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3 years ago

If a triangle has angles 45 and 45 degrees, what is the measure of the third angle?

Mathematics

2 answers:

andrey2020 [161]3 years ago

4 0

Answer:

90 or right angle

Step-by-step explanation:

loris [4]3 years ago

3 0

Answer:

Step-by-step explanation:

A triangle has to have 180 degrees

so 180 - 90 = 90

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)) What is the greatest common factor of 52 and 2?<br> Submit

slavikrds [6]

Answer:

Step-by-step explanation:

$52 = 1 \times 2 \times 2 \times 13 \\ 2 = 1 \times 2 \\ common \: factors = 1 \: and \: 2 \\ gcf = 1 \times 2 = 2$

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3 years ago

FInd the sum of the first 20 terms of the series 3+5+7+....?

melamori03 [73]

Answer:

Explanation:

I added everything together.

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2 years ago

Carlos is filling a spherical balloon with water. if he increases the volume of the balloon from 4,188.79 cubic centimeters to 1

Harrizon [31]

We know that the volume of a sphere of radius r is given by

$V=\frac{4}{3}\pi r^3$

Now, we have been given the initial volume was 4,188.79 cubic centimeters. Let us find the radius at this time.

Substituting the value of volume in the above equation, we get

$4,188.79=\frac{4}{3}\pi r^3\\
\\
4\pi r^3=4,188.79 \times 3\\
\\
r^3=\frac{4188.79 \times 3}{4\pi}\\
\\
r^3=1000\\
\\
r=10$

Now, the final volume is given by 14,137.167 cubic centimeters. Thus, we have

$14137.167 =\frac{4}{3}\pi r^3\\
\\
4\pi r^3=14137.167 \times 3\\
\\
r^3=\frac{14137.167\times 3}{4\pi}\\
\\
r^3=3375\\
\\
r=15$

Now, let us find the surface areas for these two radii.

For $r=10$

Surface area is given by

$S=4\pi r^2\\
\\
S=4\times 3.14 \times (10)^2\\
\\
S=1256 \text{ square centimeters}$

Similarly, for

$r=15\\
\\
S=4\times 3.14\times (15)^2\\
\\
S=2826 \text{ square centimeters}$

Therefore, the increase in the surface area is given by

$\Delta S= 2826-1256= 1570 \text{ square centimeters}$

Hence, the average rate at which the surface area is changing is given by

$\frac{1570}{12}=130.8$

Therefore, the average rate at which the surface area is changing is given by 130.8 square centimeters per second.

7 0

3 years ago

89. In a drawing, a jar holds the numbers 1 to 8. If you draw three numbers to form a three-digit number (without replacement),

torisob [31]

Answer:

1: D. 1/336

Explanation:

10 x 9 x 8 = 720

There are 720 ways for them to come in first, second and third place.

2. Probability = 1/8 x 1/7 x 1/6 = 1/336

The probability is 1/336 or 0.002976.

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3 years ago

state a strategy for solving a linear system of equations. provide step by step instructions for the chosen strategy such that a

Vesnalui [34]

First solve one of the two equations (whichever is easier) for either x or y, whichever variable is easier. Let's say you solved for x. Then plug what x equals into the 2nd equation as x. So if you got x = 2y + 1, plug that into your other equation and solve for y (you should get a number value).
Now take whatever y equals and plug that back into what you got when you solved for x (the x = 2y + 1) to get what x equals.

4 0

3 years ago