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3 years ago

7

Help plz with a cherry on top!

1 answer:

Harrizon [31]3 years ago

3 0

A triangle's angle measures add up to 180°.
67 + 90 = 157
180 - 157 = 23
The last angle measure is 23°.

The longer the side length, the larger the angle opposite it is. And vice versa. The shorter the side length, the smaller the angle opposite it is.

Side Length: ∠ Measure Opposite Side:
5 in 23°
12 in 67°
13 in 90°

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PLeAsE hElP mE wItH mY MaTh PlEaSe LiNk AttAcHeD.

lawyer [7]

The answer is going to be A) 9:14

7 0

4 years ago

Evaluate using the finite geometric sum formula

Sever21 [200]

Answer:

$S_9=-18.703$ .

Step-by-step explanation:

The given series is,

$\sum_{i=1}^9(-\frac{1}{2})^{i-1}$

When we substitute $i=1$ , we get the first term, which is $a_1=-28(-\frac{1}{2})^{1-1}$

This implies that,

$a_1=-28(-\frac{1}{2})^{0}$

$a_1=-28(1)=-28$ .

The common ratio is

$r=-\frac{1}{2}$

The finite geometric sum is given by the formula,

$S_n=\frac{a_1(r^n-1)}{r-1} , -1\:$ .

Since there are 9 terms, we find the sum of the first nine terms by putting $n=9$ in to the formula to get,

$S_9=\frac{-28((-\frac{1}{2})^9-1)}{-\frac{1}{2}-1}$ .

$S_9=\frac{-28((-\frac{1}{2})^9-1)}{-\frac{1}{2}-1}$ .

$S_9=\frac{-28((-\frac{1}{512})-1)}{-\frac{3}{2}}$ .

$S_9=\frac{-28(-\frac{513}{512})}{-\frac{3}{2}}$ .

$S_9=-28(\frac{171}{256})$ .

$S_9=-\frac{1197}{64}$ .

$S_9=-18.703$ .

The correct answer is B

4 0

3 years ago

Read 2 more answers

Find the measure for ∠LQR.

Pepsi [2]

-10b--3b= 7b and then 113-71=42 and 42 divide it by 7b which is gonna be b=6

7 0

3 years ago

Does someone know what the answer is? Help, please!

bazaltina [42]

Answer:

if I'm not wrong it should be A

3 0

3 years ago

If Naomi were to paint her living room alone, it would take 5 hours. Her sister Jackie could do the job in 8 hours. How many hou

Zielflug [23.3K]

Answer:

40/13

The decimal form is going to be 3.076

7 0

3 years ago