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3 years ago

Solve the equation 64x^2 − 144 = −23 by using square roots. HELP PLEASE

Mathematics

1 answer:

icang [17]3 years ago

6 0

Thats easy you have to add the -23 to 144 then go from there.

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By what percent will a fraction decrease if its numerator is increased by 20% and its denominator is increased by 50%?

Angelina_Jolie [31]

Answer:

20%

Step-by-step explanation:

With those changes, the fraction is multiplied by ...

$\dfrac{1+.20}{1+.50}=1-\dfrac{.30}{1.50}=1-0.20$

That is, the value of the fraction is decreased by 20%.

5 0

4 years ago

Read 2 more answers

4a + 6b= 10 2a - 4b =12 what does 12a=

mixer [17]

4a + 6b = 10
2a - 4b = 12...multiply by -2
----------------
4a + 6b = 10
-4a + 8b = - 24 (result of multiplying by -2)
------------------add
14b = - 14
b = -14/14
b = -1

2a - 4b = 12
2a - 4(-1) = 12
2a + 4 = 12
2a = 12 - 4
2a = 8
a = 8/2
a = 4

so 12a = 12(4) = 48 <==

3 0

4 years ago

Julien's parents want $64,000 at the end of 3 years. They put their money in an account that yields 10% per year compounded mont

Leto [7]

Answer: $\$47,471$

Step-by-step explanation:

Given

Julien's parents want $64,000 at the end of 3 years

The rate of interest is 10% annually

Suppose they invested P amount initially

So, compound interest, compounded monthly is

$\Rightarrow A=P\left( 1+\frac{r}{n}\right)^{nt}\quad [\text{n=Numner of compounding periods}]\\\\\text{Insert the values}\\\Rightarrow 64,000=P\left( 1+\frac{0.10}{12}\right)^{12\times 3}\\\\\Rightarrow 64,000=P\left( 1+\frac{10}{12}\right)^{36}\\\\\Rightarrow P=\dfrac{64000}{1.3481}\\\\\Rightarrow P=\$\ 47,471.37\approx \$ 47,471$

7 0

3 years ago

To make a cake, you need 2 parts flour, 2 parts sugar and 1 part eggs.

Allisa [31]

Answer:

2:1???

Step-by-step explanation:

7 0

2 years ago

What is 8x8x3to the second power

sleet_krkn [62]

Answer: If you're talking about the answer to 8*8*3 (192) to the second power, the answer is 36,864. If you're talking about 8*8*3^2 (with the three being the number with the raised power), the answer is 576

Step-by-step explanation:

8x8x3=192

192^2=192x192= 36,864

8x8x3^2=576

6 0

3 years ago

Read 2 more answers