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ivanzaharov [21]
2 years ago
13

Please answer this math problem sceenshot below

Mathematics
2 answers:
Vladimir [108]2 years ago
4 0
They are both 60 on both answers
nataly862011 [7]2 years ago
3 0

Answer:

3 and 4 it is 60

is the answer

if you like my answer please like comment and mark me as brilliant

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What is an equation of the line with slope 3 that goes through point (-1/2, 5/2)?
kkurt [141]

The only equation that has 3 as the coefficient of x (a slope of 3) is ...

... d.) y = 3x+4

_____

Happily, it also goes through the given point.

... 5/2 = 3(-1/2) +4

... 5/2 = -3/2 + 8/2 . . . . true

4 0
3 years ago
-5(3-r)=30<br> Please help!
Andrej [43]
The answer to -5(3-r)=30
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2 years ago
What is the sum of<br> Σ4(0.5) -1,<br> n=1<br> O S=1.5<br> O S = 2<br> O S = 4.5<br> O S = 8
slamgirl [31]

Answer:

S=4.5

Step-by-step explanation:

dxxzzzzzzzzzzzzzz---

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3 years ago
Tim wants to build a rectangular fence around his yard. He has feet of fencing. If he wants the length to be twice the width, wh
Citrus2011 [14]

Answer:

how many feet of fencing does he have?

\

Step-by-step explanation:

8 0
3 years ago
You're standing on the ground 7777 meters away from the bottom of a tall tower. The tower itself is 346346 meters tall. What is
lys-0071 [83]

Answer:

88.7°

Step-by-step explanation:

First, visualize. Assuming that the tower is at a perfectly 90° angle to the ground, you have a right triangle. We will call this triangle ΔABC where A is where you are, B is the top of the tower, and C is the base of the tower. Now we know the following:

∠A = ?

∠B = ?

∠C =  90

a = 346346

b = 7777

c = ?

Note: Triangles are labeled with three pairs of letters: a, b and c and A, B and C. The lower case letters, a, b and c represent the sides, and the upper case letters are the angles that are directly opposite of those sides. (see attached reference)

c is easy, c is the hypotenuse, so you can use the following equation to find the hypotenuse:

a² + b² = c²

Rearranged:

c = ± \sqrt{a^{2} +b^{2} }

Substitute a and b:

c = ±\sqrt{346346^{2} +7777^{2} }

Comes out to ~346433.3 meters.

Now if we use the Law of Sines:

\frac{a}{sinA} = \frac{b}{sinB} = \frac{c}{sinC}

We can use c and a, since we're trying to find what angle A is, so the ratio is set up as:

\frac{346346}{sinA} = \frac{346433.3}{sinC}

Well we know that C = 90, and so sin(90) in degrees (as opposed to radians) is 1. So then the set of equations is now:

\frac{346346}{sinA} = \frac{346433.3}{1}

Cross Multiply to get rid of the fractions:

346346 = 346433.3 * sin(A)

Divide:

\frac{346346}{346433.3} = sin(A)

Using a calculator, if you take the arcsin of that fraction, you will get what angle A is supposed to be:

arcsin( \frac{346346}{346433.3} ) = ∠A = 88.7°

5 0
2 years ago
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