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2 years ago

HELP QUICK! PLEASE! PLEASE!

Mathematics

2 answers:

Alex787 [66]2 years ago

5 0

Answer:

I dont know

Step-by-step explanation:

You always do something with the multiplication and division.

Solnce55 [7]2 years ago

5 0

Answer:

9 + 3 x ( 2 ^2 - 1 ) x 4 = 45

Step-by-step explanation:

1: 2x2 - 1 = 3

2: 9 + 3 x 3 x 4 = 45

3: 9 + 9 x 4 = 45

To change the value of expression to 45 we need to put the parentheses in front 2 and after 1.

Don't forget the order of operation.

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1.A cube has side lengths of 15 inches, what is the surface area and volume of the cube? 2. A cube has side lengths of 8 inches,

omeli [17]

Answer:

Cube 1: 3375 cubed inches, 1350 inches squared.

Cube 2: 512 cubed inches, 384 inches squared.

Step-by-step explanation:

Formula for Volume of a Cube: $V=s^3\\$ (s - side length)

Formula for Surface Area of a Cube: $SA=6s^2$ (s- side length)

The side length's 15 inches.

Find the volume:

$V=15^3\\\rightarrow 15*15*15=3375\\\boxed {V=3375}$

The volume of cube one is 3375in³.

Find the surface area:

$SA=6(15)^2\\\rightarrow 15^2 = 225\\SA = 6 * 225\\\boxed {SA=1350}$

The surface area of cube 1 is 1350in².

The side length's 8 inches.

Find the volume:

$V=8^3\\\rightarrow 8*8*8= 512\\\boxed {V=512}$

The volume of cube two is 512in³.

Find the surface area:

$SA=6(8)^2\\\rightarrow 8^2=64\\SA=6*64\\\boxed {SA=384}$

The surface area of cube 2 is 384in².

<em>Brainilest Appreciated. </em>

3 0

2 years ago

Please answer this correctly without making mistakes

IrinaVladis [17]

Answer:

44 5/6 "the second one"

5 0

3 years ago

Is the dolphin deeper than point C or point E?

Pepsi [2]

Point E is correct answer

7 0

3 years ago

If a line is perfectly vertical, meaning it reaches all y- at a single x-, which kind of slope does it have?

Aliun [14]

Answer:

B. Undefined

Step-by-step explanation:

A function cannot have more than one x value with different y values. A vertical line means this happens infinite times. It is undefined.

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2 years ago

What is the scale factor of dilation? <br> 1 over 2 <br> 1 over 3<br> 1 over 4 <br> 1 over 5

Dmitry_Shevchenko [17]

RP is 3 units long and its transformation R'P' is 1 unit long

R'P' = 1/3 * RP

so the scale factor is 1/3

7 0

2 years ago

Read 2 more answers