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Fittoniya [83]
2 years ago
10

6

Mathematics
1 answer:
Step2247 [10]2 years ago
3 0
Radius = 8

Diameter = 15.9

Area = 198.5
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1, 4, 9, 16, 25, ______, ______, ______
rosijanka [135]
The answer is 36 , 49 , & 64 .
8 0
2 years ago
Ben earns an annual income of $12,800 a year. The income tax he has to pay is 15%. What is the amount of income tax in dollars a
kirill115 [55]

Answer:

$

1

,

920

Explanation:

Find  

15

%

×

12800

15

100

×

12800

1

=

$

1

,

920

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
I know the answer just need the step-by step work
Anna71 [15]

Answer:

  x^2 +18x +80

= x^2 + 10x + 8x +80

= x(x+10) + 8(x+10)

= (x+10)(x+8)

Hope this help!

Good luck!

6 0
2 years ago
15% of Alina’s workout consisted of cardio exercise. 25% of Dane’s workout consisted of cardio exercise. Which statement must be
Arisa [49]


The correct answer is B. If Alina’s workout was 80 minutes, and Dane’s workout was 48 minutes, they spent the same amount of time on cardio exercise.

To figure this out, first find 15% of 80 and then 25% of 48.

To find 15% of 80, you can first find 10% of 80 which is 8(just move the decimal one place to the left). The remaining 5% will be half of 8 since 8 is 10%. Add both the numbers up and you will get 12. (8+4=12)

To find 25% of 48, you can divide 48 by 4. Since percent means 'out of 100', 25% is 25 of 100. 100 divided by 25 is equal to 4. So, 48 divided by 4 is equal to 12.

So, the final answer is B. They both equal to 12.

Hope it helps :)

6 0
3 years ago
∠A and ∠B are complementary angles.
iogann1982 [59]
Cos 52 = 0.6157

sin 42 = cos 48 = 2/3     (because 42 + 38 = 90 - complementary angles)

if tan 20,5 = 3/8 then  tan 69.5 wil =  1 / 3/8  = 8/3

3 0
3 years ago
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