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dolphi86 [110]
3 years ago
5

Four runners start at the same point; Lin, Elena, Diego, Andre. For each runner write a multiplication equation that describes t

heir journey.
Lin runs for 25 seconds at 8.2 meters per second. What is her finish point?

Elena runs for 28 seconds and finishes at 250 meters. What is her velocity?

Diego runs for 32 seconds at -8.1 meters per second. What is his finish point?

Andre runs for 35 seconds and finishes at -285 meters. What is his velocity?
Mathematics
1 answer:
Helen [10]3 years ago
6 0

Answers:

Lin's finish point is at 205 meters

Elena's velocity is 8.92 meters per second

Diego's finish point is at -259.2 meters or 259 meters behind the start

Andre's velocity is -8.14 meters per second

I hope this helps <3

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Can you please answer this question
tamaranim1 [39]
3tan^{2} \theta +7sec\theta=3
First I converted the equation terms into sine and cosine.
tan^{2}\theta = \frac{sin^{2}\theta}{cos^{2}\theta} and sec\theta= \frac{1}{cos\theta}
Substitution:
\frac{3sin^2\theta}{cos^2\theta} + \frac{7}{cos\theta} =3
Common Denominator Created:
\frac{3sin^2\theta}{cos^2\theta} + \frac{7cos\theta}{cos^2\theta} =3
Multiply each term by the LCD:
3sin^2\theta+7cos\theta=3cos^2\theta
Substitution: Recall ⇒sin^2\theta =1-cos^2\theta 
3(1-cos^2\theta)+7cos\theta=3cos^2\theta
Distribute and collect all terms on one side:
6cos^2\theta-7cos\theta-3=0
Factor and set each factor equal to 0:
(2cos\theta-3)(3cos\theta+1)=0
2cos\theta-3=0⇒theta=cos^{-1} \frac{3}{2}
3cos\theta+1=0⇒theta=cos^{-1} \frac{-1}{3}
The 2nd factor provides only possible answer 109.5 degrees

4 0
3 years ago
Pls solve this!!!!! Points!!!!!!!
Alex_Xolod [135]

Answer:

1

Step-by-step explanation:

Given that both equations are equal, solve the distributive property and then just solve for X:

2x + 2(3x-1) = 3(x+1)
2x + 6x - 2 = 3x + 3
5x = 5
x = 1

Therefore, the value of X is 1.

To know the perimeter of the triangle, we apply the value of X to solve the equation.
3(x + 1)
3(1 + 1)
3 + 3 = 6.

Therefore, each figure's perimeter is 6, as both are equal.

3 0
3 years ago
Isabel is riding on a bike course that is 36 miles long. So far , she has ridden 9 miles of the course. What Percentage of the c
Margaret [11]
This is one fourth of the course, so 25%.
4 0
3 years ago
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Anthony has $11,600 in his account and earns $700 per month. He spends $8,000 on a car and has other expenses totaling $900 per
ExtremeBDS [4]

Answer:

216 Months

Step-by-step explanation:

First find how much money he looses per month: 0+700-8000= -7300 on the first month. So 11600-7300=4300.

Then, he starts loosing $200 dollars per month because 900-700=200.

So 4300/20=215. So 215+1=216 months before Anthony runs out of money.

7 0
3 years ago
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Jessica received a 90$ gift card for a coffee store. She used it in buying some coffee that cost 8.58per pound. After buying the
irga5000 [103]

Answer:

5 pounds / Make sure to read the explanation so you know how to solve it

Step-by-step explanation:

First thing to do is:

Subtract 90 by 47.10 to find the amount of money she spent

90 - 47.10 = 42.90

She spent $42.90 on coffee and we know that it costs $8.58 per pound so that means that we should divide 42.90 by the cost per pound:

42.90 / 8.58 = 5

She bought 5 pounds of coffee

Hope I helped :]

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3 years ago
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