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2 years ago

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FAST 20 POINTS PLEASE HELP WILL GIVE BRAINIEST ANSWER What is the solution of the system of equations? {3x−1/2y=−7/2 x+2y=1 Ente

r your answer in the boxes. ( , )

1 answer:

avanturin [10]2 years ago

7 0

The answer is 17/10 and 82/10

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Please don’t only answer this explain how to figure it out so I have it for future reference

Deffense [45]

The polygon is built of 7 triangles (picture).

$P=7\cdot\dfrac{1}{2}ah\\
a=28.9 \text{ m}\\
h=30 \text{ m}\\\\
P=7\cdot\dfrac{1}{2}\cdot28.9\cdot30\\
P=3034.5 \text { m}^2 \Rightarrow C$

5 0

3 years ago

1) A 20-foot ladder is placed against a building. If the top of the ladder will lean against the building 4sqrt(7) - f feet high

Oxana [17]

Answer:

12√2.

Step-by-step explanation:

You can do this by the Pythagoras theorem:

20^2 = x^2 + (4sqrt7)^2 where x is the distance required.

x^2 = 20^2 - (4sqrt7)^2

= 400 - 112

= 288

x = √288

= √144 *√2

= 12√2.

8 0

1 year ago

your ultra-modern store is one-story round. your square footage is 31,416. What is the diameter of you store ? Area of a circle

zaharov [31]

Answer:

199.96 feet

Step-by-step explanation:

The base of the ultra-modern store is of a round shape.

The area of the base is 31416 square feet.

We have to find the diameter of the base.

Now, the area of a circle is given by $A = \pi r^{2}$

⇒ $31416 = \frac{22}{7} \times r^{2}$

⇒ $r^{2} = \frac{31416 \times 7}{22} = 9996$

⇒ $r= \sqrt{9996} = 99.97$ feet.

Therefore, diameter = 2r = 199.96 feet. (Answer)

8 0

3 years ago

Hey guys! 20 points! Please help! A model rocket is launched from a roof into a large field. The path of the rocket can be model

Georgia [21]

Answer:

145.84 meters

Step-by-step explanation:

6 0

2 years ago

How to spell 15.062 in word form

Tema [17]

Fifteen and sixty-two thousandths

3 0

2 years ago

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