3 years ago

Solve for x x/7 +9=15

Mathematics

1 answer:

Ymorist [56]3 years ago

6 0

Subtract the 9 from 9 to cancel it out. Then subtract 9 from 15, which is 6. And 6 times 7 is 42.

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At a discount electronic store, Kristoff offered a salesperson $600 for a television and table. The offer includes the 8% sales

Alex73 [517]

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Which exponential function goes through the points (1,8) and (4,64)?

vova2212 [387]

Plug in (4,64) into each answer choice.

A) 4(2)^x
64 =4(2)^4
64 = 4(16)
64 = 64

Answer choice A is correct.

B) f(x) = 2(4)^x
64 = 2(4)^4
64 = 2(256)
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Answer choice B is incorrect.

C) f(x) = 4(2)^{-x}
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Answer choice C is incorrect.

D) f(x) = 2(4)^{-x}
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64 ≠ 0.0078125

Answer choice D is incorrect.

Your answer is B<span>) f(x)=2(4)^x</span>

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3 years ago

Find the missing number in this proportion.<br><br> 7 / 35 = ? / 28

Phantasy [73]

using proportional law 5.6

6 0

3 years ago

Someone pleaseee help I’m struggling

spin [16.1K]

Step-by-step explanation:

(0,5) and (-2,-3)

y=mx+b

find m

$\frac{y1 - y2}{x1 - x2} \\ = \frac{5 - ( - 3)}{0 - ( - 2)} \\ = \frac{8}{2} \\ = 4 \\$

m=4

Substitute (0,5) or (-2,-3)

For easy processing substitute : (0,5)

y=4x+b

5=b

y=4x+5 is the answer

Brainliest please~

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3 years ago