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Monica [59]
3 years ago
10

PLEASE DO IT it is due in 5 minutes

Mathematics
2 answers:
Sliva [168]3 years ago
6 0
For A the answers are 42x-12 and 6•7x-6•2. For B the answers are 11y+10y and 21y. The work is in the attached picture

german3 years ago
4 0
A) 42x-12
6*7=42. 6*2=12
b) 21y
11+4+6=21
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Which graph correctly represents (5/2)x - y < 3?
Setler79 [48]

You can rewrite the inequality as

y > \cfrac{5}{2}\ x - 3

Note that

y = f(x) = \cfrac{5}{2}\ x - 3

is the equation of the line drawn in the pictures. This means that, for every point on the line, the y coordinate is exactly image of the x coordinate, i.e. f(x)

The inequality is satisfied by all points whose y coordinate exceeds the image of the x coordinate. Since the y axis is positively oriented upwards, a greater value for the y coordinate means that the point has to be higher than the line.

Also, since the equality inlves a > and not a \geq sign, the line itself is excluded.

So, the correct graph is the second one.

3 0
3 years ago
Read 2 more answers
Find the value of x in similar polygons below
muminat

Answer:

Choice A

Step-by-step explanation:

When you have two shapes that are similar their sides are always proportional. So all we have to do is set up a proportion.

\frac{18}{4.5}=\frac{x}{1.5}

Now we cross multiply and solve

27=4.5x\\x=6

And that's it x equals 6 feet.

4 0
3 years ago
Is 7 a factor of 14 yes or no ?
Alex73 [517]

Answer:

Yes

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Shakeela is planning to buy a pair of pants that have an original price of $51. The pants are on sale for 50% off and the sales
Mila [183]

Answer:

C) $25 + $1.25

Step-by-step explanation:

1.  51 x .5 = 25.5

2.  25.5 x .05 = 1.275

25 + 1.25  ≈  25.5 + 1.28

6 0
3 years ago
If a line perpendicular to 2y=x+5 that passes through (2,1) using the slope- intercept form
arlik [135]
Slope of  2y = x + 5:-
This is y = 0.5 x + 2.5  in slope intercept form so its slope = 0.5

Slope of the line perpendicular to it = -1 / 0.5 = -2

it passes through (2 , 1) so we have

y- 1 = -2(x - 2)
y = -2x + 4 + 1

The answer is y = -2x + 5

4 0
3 years ago
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