3 years ago

Bananas are 5 for 79 cents . Isaiah bought 7 bananas. How many did Isaiah spend?

Mathematics

1 answer:

Margarita [4]3 years ago

7 0

C it’s always c. When in doubt always chose c

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Evaluate the following expression for m= 8 and p= -12 M^2-|p| 76 52 -52 -76

masha68 [24]

Answer:

Step-by-step explanation:

Put the numbers in the expression and do the arithmetic.

(-8)² - |-12| = 64 -12 = 52

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3 years ago

An urn contains eight blue balls and seven yellow balls. if six balls are selected randomly without being replaced, what is the

Vlad1618 [11]

to be sure that 2 of them will be blue i have to select 7+2=9 balls
7+8=15 balls in the urn
P=9/15

to be sure that 4 of them will be yellow i have to select 8+4=12 balls
P=12/15

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3 years ago

The population of a town has grown at an annual rate of 2.7%. How long does it take for it’s population of 18,450 people to doub

charle [14.2K]

It would take 26 years.

The equation will be in the form y = a(1+r)ˣ, where a is the initial population, r is the growth rate as a decimal number, and x is the amount of time. Using our information we have

y = 18450(1+0.027)ˣ = 18450(1.027)ˣ

We want the population to be doubled; 18450*2 = 36900:
36900 = 18450(1.027)ˣ

Divide both sides by 18450:
36900/18450 = 18450(1.027)ˣ/18450
2 = 1.027ˣ

Using logarithms, we have
$\log_{1.027}2=x
\\
\\x=26.017$

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3 years ago

What’s the radius of a sphere with a surface area of 4pie square feet

In-s [12.5K]

Set up an equation

$4\pi r^2$ = $4\pi$