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Ulleksa [173]
3 years ago
11

-2 • (-3)3 = ? i really need help, I’m struggling so much in math.

Mathematics
2 answers:
Ronch [10]3 years ago
6 0

Answer:

The answer would be 54

Step-by-step explanation:

nadezda [96]3 years ago
4 0

Let's break this statement into small pieces. Let's start with (-3)^{3}. This means -3 \times -3 \times -3 which is equal to -27 (-3 \times -3 = 9, 9 \times -3 = -27).

Note the following rules

  • - \times - = +
  • + \times + = +
  • - \times + = -
  • + \times - = -

Now let's solve the rest of the equation. -2 \cdot (-3)^{3} = -2 \cdot -27 (Note \cdot is the same as \times. = -2 \cdot -27, 54

The answer is 54

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5,10,5,20,5 what is the mean
Ksivusya [100]
Work: 5,5,5,10,20
Add
5+5+5+10+20
10+5+10+20
15+10+20
25+20
45
÷ by the amount of numbers
45÷5=9
Ansser: mean=9
7 0
4 years ago
Read 2 more answers
(y + 2x - 3) + (27²-y-3​
ArbitrLikvidat [17]

Answer:

=2x+723

Step-by-step explanation:

y+2x−3+272−y−3

=y+2x+−3+729+−y+−3

Combine Like Terms:

=y+2x+−3+729+−y+−3

=(2x)+(y+−y)+(−3+729+−3)

=2x+723

3 0
3 years ago
What is the difference between the 8th multiple of8 and the 5th multiple of 8
diamong [38]

The eighth multiple of  8  is  64 .
The fifth multiple of  8  is  40 .
Their difference is  24 .

5 0
4 years ago
Help please... I need help
Contact [7]

Step-by-step explanation:

3x = 12 - 18

3x = (- 6)

X = (-6)/3

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6 0
3 years ago
The store salsa jars have a height of ten centimeters and a radius of five centimeters. If there is only four centimeters of sal
Romashka-Z-Leto [24]

Answer:

V=471.24cm^{3} (simplified)

V=150\pi cm^{3} (in terms of pi)

Step-by-step explanation:

Since the salsa jar is basically a cylinder, to solve this we are using the formula for the volume of a cylinder:

V=\pi r^{2} h

where

V Is the volume of the cylinder (salsa jar)

r is the radius of the cylinder (salsa jar)

h is the height of the cylinder (salsa jar)

We know from our problem that height of the full salsa jar is 10 centimeters; we also know that that there are only 4 centimeters of salsa left in the salsa jar. So, to find the the height of the missing salsa, we just need to subtract the height of the salsa from the height of the full salsa jar: h=10cm-4cm=6cm. Since the radius of the salsa jar never changes, r=5cm.

Now we can replace the values in our volume formula to find how much salsa is missing from the jar:

V=\pi r^{2} h

V=\pi (5cm)^{2} (6cm)

V=\pi (25cm^{2})(6cm)

V=150\pi cm^{3}

V=471.24cm^{3}

We can conclude that there are 471.24 cubic centimeters missing from the jar, or in terms of pi: 150\pi cm^{3}.

3 0
4 years ago
Read 2 more answers
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