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enot [183]
3 years ago
11

If the measures of complementary angles are (2x+3) degrees and x degree

Mathematics
1 answer:
Eddi Din [679]3 years ago
6 0

Answer:

43.5

Step-by-step explanation:

43.5*2=87+3=90

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Y=−2x+9 write in standard form
oksian1 [2.3K]

Answer:

2 x − y = − 9

Step-by-step explanation:

I am not 100% sure but I think this is right.

5 0
3 years ago
Read 2 more answers
There are 3 blue marbles, 4 red marbles, and 5 yellow marbles in a bag. Julie pulls one marble out at a time and does not replac
Alekssandra [29.7K]

Answer:

1/22

Step-by-step explanation:

P (blue, blue) = <u> 3 </u> x <u> 2 </u>  = <u>  6  </u> or 1/22 simplified

                         12     11      132

7 0
3 years ago
Can someone help me on these 4 problems. I don't know how to do them
Harman [31]
Question 84:
The given triangle is an isosceles triangle.
We have measure angle 2 = measure angle 3
We are given that angle 1 = 70°
We know that the sum of the interior angles of the triangle is 180.
This means that:
180 = angle 1 + angle 2 + angle 3
180 = 70 + angle 2 + angle 3
angle 2 + angle 3 = 110
Since both angles are equal, therefore:
measure angle 2 = 110/2 = 55°
We are given that:
measure angle 2 = x + 64
This means that:
x + 64 = 55
x = 55 - 64
x = -9

Question 85:
The given triangle is an isosceles triangle.
We have the two base angles are equal.
Since one of them is 30°, this means that the other is also 30°
We know that the sum of the interior angles of the triangle is 180.
This means that:
180 = angle 1 + angle 2 + angle 3
180 = 30 + angle 2 + 30
angle 2 = 120
We are given that:
measure angle 2 = 14x - 6
This means that:
14x - 6 = 120
14x = 126
x = 126/14
x = 9

Question 86:
The given triangle is an isosceles triangle.
We have the two base angles are equal.
Since one of the base angles is 40°
This means that the other one is also 40°
Therefore:
measure angle 2 = 40°
We are given that:
measure angle 2 = 47 + x
This means that:
47 + x = 40
x = 40 - 47
x = -7

Question 87:
The given triangle is an equilateral triangle. This means that all three interior angles are equal and each is measuring 60°.
Therefore:
measure angle 2 = 60°
We are given that:
measure angle 2 = x + 71
This means that:
x + 71 = 60
x = 60 - 71
x = -11

Hope this helps :)
8 0
4 years ago
A triangular prism. The rectangle has a base of 9 feet and height of 7 feet. The 2 triangles have a base of 7 feet and height of
kodGreya [7K]

Answer:

On the net, the side length a is 9 feet.

On the net, the side length b is 7 feet.

The area of one of the triangular faces is 21 ft2.

The total amount of fabric needed to make the tent is 231 ft2.

9, 7, 21, 231

Step-by-step explanation:

Hm, I am pretty dumb to explain but I just guessed and got them right.

Don't tell me I answered the wrong question T^T

6 0
4 years ago
g For the curve parameterized by x(t) = 3 sin t, y(t) = 5 cost, for −π/4 ≤ t ≤ π/2: (a) Sketch the curve and the direction trace
tamaranim1 [39]

Answer:

a) See the file below, b) s = \int\limits^{0.5\pi}_{-0.25\pi} {[\left( 3\cdot \cos t\right)^{2}+\left(-5\cdot \sin t \right)^{2}]} \, dx, c) s \approx 9.715

Step-by-step explanation:

a) Points moves clockwise as t increases. See the curve in the file attached below. The parametric equations describe an ellipse.

b) The arc length formula is:

s = \int\limits^{0.5\pi}_{-0.25\pi} {[\left( 3\cdot \cos t\right)^{2}+\left(-5\cdot \sin t \right)^{2}]} \, dx

c) The perimeter of that arc is approximately:

s \approx (\frac{1}{4} + \frac{1}{8})\cdot 2 \pi\cdot \sqrt{\frac{3^{2}+5^{2}}{2} }

s \approx 9.715

5 0
4 years ago
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