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3 years ago

Please help. will give brainliest (100 points)

Mathematics

2 answers:

san4es73 [151]3 years ago

3 0

Answer:

The FitnessGram PACER Test is a multistage aerobic capacity test that progressively gets more difficult as it continues. The test is used to measure a student's aerobic capacity as part of the FitnessGram assessment. Students run back and forth as many times as they can, each lap signaled by a beep soundtion:

yanalaym [24]3 years ago

3 0

Assuming the point A has coordinates (2,3) and the center of dilation is the origin.

Then the image of point A under a dilation of scale factor of 4 is (4∗2,4∗3)=(8,12)(4*2,4*3)=(8,12)(4∗2,4∗3)=(8,12)

Hence A(2,3)→A′(8,12)A(2,3)\to A'(8,12)A(2,3)→A

′

(8,12)

In general the rule for a dilation of scale factor of k is (x,y)→(kx,ky)(x,y)\to(kx,ky)(x,y)→(kx,ky)

please mark me as brainliest

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What is the area of this triangle? h = 5 in. b =10 in.

Tcecarenko [31]

Answer:

25 in²

Step-by-step explanation:

A = $\frac{1}{2}$ hb = $\frac{1}{2}$ × 5 × 10 = 25 in²

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3 years ago

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A particular curve is represented parametrically by x=cost, y=−sint, t∈[0,2π]. (a) As t increases on [0,2π], in which direction

cestrela7 [59]

Answer:

a) clockwise sense

b) x² + y² = 1

c) y ∈ [0,1]

Step-by-step explanation:

a) x = cos (t) y = -sin (t)

for t ∈ [ 0 , 2π ]

for t = 0 point P is x = cos (0) = 1 y = -sin (0) y = 0

The point is on the x axis

Now let´s see what happens for t = π/4

x = cos (π/4) x = √2/2 and y = - sin (π/4) y = - √2/2

Note π/4 is 45°

The coordinates of the new point P ´(t = π/4) are in the fourth quadrant

that means the point is moving clockwise sense.

b) x = cos(t)

y = -sin(t)

Squaring on both sides of each equation we get:

x² = cos²t

y² = sin²(t)

Adding side by side

x² + y² = cos²t + sin²t

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3 years ago

While driving on the highway, Dave averages 60 miles per hour. In the city, he averages 30 miles per hour. On a trip to his gran

olga2289 [7]

I suppose you want to know the distance to grandmother's house....

(2 3/5)60+(1 1/5)30

(13/5)60+(6/5)30

780/5+180/5

960/5

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kati45 [8]

0.03 compare to 0.003

While comparing decimals we write the decimals one below the other according to the place value of each digits in place value chart

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4 years ago

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