2 years ago

6x7-8/4 using the order of operations will reward 10 pts best answer will be marked brainliest.

Mathematics

1 answer:

Phantasy [73]2 years ago

8 0

Answer:

Step-by-step explanation:

6x7-8/4 =42 - 2 = 40

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Please help! Will give brainliest!

Zanzabum

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Step-by-step explanation:

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3 years ago

If you know that R' (20)=50 and R''(20)=-4, approximate R'(24)

vladimir1956 [14]

Approximate R' by using a linear approximation: for x close enough to 24, you have

R'(x) ≈ L(x) = R' (20) + R'' (20) (x - 20)

Then

R' (24) ≈ R' (20) + R'' (20) (24 - 20) = -4 + 50 (24 - 20) = 196

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2 years ago

claim: the mean pulse rate (in beats per minute) of adult males is equal to 6969 bpm. for a random sample of 125125 adult ma

RoseWind [281]

Answer:

t=0.21

Step-by-step explanation:

Given $\bar x=69.2, s=10.9, n=125$ and a population mean $\mu=69$ .

#We state our hypothesis as:

$H_o:\mu=69\\\\H_a:\mu\neq 69$

The evidence available should validate either the null or alternative hypothesis.

#We calculate the test statistic as:

$t=\frac{\bar x-\mu_}{s/\sqrt{n}}\\\\\\=\frac{69.2-69}{10.9/\sqrt{125}}\\\\\\=0.2051$

$\approx0.21$

Hence, the test statistic is t=0.21

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2 years ago

There are 56 customer in a shop.24 of them are men.the rest of the customers are women in the shop

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Answer:

There are 32 women in the shop.

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The second choice
It has adding on both sides

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