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3 years ago

An expression is shown below 3(m+5+9m)

Mathematics

2 answers:

crimeas [40]3 years ago

8 0

Answer:

3m+15+27m

Step-by-step explanation:

30m+15=0

m= -0.2

Rasek [7]3 years ago

5 0

Answer:

I'll just help quickly with a couple of expressions that are equivalent.

3(m+5+9m)

If you solve it out, you get 3m+15+27m.

Simply the expression to get 30m+15.

You can regroup to make another expression 5(6m+3) which is also equal.

Step-by-step explanation:hope it helps do good on the test ^-^

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If f(x) = –x2 + 3x + 5 and g(x) = x2 + 2x, which graph shows the graph of (f + g)(x)?

astraxan [27]

Answer:

Step-by-step explanation:

hello,

$f(x)=-x^2+3x+5\\g(x)=x^2+2x \ \ \ so \ \ \ \\\(f+g)(x)=f(x)+g(x)=-x^2+3x+5+x^2+2x=5x+5\\$

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3 years ago

Here is a graph of the relationship between the height and volume of some cylinders that all have the same radius, R. An equatio

Elis [28]

Answer:

Radius is 1 unit

Step-by-step explanation:

The relationship is:

V = πr²h

We have points on the graph:

(9, 28.26) and (18, 56.52)

Use one of the points, substitute into equation and solve for r:

28.26 = 3.14*9*r²
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5 0

3 years ago

Hellpp give explanation for branilest

Whitepunk [10]

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8 = 8/1
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8 0

3 years ago

Joanna earned $120 last week at her job. This is 1/4 of the amount that she earned for the month. What is the equation and the a

AveGali [126]

Answer:

120 x 4 = 480

Step-by-step explanation:

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3 0

3 years ago

Consider two circular swimming pools. Pool A has a radius of 18 feet, and Pool B has a diameter of 11.16 meters. Complete the de

Alexus [3.1K]

Answer:

The circumference of Pool B is greater than the circumference of Pool A by about 0.56 meters

Step-by-step explanation:

Identify the diameter of Pool A.

d = 2r

d = 2(18) Substitute 18 for r.

d = 36 ft

Convert from feet to meters. Use the ratio of 1 foot to 0.305 meters.

36 × 0.305 = 10.98

The diameter of Pool A is about 10.98 meters.

Use the formula to find the circumference of Pool A.

C = πd

C = π(10.98) Substitute 10.98 for d.

C ≈ 3.14(10.98) Substitute 3.14 for π.

C ≈ 34.48 Multiply. Round to the nearest hundredth.

The circumference of Pool A is about 34.48 meters.

Identify the diameter of Pool B.

d = 11.16 m

The diameter of Pool B is 11.16 meters.

Use the formula to find the circumference of Pool B.

C = πd

C = π(11.16) Substitute 11.16 for d.

C ≈ 3.14(11.16) Substitute 3.14 for π.

C ≈ 35.04 Multiply. Round to the nearest hundredth.

The circumference of Pool B is about 35.04 meters.

The circumference of Pool B is greater than the circumference of Pool A.

Find how much greater the circumference of Pool B is compared to the circumference of Pool A.

35.04 − 34.48 = 0.56

The circumference of Pool B is greater than the circumference of Pool A by about 0.56 meters.

7 0

2 years ago