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4 years ago

PLZZZZZZZZZZZ HELP ITS SUPER FAST AND EASY

Mathematics

1 answer:

svetlana [45]4 years ago

7 0

I think the right one is 3.75

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What is 72 ÷ 8 + 4y3 when y = 3?

bekas [8.4K]

Answer:

117

Step-by-step explanation:

Given

72 ÷ 8 + 4y³ with y = 3, substitute y = 3 into the expression

= 72 ÷ 8 + 4 × 3³ ← evaluate exponent

= 72 ÷ 8 + 4 × 27 ← evaluate division and multiplication

= 9 + 108 ← calculate addition

= 117

6 0

3 years ago

Krystal buys a bag of cookies that contains 9 chocolate chip cookies, 7 peanut butter cookies, 7 sugar cookies and 7 oatmeal rai

d1i1m1o1n [39]

Answer:

7/145

Step-by-step explanation:

We have

9 chocolate chip cookies

7 peanut butter cookies

7 sugar cookies

7 oatmeal raisin cookies.

9+7+7+7 = 30 cookies.

What is the probability that Krystal randomly selects a peanut butter cookie from the bag, eats it, then randomly selects another peanut butter cookie?

Initially, there are 30 cookies, 7 of which are peanut butter cookies. So the probability that Krystal selects a peanut butter from the bag is 7/30.

Suppose she selected the peanut butter cookie. Now there are 29 cookies, of which 6 are peanut butter. So the probability that the second one is a peanut butter cookie is 6/29.

Probability that both are peanut butter cookies:

Multiplication

$P = \frac{7}{30}\frac{6}{29} = \frac{7}{145}$

5 0

3 years ago

A pair of shoes costs $30.99 and the state sales tax is 5%. Use the formula C = p + rp to find the total cost of the shoes, wher

liberstina [14]

First, write the rate as a decimal by moving the decimal point two places to the left from the percent.

r = 5% = 0.05

C = p + rp

C = 30.99 + 0.05 * 30.99

C = 30.99 + 1.55

C = 32.54

Answer: The total cost is $32.54

5 0

3 years ago

4 m =____ μm??<br>Someone? i need to the answer:)<br>

Sergeu [11.5K]

4000000 micrometers

8 0

3 years ago

Need help with these 2 questions ASAP, no links and a answer with an explanation will get brainly

marin [14]

Answer:

Yes, Fiona is correct

Step-by-step explanation:

WHen the pythagorean theorem is applied to the side lengths (2^2 + 4^2 = c^2), the result for c^2 is 20. The correct answer would be sqrt.20. But Fiona is also correct becuase sqrt of 20 can be simplified to sqrt.4 * sqrt.5; which equals 2*sqrt.5

3 0

3 years ago

Read 2 more answers