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noname [10]
2 years ago
10

Knowing that sin(60)=0.866, what is cos(30)

Mathematics
1 answer:
tatuchka [14]2 years ago
6 0

Answer:

knowing that sin(60)=0.866, what is cos(30)

Step-by-step explanation:

Cos 30 = 8.66

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What’s the multiple of 9 that adds to 18
marshall27 [118]

Answer:

2

Step-by-step explanation:

2x9=18

8 0
2 years ago
Read 2 more answers
Jon has $5,000 to invest in a savings account that has interest compounded annually. If he want his money to double in eight yea
Nataly_w [17]
$5000 × 1.1%=$55

$55 × 12 mos. in a year= $660 yearly on this percent

calculate
$660 × 8 years from now =$5280

so the answer would be 1.1% I assume
6 0
3 years ago
In right triangle abc /_B is right angle and m/_c=30 if Ac=10 what is AB
Ivanshal [37]

Answer:

plz mark brainliest..

Step-by-step explanation:

AC is the hypotenuse = 10

AB is side opposite to <C

<C = 30°, <B = 90°

by 30°-60°-90° theorem

side opposite to 30° is equal to half of hypotenuse

therefore,

AB = 1/2 × AC

AB = 1/2 × 10

AB = 5

therefore number 5 is answer

hope it will help you

7 0
3 years ago
Find Y
djverab [1.8K]

Answer:

\sin(30)  =  \frac{y}{2 \sqrt{2} }  \\  \\  <  =  >  \frac{1}{2}  =  \frac{y}{2 \sqrt{2} }  \\  <  =  > y =  \frac{2 \sqrt{2} }{2}  \\  \\  <  =  > y =  \sqrt{2}

8 0
2 years ago
Read 2 more answers
Tamara says she used the GCF to factor the expression 21x + 56xy as 7(3x + 8xy). Is she correct? Explain.
coldgirl [10]

Answer:

Tamara incorrectly factored the whole expression.

Step-by-step explanation:

Note that

•21x=3·7·x;

•56xy=2·2·2·7·x·y.

Mark in bold all common factors, then GCF(21x,56xy)=7·x=7x.

Thus,

21x+56xy=7x(3+8y).

Hence, Tamara correctly found the GCF of numbers 21 and 56, but incorrectly factored the whole expression.

6 0
2 years ago
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