8.) which expression is which expression is equivalent to 2.5(4-1) + 4.5(-x-2)?

A.) -2x-11.5
B.) -2x + 11.5
C.) -7x - 11.5
d.) -7x + 11.5

Answers

Answer 1

Answer:

Its either A or B

Its not C or D

But if it was me i would pick B

Step-by-step explanation:


Related Questions

Carlos and his family left for the amusement park at 8:35 Ask Your Teacher The trip took 1 hour 55 minutes. What time did they arrive?

Answers

Answer:Carlos and his family arrived at 10:30

Step-by-step explanation:

The time Carlos and his family left for the amusement park =8:35

Since The trip took 1 hour 55 minutes., we have to add it to the time they left for  the amusement park to now the time they arrived

 8: 35  =8 hrs   35minutes

            1 hr      55 minutes

                           90  minutes

but 90minues is greater than 60 so we convert to hours and minutres by dividing by 60 giving us

90/60=1.5hrs=1hr 30mins

8¹ hrs   35minutes

1 hr      55 minutes

 10hrs  30  minutes

Therefore, They arrived at 10:30

What is the area of the trapezoid?Round to the nearest hundredth.

Answers

Answer:

The answer is 33.32

TWO points A and B on a plan represent two localities 12 m apart. Given that the segment AB is 6 cm long, find the scale used to draw the plan.

Answers

Answer:

The scale used to draw the plan is 1: 200.

Step-by-step explanation:

Given that two points A and B on a plan represent two localities 12 m apart, to determine, given that the segment AB is 6 cm long, the scale used to draw the plan, the following calculation must be performed:

12 m = 12 cm x 100 = 1200 cm

1200/6 = 200

Therefore, the scale used to draw the plan is 1: 200.

No links please or I’m reporting you

Answers

Answer:

quadrant  2   the last  option

Step-by-step explanation:

hope this helps!

Laurie is painting the walls of her kitchen. It took Laurie 3 hours to paint 20% of the walls in her kitchen. How many total hours did Laurie take to paint the walls of her kitchen?

Answers

Answer:

Total time taken by Laurie to cover all kitchen walls = 15 hours

Step-by-step explanation:

Given:

Time taken by Laurie to cover 20% of kitchen walls = 3 hours

Find:

Total time taken by Laurie to cover all kitchen walls

Computation:

Total time taken by Laurie to cover all kitchen walls = Time taken for 20%[100%/20%]

Total time taken by Laurie to cover all kitchen walls = 3[10/2]

Total time taken by Laurie to cover all kitchen walls = 3[5]

Total time taken by Laurie to cover all kitchen walls = 15 hours

solve for x PLEASE HURRY

Answers

Answer:

NAHHHHH G

Step-by-step explanation:

Answer:

x = 7

Step-by-step explanation:

5(14) = 10(x)

70 = 10(x)

x = 7

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

The class must raise at least 100$ to go on the field trip. They have collected 20$. Write an inequality to represent the amount of money (m) the class still needs to raise.

Answers

Answer: 20x < 100

subtract 20 from both sides

20 - 20 = 0

100 - 20 = 80

x < 80

Which of the following statements have the same result? Explain each step in solving each one.

I. f(2) when f(x) = 3x + 4
II. f−1(4) when f(x) = 3x - 4 over 5
III. 3y − 6 = y + 10

Answers

Answer:

1). 10  2). 8/5  3). 8

Step-by-step explanation:

I. f(2) = 3(2) + 4

= 6 + 4

= 10

II. f(4) = 3(4) - 4/5

= 12 - 4/5

= 8/5

III). 3y - 6 = y + 10

2y - 6 = 10

2y = 16

y = 8

Pleaseeee helpppppp please please pleaseeee someone

Answers

Answer:

10

Step-by-step explanation:

(5x - 16) = 34

x = 10

can i get some help? 30-60-90 triangle

Answers

Answer: 180 i think

Step-by-step explanation:

Answer:

28.28 or 28.3

Step-by-step explanation:

use desmos to help you, it's very helpful :)

Area of composite figures 8m 8m 8m

Answers

Have to find the area of square + area of sector + area of triangle.

Area of square = 8 x 8
= 64m^2

Area of sector = 22/7 x 8^2 x 90/360
= 50.3m^2

Area of triangle = 1/2 x 8 x 8
= 32m^2

Area of composite shape = 64 + 50.3 + 32 = 146.3m^2

im really stuck on this............

Answers

Answer:

H is the Answer

Step-by-step explanation:

Apply distance formula.

[tex](x {}^{2 } - {x}^{1} ) {}^{2} + ( {y}^{2} - {y}^{1} ) {}^{2} = d {}^{2} [/tex]

where d is the distance.

[tex]( - 5 - 7) {}^{2} + (0 - 5) {}^{2} = [/tex]

[tex] - 12 {}^{2} + - 5 {}^{2} = {d}^{2} [/tex]

[tex] \sqrt{169} = {d}^{2} [/tex]

[tex]d = 13[/tex]

Answer:

H, 13

Step-by-step explanation:

Distance formula:

[tex]\sqrt{(x_2-x_1)^2+(y_2-y_1)^2} \\\sqrt{(7-(-5))^2+(-5-0)^2}\\\sqrt{144+25}\\\sqrt{169}\\13[/tex]

real life example of point in geometry

Answers

Answer:

A location of a place in the Map. The tip of a needle.

Step-by-step explanation:

Definition, Example In geometry, a point is defined as an exact position or location on a plane surface. It is denoted by dot (.) Take a sharp pencil and make a dot on a paper. In the above image,the point is indicated as A. Needle is the best example where you can see the point in the top edge.

(No links I’ll report)

Pls help me I don’t have much time ~math ~ I’ll mark brainliest


A. Reflection, translation
B. Reflection, rotation
C. Translation, translation
) D. Rotation, translation

Answers

Answer:

A

Step-by-step explanation:

17) Evaluate D(4)
Please help

Answers

Answer:

D(4) = 6

Step-by-step explanation:

Using the blue graph, find the y value when x =4

the y value is 6 when x=4

D(4) = 6

y=3x +5
y=x+3
Graph the system. Then write its solution. Note that you can also answer "No solution" or "Infinitely many" solutions.

Answers

(-1,2) point form and x= - 1, y=2 equation form Good Luck

Sandy paid $27 for her new sweater. If the sweater was on sale for 25% off, what was the original price?​

Answers

Answer:

The answer is $36

Step-by-step explanation:

Took the Star Math Test

Answer:

$36

Step-by-step explanation:

100% - 25% = 75%

75% as a decimal = 0.75

75% = 27

75% as a decimal = 3/4

So 3/4 x = 27

27 x 4 = 108

108 / 4 = 36

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

What would be the surface area of the figure..

Answers

Answer:

          503 cm²

Step-by-step explanation:

The surface area of the figure is sum of areas of two triangles and three ractangles:

[tex]A=2\cdot\frac12\cdot10\cdot8,3+3\cdot10\cdot14=83+420=503\,cm^2[/tex]

Write the equation of a line that has a slope of 4 and goes through the point (1, -2)

Answers

Mark me as brainliest please! :)

The point-slope form of equation is
y
+
4
=
6

(
x

3
)
Explanation:
Point - Slope form of a linear equation is
(
y

y
1
)
=
m

(
x

x
1
)
Given : Slope
m
=
6
, Point
(
x
1
,
y
1
)
=
(
3
,

4
)
The point-slope form of equation is
y
+
4
=
6

(
x

3
)

Can someone plz help me find the vertex and the stretch factor

Answers

Answer:

(1,-25)

Step-by-step explanation:

I believe the answer is (1,-25) because when the function is graphed the vertex is at the point x=1 y=-25

5. Given AADL AAKM with AD = 14, DK = 21, and
AL= 15. What is the measure of LM?​

Answers

Answer:

22.5

Step-by-step explanation:

first of all, the first sign in the designations of the triangles is not an A. it is the Greek Delta (capital) sign. standing for "triangle" due to its shape.

as the diagram shows (and the description says correctly), ADL and AKM are similar triangles.

that means they have the same angles.

and in order to keep the same angles even when the lengths of the sides are different, the relative relation of the side lengths must be the same for all sides.

that means, if one side changes by a factor f, then both other sides must change by the same factor.

so, by checking the change factor for AD (to AK), we can then determine the change of AL to AM. and then we simply subtract AL from AM and get LM.

the original AD = 14.

AK = AD + DK = 14 + 21 = 35

the change factor f is then AK/AD = 35/14 = 5/2

in other words AD grew by a factor of 5/2.

AM is then created by applying the same factor to AL.

=> AM = 15 * 5 / 2 = 75 / 2 = 37.5

=> LM = AM - AL = 37.5 - 15 = 22.5

Step-by-step explanation:

intindihin nyo na lang.

Can someone help me pleaseeee!!!:(

Answers

Answer:

Step-by-step explanation:

math is a thing pls like this it was meaningful ;;;;;;;;;0

Answer:

Step-by-step explanation:

Nah

the circumcenter of AMNP, find each measure
A=
NE=
MD=

Answers

60% 30% 160% that’s for each one in order

please please help me!! i don’t know how to figure this out

Answers

Answer:

31.41592...

Step-by-step explanation:

If the radius of the circle is 10 inches, the circle's circumference is 31.4 because you calculate circumference as follows:

x = r * pi (3.1415926535)

Find the missing side or angle. Round to the nearest Tenth. B=45° a= 9 c= 19

Answers

Answer: b=14.1

Step-by-step explanation:

i just got it on acellus and it was correct

please help will be brainliest
[tex]3x + 2 > 11[/tex]

Answers

Answer:

x>3

Step-by-step explanation:


3x>11−2

2 Simplify
11

2
11−2 to
9
9.
3
x
>
9
3x>9

3 Divide both sides by
3
3.
x
>
9
3
x>
3
9



4 Simplify
9
3
3
9

to
3
3.
x
>
3
x>3
ANSWER - x>3

how to find compound intrest

Answers

Answer:

A = Accrued amount (principal + interest)

P = Principal amount.

r = Annual nominal interest rate as a decimal.

R = Annual nominal interest rate as a percent.

r = R/100.

n = number of compounding periods per unit of time.

t = time in decimal years; e.g., 6 months is calculated as 0.5 years

(THIS ANSWER IS NOT MINE BTW- CREDITS TO THE OWNER))

What number multiples to -12 and adds to 4 (factoring: diamond method)

Answers

Answer: - 2 and 6

Step-by-step explanation:

Answer:

6 and -2 multiply to -12 and adds to 4

Enter the value that belongs in the
green box.
60°
10
Х
30
у
sin 30º =
[?]

Answers

Answer:

10

Step-by-step explanation:

sin30° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{10}{x}[/tex]

A sample of 23 women athletes, aged 20 was taken. The systolic blood pressure of these women had an average of 112 with a standard deviation of 3.3. Calculate a 90% confidence interval for the average systolic blood pressure of 20-year old women athletes.

Answers

Answer:

Step-by-step explanation:

average of 112 with a standard deviation of 3.3. Calculate a 90% confidence interval for the average systolic blood pressure of 20-year old women athletes.

From the above question

Number of samples = 23 , less than 30,

Hence, we find confidence interval using t score

Confidence Interval using t score =

Mean + t score × standard deviation/√n

Step 1

We find the degree of freedom

= N - 1

= 23 - 1

= 22

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