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mario62 [17]
3 years ago
9

Find the value of x y and z​

Mathematics
1 answer:
poizon [28]3 years ago
5 0
I think you can plus like 180 plus that or 180 minus butttt it’s bc the angle looks like a “C” so you plus
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The wheels on Reggie’s bike each have a 20-in. diameter. His sister’s mountain bike has wheels that each have a 26-in. diameter.
ExtremeBDS [4]
The answwer is 30 inches
6 0
3 years ago
The ratio of boys to girls in a school is 5:4. if there are 180 students, how many girls are there?
vladimir2022 [97]
Salutations!

<span>The ratio of boys to girls in a school is 5:4. if there are 180 students, how many girls are there?

Let the number of girls and boys be 'x'.

</span>5x + 4x = 180
<span>
Add 5 and 4

</span>9x = 180
<span>
</span>x = 20
<span>
Now, multiply the ratios by 20.

Boys = 20 </span>× 5 = 100

Girls = 20 × 4 = 80.

There were 80 girls.

Hope I helped (:

Have a great day!
4 0
3 years ago
Cameron created a composite figure by stacking three cubes the cubes measure 2 inches on each side  what is the volume of the c
8090 [49]

Answer:

24 cubic inches.

Step-by-step explanation:

The volume of one cube = s * s * s or s^3

s = 2 inches

V = s^3

V = 2 * 2 * 2 or 2^3

V = 8 cubic inches.

The volume of 3 of them is 8*3 = 24 cubic inches.

8 0
3 years ago
How do you rationalize the numerator in this problem?
maw [93]

To solve this problem, you have to know these two special factorizations:

x^3-y^3=(x-y)(x^2+xy+y^2)\\ x^3+y^3=(x+y)(x^2-xy+y^2)

Knowing these tells us that if we want to rationalize the numerator. we want to use the top equation to our advantage. Let:

\sqrt[3]{x+h}=x\\ \sqrt[3]{x}=y

That tells us that we have:

\frac{x-y}{h}

So, since we have one part of the special factorization, we need to multiply the top and the bottom by the other part, so:

\frac{x-y}{h}*\frac{x^2+xy+y^2}{x^2+xy+y^2}=\frac{x^3-y^3}{h*(x^2+xy+y^2)}

So, we have:

\frac{x+h-h}{h(\sqrt[3]{(x+h)^2}+\sqrt[3]{(x+h)(x)}+\sqrt[3]{x^2})}=\\ \frac{x}{\sqrt[3]{(x+h)^2}+\sqrt[3]{(x+h)(x)}+\sqrt[3]{x^2}}

That is our rational expression with a rationalized numerator.

Also, you could just mutiply by:

\frac{1}{\sqrt[3]{x_h}-\sqrt[3]{x}} \text{ to get}\\ \frac{1}{h\sqrt[3]{x+h}-h\sqrt[3]{h}}

Either way, our expression is rationalized.

7 0
3 years ago
An equation is shown below:
Drupady [299]
27x - 144 + 15 = 6x - 24
27x - 129 = 6x - 24
       +129         +129
      ---------      --------
           0            105
27x = 6x + 105
-6x    -6x
-----  ------
 21x    0

21x = 105

21x/21 = 105/21

x = 5

Remove brackets
Gather like terms
Get rid of the lone number
Transfer
Divide

Hope this helps :)
4 0
3 years ago
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