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sleet_krkn [62]
3 years ago
13

I need help pls ? i really need it

Mathematics
1 answer:
Oxana [17]3 years ago
6 0

Answer:

your answer would be 2 7/10

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Y=10m+2 plotted on a graph.
musickatia [10]
The first point would be at (0,2). Then you would have to go up 10 units, and then 1 to the right. When there is no no space to graph, you extend downwards from (0,2). So you would go down 10 units, and to the left 1 unit.
4 0
3 years ago
An equation has solutions of m = –5 and m = 9. Which could be the equation? (m + 5)(m – 9) = 0 (m – 5)(m + 9) = 0 m2 – 5m + 9 =
Colt1911 [192]
The answer is the first choice (m+5)(m-9)=0
8 0
4 years ago
Read 2 more answers
A rectangular lawn, 100 feet long by 50 feet wide, is to have two sidewalks installed that will cut the lawn in half both ways,
Damm [24]

Answer:

3.41 feet

Step-by-step explanation:

Area = Length × Breath

Area of the rectangular lawn = 100 × 50

                                                = 5000 feet²

The sidewalk must occupy an area no more than 10% of the total lawn area.

So, the area of the sidewalk would be not more than  = 10% × 5000

                                                                                         = 0.10 × 5000

                                                                                        = 500 feet²

Let the width of the sidewalk = x feet

area of the side walk = (L×W of the long way) + ((L-x)×W of the short way)

(100 × x) + ((50 - x) × x) < 500

100x + (50-x)(x) < 500

-x²  + 150x < 500

-x² + 150x = 500

-x² + 150x - 500 = 0

By using quadratic formula

x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}

x=\frac{(-150)\pm\sqrt{(150)^2-4(-1)(-500)} }{2(-1)}

x=\frac{-150\pm \sqrt{20500} }{-2}

x=75-5\sqrt{205} or x=75+5\sqrt{205}

x = 3.41089 ≈ 3.41 feet  or  x = 146.58

Therefore, width of the sidewalk would be 3.41 feet.

5 0
3 years ago
A train on a straight track goes in the positive direction for 6.7 km , and then backs up for 4.0 km . Is the distance covered b
RSB [31]

Answer:

Distance is greater than the displacement.

Step-by-step explanation:

We are given that a train on a straight track goes in the positive direction.

We have to find that distance covered by the train is greater than, lees than or equal to its displacement.

Train covered distance in positive direction=6.7 km

Train covered distance in back=4.0 km

Distance covered by the train=6.7+4=10.7 Km

Because distance is the length of path covered by object.

Displacement =Final position -Initial position

Displacement =6.7-4=2.7 km

        10.7 > 2.7

Distance > Displacement

Hence, Distance is greater than the displacement.

7 0
3 years ago
How do you convert a fraction to a decimal?​
Volgvan

Answer:

To convert fractions to decimals you just divide the top by the bottom — divide the numerator by the denominator — and if the division doesn’t come out evenly, you can stop after a certain number of decimal places and round off. To convert fractions to decimals: If the fraction is a mixed number, change it to an improper fraction.

7 0
3 years ago
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