-3x - 8 = 10
Usatestprep

Answers

Answer 1

Answer:

X = -6

Step-by-step explanation:

Add 8 to both sides

- 3x = 18

divide by -3

x = -6

Answer 2
The correct answer for this is X=-6

Related Questions

The point (5,0) is a solution of 3 x - y > 4.
true or false ?

Answers

Answer:

false

Step-by-step explanation:

its not correct

The point (5,0) is NOT the solution; it’s false

Here are three symbols.
<
>
=
Write one of these symbols in each box to make four true state

Answers

Step-by-step explanation:

4 + 9 = 3 ^ {2}

13=3^{2}

13=9

Answer:

a. <

b. =

c. =

d. >

these are correct I guess

A regular 12-gon has side length 8 inches. What is its area?

Answers

Answer:

RELATED

How to Solve a Hexagon

Updated October 23, 2018

By Chris Deziel

A polygon is any closed two-dimensional figure with 3 or more straight (not curved) sides, and a 12-sided polygon is known as a dodecagon. A regular dodecagon is one with equal sides and angles, and it's possible to derive a formula for calculating its area. An irregular dodecagon has sides of different lengths and different angles. A six-pointed star is an example. There's no easy way to calculate the area of an irregular 12-sided figure unless you happen to have it plotted on a graph and can read the coordinates of each of the vertices. If not, the best strategy is to divide the figure into regular shapes for which you can calculate the area.

Calculating the Area of a Regular 12-Sided Polygon

To calculate the area of a regular dodecagon, you have to find its center, and the best way to do that is to scribe a circle around it that just touches each of its vertices. The center of the circle is the center of the dodecagon, and the distance from the center of the figure to each of its vertices is simply the radius of the circle (r). Each of the 12 sides of the figure is the same length, so denote this by s.

You need one more measurement, and that's the length of a perpendicular line drawn from the midpoint of each side to the center of the 12-sided shape. This line is known as the apothem. Denote its length by m. It divides each section formed by the radius lines into two right-angled triangles. You don't know m, but you can find it using the Pythagorean theorem.

The 12 radius lines divide the circle you scribed around the dodecagon into 12 equal sections, so at the center of the figure, the angle each line makes with the one next to it is 30 degrees. Each of the 12 sections formed by the radius lines is made up of a pair of right-angled triangles with hypotenuse r and one angle of 15 degrees. The side adjacent to the angle is m, so you can find it using r and the sine of the angle.

Step-by-step explanation:

The area of the polygon is  344.18 square inches.

What is the area?

The area is the amount of area occupied by an object's flat (2-D) surface or shape.

Given:

A regular 12-gon has a side length of 8 inches.

Apothem of the polygon,

a = {8/2(tan180/8)}

a = 8/2tan22.5

a = 7.17 inches.

The area of the polygon,

= 12 x 8 x 7.17 / 2

= 344.18 square inches.

Therefore, the area is 344.18 square inches.

To learn more about the area;

https://brainly.com/question/27683633

#SPJ6

Solve five ninths minus two sixths

options:

twelve fifty fourths

twenty fifty fourths

six thirds

three over one

Answers

The answer would be 12/54 (twelve fifty fourths) but if you simplify it you would get 2/9 (two ninths).

help i will mark brainly

Answers

Answer:

hey i see that you are on nitro type what is your name

the answer is 2/6

Step-by-step explanation:

Answer:

2/5

Step-by-step explanation:

I will give you brainliest if you answer this right.

Answers

The answers are in order:
1/10
1/6
2/3
3/5

a(7x + 3) = b + 14x?

Answers

Answer:

Step-by-step explanation:

So first add 7 +3 adn get 10, then add 14, and then you will get 24

24 is your answer.

NEED HELP WITH THIS PLEASE

Answers

Answer:

-25 + 75 = 50

Step-by-step explanation:

Since we don't know the value of the bar, we will call it x.

-25 + x = 50

Add 25 to both sides to find the value of x.

x = 75

You can also double check this answer by doing simple math.

-25 + 75 = 50

What is the value of x 39 (2x+1)

Answers

Answer:

2xx_{39}+x_{39}

Step-by-step explanation:

x 39 ( 2 x + 1 )

Use the distributive property to multiply x_{39} by 2x+1.

2x_{39}x+x_{39}

2xx_{39}+x_{39}

What is the slope of the line represented by the values in the table ?

Answers

Answer:

2

Step-by-step explanation:

14-(-2)/10-2

14+2/10-2

16/8

2

I think 2 bec it’s correct

Assume that a random sample of 4 Goldfinch birds are going to be used to test the above hypothesis. Compute the largest value of the sample mean, that will allow the experimenter reject the null and prove the alternative at significance level 0.01. For this problem, make sure that your solution includes all steps of your computation. You will not earn points if you just use a formula

Answers

This question is incomplete, the complete question is;

Assume that body masses of Goldfinch birds follow a normal distribution, with a standard deviation equal to 0.04 oz. An ornithologist who would like to make some inference about the average body mass of the Goldfinch birds. In particular, at a significance level of 0.01, she would like to test the null hypothesis H₀: Average body mass of the Goldfinch birds is 0.5 oz, against the alternative claim that average body size is less than 0.5 oz.

      Assume that a random sample of 4 Goldfinch birds are going to be used to test the above hypothesis. Compute the largest value of the sample mean, that will allow the experimenter reject the null and prove the alternative at significance level 0.01. For this problem, make sure that your solution includes all steps of your computation. You will not earn points if you just use a formula

Answer: the largest value of the sample mean that will enable the experimenter to reject the null hypothesis is 0.4534 oz.

Step-by-step explanation:

Let us consider testing a hypothesis about a population mean with population standard deviation that is known,

Let the average body mass of the Goldfinch bird be μ^μ

Now our hypotheses are will be;

H₀ : μ = 0.5    and

H₁ : μ < 0.5

For the test, we shall use the z statistic which will be

z = (x"-μ)/(σ/√n)

Now given that;

σ = 0.04 and n = 4  

sample mean x" = ?

Now in order to be able to reject the null hypothesis, the p-value should be ≤ α = 0.01.

so to find the largest value of sample mean, we will use the maximum of p-value that is 0.01.

For a p-value = 0.01 at the lower tail (which is the percentile for z),

the corresponding z will be -2.33

so we substitute our values into our formula

z = (x"-μ)/(σ/√n)

z(σ/√n) = (x"-μ)

-2.33(0.04/√n) = (x"-0.5)

-0.0466 = x" - 0.5

x" = 0.5 - 0.0466

x"= 0.4534

therefore the largest value of the sample mean that will enable the experimenter to reject the null hypothesis is 0.4534 oz.

Number of doctors and lawyers asked whether they prefer to watch medical dramas or court dramas on TV according to the table below the percent of a lawyer surveyed preferred medical dramas

Answers

Answer:

Although doctor-centric dramas can be entertaining, they're usually filled with a number of inaccurate portrayals of the medical field.

To see where which popular shows get the details right and which ones are loaded with problems, Insider consulted with real doctors and nurses.

Here's how the experts really feel about popular medical shows.

Note: The Entertainment Value and Medical Accuracy scores on each slide are the averages of the scores (out of 10) that the experts provided for each show.

Step-by-step explanation:

please mark me as brainlest answer hope this helps

If F(x)= logx, which statement best describes the transformation (0.5(x-3)) + 12

Answers


Answer: Shifted up 10.5 units
Vertical compression
Explanation:
To find the transformation, compare the function to the parent function and check to see if there is a horizontal or vertical shift, reflection about the x-axis or y-axis, and if there is a vertical stretch.

im so confused how to get the answer.​

Answers

Answer:

A

Step-by-step explanation:

9 items at $50 each would be 9 × $50 = $450, which is more money than he has.

A because 9x50 is 450 which is

Please help, find the exterior angles of the two polygon.

Answers

Answer:

6) 106 degrees

7) each 'x' angles measures 118 degrees

Step-by-step explanation:

The sum of the measures of all exterior angles is always 360 degrees.

if m this is so confusing

Answers

55 + 180 = 235

BDC = 235

correct solution to the inequality x+1>5?​

Answers

x>4

Always isolate the variable.
x+1>5
-1 -1
=x>4

26+5 i am in kinder pls help

Answers

31 you kinder ok bud
Answer:
31
you could just use a calculator yk

what is 98.704 in expanded using powers of ten

Answers

Answer:

[tex]9.8704 * 10^1[/tex]

Step-by-step explanation:

The standard form is called the scientific notation expressed generally as;

[tex]A * 10^n[/tex]

A is an integer between 1 and 10

n is ant integer or fraction

Given the decimal value 98.704, we ill shift the decimal point to the back once to have;

98.704 = [tex]9.8704 * 10^1[/tex]

Note the when the decimal point is shifted backwards the value of n is always positive. Hence the expansion in power of 10 is [tex]9.8704 * 10^1[/tex]

1. Is an arithmetic sequence a function?
Sometimes, it depends on the arithmetic sequence.
Yes, always.
Not enough information is given.
No, never

Answers

Yes, always.

A sequence is a function that takens a positive integer and maps it some other number. For any integer you plug into the sequence, you only ever get one output.

Rank in Oder 4/9,2/3,7/12,5/6

Answers

Answer:

The sorted inputs in order from least to greatest is:

4/9 < 7/12 < 2/3 < 5/6

Step-by-step explanation:

Using the given inputs:

4/9,2/3,7/12,5/6

The least common denominator (LCD) is: 36

Rewriting as equivalent fractions with the LCD:

4/9,          2/3,          7/12,          5/6

16/36,       24/36,       21/36,       30/36

Sorting this table by the numerators of the equivalent fractions in order from least to greatest:

4/9            7/12             2/3             5/6

16/36  <    21/36    <     24/36  <     30/36

Therefore, the sorted inputs in order from least to greatest is:

4/9 < 7/12 < 2/3 < 5/6

give example of a monotone subsequence of the sequence Sn=cos(n.π/3)

Answers

A monotone subsequence is a subsequence that is either increasing or decreasing, which we define as follows:

A sequence (S) is increasing if [tex]S_n \geq S_m[/tex] whenever n>m.A sequence (S) is decreasing if [tex]S_n \leq S_m[/tex] whenever n>m.

Here, we can create a subsequence by taking every sixth term:

• When n = 6, [tex]S_n = \cos(6\pi /3) = \cos(2\pi) = 1[/tex]

• When n = 12, [tex]S_n = \cos(12 \pi /3) = \cos(4\pi) = 1[/tex],

and so on, and every such element will have a value of 1. This is a monotone subsequence.

Which expression is equivalent to 6-(-8)?
-6+8
-6+(-3)
6+(-8)
6 + 8

Answers

The answer od this question is 6+8.

What is the value of a3 - b2 for a = 3 and b =1/2 ?

Answers

Step-by-step explanation:

a = 3[tex]b = \frac{1}{2} [/tex]

Answer

[tex] {a}^{3} - {b}^{2} [/tex]

[tex] = {3}^{3} - { \frac{1}{2} }^{2} [/tex]

[tex] = 27 - \frac{1}{4} [/tex]

[tex] = \frac{107}{4} [/tex]

[tex] = 26 \frac{3}{4} [/tex]

sorry if wrong :)

A plant has a height of 8 1/4 inches. What is the height of the plant after it grows 1 7/8 inches?

Answers

Just add 8 1/4 inches and 1 7/8 inches.
Answer: 10 1/8 inches

PLzzz help meeeeeeeeeeeeeeeeeeeeee


In rhombus MATH, the coordinates of the endpoints of the diagonal MT are M(0, 2) and T(4, 6). Write an equation of the line that contains diagonal AH. Give your answer in slope-intercept form.

Answers

Answer:

y = - x + 6

Step-by-step explanation:

-- Rhombus diagonals are perpendicular and bisect each other.

-- A( [tex]x_{1}[/tex] , [tex]y_{1}[/tex] ) and B( [tex]x_{2}[/tex] , [tex]y_{2}[/tex] )

Coordinates of the midpoint of a segment AB are

( [tex]\frac{x_{1} +x_{2} }{2}[/tex] , [tex]\frac{y_{1} +y_{2} }{2}[/tex] )

and formula of a slope of the line segment AB is

m = [tex]\frac{y_{2} -y_{1} }{x_{2} -x_{1} }[/tex]

-- If AB ⊥ CD then [tex]m_{AB}[/tex] × [tex]m_{CD}[/tex] = - 1

-- Slope-point of linear equation is

y - [tex]y_{1}[/tex] = m( x - [tex]x_{1}[/tex] )

~~~~~~~~~~~~~~~~

M(0, 2)

T(4, 6)

[tex]m_{MT}[/tex] = [tex]\frac{6-2}{4-0}[/tex] = 1

[tex]m_{AH}[/tex] = - 1

Coordinates of the intersection of the diagonals are ( [tex]\frac{4+0}{2}[/tex] , [tex]\frac{6+2}{2}[/tex] ) = (2, 4)

y - 4 = - 1(x - 2)

y = - x + 6 is slope-intercept form of the diagonal AH

Label the following graph as vertical or horizontal:

x = –2





A.
Circle

B.
Horizontal

C.
Vertical

D.
Curved

Answers

The answer is vertical.

Plz answer will mark brainliest

Answers

Answer:

3cm

It would be 3.35, but rounded it is 3cm

Step-by-step explanation:

268/80 = 3.35

6 minutes to 16 minutes

Answers

Answer:

um im not sure if you need to simplify but then the answer would be 3 minutes to 8 minutes.

which type of plate boundary is illustrated in each of the following figures below​

Answers

Answer:

SEXXXXXXXZZZZZz

Step-by-step explanation:

AJ is writing a report about Calvin Coolidge. He's including information about the former president's early days. Should he quote directly from a biography of Coolidge or paraphrase the information? Why?️

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