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3 years ago

I need help with this question. It is a file.

Mathematics

1 answer:

olchik [2.2K]3 years ago

7 0

D because coefficient is the number next to the variable and 7 is the coefficient to the fifth power

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a 46 inch piece of Steel is cut into three pieces so that the second piece is twice as long as the first piece and third piece i

Natasha2012 [34]

X,2x,6x+1=46
(46-1)/5
x=5
5,10,31

4 0

3 years ago

Sovle the equation for x0.5x-4=12

Amanda [17]

Value of x is x=32

Step-by-step explanation:

We need to find the value of x of the equation $0.5x-4=12$

Solving the equation and finding value of x

$0.5x-4=12\\$

Adding 4 on both sides

$0.5x-4+4=12+4\\0.5x=16\\$

Divide both sides by 0.5

$\frac{0.5x}{0.5} =\frac{16}{0.5}\\ x=32$

So, value of x is x=32

Keywords: Solving Equations

Learn more about Solving Equations at:

#learnwithBrainly

5 0

3 years ago

Two vertical poles of lengths 11 ft and 14 ft stand 16 ft apart. A cable reaches from the top of one pole to some point on the g

Alex17521 [72]

We are given

total length of cable is 30 feet

and this cable is on hypotenuse sides of the triangles

so, we can draw triangle as

Let's assume those hypotenuse as 'a' and 'b'

so, we will have

$a+b=30$

now, we can find 'a' and 'b' from triangle

Smaller triangle:

$a=\sqrt{x^2+11^2}$

Larger triangle:

$b=\sqrt{(16-x)^2+14^2}$

we know that

$a+b=30$

so, we can plug this value

and we get

$\sqrt{x^2+11^2}+\sqrt{(16-x)^2+14^2} =30$

now, we can solve for x

$\left(\sqrt{x^2+11^2}\right)^2=\left(30-\sqrt{\left(16-x\right)^2+14^2}\right)^2$

$32x-1231=-60\sqrt{x^2-32x+452}$

$1024x^2-78784x+1515361=3600x^2-115200x+1627200$

now, we can use quadratic formula

we get

$x=\frac{-\sqrt{36416^2-1152389056}+36416}{5152},\:x=\frac{\sqrt{36416^2-1152389056}+36416}{5152}$

$x=4.510,x=9.627$

so,

The point should be located 4.510 feet , 9.627 feet from the smaller pole to use 30 feet cable............Answer

6 0

3 years ago

Thomas is in charge of selling roses for the Graduation dance. The roses sell for $3.50 each. He estimates that the expenses of

KonstantinChe [14]

Answer:

P= $3.5x -$30

Step-by-step explanation:

Let the number of roses Thomas bought and sold be x.

Hence the total selling price would be;

$3.5 × x= $3.5x

The profit = selling price-expenses

P= $3.5x -$30

6 0

3 years ago

Select the correct answer from the drop-down menu. The lengths of three line segments are 4 centimeters, 5 centimeters, and 9 ce

MrMuchimi

I believe the answer is (B) 1 TIME

4 0

3 years ago