i have a test on friday

larisa [96]

Answer:

x = 8

Step-by-step explanation:

Using the sine or cosine ratio in the right triangle and the exact value

sin30° = $\frac{1}{2}$ , then

sin30° = $\frac{opposite}{hypotenuse}$ = $\frac{4}{x}$ = $\frac{1}{2}$ ( cross- multiply )

x = 8

5 0

2 years ago

If f(x) = 5x, what is f–1(x)?

Ahat [919]

To get the inverse of a function interchange
the x's with the y'x and solve for y, as follows:
y=5x-7

Interchange to get:
x=5y-7
Solve for y to get:
y=(1/5)x+(7/5)

so I think it might be c

4 0

2 years ago

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What is the total in this sequence - 5 + 10 + ....... + 550 + 555?

deff fn [24]

◆ Arithmetic Progressions ◆

Hey !!

Check the attachment.
Hope it helps you :)

3 0

3 years ago

The ages of four groups of 10 workers at a factory are shown, which group has the largest mean absolute deviation?

k0ka [10]

I think group 1 if it is wrong then write is comment box

8 0

3 years ago

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