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3 years ago

2x to the power of 2 + x = ? When x=9

Mathematics

2 answers:

oee [108]3 years ago

8 0

Answer:

Step-by-step explanation:

2x to the power of 2 + x = ? When x=9

(2x)^2 + x

= 4x^2 + x

When x = 9

= 4(9)^2 + 9

= 4(81) + 9

= 324 + 9

= 333

mezya [45]3 years ago

7 0

Answer:

Step-by-step explanation:

$\text{Put}\ x=9\ \text{to the expression}\ 2x^2+x:\\\\2(9^2)+9=2(81)+9=162+9=171$

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I need help (3/4)x+2=(3/8)x-4

bezimeni [28]

Answer:

x = -16

Step-by-step explantion:

Solve for x by simplifying both sides of the equation, then isolating the variable.

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2 years ago

jefferson park sits on one square city block 300 feet on each side. Sidewalks join opposite corners. About how long is each diag

wolverine [178]

About 425 feet, a^2*b^2=c^2, so 90,000+90,000=180,000 and the square root of 180,000 is about 424.

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2 years ago

A house is valued at $118,000.00. The homeowner decides to add on a two-car garage that increased the value of the home by 15%.H

nasty-shy [4]

Answer:

The value of the house after adding the garage is $135,700.

Step-by-step explanation:

Given,

value of house before adding garage = $118,200.00

we need to find the value of house after adding two car garage.

Solution,

Since after adding two car garage the value of the house increased by 15%.

So firstly we will find out the 15% of the value of the house after adding garage.

So we can say that;

15% of the value of the house after adding garage is equal to 15 divided by 100 the multiplied with the value of the house before adding garage.

15% of the value of the house after adding garage = $\frac{15}{100}\times118,000=\$17,700$

Now, The value of the house after adding garage is equal to the sum of value of house before adding garage and 15% of value of house before adding garage.

We can frame it in equation form as;

The value of the house after adding garage = $\$118,000+\$17,000=\$135,700$

Hence The value of the house after adding the garage is $135,700.

3 0

3 years ago

What is x if x/5 =-9

Leona [35]

Answer:

x = -45

Step-by-step explanation:

Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Multiply 5 to both sides:

(x/5) * 5 = (-9) * 5

x = -9 * 5

x = -45

x = -45 is your answer.

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3 years ago

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A is used when the owner is still alive.

olga nikolaevna [1]

Answer:

Yes, and?

Step-by-step explanation:

8 0

2 years ago

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