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2 years ago

EASY MATH QUESTION HELP! Under the Angle Addition Postulate, which equation would be valid?

Mathematics

2 answers:

Licemer1 [7]2 years ago

6 0

Answer:

B for the first one , and C for the second

Step-by-step explanation:

for the first question DEG which is 60, and GEF which is 120, would equal to 180 degrees, which would be DEF because its a linear pair.

For the second question the are alternate exterior angles, so the are opposite of each other and on the outside.

Dmitriy789 [7]2 years ago

5 0

Answer: Whats True about 2 angles and 7 anglesis that They are not the same number and one of them is less and great

Step-by-step explanation: This is not a easy math question.

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Notah lives in Minnesota. He records the lowest temperature each day for one week. What is the mean of the temperatures? -7.3°F,

natita [175]

Answer:

-2.1

Step-by-step explanation:

-7.3 - 11.2 - 1.7 + 0 + 0 +2.2 + 3.3

--------------------------------------------------

= -2.1

4 0

2 years ago

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Need help with this geometry assignment due soon smart people and mark Brainly

skad [1K]

Answer:

1. a + b + c = 180

2. b + d = 180

3. d = a + c

Step-by-step explanation:

1. a + b + c = 180:

Angles in a triangle add up to 180

2. b + d = 180:

Angles in a straight line equal 180 because they are supplementary angles

3. d = a + c:

ΔACD is an exterior angle, and ΔACB is interior adjacent, hence ∠a and ∠c add up to ∠d

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3 years ago

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If x=9 and y=−3, evaluate the following expression:20−5y+2x

pentagon [3]

Answer:

Step-by-step explanation:

20-5y+2x

20-5(-3)+2(9)

20--15+18

cancel out the negative signs

20+15+18

=53

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2 years ago

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A cylinder and a cone have the same volume. The cylinder has radius x and height y. The cone has radius 1/3x. Find the height of

Temka [501]

Great question! I had this question in Geometry on Edmentum.

Answer: Height of cone = 3y

Step-by-step explanation:

We know that the cylinder and the cone have the same volume. The cylinder has radius x and height y. We will make use of the formulas:

Volume of cylinder = πr²h

Volume of cone = 1/3πr²h

Since the cone has radius 1/3x, we will have to make its height 3 times of y (the height of the cylinder) to make both the cylinder and the cone have the same volume.

So, the height of the cone is equal to 3y.

Hope this helps, and have a wonderful day! :D

Please mark me brainliest! I don't have trouble getting points, but I do when it comes to brainliest.

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3 years ago

A tourist first walked 17km with a speed of v km/h. Then he hiked 12 km uphill with the speed that was 2 km/hour less than his o

ExtremeBDS [4]

Answer: $t=\frac{17}{v}+\frac{12}{v-2}$

Step-by-step explanation:

Given: A tourist first walked 17km with a speed of v km/h.

Since $Speed=\frac{distance}{time}$

therefore, $Time=\frac{distance}{speed}$

Let $t_1$ be the time he walked with speed v.

then $t_1=\frac{17}{v}$

Also he hiked 12 km uphill with the speed that was 2 km/hour less than his original speed.

Let $t_2$ be the time he hiked 12 km,

Then $t_2=\frac{12}{v-2}$

The total time for the whole trip is given by:-

$t=t_1+t_2=$

Substitute the values of $t_1$ and $t_2$ in the equation, we get

$t=\frac{17}{v}+\frac{12}{v-2}$

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3 years ago