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Shalnov [3]
3 years ago
13

Nine students in Maddie's classroom are wearing red. There are

Mathematics
2 answers:
Evgen [1.6K]3 years ago
8 0

Answer:

Yes she is correct cause 30 times 30 percent is 9

Step-by-step explanation:

goblinko [34]3 years ago
5 0

Answer:

She is correct because 30 percent of 30 is 9 or in other words if you multiply 30 by 30 percent you get 9.

Step-by-step explanation:

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CAN SOMEBODY PLLZZZZ HELP ME WITH THE QUESTION BELOW AND HOW TO SOLVE QUESTIONS LIKE THIS, IM STUDYING FOR A MATH TEST PLLLZZ!!!
andreyandreev [35.5K]

Answer:

\frac{-10}{9}, \frac{-2}{3}, \frac{4}{6}, \frac{6}{5}, \frac{5}{4}  

I hope this helps!

3 0
3 years ago
If m∠9 = 130°, what is m∠4?
Bad White [126]

Answer:

m<9=130 it also equal to 180 so 130-180 makes m<4= 50

6 0
3 years ago
A rectangular box has a square base with an edge length of x cm and a height of h cm. The volume of the box is given by V = x2h
creativ13 [48]

It is given in the question that

A rectangular box has a square base with an edge length of x cm and a height of h cm. The volume of the box is given by

V = x^2h cm^3

And the edge length of the base is 12 cm, the edge length of the base is decreasing at a rate of 2 cm/min, the height of the box is 6 cm, and the height is increasing at a rate of 1 cm/min.

Here we differentiate V with respect to t, and we use product rule, that is

V = 2xh(dx/dt)+ x^2(dh/dt)

Substituting the given values , we will get

[tex]dV/dt = 2(12)(6)(-2)+ 12^2(1)[/tex]

dV/dt = -288+144 = -144cm^3/min

So at that moment, the volume is decreasing at the rate of

144 cm^3/min

4 0
3 years ago
Read 2 more answers
Based on the graph of f, which statement is true?
Serjik [45]
The inverse x exists
7 0
3 years ago
Read 2 more answers
19. When baking a cake, you have a choice of the following pans:
dimaraw [331]

The answer is

round cake - 82.42 in²

rectangular cake - 114 in²

Round cake:

d = 7 in

r = d/2 = 7 in / 2 = 3.5 in

h = 2 in

The surface are of a cylinder is:

A = 2πr² + 2πrh

The surface are of the round cake (which is actually a cylindrical cake) excluding the bottom is:

A = 2πr² + 2πrh - πr²

A = πr² + 2πrh

A = 3.14 * 3.5² + 2 * 3.14 * 3.5 * 2

= 38.46 + 43.96

= 82.42 in²

Rectangular cake:

w = 6 in

l = 9 in

h = 2 in

The surface are of a rectangle is:

A = 2wl + 2wh + 2lh

The surface are of the rectangular cake excluding the bottom is:

A = 2wl + 2wh + 2lh - wl

A = wl + 2wh + 2lh

A = 6 * 9 + 2 * 6 * 2 + 2 * 9 * 2

= 54 + 24 + 36

= 114 in²

Step-by-step explanation: This answer is not mine but JcAlmighty’s so all credits go to them.

7 0
3 years ago
Read 2 more answers
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