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3 years ago

Can you guys. help me up pliz

Mathematics

2 answers:

Sonja [21]3 years ago

7 0

All you have to do is change the cups to gallons And then how ever many gallons it cost u mutiple that buy the cost per gallon (3.12) hope this helps

Y_Kistochka [10]3 years ago

3 0

We already know that 1 cup= 0.0625 gallon.

100 cups of gas* (0.0625 gallon of gas/ 1 cup of gas)= 6.25 gallons of gas.

6.25 gallons of gas* ($3.12/ 1 gallon of gas)= $19.50.

The gas cost $19.50~

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Suppose you throw a dart at a circular target of radius 10 inches. Assuming that you hit the target and that the coordinates of

sukhopar [10]

Answer:

a) The probability is 0.04

b) The probability is 0.36

c) The pprobability is 0,25

d) The probability is 0.09

Step-by-step explanation:

Lets calculate areas:

the target has a radius of 10 inces, hence the target area has a area on 10²*π = 100π square inches.

a) A circle of 2 inches of radius has an area of 2²π = 4π square inches, hence the probability of hitting that area is 4π/100π = 1/25 = 0.04

b) If the dart s within 2 inches of the rim, then it is not at distance 8 inches from the center (that is the complementary event). The probability for the dart to be at 8 inches of the center is 8²π/100π = 64/100 = 16/25 = 0.64, thus, the probability that the dart is at distance 2 or less from the rim is 1-0.64 = 0.36.

c) The first quadrant has an area exactly 4 times smaller than the area of the target (each quadrant has equal area), thus the probability for the dart to fall there is 1/4 = 0.25

d) If the dart is within 2 inches from the rim (which has probability 0.36 as we previously computed), then it will be equally likely for the dart to be in either of the 4 quadrants (the area that is within 2 inches from the rim forms a ring and it has equal area restricted on each quadrant). Therefore, the probability for the dice to be in the first qudrant and within 2 inches from the rim is 0.36*1/4 = 0.09.

6 0

3 years ago

13. Find the equations of the straight lines which passes

ipn [44]

9514 1404 393

Answer:

y = 1/2x +2
y = -2x +7

Step-by-step explanation:

The slope of a line is the tangent of the angle it makes with the x-axis. The given line has a slope of -1/3, so the lines we want will have slopes of ...

m1 = tan(arctan(-1/3) +45°) = 0.5 . . . . . using a calculator

m2 = tan(arctan(-1/3) -45°) = -2

Of course, these two lines are perpendicular to each other, so their slopes will have a product of -1: (0.5)(-2) = -1.

We can use the point-slope form of the equation for a line to write the desired equations:

y = m(x -h) +k . . . . . line with slope m through point (h, k)

<u>Line 1</u>:

y = 1/2(x -2) +3

y = 1/2x +2

<u>Line 2</u>:

y = -2(x -2) +3

y = -2x +7

3 0

2 years ago

6 x 10 5 is how many times the value of 3 x 10 (Hint: Write your answer in standard form.)

JulijaS [17]

Answer:

0.000036

Explanation:

When multiplying a number by 10 to the power of a positive exponent (e.g.

), move the decimal in the number that many spaces to the right (e.g.

4.5

⋅

4500

When multiplying a number by 10 to the power of a negative exponent (e.g.

−

), move the decimal in the number (the absolute value of) that many spaces to the left (e.g.

4.5

⋅

−

0.00045

For

3.6

⋅

−

, move the decimal five spaces to the left:

0.000036

Step-by-step explanation:

5 0

2 years ago

3 .912+s=5.313 evaluate

taurus [48]

Answer:

s= 1.401

Subtract 5.313 from 3.912 :D

3 0

2 years ago

Tom needs to drive 21 miles to work. So far, he has driven 2.2 miles. How many more miles must he drive?

wolverine [178]

Tom needs to drive 18.8 more miles

4 0

2 years ago

Read 2 more answers