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dmitriy555 [2]
3 years ago
7

1) Point O is between points A and B, find AB =? Draw.

Mathematics
1 answer:
raketka [301]3 years ago
7 0

Answer:

c

Step-by-step explanation:

x+3+2x-1=AB

x+3+2x-1=x+14

3x+2=x+14

2x=12

x=6

6+14=20

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In a 45-45-90 right triangle, what is the ratio of the length of one leg to the
Mnenie [13.5K]

Answer:

D) 1 : 1

Step-by-step explanation:

Since it's 45-45-90 right triangle, it's an isosceles right triangle. An isosceles right triangle is a triangle that has two legs of equal length. So the ratio of the length of one leg to the  length of the other leg is 1 : 1

8 0
3 years ago
A contractor needs to buy grass seed to cover a lawn. The dimension of the llama song below. One bag of grass seed cover isn’t i
DedPeter [7]

The minimum number of bags of seed the contractor needs to buy the to cover the entire lawn is 4

<h3>How to determine the number of bags</h3>

Start by calculating the area of the entire field using:

Area = Length * Width --- area of square

So, we have:

Area = (18 + 54 + 18)* 28

Area = 2520

Next calculate the area of the porch using:

Area = 0.5 * (L1 + L2) * H -- area of trapezium

So, we have:

Area = 0.5 * (54+ (54 + 18 + 18 - 14 - 14)) * 10

Area = 580

The difference between the areas of the entire field and porch is the area of the lawn.

So, we have:

Lawn= 2520 - 580

Lawn= 1940

The above means that, the area of the lawn is 1940 square yards

If one bag of grass covers 600 square yards, then the number of bags that can cover 1940 square yards is:

n =\frac{1940}{600}

n =3.23

Round to the next highest integer

n =4

Hence, the minimum number of bags of seed is 4 bags

Read more about areas at:

brainly.com/question/18019422

4 0
3 years ago
A store pays $ 56 for a cell phone. The store marks the price at 20%. What is the quantity of the mark?
galben [10]

Answer:

The quantity of the mark is $11.20

Step-by-step explanation:

Given that:

Amount paid by store for cell phone = $56

The store marks the price at 20%.

Quantity of the mark = 20% of 56

Quantity of the mark = \frac{20}{100}*56

Quantity of the mark = 0.2 * 56

Quantity of the mark = $11.20

Hence,

The quantity of the mark is $11.20

4 0
3 years ago
The amount of fuel in a tractor's fuel tank is changing according to the equation y=−3x+40 , where x = time in hours and y = amo
Alenkasestr [34]

Answer:

The rate of change is "-3". Which means the rate at which the tractor uses fuel.

Step-by-step explanation:

The equation describes a line and any line follows the equation:

y = m*x + c

Where "m" is the rate of change and "c" is the shift on the line. Comparing the equation for the fuel and the equation from the line, the rate of change must be "-3". The rate of change in this context describes the speed at which the tractor uses fuel, at a rate of 3 gallons per hour.

7 0
3 years ago
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Alecsey [184]

Answer:

The perimeter of the triangle is G) Units

6 0
3 years ago
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