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andrezito [222]

4 years ago

6

christopher divided 678 by a mystery number. in his quotient, 7 shifted 3 places to the left. express the mystery number in expo

nential form.

1 answer:

jenyasd209 [6]4 years ago

3 0

Im asking about the question

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garri49 [273]

Answer:

11-C

Step-by-step explanation:

Cause 11-C

equels the same amount as the one on the top of 11-C

6 0

3 years ago

Write the expression as the sine or cosine of an angle sin(pi/7) cos(x) + cos(pi/7) sin(x)

Natasha_Volkova [10]

Answer:

$\sin(\frac{\pi}{7}+x)$

Step-by-step explanation:

We are going to use the identity

$\sin(a+b)=\sin(a)\cos(b)+\cos(a)\sin(b)$

because this identities right hand side matches your expression where

$a=\frac{\pi}{7}$ and $b=x$ .

So we have that $\sin(\frac{\pi}{7})\cos(x)+\cos(\frac{\pi}{7})\sin(x)$ is equal to $\sin(\frac{\pi}{7}+x)$ .

5 0

4 years ago

Please help me have to turn it in 30 minutes.

Anestetic [448]

24+15+11=50, the total number of times the markers were chosen.

Since 11 of these 50 tries resulted in a red and blue marker, the probability is 11/50. This is equal to 0.22 or 22%.

4 0

3 years ago

an electrician can wire on average 4.5 houses in a week.how many months will it take her to wire 55 houses if she wires the same

Roman55 [17]

If you know how to divide by decimal you have to divide 55 ÷ 4.5 and you would get 12 but if you don't know keep multipling a number times 4.5 but overall if you don't want to do all the work the answer is going to be (55×4.5=12 or 4.5×12=55— 12 houses)

6 0

3 years ago

Jane is 14 years older than mary. in five years jane will be one less than twice mary's age. what is the sum of jane and mary's

Elenna [48]

Answer =44. Hope this answer is helpful and correct.

4 0

3 years ago