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mina [271]
3 years ago
13

Can someone help me please

Mathematics
2 answers:
Sveta_85 [38]3 years ago
7 0

Answer:

66.42degrees

Step-by-step explanation:

\cos {}^{ - 1} ( \frac{6}{15} )  = 66.42degrees

Volgvan3 years ago
4 0
The answer would be 66.42 degrees
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koban [17]

Answer:1) c. 5,9,13,17,21

2)  a. a1=8, an=an-1 -2

Step-by-step explanation: 1) an=4n+1

    ⇒ a1=4×1+1=5

         a2=4×2+1=9

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          a4=4×4+1=17

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2) clearly a1=8 and then the terms of series are decreasing by 2

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4 0
3 years ago
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In parallelogram LMNO, what is the measure of angle N?<br><br> 50°<br> 70°<br> 110°<br> 130°
belka [17]

we know that

In a parallelogram opposite angles are congruent and consecutive angles are supplementary.

So

m∠O=m∠M

m∠L=m∠N

m∠O+m∠L=180

Step 1

Find the value of x

(x+20)+(2x+10)=180\\ 3x+30=180\\ 3x=180-30\\ x=\frac{150}{3} \\ \\ x=50\ degrees

Step 2

Find the value of angle L

m∠L=(2x+10)

m∠L=(2*50+10)

m∠L=110\ degrees

Remember that

m∠N=m∠L

m∠N=110\ degrees

therefore

the answer is

the measure of the angle N is equal to 110\ degrees





4 0
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Total surface area of the rectangular pyramid = 4(17.5) + 25

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3 years ago
Mary went to the local market to purchase some fruit. Each box of
musickatia [10]

Answer:

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7 BOXES OF PEARS IS $35

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