Mathematics High School

7(2x + 3) – 5x - 9
simplify the following expressions into equivalent forms

Answers

Answer 1

Answer: 9x + 12

Step-by-step explanation:

7(2x + 3) - 5x - 9

14x + 21 - 5x - 9

-5x         +5x

9x + 21 - 9

       -9  +9

9x + 12

Related Questions

Need help with a quesiton? (100 because nobody answers ever)

Answers

Answer: 122?

Step-by-step explanation: i used a protractor (im not the best at that though but im 89% sure i'll be honest

Answer:

TH ANSWER IS 32

Step-by-step explanation:

A cyclist rides a distance of 36 km at an average speed of 16 km/h.

Calculate the time taken to complete this ride. Give your answer in hours and minutes.

Please Help!

Answers

Answer:

2.25 hours, or 2 hours and 15 minutes.

Step-by-step explanation:

All we do is 36/16 which is 2.25. 0.25 or 1/4 of an hour is 15 minutes. So, your answer is 2 hours and 15 minutes.

It takes 2 hour and 12 minutes for the cyclist to complete the ride of 36km distance.

What is unitary method?

The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.

Total distance covered by cyclist= 36km

Average speed of the cyclist = 16km/hr

Therefore, using unitary method:

                16 km distance takes time = 1hr

Therefore, 1 km distance takes time =(1/16)hr

Therefore, 36 km distance takes time = (1/16)×36 hr

                                                     =(1/4)×9 hr

                                                     =9/4 hr

                                                     =2.25 hr

                                                      =(2+0.25)hr

                                                      =2hr+0.25hr

                                                      =2hr+0.25×60minutes

                                                      =2hr and 15 minutes.

Hence, it takes 2hr and 15 minutes for the cyclist to complete 36 km rides.

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What single transformation was applied to triangle A to get triangle B?

Answers

Answer:

should be reflection

Step-by-step explanation:

bc a translation would just move it and rotation and dilation wouldn't work either

The single transformation was applied to triangle A to get triangle B is a reflection, in which A is reflected around the y-axis.

What is reflection?

Reflection is a type of transformation that flips a shape along a line of reflection, also known as a mirror line, such that each point is at the same distance from the mirror line as its mirrored point.

Given:

The triangles A and B are shown in the given figure,

Resizing an item uses a transition called dilation. Dilation is used to enlarge or contract the items. The result of this transformation is an image with the same shape as the original,

Rotation is the process of going around a center.

A shape is translated when it is moved up, down, left, or right without turning. They are congruent if the translated shapes (or the image) seem to be the same size as the original shapes.

Thus, triangle A is reflected as B.

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Which of the statements about the graph is true?

Answers

the last one :) hope this help

Answer:

#4

Step-by-step explanation:

Positive Slopes go diagonally up, negative slopes go diagonally down, zero slopes go horizontally with no slant at all, and zero slopes go vertically with no slant at all.

Help me please answer both...........

Answers

Domain:2,3,4,5,6 and Range 0,1,2,3,4

Every autumn, the North American Monarch
butterfly migrates up to 3,000 miles to California and Mexico where it hibernates
until early spring. The butterfly travels on average 50 miles per day.

Answers

Part A

The equation is d = 50t

This is because the slope of 50 represents how many miles per day the butterflies cover (on average). The y intercept is 0 to indicate that 0 miles have been traveled initially.

You can think of this as the equation y = 50x

If t = 1, then d = 50t = 50*1 = 50 miles have been covered

If t = 2, then d = 50t = 50*2 = 100 miles have been covered

And so on.

==========================================================

Part B

You'll have these values in the bottom row (in the order presented): 50, 100, 150, 200, 250

You can plug in the values t = 1, t = 2, t = 3, t = 4 and t = 5 into d = 50t to find those answers in bold.

Or you could add on 50 each time to generate each new value. We start at 50 since t = 1 corresponds to d = 50.

==========================================================

Part C

You can keep the pattern of 50,100,150, ... going until you reach 2500. Then note the t value that pairs with d = 2500

In my opinion, that's the slower method.

The quicker method is to plug d = 2500 into the equation for part A, and then solve for t.

d = 50t

2500 = 50t

50t = 2500

50t/50 = 2500/50 ....... divide both sides by 50

t = 50

It will take 50 days for the average distance traveled to be 2500 miles.

Arya has 56 cards.
Each card has a shape on it.
Three times as many cards have red shapes than green shapes.
There are 8 more red triangles than red circles.
There are an equal number of green triangles than green circles.
There is one less green rectangle than green circle.
Circle
(a) Show this information on a frequency tree.
Red
Triangle
(b) Write down the ratio of red shapes to
green shapes.
(C) Write down the ratio of circles to triangles.
Rectangle
56
00 000
Green
Circle
(d) Write down the ratio of red circles to
green circles
Triangle
(6 marks)

Answers

Answer:

im a 100% sure the answer is

Step-by-step explanation:

I need the answer ASAP, please.​

Answers

Answer:

A. B. C

They surely share a proportional relationship

What statement are true about this expression 2/3n +58.6

A:2/3n represents a product
B:2/3 represents two terms
C:The number 58.6 is a coefficient
D:The expression has two terms


pleasee helppp!!

Answers

Step-by-step explanation:

perdon no entindo

14. True or False: Does a reflection
preserve congruence?

Answers

Answer:

False

Step-by-step explanation:

HELP!! Identify the transformation from ABC to A'B'C'.
1. Reflection over the y-axis
2. 90 degree rotation
3. 270 degree rotation
4. Reflection over the x-axis

Answers

Answer:

Thus, the transformation from ABC to A'B'C' is a reflection over the x-axis.

Choice 1.

Step-by-step explanation:

Reflection over the x-axis

Given a point A(x,y), a reflection over the x-axis maps A to the point A' with coordinates A'(x,-y).

The figure shows triangles ABC and A'B'C'. It can be clearly seen the x-coordinates for each vertex of both triangles is the same and the y-coordinate is the inverse of it counterpart. For example A=(5,3) and A'=(5,-3)

Thus, the transformation from ABC to A'B'C' is a reflection over the x-axis.

Choice 1.

How do I find the answer for the shaded region

Answers

First i would do 28 x 11 then i would do 18 x 5 then subtract the answer you got from 18 x 5 to the answer you got from 28 x 11 (so sorry my wording is bad)

You have recently taken out a loan for a new home. You place 10% down and finance the remaining balance. As part of the closing cost, you are required to pay 2.5 points. Determine the amount of the loan prior to the addition of the 2.5 points to the loan if the final loan amount was for $151,625. Round your answer to the nearest cent.

a.
$149,384.24
c.
$147,926.83
b.
$148,651.96
d.
$147,208.74

Answers

Answer:

C. $147,926.83

Step-by-step explanation:

simplify 21g - 8 - 20g + 6 By combining like terms
PLEASE 15 POINTS

Answers

Answer:

g-2

Step-by-step explanation:

Original expression: 21g-8-20g+6

Move like terms next to each other: 21g-20g-8+6

Simplify: g-2

Let me know if this helps!

Answer:

Step-by-step explanation:

Here you go mate

Step 1

21g - 8 - 20g + 6  Equation/Question

Step 2

21g - 8 - 20g + 6  Simplify

21g - 8 - 20g + 6

Step 3

21g - 8 - 20g + 6  Combine terms

(21g+-20g)+(-8+6)

Step 4

(21g+-20g)+(-8+6)  Add them

Answer

g-2

Hope this helps

write equations for a horizontal line and vertical line so that they intersect at the point ( -2, 5)

Answers

For horizontal line:

Y = 5

For vertical line:

X = -2

Drawing a straight line at these points, the lines will intersect at (-2, 5) in the 3rd quadrant of the the graph (bottom left)

Help again again thank you

Answers

I think the answer is B

15 is what percent of 40?
15 is
19% of 40.

Answers

Answer:

37.5

Step-by-step explanation:

5 is what percent of 40? = 37.5.

Find angle E and F please

Answers

Answer:D 120 degrees, F 60 degrees

Step-by-step explanation:

it is a parallelogram which means the 2 angles add up to 180 degrees. 5x+2x+12=180. Then solve, 7x=168, x=24. Then Substitute back into the angles. E is 5*24 which is 120. F is same as D which is 2x+12=60. Hope this helped

Answer:

Angle F = 60

Angle E = 120

Step-by-step explanation:

Angle E = Angle G whereas Angle D = Angle F

Angle D + Angle G = 180, Angle E + Angle F = 180

Angle D + Angle E + Angle F + Angle G = 360

In this case, it's Angle E and F. Keep in mind that Angle D is the same as Angle F so you can just do 5x + 2x+12 = 180.

Subtract 12 on both sides to get 168, so the equation is  5x + 2x = 168.

Add 5x and 2x to get 7x. Your final equation is 7x = 168

Divide 7 on both sides to get 24.

So x = 24

Now plug in x in for both angle equations so Angle F = 2(24) + 12 and you get 60.

For Angle E you plug in 5(24) and you get 120.

Convert each equation from standard form to slope-intercept form

4x + 6y = 48

Answers

Answer:

y=-2/3x+8

Step-by-step explanation:

please help (attachment shown below) for 50 pointz hurry

Answers

Answer:

I got C

Step-by-step explanation:

Answer:

2021

Step-by-step explanation:

2) 6p+ 4 = 4 - 2p
A) 2-3 B) 0
C) 9 D) -9


Anybody can help?

Answers

6p+2p=4-4
6p= 0
p = 0

Answer: B

Answer:

B) 0

Step-by-step explanation:

6p+ 4 = 4 - 2p

collect like terms leaving the unknown on the right hand side

6p +2p = 4 - 4

8p = 0

p = 0/8

p=0

the difference of 4 cubed and 25

Answers

Answer:

39

Step-by-step explanation:

4 cubed is 64 and 64-25 is 39

Good luck!

After solving the given expression, the value obtained for the difference between 4³ and 25 will be equal to 39.

What is an arithmetic operation?

The four basic mathematical operations are the addition, subtraction, multiplication, and division of two or even more integers.

Among them is the examination of integers, particularly the order of actions, which is crucial for all other mathematical topics, including algebra, data organization, and geometry.

As per the given statement in the question,

The difference between 4³ and 25 will be,

4³ = 64

Then,

64 - 25 = 39

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What is the slope of the function?
a) -10
b) -5
c) 5
d) 10

Answers

Answer:

-5

Step-by-step explanation:

I hope this helps the answer is -5 which is b

Work out the size of angle x

Answers

Answer:

70

Step-by-step explanation:

65+45=110

180-110=79

And all angles in a triangle add up to 180 degrees

Find the X- and y-intercepts of the graph of 8x + 4y = 16. State your answers as
whole numbers or as improper fractions in simplest form

Answers

Answer:

x-intercept: (2,0)

y-intercept: (0, -4)

Step-by-step explanation:

To find the x-intercept, substitute in 0 for y and solve for x. To find the y-intercept, substitute in 0 for x and solve for y.

find the total surface area of this cupoid 6cm 2cm 5cm

Answers

Answer: 60

Step-by-step explanation:

This is done by multiplying length x width x height (6x2x5)

is y=4 bounded below, above, neither or both​

Answers

Both i took the same question, hope this helps

find the value of a and b​

Answers

Step-by-step explanation:

2b=180-40

2b=140

b=70

a=180-90-70=20°

Find the area of the shaded region where s = 18. Round your answer to two decimal places.

Answers

Answer:

F

Step-by-step explanation:

17.38

On average, Tammy is able to read 2 chapters in her book each week. How many weeks will it take Tammy to read 5 1/2 chapters?

Answers

2 3/4 weeks because 2 a week then another week is 4 then add a 1/2 because it’s 5 then add a 4th because there’s another 1/2 so you get 2 and 3/4 weeks
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