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3 years ago

Please help PRECAL, I do not understand

Mathematics

1 answer:

Vladimir79 [104]3 years ago

7 0

The answer is 0.

1 • -2 = -2
-2 + -2 = -4
-4 • -2 = 8
-8 + 8 = 0
0 • -2 = 0

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Can u give me brainlist pls

Yakvenalex [24]

You only get brainliest if you answer questions (the person who wrote the question gives out brainliest)

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3 years ago

Mr. Rives' rotating sprinkler waters his lawn up to a radius of 7 feet. What is the maximum number of square feet of lawn mr. Ri

zaharov [31]

Answer:

Step-by-step explanation:

Mr. Rives' rotating sprinkler waters his lawn up to a radius of 7 feet. The formula for determining the area of a circle is expressed as

Area = πr²

Where

π is a constant whose value is 3.14.

r represents the radius if the circle.

The area covered by one of Mr. Rives' rotating sprinkler would be

3.14 × 7² = 3.14 × 49 = 153.86ft²

Therefore, the maximum area of lawn that two sprinklers can cover would be

153.86 × 2 = 307.72 ft²

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3 years ago

Jimmy made 16 quarts of lemon juice. How many liters of lemon juice did Jimmy make? 1 gallon = 4 quarts 1 gallon = 3.785 liters

nexus9112 [7]

The answer is 15.14

1 gallon = 4 quarts
1 gallon = 3.785 liters

16 quarts = 4 gallons
4 x 3.785 = 15.14

3 0

3 years ago

Read 2 more answers

Which expression represents the volume, in cubic units, of the composite figure?

Kipish [7]

The missing figure is attached

The expression represents the volume in cubic units of the composite figure is (Four-third)π(10)³ + π(10)²(28) ⇒ 1st answer

Step-by-step explanation:

The figure consists of

Two hemispheres
A cylinder

The volume of the hemisphere = $\frac{2}{3}\pi r^{3}$ , where r is its radius

The volume of the cylinder = πr²h, where r is its radius and h is its height

∵ The diameter of the hemisphere s and the cylinder is 20 units

∵ The radius = $\frac{1}{2}$ diameter

∴ The radius = $\frac{1}{2}$ × 20 = 10 units

∵ The volume of a hemisphere = $\frac{2}{3}$ πr³

∵ r = 10

- Substitute r by 10 in the rule

∴ The volume of a hemisphere = $\frac{2}{3}$ π(10)³

∵ The volume of the cylinder = πr²h

∵ h = 28 and r = 10

- Substitute h by 28 and r by 10 in the rule

∴ The volume of the cylinder = π(10)²(28)

∵ The volume of the figure = 2(volume of a hemisphere) +

volume of the cylinder

∴ The volume of the figure = 2( $\frac{2}{3}$ )π(10)³ + π(10)²(28)

∵ 2 × $\frac{2}{3}$ = $\frac{4}{3}$

∴ The volume of the figure = $\frac{4}{3}$ π(10)³ + π(10)²(28)

The expression represents the volume in cubic units of the composite figure is (Four-third)π(10)³ + π(10)²(28)

Learn more:

You can learn more about the volume of figures in brainly.com/question/12497249

#LearnwithBrainly

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4 years ago

Read 2 more answers

Classify each polynomial by the number of terms ( monomial, binomial, trinomial)

Mars2501 [29]

Answer:

1). monomial

2). binomial

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3 years ago