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musickatia [10]
3 years ago
12

A rectangle is 2 √7 feet wide and 3 √7 feet long. What is the area, in square feet, of

Mathematics
1 answer:
Flura [38]3 years ago
3 0

Answer:

42ft^{2}

Step-by-step explanation:

2\sqrt{7} × 3\sqrt{7}

Multiply the numbers outside the root and inside the root.

2x3=6      7x7=49

6\sqrt{49}

Simplify whats under the root

\sqrt{49} = 7

6×7=42

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Fiesta28 [93]
Pasa 96 veces. Porque cuando en una hora ahí 4 múltiples de 3. Tu coges las 4 vez es I lo multiplica a 24 horas. Así es como yo resulte con el número 96.
5 0
3 years ago
Every week, Hector’s 20 hours earns $210.00. He earns a constant amount of money per hour.
lesantik [10]

Answer: 20 weeks in 1 week

in 2 weeks 40

Step-by-step explanation:

This proves that the equation is true

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3 years ago
HURRY PLEASE!!! I NEED TO TURN THIS IN SOON<br><br> i need an explanation too.
Dominik [7]

Answer:

X = 30°, y = 15° and z = 150°.

Reason: Look below.

Step-by-step explanation:

Hey there!

When we look into the figure, we find that;

For x:

x+ 2x + 90° = 180° {Being linear pair}

or, 3x = 180°-90°

or, 3x = 90°

or, x= 90°/3

<u>Therefore, X = 30°.</u>

For y :

2y = x = 30° {Alternate angles are equal}

or, 2y = 30°

y = 30°/2

<u>Therefore, y = </u><u>1</u><u>5</u><u>°</u>

For z:

2y + z = 180° { Being linear pair}

or, 30°+z = 180°

or, z = 180°-30°

or, z = 150°

<u>Therefore, z = 150°.</u>

<em><u>Hope</u></em><em><u> </u></em><em><u>it</u></em><em><u> helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

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The cost of holding a children's birthday party at a rollerskating rink is a function of n, the number of people in the party. T
Bas_tet [7]

Answer: It would cost $150 for a party of 9 people and it would cost $260 for 20 people

Step-by-step explanation:

The number 9 falls in between 0<n<_ 12 so the cost is 150

The number 20 falls in between 12<n<_ 20 so the cost is 260

4 0
2 years ago
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