Mathematics High School

Find the value of x that makes the equation true.

2[x + (2 1/2 + 2x )] = -3 (x - 1 ) + 9

Answers

Answer 1

Answer:

x = 7/9 or 0.78 as a decimal

Step-by-step explanation:

have a nice day!! :)

Related Questions

5. Find the area of trapezoid


Please help

Answers

Answer:

39.2

Step-by-step explanation:

A- area of trapezoid

a-Base  

b-Base  

h-Height

[tex]A=\frac{a+b}{2} h=\frac{7(9.2+2)}{2}=39.2[/tex]

7. In the box plot below, which quarter of the data has the greatest spread of numbers?

A. 1st
B.2nd
C.3rd
D.4th​

Answers

Either 3rd or 4th. Probably 4th but im sorry not sure

Answer:

Step-by-step explanation: number 1

Mr. Todd runs 3/4 of a mile every 1/10 of an hour. What is his unit rate in miles per hour?​

Answers

Answer:

15/2 miles/hour

Step-by-step explanation:

this is the .answer in the pic

help help help help help i suck at math

Answers

Answer: D

Step-by-step explanation:


The hypotenuse of a right triangle is 10 inches long. The longer leg is 2 inches longer than the shorter leg. Find the side lengths of the triangle.

Answers

Answer: Shorter leg = 6 inches

Longer leg = 6+2 = 8 inches

Step-by-step explanation:

Let the shorter leg bw represented by x.

Therefore, the longer leg will be x+2.

The hypothenuse is 10inches

We should note that in Pythagoras theorem, the square of the longer and shorter side equals the square of the hypothenuse. This will be:

x² + (x+2)² = 10²

x² + x² + 4x + 4 = 100

2x² + 4x = 100 - 4

2x² + 4x = 96

2x² + 4x - 96 = 0

x² + 2x - 48 = 0

x² + 8x - 6x - 48 = 0

x(x + 8) -6(x + 8) = 0

x - 6 = 0

x = 0+6.

x = 6

Shorter leg = 6 inches

Longer leg = 6+2 = 8 inches


PLEASE LOOK AT THE PICTURE I REALLY NEED HELP AND ILL APPRECIATE IT IF SOMEONE HELPS ME

Answers

A,B,D
!!!!!!!!!!!!!!!!!!!!!!!!!!!

13 Find the surface area of the cylinder. Round to the
15.in
19 in.
Not drawn to scale
A 1791 in.
B. 11281 in.
C3204 in
D. 5815 in.
2

Please help I’m doing a test and it’s being timed

Answers

I don’t know if you still need the answer but it would be C) 3204 in.

if your reading this please help meeee

Answers

Answer:

both angles are 92 degrees

Step-by-step explanation:

88+c=180

c=92

c and b are vertical angles and all vertical angles are equal

Please help me out.❤️

Answers

Answer:

7

Step-by-step explanation:

Write the numbers lowest to greatest

16  18 20 21 25 42

range is  25- 18 = 7

Geometry help please! Thank you

Answers

Answer:

ZWXY

Step-by-step explanation:

The other shape is the same but you want to name it the same way that they named the first one

HELP ME PLEASE I'll give brainliest

Answers

Answer:

angle bcf = 113 degrees :)

Step-by-step explanation:

angle bca and angle dcf equal 134 in total

360-134= 226

226/2=113

Answer:

113

Step-by-step explanation:

Remark

<BCA and <BCF are on the same straight line. That means when added, they equal 180 degrees.

Givens

<BCA = 67

Two Parallel lines

1 Transversal

Solution

<BCA + < BCF = 180

67 + <BCF  = 180

<BCF = 180 - 67

<BCF = 113

A number is 11 less than 3 times another number. The sum of the numbers
is 25. What are the two numbers?
Can you please send the work too

Answers

Step-by-step explanation:

this is simple use it and enjoy

Step-by-step explanation:

Let x be the first number

Let y be the 2nd number

given,

[tex]x = 3y - 11 \\ x - 3y = - 11[/tex]

as equation 1

and

[tex]x + y = 25[/tex]

as equation 2.

Now we will use elimination method to solve for simultaneous equations.

We will use equation 1 - equation 2 to eliminate x to solve for y.

[tex]x - x - 3y - y = - 11 - 25 \\ - 4y = - 36 \\ y = - 36 \div - 4 \\ = 9[/tex]

Substitute y into equation 2.

[tex]x + 9 = 25 \\ x = 25 - 9 \\ = 16[/tex]

The numbers are 9 and 16.

HELP ASAP!!! PLEASE!!! look at the screenshot (15 pts)

Answers

Answer:

should be A sorry if I'm wrong

What is the GCF of 36 and 68?

Answers

Answer:

4

Step-by-step explanation:

Answer:

The greatest common factor of 36 and 68 is 4

Step-by-step explanation:

36÷4=9

68÷4=17

Hey please help me this is an Angle sum theorem!!!

Answers

Answer:

900° and 1260°

Step-by-step explanation:

The sum of the interior angles of a polygon is calculated as

sum = 180° (n - 2) ← n is the number of sides

(2)

Here n = 7 , then

sum = 180° × 5 = 900°

(3)

Here n = 9 , then

sum = 180° × 7 = 1260°

I need help please!!

Answers

A
B
C
E
F
G
(It’s basically just a game of making pairs)

can some one answer my question i put up plz and ill mark you the b and give you 50 points

Answers

Answer:

what is your question

Step-by-step explanation:

what is the area of a circle with a radius of 10​

Answers

Answer:  A≈314.16

Step-by-step explanation: A=πr2=π·102≈314.15927

314.16 bc that’s the answer blah blah blah

A ball is thrown into the air with an upward velocity of 28ft/s. Its height h in feet after t seconds is given by the function h = -16t^2 + 28t + 8

Answers

Answer:

In bold below.

Step-by-step explanation:

Find derivative which gives the velocity:

V = h' = -32t + 28

At maxm height V = 0 so

-32t + 28 = 0

Time to reach maxm height t = -28/-32 = 0.875 seconds.

So maxm height

= -16(0.875)^2 + 28*0.875 + 8

= 20.25 ft.

Find the slope of the line that passes through (3, 5) and (8, 1). Simplify your answer and write it as a proper fraction, improper fraction, or integer.

Answers

Answer: Answer is B

Step-by-step explanation:

What is the value of x? Enter your answer in the box.

Answers

Answer:

Lilly, since the angles are the same we can set the equal to each other, that's the "trick" of this problem

Step-by-step explanation:

3x + 50 = 6x - 10

3x + 60 = 6x

60 = 3x

20 = x

see how I got that?

Describe fully the single
transformation that takes
shape A to shape B.​

Answers

Búscalo en m a t h w a y hay tiene que aparecer que tengas buen día

Answer:

enlarge by scale factor -1/2, centre 6,5

Set B = {55, 57, 58, 59, 61}. Which number in set B has the smallest prime factor?

Answers

Answer:

58

Step-by-step explanation:

1 isn't a prime number. 2 is the smallest, which is in 58

Brainlyist for the right answer

Answers

Answer:

it is C.

Step-by-step explanation:

just trust me.

Answer:

she is right it's C

Step-by-step explanation:

Have a good Day! :)

please helpppppp i will mark you braliest

Answers

Answer:

0.3

Explanation:

you multiply all numbers together to get 0.3

Answer is 0.3

have a great day!

When graphing c=12, would you use an closed circle or opened circle?

Answers

Answer:

closed

Step-by-step explanation:

because its = not -< or>-

please help i’ll give brainliest

Answers

Answer:

Step-by-step explanation:

In ecosystems, matter and energy are transferred from one form to another. Matter refers to all of the living and nonliving things in that environment. Nutrients and living matter are passed from producers to consumers, then broken down by decomposers. Decomposers break down dead plant and animal matter.

 Jackie so $9500 worth of vacuum cleaners in December if she earns a commission rate of 15% of all sales what commission Did she earn

Answers

Answer:

1425

Step-by-step explanation:

I'm pretty sure 1425 is 15% of 9500.

A ladder of length 6m leans against a vertical wall so that the base
of the ladder is 2m from the wall. Calculate the angle between the
ladder and the wall.

Answers

Answer: sin x = 2/6

x = 0.33

x = 19.5 degrees

Step-by-step explanation:

Given that the slope of the graphed linear function is -3, which formula could represent the function?
es -
A)
y = -3x + 4
B)
y = -3(x + 4)
y = -3x - 4
D)
y = -3(x - 4)

Answers

Answer: y= -3(x+4)

Step-by-step explanation:

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