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JulijaS [17]
3 years ago
5

Please work it out down below.

Mathematics
1 answer:
Anna35 [415]3 years ago
5 0

Answer:

16

Step-by-step explanation:

3 |a-b| +2|b-1|

a= -2 and b=-4

3 |-2--4| +2|-4-1|

3 |-2+4| +2|-4-1|

3 |2| +2|-5|

Absolute value means takes whatever is inside and make it positive

3*2 +2*5

6 +10

16

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** WILL GIVE 15 POINTS FOR THIS ONE QUESTION + BRAINLIEST **
densk [106]

Answer:

  x + 4y ≤ 15; y ≥ 0

Step-by-step explanation:

The graph doesn't do a very good job of modeling any of the given equations. However, the equations listed above seem the best fit.

The slope of the top (left) line is negative, so the equation will be of the form ...

  x + 4y = something

When y=0, x=15, so the "something" is expected to be 15.

However, the line appears to go through points (6, 2) and (-2, 4). Both of these points are on the line x + 4y = 14.

The graph is shaded <em>below the line</em> so the values of x and y that are in the shaded area will add to <em>less than</em> 15 (or 14). Hence, the inequality will be ...

  x + 4y ≤ something . . . . . part of the 3rd answer choice

The fact that the shading does not go below y=0 means the other limit is ...

  y ≥ 0 . . . . . part of every answer choice.

5 0
2 years ago
Reflect triangle ABC over the line x= -3.<br><br> What are the new coordinates?
alekssr [168]

Answer:

Step-by-step explanation:

We do not know the coordinates of triangle ABC, however, if the coordinates were (hypothetially) A (-2,0) B (-2,2) and C (-1,0) then we would flip triangle ABC over the line x=-3, point A would move 2 points horizontally to the left. Point B would move 2 points horizontally to the left. Point C, would move 4 points horizontally to the left. The Y coordinates would stay the same. Basically, instead of flipping it over the origin, you "move the origin" to whichever point you are told, they would function the same.

3 0
2 years ago
Q. Fine Floors can install 15 square yards of carpeting in 4 hours and 30 minutes. At this rate, how
creativ13 [48]

It takes 5.22 hours to install carpeting in a room

Step-by-step explanation:

At first lets find the relation between yard, feet and inch

1. 1 yard = 3 feet

2. 1 foot = 12 inches

3. 1 yard = 36 inches

Let us change all measures to inches

∵ 1 yard = 36 inches

∴ 1 yard² = (36)² inches²

-  Fine Floors can install 15 square yards of carpeting in 4 hours and

  30 minutes

∵ 15 yard² = 15 × (36)² inches²

∴ 15 yards² = 19440 inches²

∵ 1 hour = 60 minutes

∴ 30 minutes = 30/60 = 0.5 hour

∴ 4 hours and 30 minutes = 4.5 hours

∴ Fine Floors can install 19440 inches² in 4.5 hours

∵ The dimensions of the room are 11 feet 9 inches by 13 feet 4 inches

∵ 1 foot = 12 inches

∴ 11 feet 9 inches = 11 × 12 + 9 = 141 inches

∴ 13 feet 4 inches = 13 × 12 + 4 = 160 inches

∴ The area of the room = 141 × 160 = 22560 inches²

Now lets use the ratio method to answer the question

⇒ area of carpeting (in²)      :      time of carpeting (hr)

⇒ 19440                                :      4.5

⇒ 22560                               :      h

By using cross multiplication

∴ 19440 h = 4.5 × 22560

∴ 19440 h = 101520

- Divide both sides by 19440

∴ h = 5.22 hrs

It takes 5.22 hours to install carpeting in a room

Learn more:

You can learn more about the rate in brainly.com/question/13053630

#LearnwithBrainly

8 0
3 years ago
Read 2 more answers
Graph f(x) = (1/3)^x+1<br>​
e-lub [12.9K]

Answer:

The graph is attached below.

Step-by-step explanation:

Given the function

f\left(x\right)\:=\:\left(1/3\right)^x+1

Exponentiation function have a horizontal Asymptotes.

<u />

<u>Finding the horizontal Asymptotes</u>

<u />\mathrm{Exponential\:function\:of\:the\:form}\:f\left(x\right)\:=c\cdot \:n^{ax+b}+k\:<u />

<u />\mathrm{has\:a\:horizontal\:asymptote}\:y=k\:<u />

<u />k=1<u />

<u />\mathrm{The\:horizontal\:asymptote\:is:}<u />

<u />y=1<u />

<u />

<u>Finding y-intercepts</u>

<u />y\mathrm{-intercept\:is\:the\:point\:on\:the\:graph\:where\:}x=0<u />

<u />y=\left(\frac{1}{3}\right)^0+1<u />

<u />\mathrm{Apply\:rule}\:a^0=1,\:a\ne \:0<u />

<u />\left(\frac{1}{3}\right)^0=1<u />

<u />y=1+1<u />

<u />\mathrm{Add\:the\:numbers:}\:1+1=2<u />

<u />y=2<u />

\mathrm{Y\:Intercepts}:\:\left(0,\:2\right)

The graph is attached below.

4 0
2 years ago
Find the value f(x)=20(0.5)↑x f(3)=[?]
kaheart [24]

f(3) = 20{(.5)}^{3} \\ f(3) = 20(.125) \\ f(3) = 2.5
3 0
3 years ago
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