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Alisiya [41]
3 years ago
10

How do you do this? Yeah

Mathematics
1 answer:
Aliun [14]3 years ago
7 0

Answer:

17

Step-by-step explanation:

You have to plug -2 into every x in the function, so:

(-2)^2 - 3 (-2) + 7

4 + 6 + 7

17

You might be interested in
If the diagonal of a square is approximately 12.73, what is the length of its sides?
Alja [10]

Answer:

The length of the sides of the square is 9.0015

Step-by-step explanation:

Given

The diagonal of a square = 12.73

Required

The length of its side

Let the length and the diagonal of the square be represented by L and D, respectively.

So that

D = 12.73

The relationship between the diagonal and the length of a square is given by the Pythagoras theorem as follows:

D^{2} = L^{2} + L^{2}

Solving further, we have

D^{2} = 2L^{2}

Divide both sides by 2

\frac{D^{2}}{2} = \frac{2L^{2}}{2}

\frac{D^{2}}{2} = L^2

Take Square root of both sides

\sqrt{\frac{D^{2}}{2}} = \sqrt{L^2}

\sqrt{\frac{D^{2}}{2}} = L

Reorder

L = \sqrt{\frac{D^{2}}{2}}

Now, the value of L can be calculated by substituting 12.73 for D

L = \sqrt{\frac{12.73^{2}}{2}}

L = \sqrt{\frac{162.0529}{2}}

L = \sqrt{{81.02645}

L = 9.001469325

L = 9.0015 (Approximated)

Hence, the length of the sides of the square is approximately 9.0015

7 0
3 years ago
What is the missing coefficient of the x-term of the product (-x-5)² after it has been simplified?
Mice21 [21]

The missing coefficient of the x-term after finding the product of (-x - 5)², is: C. 10.

<h3>What is the Coefficient of a Variable?</h3>

The coefficient of a variable is the numerical value that comes before the variable and multiplies it.

Find the product of (-x - 5)²:

(-x - 5)(-x - 5)

-x(-x - 5) -5(-x - 5)

x² + 5x + 5x + 25

x² + 10x + 25

The x-term is "10x". The coefficient is: 10.

Learn more about the coefficient of a variable on:

brainly.com/question/16895867

#SPJ1

5 0
3 years ago
Estimate and then solve 8,784 ÷ 61 = ___.
Mnenie [13.5K]

Answer:

8784/61

144#

Mark as a brainlist

5 0
2 years ago
A stadium can seat 16,000 people at full capacity. If there are 13,920 people in the stadium, what percentage of the capacity is
AVprozaik [17]

Answer:

13%

Step-by-step explanation:

the total amount:16,000,Amount of people:13,920

13,920/16,000=87% of people who showed up

100%-87%=13%

4 0
3 years ago
What is 9-3 divied by 1/3 + 1 =
agasfer [191]

Answer:

1

Step-by-step explanation:

3 divided by 1/3 is 9, and 9-9=0

0+1=1

5 0
3 years ago
Read 2 more answers
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