3 years ago

Can some one help me with this question its hard :( down below ill give brainliest

Mathematics

1 answer:

tresset_1 [31]3 years ago

6 0

Answer:

B) 7^2 x 7^3

Step-by-step explanation:

B is 7^5 , everything else is 7^4

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Help me plz !!!!!!!!!!!!!!!!!

trapecia [35]

Answer:

the answer should be 54.6 grams

7 0

2 years ago

What is the quotient of 4 2/3s÷4 1/5

SpyIntel [72]

Is the s suppose to be “s” there?

Use the inverse of the 2 number & multiply.

14 * 5

—— ——-

3 21

70/63

Reduced to 10/9 or 1 1/9

5 0

3 years ago

Read 2 more answers

miguel walked 3/4 miles to the library and then 3/8 miles to the post office. Which statement is true?

Paraphin [41]

Answer:

Post office is true because 3/4 miles is 1320 yards and 3/8 is only 660 yards. So basically it will take A LONG TIME for him to get there at the library. But you know I am not always accurate /:

6 0

2 years ago

URGENT!!<br> The difference between the roots of the quadratic equation x2−12x+q=0 is 2. Find q

Tasya [4]

Answer:

-24

Step-by-step explanation:

substitute by 2

2²-12×2+q=0

q=-24

8 0

2 years ago

Use the normal distribution to find a confidence interval for a proportion p given the relevant sample results. Give the best po

Brrunno [24]

Answer: (0.63, 7.07)

Step-by-step explanation:

The confidence interval for population proportion is given by :-

$\hat{p}\pm z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

Given : $\hat{p} =0.7$ ; $n=110$

Significance level : $1-0.90=0.1$

Critical value : $z_{\alpha/2}=1.645$

Now, a 90% confidence interval for population proportion will be :-

$0.7\pm (1.645)\sqrt{\dfrac{0.7(1-0.7)}{110}}\\\\\approx0.7\pm0.07\\\\=(0.7-0.07,0.7+0.07)=(0.63,\ 7.07)$

Hence, a 90% confidence interval for population proportion = (0.63, 7.07)

5 0

2 years ago