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lora16 [44]
2 years ago
7

Angela practices piano for 5 hours on Sundays amd for 3 hours on all other days of the week. How many hours doea Angela practice

in a year
Mathematics
1 answer:
Kitty [74]2 years ago
7 0

Answer:8 x 365=2920

Step-by-step explanation:

First, you add 5 + 3 which equals 8. Then there is 365 days in a year so you would multiply 8 times 365 which equals 2920.

Pretty sure this is right, hope it helps.

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What is the volume of the triangular prism below? 12 ft 7 ft 16 ft 5 ft​
Nina [5.8K]
Try 194.68 as the volume
5 0
3 years ago
Help me please I'm struggling ​
Umnica [9.8K]

Answer:

Step-by-step explanation:

1.

-4\leq \frac{x+5}{3} \leq 7\\multiply~each~inequality~by~3\\-12\leq x+5\leq 21\\subtract~5~from~each~inequality\\-17 \leq x\leq 16

2.

cosθ+sinθ tan θ

=cosθ+sin θ×(sinθ)/(cosθ)

=\frac{cos^2 \theta+sin ^2 \theta}{cos \theta} \\=\frac{1}{cos \theta} \\=sec \theta

3.

x²+(y-6)²=35

x²+y²-12y+36=35

x²+y²-12y+1=0

put x=r cosθ

y=r sin θ

square and add

x²+y²=r²cos²θ +r² sin²θ=r² (cos² θ+sin² θ)=r²

r²-12rsinθ+1=0

6 0
2 years ago
An item is regularly priced at 25. It is on sale for 80% off the regular price. What is the sale price?
Burka [1]

<u>answer</u>:

sale price: $5

<u>explanation</u>:

total price is always 100%

sale price is 80% off,

sale price: 100% - 80% = 20%

<u>solve</u>:

→ 20% * $25

→ $5

7 0
2 years ago
Read 2 more answers
Simplify: m^2n^3 aanm^2a^2n^4
dolphi86 [110]

9514 1404 393

Answer:

  a^4·m^4·n^8

Step-by-step explanation:

The applicable rule of exponents is ...

  (a^b)(a^c) = a^(b+c)

__

m^2n^3 aanm^2a^2n^4

= a^(1+1+2)·m^(2+2)·n^(3+1+4)

= a^4·m^4·n^8

3 0
3 years ago
1. Dolores is on a bridge that is 42 feet above a lake. What is the distance from Dolores to the boat? G​
mrs_skeptik [129]

Answer:

See answer below

Step-by-step explanation:

You are missing data such as the angle of the boat next to Dolores. I found an exercise similar to this, and I'm going to show it here and use the missing data to show you how to do it:

<u>Dolores is on a bridge that is 45 feet above a lake. She sees a boat at a 30 degree angle of depression. What is Dolores' approximate horizontal distance from the boat?</u>

<u></u>

According to that, I will use the angle of 30° to do this, but the distance of 42 feet.

Now, we can see this as a triangle. Dolores is on a bridge 42 feet above a lake, this 42 feet distance should be one side of the triangle (The vertical forming the 90° angle), and the boat that is on the lake, is seen with an angle of 30°. So the distance of the boat, to the spot where dolores is, under the bridge would be the horizontal side.

With this, we have the opposite side (a) and the adyacent side (b) of the triangle, and we have the angle, therefore:

tanα = a/b

Replacing we have:

tan30° = 42/b

b = 42 / tan30°

b = 72.75 feet

Hope this helps

4 0
3 years ago
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