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BlackZzzverrR [31]

3 years ago

8

I suck at this type of math because the teacher did not explain good enough and I’m stuck.

2 answers:

lisabon 2012 [21]3 years ago

6 0

Answer:

21

Step-by-step explanation:

2^2+b^2=5^2

4+b^2=25

b^2=21

<3

Red

kondor19780726 [428]3 years ago

6 0

Answer:

21

Step-by-step explanation:

2^2+b^2=5^2

4+b^2=25

b^2=21

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kenny6666 [7]

Answer:

i dont know if this is right but 0.125 for every one cup i got this by dividing the fractions

3 0

2 years ago

What is -2√20-√125 in simplest radical form

solong [7]

√20 the prime factors are 2, 2, 5 so
-2 * √4 *√5
-2*2*√5
-4√5 is the first part ,
now for √125, use prime factorization ,
all prime factors that make up 125 is
5, 5, 5 so √125 can be separated to √25√5 and √25 = 5 so the second part is 5√5.
now -4√5 - 5√5 = -9√5.
therefore answer is -9√5

8 0

2 years ago

Write 10 x 10 x 10 x 10 x 10 with an exponent.<br> 10 x 10 x 10 x 10 x 10 =

lakkis [162]

Answer:

$10^5$

Step-by-step explanation:

Exponents are basically just saying how many times the number is multiplied by itself.

In the expression $10\cdot10\cdot10\cdot10\cdot10$ , we can see that 10 is being multiplied by itself 5 times.

So the exponent becomes 5, and the base is 10.

$10^5$ .

Hope this helped!

7 0

3 years ago

The length of a rectangle is 2 units shorter than one-fifth of the width, x.

sergey [27]

Answer:

C. $P=\frac{12x}{5} + 4$

Step-by-step explanation:

Width = x

Length = one fifth of width minus 2

Length = $\frac{1}{5}x-2$

Perimeter is given by the formula

$P=2(l+b)$

$P=2(\frac{1}{5}x-2+x)$

$P=2(\frac{x}{5}-2+x)$

$P=2\times \frac{x-2 \times 5+5 \times x}{5}$

$P=2\times \frac{x-10+5x}{5}$

$P=2\times \frac{6x}{5} - 2\times \frac{-10}{5}$

$P=2\times \frac{6x}{5} + 2\times \frac{10}{5}$

$P=\frac{12x}{5} + 4$

5 0

3 years ago

ou need 1 1/4 cups of sugar to make 20 cookies. How many cups of sugar will you need to make 16 cookies? cups of sugar

frutty [35]

Answer:

To make 16 cookies you will need 1 cup of sugar.

Step-by-step explanation:

Given:

Sugar needed to make 20 cookies = 1 1/4 cups

To Find:

Sugar needed to make 16 cookies = ?

Solution:

For making 20 cookies 1 1/4 cups of sugar is used

So to make 1 cookie we need

=> $\frac{1\frac{1}{4}}{20}$

=> $\frac{\frac{5}{4}}{20}$

=> $\frac{5}{4} \times \frac{1}{20}$

=> $\frac{5}{80}$

=> $\frac{1}{16}$ cups of sugar

Now to make 16 cookies we need,

=> $16 \times \text{sugar needed to make one cookie}$

=> $16 \times\frac{1}{16}$

=> $\frac{16}{16}$

=> 1

7 0

3 years ago