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postnew [5]
4 years ago
13

Which equation has the components of 0 = x2 - 9x - 20 inserted into the quadratic formula correctly?

Mathematics
1 answer:
Archy [21]4 years ago
8 0

Answer:

c

Step-by-step explanation:

just did it on the assignment

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Two similar solids have edges of 12 feet and 24 feet. If the smaller
nekit [7.7K]

Answer: 2,160\ ft^3

Step-by-step explanation:

The first step is to find the ratio of the lengths.

According to the information given in the exercise, one the solids has edges of  12 feet and the other solid has edges of 24 feet.

Therefore, the ratio of the length of the smaller solid to the length of the is the following:

k=\frac{24\ ft}{12\ ft}\\\\k=2

Now, the ratio to the volumes of the smaller solid to the other one is the following:

k^3=2^3=8

Then, knowing that the volume of the smaller solid is:

V_s=270\ ft^3

You get that the volime of the larger solid is:

V_l=270\ ft^3*8\\\\V_l=2,160\ ft^3

8 0
3 years ago
Simplify the expression:<br> -10(32-6)<br> —————<br> 3
skelet666 [1.2K]

Answer: -260

Step-by-step explanation:

5 0
3 years ago
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Find the slope and y intercept of the line whose equation is -6x+y=-4
Ad libitum [116K]
For
ax+by=c
slope=-a/b

we have
-6x+1y=-4
slope=-6/-1=6
slope is 6

yint is where x=0

-6(0)+y=-4
0+y=-4
y=-4
yint is at y=-4 or (0,-4)
8 0
3 years ago
your warehouse had 51 cases of happy cola at the start of your shift a truck arrived this morning with another 25 cases of happy
guapka [62]

The answer is 76, since 51+25 = 76

6 0
3 years ago
Read 2 more answers
A cable car can safely carry n people thete are alreafy 3/4n people on the cable car only 12 more people can board the cable car
ipn [44]

Answer: 48 people.

Step-by-step explanation:

1. You know that n represents tha number of people that the cable car can safely carry.

2. If you know that there are \frac{3}{4}n and only 12 more people can board it before it becomes unsafe, you can write the following expression:

n=\frac{3}{4}n+12

3. Now, you must solve for n.

4. Then, the number of people that the cable car safely carry is:

n-\frac{3}{4}n=12\\\frac{1}{4}n=12\\n=12*4\\n=48

4 0
3 years ago
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