Mathematics High School

h (x) = 2x - 1, find h (9)
_
3

Answers

Answer 1

Answer:

17

Step-by-step explanation:

2(9)-1

18-1

17

Hope that helpa

Related Questions

Write the equation of the line that is perpendicular to y = -2x + 4 and goes through the point (6, 5). Show all work for credit.

Answers

Answer:

y = 1/2x + 2

Step-by-step explanation:

The slope of a perpendicular line is the opposite reciprocal of the original line.

-2 -> 1/2

Find the new y-intercept with the point we are given (6, 5).

y = 1/2x + b

5 = 1/2(6) + b

5 = 3 + b

2 = b

Fill in everything we solved for back into the orignal formula.

y = 1/2x + 2

Best of Luck!

Determine the slope of the line that passes through the points M(-3,5) and N(1,8). Represent the slope in decimal form.

Answers

Answer:

0.75

Step-by-step explanation:

y²-y¹/x²-x¹

8-5/1-(-3)

3/4

=0.75

John has a part-time job. He is payed £6.80 per hour. This week he worked for 9 and a half hours. Work out John's total pay for this week.

Answers

Answer:

£64.6

Step-by-step explanation:

Multiply £6.80 by 9

£61.2

Now divide £6.80 by 2

£3.4

Add £3.4 to £61.2

The answer is £64.6

(I think)

Hope this helps :)

Rearrange the area formula to solve for |
A=lw

Answers

Answer: L=A/W

Or you can plug in the values for Area and width.

Step-by-step explanation:

If you divide the total area by the width, you get the length

A: 400

L: ?

W: 50

400=50L

400/50=50L/50

8=L

L=400/50

L=8

Hope this helps!

A side of the triangle below has been extended to form an exterior angle of 125°. Find the value of xx.

Answers

Answer: 55

Step-by-step explanation:

x+125=180

subtract 125 on each side

when you do that 125 cancels out and your left with

180-125=55

The value of x from the given triangle is 55°.

Given that, a side of the triangle below has been extended to form an exterior angle of 125°.

What are adjacent angles?

Adjacent angles are those angles that are always placed next to each other in such a way that they share a common vertex and a common side but they do not overlap each other.

From given figure, the exterior angle of tringle is 125° and x is adjacent angle to that.

Now, 125°+x=180°

⇒ x=180°-125°

⇒ x=55°

Hence, the value of x from the given triangle is 55°.

To learn more about the adjacent angles visit:

https://brainly.com/question/12838185.

#SPJ2

It takes 6 cubes to build a staircase with 3 steps. How many cubes will be needed for 11 steps?

Pls show work

Answers

Answer:

5 more cubes

Step-by-step explanation:

you just keep on adding the cubes. So i am in honors math and the easiest way to do math like this just use paper so start with the number of cubes and the just keep on adding till you get to the number you need in this case that number is 11.

Jennifer bought 3 shirts for $48.00. At the same rate, how much would Jennifer pay for 10 shirts?

sentence stem:Jennifer would pay $ for 10 shirts.

Answers

Answer:

160 dollars

Step-by-step explanation:

3 for 48.00 dollars meaning that she pays 16 dollars a shirt

16 times 10 is 160

so 160 dollars

Answer:

160

Step-by-step explanation:

48 divided by 3 times 10

Which of the following statements is true about the three quadrilaterals?

a. D and E are similar but not congruent.
b. E and F are similar and congruent.
c. D and E are similar and congruent.
d. F and D are similar but not congruent.

Answers

a. D and E are similar but not congruent.

Find the slope of the line passing through the points ( -9, 3) and (6, 3)

Answers

Answer:

M=0

Step-by-step explanation:

You want to use the formula (y2-y1)/(x2-x1). To do this, subtract 3-3/6- -9 and that is your slope. So the slope is 0/15.

what is the answer to 6(-⅔) =

Answers

Answer:

-4

Step-by-step explanation:

6 × [tex]-\frac{2}{3}[/tex] = -4

I hope this helps!

What is the correct answer? ​

Answers

Answer:

C)   (-3, -1)

Step-by-step explanation:

y = 5/3x + 4

  When x = 0, y = 4

  When y = 0, x = -2.4

  graph the points: (0, 4) and (-2.4, 0)

y = -2/3x - 3

  When x = 0, y = -3

  When y = 0, x = -4.5

  graph the points: (0, -3) and (-4.5, 0)

The lines will cross at point: (-3, -1)

What is the slope of the line with the following coordinates from the
table?

Answers

1/8 is the slope.
(y2 - y1)/(x2 - x1)

Answer: The slope is 1/8

Step-by-step explanation:

The x values go up by 8. That gives the run.

the y values go up by 1. That gives the rise.

Slope is rise/run  SO

1/8 is the slope.

Graph attached.

Simplify the expression: 2x – 3x (5x – 8) – 4r (x - 2)​

Answers

Answer: –4rx –15x^2 + 8r + 26x

Step by step:

= 2x + −15x^2 + 24x + −4rx +8r

= (−4rx) + (–15x^2) + (8r) + (2x+ 24x)

= –4rx + –15x^2 + 8r + 26x

Which of the following numbers is irrational?

-0.3

Answers

Answer:

-3/10

Step-by-step explanation:

lin swims 10 laps in a pool in 25 minutes how many laps per minute is that

Answers

Answer:

2.5 laps per minute

Step-by-step explanation:

The equation of line CD is y = -2x - 2. Write an equation of a line parallel to line CD in slope-intercept form that contains point (4, 5).
y = -2x + 13
y=zx+7
y=x+3
y = -2x - 3

Answers

Answer:

y = -2x + 13

Step-by-step explanation:

13. Jonas is riding his bicycle at 18 kilometers per hour, and he has already ridden for 40 kilometers. (6, 148)​

Answers

Answer:

Step-by-step explanation:

40 / 18

= 2.22 hours

answer this just tell me the color

Answers

Answer:

yellow

Step-by-step explanation:

PLEASE HELP ME PLEASE!!!

Answers

Answer:

cant not see the photo honey

Step-by-step explanation:

Answer:

For point (1, -2): -2 = -1 - 1 = -2. Therefore, point (1, -2) lies on the graph of the equation.

The graph of the equation is the set of points that are solutions to the equation.

A coordinate pair on the graph of the equation is a solution to the equation.

For the point (0, -1): -1 = -(0) - 1 = 0 - 1 = -1.

Therefore, The point ( 0, −1 ) lies on the graph of the equation.

Step-by-step explanation:

I feel like this wont help- qwq okay the answer is C-

Helpp pls it’s 25 points each

Answers

Answer:

1.= 2.5

2.= is incorrect because there should not be more than one = sign

Step-by-step explanation:

The answer choices are

A) <3 and <10
B) <2 and < 10
C) <3 and <7
D) <2 and <8

Answers

I believe it’s C because none of the others are even close and the 3 and 7 add up correctly

Y= 99
9. Suppose a varies directly as b, and a = 7 when b = 2. Find b when a = 21.

Answers

Answer:

6

Step-by-step explanation:

Given expression:

    a varies directly as b;

       a ∝ b

 So;

         a  = kb  where k is the constant of proportionality;

if a= 7 and b  = 2;

         7 = 2k

           k = [tex]\frac{7}{2}[/tex]

Now, find b when a = 21

            21  =  [tex]\frac{7}{2}[/tex]  x b

           b  = 6

 

Select the correct answer.
Gio created a scatter plot and drew a line of best fit, as shown

Answers

Answer:

y=3x+5 is the answer for this question

Answer:

y= 1/3x+4

Step-by-step explanation:

The y-intercept is at 4 and the slope is 1/3

Write the equation in slope-intercept form through the point (-5, 3) and is perpendicular to the line y = 2x - 3 and graph​

Answers

Slope intercept form: y = mx + b

When a line is perpendicular to another line, its slope is the negative reciprocal to that slope.

From this information, we already know that the slope of our new line is -1/2, because -1/2 is the negative reciprocal to 2 (which is the slope of the original line).

y = -1/2x + b

Because the point (-5,3) is given, we can simply plug the x and y coordinates into our incomplete equation.

3 = -1/2(-5) + b

3=2.5 + b

b = 0.5

ANSWER: y = -1/2x + 0.5

THE GRAPH IS LINKED; RED LINE IS y=2x-3 AND BLUE LINE IS y=-1/2x + 0.5

Which expression is equivalent to 2(m − 4) + 1?
A. 2m − 7
B. 2m − 3
C. 2m + 9
D. 2m + 10

Answers

Answer: The answer it A

2(m-4)+1

2m-8+1

2m-7

The answer is A
2(m-4)+1
You would do distributive property which you would do 2×4 which is 6+1=7 which therefore it would be

' $1, 200 . 18 1.5%

Answers

Answer:

2178

Step-by-step explanation:

help this is my last try!!!!!!!!!!!!!!!!!!!!!!!!11

Answers

Answer:

2^8=256

Step-by-step explanation:

Multiply the exponents and simplify

In the school library, there are 110 fiction books, 250 nonfiction
books, and 125 magazines. The ratio of fiction books to magazines is 110 : 125.
Write the ratio of fiction books to magazines as a fraction, a decimal, and a
percent.

Answers

Answer:

110/125 = 22/25

0.88

%88

Step-by-step explanation:

It's basic math.

A picnic favorite is strawberry Shortcake! Each batch of strawberry
shortcake calls for 1 2/5 pounds of cake and 3/4 pound of strawberries. If
you want to make 5 batches of strawberry shortcake, how many pounds
of cake and strawberries do you need to buy?

Answers

Answer:

To make 5 batches of strawberry shortcake you'll need 7 pounds of cake and 3 3/4 pounds of strawberries for a total sum of 10 3/4 pounds.

Step-by-step explanation:

1 - Write an equation to represent the problem

For every batch, it takes 1 2/5 pounds of cake and 3/4 pounds of strawberries

therefore

[tex]Let \\\ n_c = pounds~of~cake \\\n_s = pounds~of~strawberries \\\b = number~of~batches[/tex]

[tex]n_c = 1 \frac{2}{5}b \\\n_s = \frac{3}{4}b[/tex]

For ease of math, lets convert these to decimals

[tex]n_c = 1.4b \\\n_s = 0.75b[/tex]

2 - Plug in your variables to solve for cake and strawberries

Cake

[tex]n_c = 1.4b \\\ n_c = 1.4(5)\\n_c = 7[/tex]

To make 5 batches of strawberry shortcake you will need 7 pounds of cake

Strawberry

[tex]n_s = 0.75b \\\n_s = 0.75(5) \\\n_s = 3.75[/tex]

to make 5 batches of strawberry shortcake you will need 3.75 or 3 3/4 pounds of strawberries --- Totalling in at 10.75 pounds or 10 3/4

Hope this helps :)

what is
-4/3(12k + 27) = -57 - 9k

Answers

Answer:

Step-by-step explanation:

-16k - 36 = - 57 - 9k

-36 + 57 = - 9k + 16k

21 = 7k

21/7 = k

3 = k

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