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sdas [7]
3 years ago
6

Are the expressions 2x+8 and 2(x+4)+4 equivalent

Mathematics
2 answers:
andriy [413]3 years ago
4 0

Answer:

No

Step-by-step explanation:

2x+8 2(x+4)+4

2(x)+2(4)+4

2x+8+4

2x+12

tensa zangetsu [6.8K]3 years ago
3 0

Answer:

No

Step-by-step explanation:

2(x+4)+4 distributing the 2 comes out as 2x+8+4 and then simplified comes out to 2x+12 which is not equal to 2x+8 so your answer is no.

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At the beach, 49% of people have red towels and 11% have blue towels. If the
Margaret [11]

Answer: 40%

Step-by-step explanation:

Percentage of people that have red towels = 49%

Percentage of people that have blue towels = 11%

Therefore, the percentage of the people at the beach have white

towels will be:

= 100% - (49% + 11%)

= 100% - 60%

= 40%

Therefore, the answer is 40%.

3 0
3 years ago
I need the awnser ASAP plz!!​
Ganezh [65]

Answer:

it is D

Step-by-step explanation:

the ratio is 1.5 so multiply 15 by 1.5

3 0
3 years ago
What is the volume of this cone?
olchik [2.2K]

Answer:

The volume of the cone is approximately 453.0 cm³

Step-by-step explanation:

The volume of a cone is one third that of a cylinder with the same height and radius.  That gives us  1/3 πr²h, where r is radius and h is height.

However, we are not given the height of the cone, but the side length.  We can work out the height using the Pythagorean theorem, as we have a right triangle with the height, base radius, and length.  You may recall that the Pythagorean theorem states that the square of the hypotenuse of a right triangle is equal to the sum of the squares of it's other two sides:

a^2 = b^2 + c^2

So we can find the height of the cone with that:

10.8^2 = 7.4^2 + h^2\\h^2 = 10.8^2 - 7.4^2\\h^2 = 116.64 - 54.76\\h^2 = 61.88\\h = \sqrt{61.88}\\h \approx  7.9

Now that we have the cone's height, we can solve for its volume:

v = \frac{1}{3} \pi r^2 h\\v = \frac{1}{3} \pi \times 7.4^2  \times 7.9\\v = \frac{1}{3} \pi \times 54.76 \times 7.9\\v = \frac{1}{3} \pi \times 432.6\\v = \pi \times 144.2\\v \approx 453.0 cm^3

5 0
3 years ago
Read 2 more answers
Which similarity postulate or theorem can be used to verify that the two
Snowcat [4.5K]

Answer:

C

Step-by-step explanation:

AA postulate because we are given 2 of the 3 angles of each triangle. They are both the same in each triangle. Also, we can find the 3rd angle in each triangle. Since both triangles have the exact same angles, they are similar.

7 0
2 years ago
1kg-1/4-3/8=<br><br>what is it please help​
olga_2 [115]

Answer: it's either kg-5/8 or kg + -5/8

Step-by-step explanation:

4 0
2 years ago
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