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Nonamiya [84]
3 years ago
10

Help please! i need get answers to 3 and 4 :)

Mathematics
1 answer:
amm18123 years ago
7 0

Answer:

2/9 and 10% those are the answers

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Find a. Write your answer in simplest radical form.
NeTakaya

Answer:

\sin(60)  =  \frac{5 \sqrt{3} }{a}  \\  \\  \frac{ \sqrt{3} }{2}  =  \frac{5 \sqrt{3} }{a}  \\  \\ a =  \frac{2 \times 5 \sqrt{3} }{ \sqrt{3} }  \\  \\ a = 10

3 0
2 years ago
The Chang family is on their way home from a cross-country road trip. During the trip, the function D (t) = 3260 - 55t can be us
Lilit [14]

Answer:

See below.

Step-by-step explanation:

D(t) = 3260 - 55t

The function that shows their distance from home as a function of time shows that they started 3260 miles from home and are driving at 55 miles per hour.

part a:

D(12) = 3260  55(12)

D(12) = 3260 - 660

D(12) = 2600

Interpretation: After 12 hours of driving home, they are 2600 miles from home.

part b:

D(t) = 2490

3260 - 55t = 2490

-55t = -770

t = 14

Interpretation: When they are 2490 miles from home, they have driven for 14 hours.

5 0
2 years ago
A state park has two pools. The olympic size pool holds 8.12 x 10^5 gallons of water and the smaller pool holds 5.27 x 10^5 gall
Ainat [17]

B) 1.339 x 10^6 gallons. When you add 812,000 to 527,000 you get 1,339,000, and to write that in scientific notation you need to make the number less than 10 and more than 1, which is 1.339 and to get the 1,339,000 you need to multiply 1.339 by 10^6.

4 0
3 years ago
The angles shown are complementary angles. The measure of angle 1 is ​(14x-21​) degrees and the measure of angle 2 is ​(​4x+75)
Anni [7]

Answer:

A complementary angle is an angle that adds up to 90 degrees. supplementary angles add up to 180 degrees. So a supplementary angle lies on a single, straight line, and a complementary angle is a right angle.

Step-by-step explanation:

7 0
3 years ago
Harold has been hired as a salesman. He is paid a flat rate of $375 each week and earns an additional $14.25 commission for each
Andru [333]
The answer is
c. \: y = 14.25h + 375
5 0
3 years ago
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