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Viefleur [7K]
3 years ago
13

Omggg plsss help again

Mathematics
1 answer:
Lerok [7]3 years ago
5 0

Answer:

The answer Is D

Step-by-step explanation:

The side that is similar is PQ. Have a good day

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A hemisphere has a diameter of 26 centimeters. What is the volume of a sphere with the same radius?
salantis [7]
r= \frac{d}{2}= \frac{26}{2} \;\Rightarrow r=13\,cm  \\  \\ 
V= \frac{4}{3} \pi r^3 \\  \\ 
V= \frac{4}{3} \pi \,(13)^3 \\  \\ 
V= \dfrac{4\cdot 2197}{3} \pi \\  \\ 
V= \frac{8788}{3} \pi\approx 9202,77\,cm^3
4 0
3 years ago
How many dimensions does a point in space have
Andreas93 [3]

Hello, hope you are having a wonderful day.

A point has 0 dimensions. It has no length, width, or depth.

So any point in space has 0 dimensions.

Now, a line has 1 dimension.

Rectangles, squares and other shapes have 2 dimensions.

Cylinders, cubes, cones and other figures have 3 dimensions.

Hope it helps. Please mark Brainliest; I really need it.

~An emotional teen who helps others with joy

Good luck.

8 0
2 years ago
9.5 less than a number n equals 27
LuckyWell [14K]

Answer:

convert 9.5

n-9=27

Step-by-step explanation:

I converted it for you.

7 0
3 years ago
Question 1 (1 point)
olya-2409 [2.1K]

For this case we can propose a system of equations:

x: Let the variable that represents the number of small cookies

y: Let the variable that represents the number of large cookies

According to the statement we have:

x + y = 130\\2x + 3y = 310

We multiply the first equation by -2:

-2x-2y = -260

We have the following equivalent system:

-2x-2y = -260\\2x + 3y = 310

We add the equations:

-2x + 2x-2y + 3y = -260 + 310\\y = 50

We look for the value of the variable "x":

x = 130-y\\x = 130-50\\x = 80

Answer:

They sold 80 small cookies and 50 large cookies

6 0
3 years ago
a boy is 26 years younger than his father in 3 years time his age will be one third his father's age. Find the boy's present age
larisa [96]

Answer:

61 years old

Step-by-step explanation:

26 plus 3 is 29 and 29 times 3 is 87 and 87 minus 29 is 61

3 0
2 years ago
Read 2 more answers
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