All categories

3 years ago

Solve the equation below for the variable (x):

Mathematics

1 answer:

user100 [1]3 years ago

3 0

Answer:

Hope this helps. If not let me know and I'll explain it better

You might be interested in

Lois and Clark own a company that sells wagons. The amount they pay each of their sales employees (in dollars) is given by the e

ra1l [238]

Answer:

x=36° (180/5x because 2x+3x)

Step-by-step explanation:

7 0

3 years ago

Find area of the shape

pentagon [3]

The answer is a. You find the area of each shape and add them

4 0

3 years ago

An engineer on the ground is looking at the top of a building. The angle of elevation to the top of a buliding. The angle of ele

Marysya12 [62]

$\tan( \alpha ) \: = \: \frac{h}{b}$
$\alpha \: = \: {22}^{0}$
$h \: = \: 450 \: ft$
Therefore,
$b \: = \: h \cot( \alpha )$
$b \: = \: 450 \: ft \: \times \: \cot( {22}^{0} )$
b = 450 ft × 2.47508685
b = 1,113.78908 ft
or,
b ≈ 1,114 ft.

6 0

3 years ago

What is the factored form of the expression?

Georgia [21]

Answer: The answer is (d) $(4x+7)(7x+8).$

Step-by-step explanation: Given equation to be factored is

$28x^2+81x+56.$

The given expression is quadratic, so we can factor it into two linear factors, by using the following factorisation rule.

$x^2+(a+b)x+ab=(x+a)(x+b).$

So, the given equation can be factorised using the above rule. The factorisation is as follows.

$28x^2+81x+56\\\\=28x^2+49x+32x+56\\\\=7x(4x+7)+8(4x+7)\\\\=(4x+7)(7x+8).$

Thus, the correct option is (d).

7 0

3 years ago

Alice planted some corn in the back yard and measures it’s height regularly. The last time she checked, the stalks were 60 inche

sdas [7]

Answer:

The percent of increase in height of the stalks is 20%.

Step-by-step explanation:

The general formula for a percent increase is as follows: (Original Amount - New Amount/Original Amount) x 100. The original height of the stalks was 60 inches tall. The new height of the stalks is 72 inches. In the numerator of our fraction, we take 72-60 to get 12. Our denominator is the original amount, or 60. This gives us an overall fraction of 12/60, which when we divide gives us 0.2. Once we multiply our decimal by 100, we get an overall percent increase of 20%.

6 0

3 years ago