2 years ago

Find the area of the following ellipse Use = 3.14 and round to nearest tenth. a = 7 in.; b = 9 in.

Mathematics

1 answer:

TEA [102]2 years ago

8 0

A of ellipse = pi•a•b= 3.14•7•9= 197.82
Round to the nearest tenth
197.82~ 197.2 in^2

You might be interested in

0.004 of all math majors at a certain university double major in music. Express this decimal as a percent.

RUDIKE [14]

I think the answer is 4%

3 0

2 years ago

What expression is equivalent to 10(2p+q)

boyakko [2]

There aren't any answer options so I will just simplify the expression:
10(2p+q)
20p+10q

7 0

2 years ago

Simplify (square root 2)( square root of 2^3)

steposvetlana [31]

Answer:

$\large\boxed{(\sqrt2)(\sqrt{2^3})=4}$

Step-by-step explanation:

$(\sqrt2)(\sqrt{2^3})\qquad\text{use}\ \sqrt{ab}=\sqrt{a}\cdot\sqrt{b}\\\\=\sqrt{2\cdot2^3}\qquad\text{use}\ a^n\cdot a^m=a^{n+m}\\\\=\sqrt{2^{1+3}}=\sqrt{2^4}\\\\(1)=\sqrt{2^{2\cdot2}}\qquad\text{use}\ (a^n)^m=a^{nm}\\\\=\sqrt{(2^2)^2}\qquad\text{use}\ \sqrt{a^2}=a\ \text{for}\ a\geq0\\\\=2^2=4\\\\(2)=\sqrt{2\cdot2\cdot2\cdot2}=\sqrt{16}=6\ \text{because}\ 4^2=16$

8 0

2 years ago

For every 1/2 mile that Ria runs, she walks 3/4 miles. What unit rate gives the number of miles Ria runs for every mile she walk

ziro4ka [17]

Answer: A do

Step-by-step explanation: Because for every two mile she run she walk three mile

5 0

2 years ago

Read 2 more answers

A line passes through the point (8,9) and has a slope of 3/4

stepan [7]

Answer: $y=\frac{3}{4}x+3$

Step-by-step explanation:

Slope-intercept form is y=mx+b, where m is the slope and b is the y-intercept. Since we are given slope, we can plug that into m, and use the given point to find the y-intercept.

$y=\frac{3}{4}x+b$ [plug in (8,9)]

$9=\frac{3}{4}(8)+b$ [multiply]

$9=6+b$ [subtract both sides by 6]

$b=3$

Now that we have b, we can complete the equation to $y=\frac{3}{4}x+3$ .

7 0

2 years ago