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3 years ago

Someone give me this answer

Mathematics

2 answers:

Ilya [14]3 years ago

7 0

Answer:

We need the expression

Step-by-step explanation:

Then I can help

yaroslaw [1]3 years ago

4 0

I dont see any steps.

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0.9 (13) - 1.7 (3) =

marissa [1.9K]

Answer:

6.6

Step-by-step explanation:

8 0

2 years ago

Question part points submissions used this exercise involves the formula for the area of a circular sector. find the area of a s

kolezko [41]

The formula for the area of a sector in radians is $A= \frac{1}{2}r^2 \theta$ , where theta is the angle in radians. For us, the formula looks like this: $A= \frac{1}{2}(9)^2* \frac{3 \pi }{5}$ . Doing all the multiplication on that gives us $A= \frac{243 \pi }{10}$ . Multiplying in pi and rounding to the nearest tenth gives us an area of 76.3 meters squared. You can use the formula for the area of a sector with the angle in degrees as well. Just replace the 360 degrees with 2pi and it works the exact same way.

6 0

2 years ago

If (x − 2) ∶ 5 = 7 ∶ 9, then find the value of x.

WARRIOR [948]

Answer:

x=53/9

Step-by-step explanation:

(x-2):5=7:9

9x-18=35

9x=35+18

9x=53

x=53/9

4 0

2 years ago

115. Sami opens an account and deposits $100 into it at the end of each month. The account earns 2% per year compounded monthly.

givi [52]

Step-by-step explanation:

Geometric series.

Month 3.

100(1+\frac{0.02}{12})^2 + 100(1+\frac{0.02}{12})+100

Month 4.

100( 1 + \frac{0.02}{12})^3 + 100( 1 + \frac{0.02}{12})^2+100(1+\frac{0.02}{12})+100

Month 5.

100(1 + \frac{0.02}{12})^4 + 100(1 + \frac{0.02}{12})^3 + 100(1 + \frac{0.02}{12})^2 +100( 1 + \frac{0.02}{12}) + 100

4 0

3 years ago

Solve for a a^2+17=42?

grandymaker [24]

We are given the following equation:

$a^2+17=42$

Subtract both sides by 17

$a^2=25$

Take the positive/negative square root of both sides

$a=\pm5$

This should be your answer. Let me know if you have any questions, thanks!

6 0

2 years ago