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Alex Ar [27]
3 years ago
11

Test #

Mathematics
1 answer:
Agata [3.3K]3 years ago
7 0
5 is the slope and 3 is the y-intercept
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the volume of a cone is 120 cubic centimeters. the height of the cone is 4.5 centimeters. determine the radius of a cone
kolbaska11 [484]
<h3> given:</h3>

<u>v = 120 \:  {cm}^{3}</u>

<u>h = 4.5 \: cm</u>

<h3>to find:</h3>

the radius of the cone.

<h3>solution:</h3>

r =  \sqrt{3 \frac{v}{\pi \: h} }

r =  \sqrt{3  \times   \frac{120}{\pi \times 4.5} }

r = 5.04627 \: cm

r = 5.05 \: cm

<u>hence</u><u>,</u><u> </u><u>the</u><u> </u><u>radius</u><u> </u><u>of</u><u> </u><u>the</u><u> </u><u>given</u><u> </u><u>cone</u><u> </u><u>is</u><u> </u><u>5.05</u><u> </u><u>centimeters</u><u>.</u>

7 0
3 years ago
Simplify the expression 2 (2 + 4y) + 3x.<br> PLS ANSWER ASAP DUE 9:20
Novay_Z [31]

Answer:

5x+8y

Step-by-step explanation:

We can first open the brackets by using the distrubitive propety.

2(x+4y)+3x

2x+8y+3x

Now we can combine like terms.

5x+8y.

I combined the 3x and the 2x. This works because imagined I have 3 of something then I got 2 more of that something I would now have 5 of that something.

Hoped this helped,

JoeLouis2

7 0
3 years ago
Enter a number in each blank M(x)=(2x-6)(x-4) true statements when M(x)=0 when x=
KengaRu [80]

Answer:

{3, 4}

Step-by-step explanation:

"M(x)=(2x-6)(x-4) true statements when M(x)=0 when x= ?" asks us to find the "roots" of M(x); that is, the x values at which M(x) = 0.  Thus, we set

(2x - 6)(x - 4) = 0, which is equivalent to 2(x - 3)(x - 4) = 0.

Thus, x - 3 = and x = 3; also x - 4 = 0, so that x = 4.  

The roots of M(x) are {3, 4}

Using the language of the original problem:  "true statements when M(x)=0 when x="              the correct results, inserted into the blanks, are x = 3 and x = 4.

4 0
3 years ago
Someone help me on this math problem.
timofeeve [1]

If M is a midpoint of PQ, then we can use the formula of a midpoint:

\left(\dfrac{x_1+x_2}{2},\ \dfrac{y_1+y_2}{2}\right)

We have the endpoints (-2a, 0) and (0, 2b). Substitute:

\dfrac{-2a+0}{2}=\dfrac{-2a}{2}=-a\\\\\dfrac{0+2b}{2}=\dfrac{2b}{2}=b

<h3>Answer: M(-a, b)</h3>
4 0
3 years ago
The number of points that Shira scored each basketball game so far this season is shown on the dot plot. A number line going fro
romanna [79]

Answer:

A: the data is skewed to the right and shows that she never scored fewer than 2 points or more than 12 points in a game

Step-by-step explanation:

3 0
4 years ago
Read 2 more answers
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