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4 years ago

What is the value of this expression? (−8)^3

Mathematics

1 answer:

REY [17]4 years ago

6 0

(-8)^3 is the same as multiplying -8 by itself 3 times:

-8 x -8 x -8:

-8 x -8 = 64

64 x -8 = -512

(-8)^3 = -512

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Help asap pls -=-=-=-=--------------

bixtya [17]

Answer:

-1/3

Step-by-step explanation:

at x=0 y= 5

at x=3 y= 4

y=ax+b

b= 5

4=3x+5

3x= -1

x= -1/3

$y = - \frac{x}{3} + 5$

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3 years ago

1-99 -- Calculate all the missing angle measures in the diagrams below

ira [324]

Ok give me a second.

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3 years ago

What is the exact time t, in years, needed for the balance of an account that earns 5% annual 8. Interest compounded continuousl

Brums [2.3K]

Answer:

It takes 22.52 years for the balance to triple in value.

Step-by-step explanation:

Continuous compounding:

The amount of money earned using continuous compounding is given by the following equation:

$A(t) = A(0)(1+r)^t$

In which A(0) is the initial amount of money and r is the interest rate, as a decimal.

Interest rate of 5%.

This means that $r = 0.05$ , and thus:

$A(t) = A(0)(1+r)^t$

$A(t) = A(0)(1+0.05)^t$

$A(t) = A(0)(1.05)^t$

Time for the balance to triple?

This is t for which $A(t) = 3A(0)$ . So

$A(t) = A(0)(1.05)^t$

$3A(0) = A(0)(1.05)^t$

$(1.05)^t = 3$

$\log{(1.05)^t} = \log{3}$

$t\log{1.05} = \log{3}$

$t = \frac{\log{3}}{\log{1.05}}$

$t = 22.52$

It takes 22.52 years for the balance to triple in value.

3 0

3 years ago

A survey of 50 people found that 14 people like building a snowman. If 600 people had responded, how many would have been expect

Nimfa-mama [501]

Answer:

168, a little of both

Step-by-step explanation:

Make 14 out of 50, 14/50 simplified its 7/25, multiply it by 600 and you get 168 its a little of both because half the info we were given its experimental since it is not theorized, what we're being given (the question) and what we gave is theorized since we didn't actually perform an experiment to get a real answer

4 0

3 years ago

Read 2 more answers

I need help with? this question. what is 7(-7)+149-56/2=?

Vlad [161]

Answer:

the answer is 22 hope this helps

Step-by-step explanation:

7(-7)= -49

-49+149=100

100-56=44

44/2=22