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harina [27]
3 years ago
7

Evaulate -7(5+3)-|-6|

Mathematics
2 answers:
s2008m [1.1K]3 years ago
7 0
-7(8)-|-6|
-56-6 = -62
trapecia [35]3 years ago
5 0

Answer:

-62

Step-by-step explanation:

1. -7(5+3) = -7 * 8 = -56

2. -|-6| = -6 (It's negative because of the negative sign outside of the absolute value sign) -56 - 6 = -62

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10.) If a system of equations are dependent what is unique about the lines 2 point
MrRa [10]

Step-by-step explanation:

can we have the picture of the graph?

5 0
3 years ago
A cone with radius 2 and height 9 has its radius tripled. How many times greater is the volume of the larger cone than the small
SpyIntel [72]

Answer:

When increasing the radius 3 times the volume increases 9 times and when it is reduced to a third the volume decreases 9 times

Step-by-step explanation:

We have that the formula for the volume of a cone is:

Vc = pi * (r ^ 2) * h

We first calculate the original volume, where the radius is 2 and the height is 9, replacing:

Vc = 3.14 * (2 ^ 2) * 9

Vc = 113.04

Now if the radius is tripled it would be: 2 * 3 = 6, the radius would be 6, replacing:

Vc = 3.14 * (6 ^ 2) * 9

Vc = 1017.36

If we compare:

1017.36 / 113.04 = 9

This means that when the radius is tripled, the volume increases 9 times.

When if re reduces to a third the radius would be: 2/3, replacing:

Vc = 3.14 * ((2/3) ^ 2) * 9

Vc = 12.56

113.04 / 12.56 = 9

Which means that by reducing it to a third the volume becomes 9 times smaller.

6 0
3 years ago
3) The ratio between the number of
salantis [7]

Answer:

15

Step-by-step explanation:

70÷14=5

5×3=15

So the ratio would be 70:15 which can be simplified to 14:3

5 0
2 years ago
Kevin is 3 times as old as Daniel. 4 years ago, Kevin was 5 times as old as Daniel. How old is kevin now?
puteri [66]
K = Kevin's age
D = Daniel's age

K = 3D

K - 4 = 5(D - 4)

Plug in 3D for the K values in the second equation.

3D - 4 = 5(D - 4)   Use the Distributive Property
3D - 4 = 5D - 20   Add 4 to both sides
     3D = 5D - 16     Subtract 5D from both sides
    -2D = -16            Divide both sides by -2
       D = 8 
 Now, plug that D value into the original equation.

K = 3D    Plug in the D value
K = 3(8)   Multiply
K = 24

Finally, you can double check your math.

4 years ago, Daniel would've been 4 and Kevin would be 20, so Kevin would've been 5 times as old as Daniel.  And 8 x 3 = 24.

So, Kevin is 24.
3 0
3 years ago
Read 2 more answers
Which multiplication has a negative answer?
ki77a [65]
C has a negative answer. hope this helps
6 0
3 years ago
Read 2 more answers
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