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Pavel [41]
3 years ago
13

Simplify: 3x – 4-5(6x + 7)

Mathematics
2 answers:
sdas [7]3 years ago
4 0

Answer:

− 27 x − 39

Step-by-step explanation:

I had this exact question before on my end of unit I passed it. If this helps please send thanks and feel free to give brainliest.

arsen [322]3 years ago
3 0

Answer:

Step-by-step explanation:

3x - 4 - 30x - 35

-27x - 39

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What is 8.2% of 500?
GuDViN [60]

Answer:

8.2% of 500 = 41

Step-by-step explanation:

Set up the equation. On a piece of paper, write the dividend (number being divided) on the right, under the division symbol, and the divisor (number doing the division) to the left on the outside. ...

Divide the first digit. ...

Divide the first two digits. ...

Enter the first digit of the quotient.

5 0
3 years ago
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An arhitect wants to draw a rectangle with a diagonal of 20 inches. The length of the rectangle is to be 8 inches more than twic
kiruha [24]

The diagonal of a rectangle = sqrt(w^2 + l^2)

w = width

l = length

In this problem,

The diagonal = 20 in

w = x

l = 2x + 8

Let's plug our numbers into the formula above.

20in = sqrt((x)^2 + (2x + 8)^2)

Let's simplify the inside of the sqrt

20 in = sqrt(5x^2 + 32x + 64)

Now, let's square both sides.

400 = 5x^2 + 32x + 64

Subtract 400 from both sides.

0 = 5x^2 + 32x - 336

Factor

0 = (5x - 28)(x + 12)

Set both terms equal to zero and solve.

x + 12 = 0

Subtract 12 from both sides.

x = -12

5x - 28 = 0

Add 28 to both sides.

5x = 28

Divide both sides by 5

x = 28/5

The width cant be a negative number so now we know that the only real solution is 28/5

Let's plug 28/5 into our length equation.

Length = 2(28/5) + 8 = 56/5 + 8 = 96/5

In conclusion,

Length = 96/5 inches

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4 0
3 years ago
Select all the properties of a kite.
drek231 [11]

Answer:

  • B.

Step-by-step explanation:

<u>Here are the Options verified:</u>

  • A. Incorrect. Kites can't be parallelograms.
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<u>Correct choice is B.</u>

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2 years ago
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Marianna [84]

Answer:

c

Step-by-step explanation:

3 and 3/7 ok hope it helps

5 0
3 years ago
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149 cars are waiting to take a ferry across the channel. Each ferry can only hold 18 cars. How many cars will be on the last fer
balandron [24]

149 \div 18 = x
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