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3 years ago

Please help and thank you.

Mathematics

1 answer:

Paladinen [302]3 years ago

3 0

Because the ratio of acceptance is 9:100, we simply multiply both by 2:

9:100 = 18:100

The chances of her admitting the 18th student is Option B., 100%

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X=13+4x=22 please help

Andreyy89

X=13+4x. 13+4x=22
0=13+3x. 4x=9
3x=-13. x=9/4
x=13/3

4 0

3 years ago

A unit of measure used in surveying is the link; 1 link is about 8 inches. about how many links are there in 9 feet.

lord [1]

Known:

1 link = 8 inches
1 inch = 0.083 feet
108 inches = 9 feet

To find how many links:

108/8= 13.5 links

3 0

3 years ago

17*17 i forget how multiplication works (oops oof)

dalvyx [7]

Answer:289

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Plz help me asap will give brainliest and 100 points.

maw [93]

Answer:

167.47 cubic metres

Step-by-step explanation:

Volume of a cone is given by $\frac {\pi r^{2}h}{3}$ where r is radius and h is the height of the cone. Assuming a radius of 4m and height of 10 m then the volume, using 3.14 for $\pi$ will be

V= $\frac {3.14\times 4^{2}\times 10}{3}\approx 167.47 m^{3}$

5 0

3 years ago

<img src="https://tex.z-dn.net/?f=%20a%20%3D%20%5Cfrac%7B%20%7B%28x%20%2B%202%29%7D%5E%7B2%7D%20-%20%7B%282x%20-%203%29%7D%5E%7B

xxMikexx [17]

Answer:

$a=3x-1$

Step-by-step explanation:

Given:

$a=\dfrac{(x+2)^2-(2x-3)^2}{-x+5}$

Use formulas

$(u+v)^2=u^2+2uv+v^2\\ \\(u-v)^2=u^2-2uv+v^2$

Therefore,

$(x+2)^2=x^2+2\cdot x\cdot 2+2^2=x^2+4x+4\\ \\(2x-3)^2=(2x)^2-2\cdot (2x)\cdot 3+3^2=4x^2-12x+9$

Now

$(x+2)^2-(2x-3)^2\\ \\=x^2+4x+4-(4x^2-12x+9)\\ \\=x^2+4x+4-4x^2+12x-9\\ \\=-3x^2+16x-5$

Factor it:

$-3x^2+16x-5\\ \\=-3x^2+15x+x-5\\ \\=-3x(x-5)+(x-5)\\ \\=(x-5)(-3x+1)$

Hence, the fraction can be simplified as follows:

$a=\dfrac{(x-5)(-3x+1)}{-x+5}\\ \\a=\dfrac{(x-5)(-3x+1)}{-(x-5)}\\ \\a=\dfrac{-3x+1}{-1}\\ \\a=3x-1$

8 0

3 years ago