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3 years ago

15

In which sentence is the underlined word an indefinite article? A. Our dog ate the bone quickly. B. One bird flew over us. C. I

need a pair of socks.

1 answer:

Yanka [14]3 years ago

4 0

It is c i believe hope this is right

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A portion of the graph of f(x) = −x2 − 10x − 21 is shown. Which of the following describes all solutions for f(x)? a partial par

Ket [755]

Answer:

the answer is A

Step-by-step explanation:

you pluy in each number for the portion of the function in the graphing calculator and get the answer

7 0

3 years ago

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(Can somebody find the sum of this) <br><br><br> (5+2i)+(8-3i)

7nadin3 [17]

Hey there!!

Okay so here are the steps....

(5 + 2i) + (8 - 3i) <---- when we have exponents we should worry about the "i" because it is equal to √-1 but here it isn't the case.
<u>

(13 - i)</u><u /> <----- This is the answer!

<u />I hope this helps! ^__^

7 0

3 years ago

If n lines are drawn in a plane, how many regions do they separate the plane into? induction

grandymaker [24]

Hello,

Let's assume i the number of lines,
u(i) the number of regions:

$u_0=1\\\\
u_1=2=1+1=1+u_0\\\\
u_2=4=2+u_1\\\\
u_3=7=3+u_2\\\\
u_4=11=4+u_3\\\\
u_5=16=5+u_4\\\\
...\\\\
\boxed{u_{n+1}=(n+1)+u_{n}}\\\\

u_{n+1}=(n+1)+n+(n-1)+...+1+u_0\\\\

\boxed{u_{n+1}= \dfrac{(n+1)*(n+2)}{2}+1 }$

6 0

3 years ago

Refer to the picture above

vodomira [7]

Answer:

3.14

Step-by-step explanation:

First find the circumference of the circle:

$2\pi r$ = Circumference.

$2 * \pi * 6$ = $12\pi$

Find the ratio of the angle in relation to the entire circle:

$30^o$ is what we have. So:

$\frac{30^o}{360^o} = \frac{1}{12}$

Use the ratio and multiply the circumference to find the length:

$12\pi * \frac{1}{12}$ = $\pi$

Round answer to the hundredth:

$\pi = 3.14$

4 0

2 years ago

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If /_\CAT ~= /_\LUV then /_\c ~=/_\L. True or False?

marshall27 [118]

Answer:

True

Step-by-step explanation:

They will eat u tho

5 0

3 years ago