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3 years ago

PLEASE HELP IM GOING TO FAIL WILL GIVE BRAINLESS

Mathematics

1 answer:

Sav [38]3 years ago

4 0

Give me brainless cuz I according to me it's 24

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F (x)=2x-1 find (-1)

torisob [31]

-3

Explanation:

If f(x)=f(-1) then you just fill in -1 where x is.

2*-1-1
-2-1
-3

5 0

3 years ago

A student types 160 words in 4 min which unit rate represents this ratio

zepelin [54]

40 wpm. Because 160/4=40.
I hope that helped!

5 0

3 years ago

Find the area of the shaded region. Round your answer to the nearest tenth. 9 m 20 9 m area aboutm? pls explain how.

Alenkinab [10]

Answer:

The area of the shaded region is 17.4 square meters.

Step-by-step explanation:

Since the shaded region in the center equals the remainders of a circle, the area of a square equals its side squared, and the area of a circle equals π times the radius squared, for To determine the area of the shaded region, the following calculations should be performed:

(9 ^ 2) - (π x (9/2) ^ 2) = X

81 - (π x 4.5 ^ 2) = X

81 - (3.141 x 4.5 ^ 2) = X

81 - 3.141 x 20.25 = X

81 - 63.6 = X

17.4 = X

Thus, the area of the shaded region is 17.4 square meters.

5 0

3 years ago

Apple launches an ad campaign for iPhone 12. Managers want to know what is the % of social media mentions that have positive rea

Orlov [11]

Answer:

social media mentions do managers at Apple need to collect, if they want to get a margin of error of 2%

Sample size 'n' = 625

Step-by-step explanation:

Step(i):-

Given data Apple launches an ad campaign for iPhone 12

Managers want to know what is the % of social media mentions that have positive reactions to the new ad campaign

probability of positive reactions p = 1/2

Probability of negative reactions q = 1-p = 1/2

we know that $\sqrt{p(1-p}\leq \frac{1}{2}$

Step(ii):-

Given margin of error = 2 % =0.02

The margin of error is determined by

$M.E = \frac{\sqrt{p(1-p} }{\sqrt{n} }$

$0.02 = \frac{\frac{1}{2} }{\sqrt{n} }$

$\sqrt{n} =\frac{1}{2 X0.02}$

√n = 25

squaring on both sides, we get

n = 625

8 0

3 years ago

ASAP!!! Please answer!!

Ronch [10]

Answer:

x=8g/3(k+d)

Step-by-step explanation:

Move all terms to the left side and set equal to zero. Then set each factor equal to zero.

Hope this helps

6 0

3 years ago

Read 2 more answers