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3 years ago

What would be the expression after distributing, -3(x+5)?

Mathematics

2 answers:

polet [3.4K]3 years ago

7 0

Answer:

-3x-15

Step-by-step explanation:

-3*x

-3*5

sweet-ann [11.9K]3 years ago

3 0

Answer:

-3x - 15

Step-by-step explanation:

to find the expression you would multiply the negative three to both the x and 5, this will give you a -3x and a -15 because the 15 is a negative you wouldn't use the plus sign anymore, instead you would use the negative for the 15

hope this helped! :)

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Combine the like terms<br> 2g + 15 + 3g + g + g- 18

ZanzabumX [31]

Answer:

7g - 3

Step-by-step explanation:

2g + 15 + 3g + g + g - 18

2g + 3g + g + g + 15 - 18

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3 years ago

Given the figure below, find the values of x and z.

iragen [17]

Answer:

x=6 and z=107

Step-by-step explanation:

From the figure or diagram we can say that

z+15x-17=180 ---(1)

z+11x+7=180 ---(2)

Subtracting (1) and (2)

z+15x-17-(z+11x+7)=180-180

4x-24=0

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Substitute x=6 in (2)

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z+66+7=180

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2 years ago

Cone A has a radius of 2 inches and a height of 3 inches. In cone B, the height is the same, but the radius is doubled. Calculat

wlad13 [49]

Answer: Option C.

Step-by-step explanation:

Use the formula for calculate the volume of a cone:

$V=\frac{1}{3}\pi r^2h$

Where r is the radius and h is the height.

Volume of the cone A:

$V_A=\frac{1}{3}\pi (2in)^2(3in)=12.56in^3$

Volume of the cone B:

If the height of the cone B and the height of the cone A are the same , but the radius of the cone B is doubled, then its radius is:

$r_B=2r_A\\r_B=2*2in\\r_B=4in$

Then:

$V_B=\frac{1}{3}\pi (4in)^2(3in)=50.26in^3$

Divide $V_B$ by $V_A$ :

$\frac{V_B}{V_A}=\frac{50.26in^3}{12.56in^3}=4$

Therefore: When the radius is doubled, the resulting volume is 4 times that of the original cone.

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300 + 12 = 312 total minutes for the week.

Divide total minutes by minutes per round trip:

312 / 78 = 4 round trips total

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Answer:

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