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Sidana [21]
3 years ago
11

Pls help me on this !!!

Mathematics
1 answer:
Anuta_ua [19.1K]3 years ago
7 0

Answer:

7, 12, 13

Step-by-step explanation:

Use the Pythagorean theorem equation on all of them. The one that does not make the equation true is the  answer.

a^2 + b^2 = c^2

A.

a^2 + b^2 = 18^2 + 80^2 = 6724

c^2 = 82^2 = 6724

Right triangle.

B.

a^2 + b^2 = 7^2 + 12^2 = 193

c^2 = 13^2 = 169

Not a right triangle.

C.

a^2 + b^2 = 3^2 + 4^2 = 25

c^2 = 5^2 = 25

Right triangle.

D.

a^2 + b^2 = 45^2 + 60^2 = 5625

c^2 = 75^2 = 5625

Right triangle.

Answer: 7, 12, 13

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Nonamiya [84]

OKay i willl help what are the questions


4 0
3 years ago
jessica weighs x+34 pounds and Ronda weighs 12 pounds less. If Jessica gains 5 pounds and Ronda loses 2 pounds, what is the sum
Vladimir [108]

Answer:

2x+59.

Step-by-step explanation:

Let <em>J </em>represent Jessica's weight and <em>R</em> represent Ronda's weight.

Jessica weighs <em>x+34</em> pounds. Thus:

J=x+34

Ronda weighs 12 pounds less than Jessica. In other words:

R=J-12=(x+34)-12\\R=x+22

The sum of their weights, therefore, is:

J+R\\=(x+34)+(x+22)=2x+56

Now, if Jessica gains 5 pounds and Ronda loses 2 pounds, the net gain of the total weight would be 3 pounds. Thus, we only need to add 3 to the original total to find the sum of their new weights:

2x+56+3=2x+59

The sum of the new [weights] is represented by 2x+59.

8 0
3 years ago
Which statement is true about the circumference of a circle? The circumference is equal to the radius of the circle. The circumf
Irina18 [472]
<h3>The true statement about circumference of a circle is:  circumference is found by multiplying Pi by the diameter</h3>

<em><u>Solution:</u></em>

<em><u>The circumference of a circle is given as:</u></em>

\text{circumference } = 2 \pi r

Where,

"r" is the radius of circle

We know that,

diameter = 2 \times radius\\\\d = 2 \times r\\\\d = 2r

<em><u>Thus the circumference can also written as:</u></em>

\text{circumference } = 2 \pi r\\\\\text{circumference } = \pi \times d

Thus, the circumference is found by multiplying Pi by the diameter is correct statement

7 0
3 years ago
Read 2 more answers
908 - 105<br> A 0.00908<br> B 9.08<br> C 90.800,000<br> D 0.908
mote1985 [20]

Answer:

A.AAAAaAAAAAAAAAAAAAaAAA

6 0
2 years ago
cylinder with height 9 inches and radius is filled with water, it can fill a certain pitcher. How many of these pitchers can a c
larisa [96]

Answer:

4

Step-by-step explanation:

The 1st cylinder used to fill the pitcher has:

height:

h = 9 in

radius:

r = r

The volume of a cylinder is given by:

V=\pi r^2 h

Therefore, the volume of the 1st cylinder is

V=\pi r^2 9=9\pi r^2

We are told that the water inside this cylinder can fill a certain pitcher, so this is also the volume of the pitcher.

Then, we have a second cylinder, which has height

h = 9 in

and radius

r' = 2r

So the volume of this cylinder is

V'=\pi r'^2 h = \pi (2r)^2 9 =9\pi (4r^2)=36\pi r^2

This means that the number of pitchers that can be filled by this 2nd cylinder is

n=\frac{V'}{V}=\frac{36\pi r^2}{9\pi r^2}=4

8 0
3 years ago
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