Mathematics High School

Please help! Easy for everyone but me for some reason.
What's the value of x? Show your work.

Answers

Answer 1

Answer:

x = 9

Step-by-step explanation:

using Pythagoras' identity in the right triangle

the square on the hypotenuse is equal to the sum of the squares on the other 2 sides , that is

x² + 6² = ([tex]\sqrt{117}[/tex] )²

x² + 36 = 117 ( subtract 36 from both sides )

x² = 81 ( take square root of both sides )

x = [tex]\sqrt{81}[/tex] = 9

Related Questions

If f(x) = mx² - 6x - 3 and f'(1) = 12. find the value of constant in (a) 9 (b) 3 (c)-3 (d) -4

Answers

Answer:

a) 186

b) 6

c) 42

Step-by-step explanation:

[tex]f(x) = m {x}^{2} - 6x - 3[/tex]

f'(1) = 12

f'(x) = 2mx - 6

12 = 2(1)m - 6

12 - 6 = 2m

[tex] \frac{2m}{2} = \frac{6}{2} [/tex]

[tex]m = 3[/tex]

[tex]f(x) = 2 {x}^{2} - 6x - 3[/tex]

f(9) = 3( 9)^2 - 6(9) - 3

f(9) = 186

f( 3) = 3( 3)^2 - 6( 3) - 3

f(3) = 6

f( - 3) = 3( - 3)^2 - 6( - 3) - 3

f(-3) = 42

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Answers

Answer:

14 is tha answer lmk if it's wrong or righ

Step-by-step explanation:

What is the percent of decrease from 2.2 to 2.2?

Answers

Answer:

Step-by-step explanation:

(2.2-2.2):2.2*100 =

(2.2:2.2-1)*100 =

100-100 = 0

In the standard (x,y) coordinate plane, a line intersects
the y-axis at (0,2) and contains the point (8,3). What is
the slope of the line?

Answers

Answer:

[tex]\sf Slope =\dfrac{1}{8}[/tex]

Step-by-step explanation:

(0,2) ; (8 ,3)

Slope:

[tex]\sf \boxed{Slope = \dfrac{y_2-y_1}{x_2-x_1}}[/tex]

[tex]\sf = \dfrac{3-2}{8-0}\\\\=\dfrac{1}{8}[/tex]

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Answers

Answer:

do you hvae more imformation

Step-by-step explanation:

The sum of 9 times a number and 8 is 2

Answers

Answer:

where is the question?

Step-by-step explanation:

Find f(–2) for the function f(x) = 3x2 – 2x 7. −13 −1 1 23

Answers

Answer:

Step-by-step explanation:

f ( x ) = 3x² - 2x

To find : f ( - 2 )

f ( - 2 ) = f ( x )

Here,

x = - 2

f ( - 2 ) = 3 ( - 2 )² - 2 ( - 2 )

= 3 ( 4 ) - 2*( - 2 )

= 3*4 + 4

= 12 + 4

f ( - 2 ) = 16

Function 1 is defined by the following table

x. Y

0. 8

3. 12. 5

4. 14

6. 17

Function 2 is defined by line H

Answers

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Answer:Function 2

Step-by-step explanation:

What is the slope of the line that contains the points (-1, 2) and (3, 3)?

Answers

Answer:

[tex]\text Slope = \frac{1}{4}[/tex]

Step-by-step explanation:

the slope of the line that passes through the points

[tex]\large A\left( x_{1},y_{1}\right) \text{and} \ B\left( x_{2},y_{2}\right)[/tex]

[tex]\large \text{slope} =\frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]

the slope of the line that contains the points (-1, 2) and (3, 3) is :

[tex]\Longrightarrow \text{slope} =\frac{3-2}{3-\left( -1\right) }= \frac{1}{4}[/tex]

Help help help !! Only answer if you know the answer !!!

Answers

Answer:

Step-by-step explanation:

5-2+2=5; -8+9+6=7;

3-1+5=7; 0-0+4=4.

finally, the result matrix is:

[tex]\left[\begin{array}{ccc}5 \ 7\\7 \ 4\end{array}\right][/tex]

If you drew a marble from one of the bags below, which bag would give you an equally likely chance of drawing a red or a blue marble?

a bag with 6 red and 19 blue
a bag with 8 red and 9 blue
a bag with 13 red and 13 blue
a bag with 15 red and 14 blue

Answers

Answer:

The bag with 13 red 13 blue, because there is a 50% chance of getting a red or a blue

Kenny and Dee Dee purchased 400 shares of Fly-By-Night stock 3 years ago. They initially paid $6,846
for the stock. Last week they sold the stock at $40. 25 per share. The brokers sales commission was
3. 2%

Answers

Answer: Im not sure

Step-by-step explanation:

don’t even pay attention to this

Please help me!! I don't understand how to do this

Answers

Answer:

76 feet^3

Step-by-step explanation:

Well, since s is showed three times on the large box, we can say they are all the same lengths. So, if one side is 4 feet long, then all side length, are 4. So, 4*4*4. This gets us 64.

So the large box's volume is 64, and the small one, is 12. The total volume is them added. 64+12. This gets us 76.

The answer is 76 feet^3

Calculate 9[divided]1/3
A.9/3

B.3/9

C.13 1/2

D.27

Please help me.

Answers

Answer: I believe the answer would be B

Step-by-step explanation:

[tex]\qquad\qquad\huge\underline{{\sf Answer}}[/tex]

Let's evaluate ~

[tex]\qquad \tt \dashrightarrow \:9 \div \frac{1}{3} [/tex]

[tex]\qquad \tt \dashrightarrow \:9 \times3[/tex]

[tex]\qquad \tt \dashrightarrow \:27[/tex]

so, the correct choice is D. 27

12 = x - 24

I think know the answer but I’m unsure of how to do it

Answers

Answer:

Step-by-step explanation:

you have to isolate your variable. To do this, you add 24 to each side. On the left side its 12+24 and on the right, its 24+(-24) which then equals zero. In simple terms, x=12+24

Answer:

x = 36

Step-by-step explanation:

Add 24 to 12 because 24 is minus, so when it is moved to the other side of the equation it is plus.

PLEASE HELP WILL GIVE BRAINLIEST

Answers

Answer: Definition of midpoint

Step-by-step explanation:

Answer:

defintion of midpoint

Step-by-step explanation:

that is the proof

write an essy explaining the importance of tolerance in society

Answers

Answer:

Tolerance is needed in all spheres of life, and on every level and in every stage because it plays a vital role in establishing peace and love in all the units of society, from the smallest up to the highest. Lack of tolerance leads to violence, and finally it destroys the peace and security of society.

Step-by-step explanation:

9. Blake is putting carpet in a large
room. He has enough carpet to cover
50 square meters of floor. If Blake
first decides on the length of the
rectangle he's going to cover, the
equation below will tell him what the
width of the rectangle can be.

Answers

The equation that will tell him what the width of the rectangle can be is w = 50m² / length.

What equation represents the width of the rectangle?

A rectangle is a 2-dimensional quadrilateral with four equal right angles. A rectangle has two diagonals that are equal in length and bisect each other.

Area of a rectangle = length x width

Width = area / length

width = 50m² / length.

To learn more about how to calculate the area of a rectangle, please check: https://brainly.com/question/16595449

L=9m + 2n. Work out the value of L when m = 3 and n = -6

Answers

Answer:

L= 15

Step-by-step explanation:

L= 9m + 2n Given Equation

L = 9 (3) + 2 (-6) Substitute values for their variables

L= 27 + 2 (-6) Simplify multiplication

L= 27 -12 Simplify multiplication (remember a positive times a

negative is a negative)

L= 15 (Simplify)

Isaac bought snacks for his team's practice. He bought a bag of chips for $2.94 and a 8-pack of juice bottles. The total cost before tax was $16.62. How much was each bottle of juice?

Answers

Answer:

$1.71

Step-by-step explanation:

Just took the test.

The cost of each juice bottle is $1.71.

Let, the cost of each juice bottle as "x".

Given:

Cost of chips = $2.94

Total cost before tax = $16.62

Isaac bought an 8-pack of juice bottles, so the total cost of the juice bottles is 8x.

The total cost of chips and juice bottles should be equal to the total cost before tax:

Cost of chips + Cost of juice bottles = Total cost before tax

$2.94 + 8x = $16.62

Now, solve for "x" the equation:

8x = $16.62 - $2.94

8x = $13.68

Divide both sides by 8:

x = $13.68 / 8

x = $1.71.

So, the cost of each juice bottle is $1.71.

To learn more on equation click:

https://brainly.com/question/14468218

#SPJ3

What is the length of AD (square)

Answers

Answer:

ALL SIDES MUST BE THE SAME

Answer:

5 cm

Step-by-step explanation:

Please Help i’m stuck on this math problem

Answers

Step-by-step explanation:

i tried to give the answer good luck you all

find six rational number between –1 and 0

Answers

Answer:

Answer. so -7/8, -6/8, -5/8, -4/8, -3/8, -2/8 are the six no.

Step-by-step explanation:

The equation cosx = square root 3/2 is an identity.
A. True
B. False

Answers

Answer:

false, because cos(x) has no definite answer, and equations aren't identities

Step-by-step explanation:

False because cosx has no definite answer

One angle of a triangle measures 20°the other two angles are in a ratio of 3:5. What are the measures of those two angles?

Answers

Answer:

180-20 = 160 = sum of the other two angles

3/(3+5) = 3/8 x 160 = 60 degrees

5/(3+5) = 5/8 x 160 = 100 degrees

or in radians the other two angles are pi/3 and 5pi/9

Step-by-step explanation:

THIS ANSWER IS CORRECT

BRAIN LESS ANSWER

What does u equal in 4/5u=8

Answers

Answer:

u = 10

Step-by-step explanation:

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

First,by cross multiply 5u by 8
It gives 40u then dividing both sides by 40 it gives 1/10

If a circle is equally divided into 6 angles, what is the measure of each angle?

Answers

Step-by-step explanation:

The answer is 60°

because

360÷6 = 60

due today need help pls

Answers

Answer:

I beleive that the systems of transformation are that

Figure JKLM to Figure J' K' L' M' is a Rotation

Figure J' K' L' M' to Figure J" K" L" M" is a Dilation

Step-by-step explanation:

A
trapezoid

triangle

square

circle

is the only plane shape in which every point on the figure is the exact same distance from the center.

Answers

I believe the right answer is trapezoid

Misty needs 216 square inches of metal

to make a yield sign.

If the height of the sign is 18 inches,

how long is the top edge of the sign?

24 inches

12 inches

198 inches

22 inches

Answers

Answer:

Step-by-step explanation:

Area = 216

The area of triangle = 1/2 b * h

Since height = 18 --> 1/2 b * 18

so,

216 = 1/2 b * 18

Divide both sides by 18

12 = 1/2 b

Divide both sides by 1/2, (which is the same as multiplying both sides by 2)

24 = b

Answer:

24 inches

Step-by-step explanation:

Given:

[tex]\bullet \ \ \text{Height of sign: 18 inches} \\ \bullet \ \text{Area of Yield sign: 216 inches}^{2}[/tex]

The yield sign shown here is a triangle. Therefore, the question is asking to find the base of the triangle. Keep in mind that the area of a circle is 1/2 multiplied by the base multiplied by the height.

[tex]\implies \text{Area of yield sign} = \dfrac{1}{2} \times \text{Base} \times \text{Height}[/tex]

Substitute the height and the area in the equation and simplify.

[tex]\implies \text{216 inches}^{2} = \dfrac{1}{2} \times \text{Base} \times 18[/tex]

[tex]\implies \text{216 inches}^{2} =\text{Base} \times 9[/tex]

Divide both sides by 9.

[tex]\implies \dfrac{\text{216}}{9} =\dfrac{\text{Base} \times 9}{9}[/tex]

[tex]\implies24 \ \text{inches} =\text{Base}[/tex]

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Please help! Easy for everyone but me for some reason. What's the value of x? Show your work.

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Please help! Easy for everyone but me for some reason.
What's the value of x? Show your work.