All categories

3 years ago

PLZ HELP! Sorry about the terrible picture but I had to take it quick cuz I need an answer fast.

Mathematics

2 answers:

ValentinkaMS [17]3 years ago

7 0

Answer:

it will 90° because it is making right angle at C

Natalka [10]3 years ago

7 0

Answer:

40 digree is the answer

brooo I think it will help u

You might be interested in

1992

liq [111]

Answer:

Hello heloo it's my first question so IAm just writing any thing

4 0

3 years ago

Expand and simplify (4+×)(5+×)

Minchanka [31]

For this, we use the FOIL method of expanding brackets; start by multiplying the FIRST terms of each bracket together to get xx=x^2. Next multiply the OUTSIDE elements, ie the first element in the first bracket and the last in the second, giving x(-5)=-5x. Then comes the INSIDE elements, giving 4x=4x, and finaly the LAST elements of each bracket, giving 4(-5)=-20. Adding all these terms together gives us our answer; x^2+4x-5x-20, which can be simplified to x^2-x-20.
Hope this helps!

8 0

3 years ago

Find the values of x and y.

mash [69]

Answer:

y=60°

x=12°

Step-by-step explanation:

because the propertiy of parallelogram is the opposite side have equal measurement.

that is why y=60°

x+3=15 the paralla side are equal

x=15°-3°

x=12°

proof》》》》x+3=

12°+3°=15°

15°=15°

7 0

3 years ago

Which expressions are equivalent to 1/2+3c+4/5

Nitella [24]

The equivalent expression of 1/2 + 3c + 4/5 is $\frac{13 + 15c}{10}$

<h3 /><h3>How to determine the equivalent expression?</h3>

The expression is given as:

1/2 + 3c + 4/5

Take the LCM of the expression

$\frac{5 + 15c + 8}{10}$

Evaluate the like terms

$\frac{13 + 15c}{10}$

Hence, the equivalent expression of 1/2 + 3c + 4/5 is $\frac{13 + 15c}{10}$

Read more about equivalent expression at:

brainly.com/question/2972832

#SPJ1

3 0

2 years ago

A storage tank will have a circular base of radius r and a height of r. The tank can be either cylindrical or hemispherical (ha

Neko [114]

Answer:

Volume: $\frac{2}{3}\pi r^3$

Ratio: $\frac{2}{9}r$

Step-by-step explanation:

First of all, we need to find the volume of the hemispherical tank.

The volume of a sphere is given by:

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

where

r is the radius of the sphere

V is the volume

Here, we have a hemispherical tank: a hemisphere is exactly a sphere cut in a half, so its volume is half that of the sphere:

$V'=\frac{V}{2}=\frac{\frac{4}{3}\pi r^3}{2}=\frac{2}{3}\pi r^3$

Now we want to find the ratio between the volume of the hemisphere and its surface area.

The surface area of a sphere is

$A=4 \pi r^2$

For a hemisphere, the area of the curved part of the surface is therefore half of this value, so $2\pi r^2$ . Moreover, we have to add the surface of the base, which is $\pi r^2$ . So the total surface area of the hemispherical tank is

$A'=2\pi r^2 + \pi r^2 = 3 \pi r^2$

Therefore, the ratio betwen the volume and the surface area of the hemisphere is

$\frac{V'}{A'}=\frac{\frac{2}{3}\pi r^3}{3\pi r^2}=\frac{2}{9}r$

6 0

3 years ago

PLZ HELP! Sorry about the terrible picture but I had to take it quick cuz I need an answer fast.​

PLZ HELP! Sorry about the terrible picture but I had to take it quick cuz I need an answer fast.