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3 years ago

The graph represents a person’s heart rate in beats per minute during 30 minutes of exercise.

Mathematics

2 answers:

Ronch [10]3 years ago

8 0

Answer:

The Answer is C: The heart rate increases for 6 minutes, remains constant for 19 minutes, and then gradually decreases for 5 minutes. :)

Juliette [100K]3 years ago

4 0

GOOD

LUCK

CHUCK

:))))))))

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Use graph paper to draw the figure. The set of points (2, 3), (9, 3), (9, –2), and (2, –2) identifies the vertices of a quadrila

Vedmedyk [2.9K]

It's for sure not a parallelogram and it's not a trapezoid it's either going to be a square a rectangle I'm drawing it on paper I'm going to go with a square

6 0

3 years ago

John rides his bike with a constant speed of 20 km/h. How far can he travel in 2 1/2 hours?

Olegator [25]

Ok so,

20*2= 40

20*1/2=10

40+10=50

So Johncan travel 50 km in 2 1/2 hours.

Hope this helps :)

4 0

2 years ago

Evaluate 2-(-4)+(-y) where y = 7

Levart [38]

2+4=6
6+-7=-1
Your answer would be negative 1 or -1

7 0

2 years ago

Read 2 more answers

Sec theta - Csc theta / (csc theta)(sec theta)

Sophie [7]

Answer:

sin(x)-cos(x)

Step-by-step explanation:

$\frac{\frac{1}{cos(x)} - \frac{1}{sin(x)} }{\frac{1}{sin(x)} * \frac{1}{cos(x)} }$

Simplify the denominator:

$\frac{\frac{1}{cos(x)} - \frac{1}{sin(x)} }{\frac{1}{cos(x)sin(x)} }$

Simplify the numerator:

$\frac{{\frac{2(sin(x)-cos(x))}{sin(2x)} } }{\frac{1}{sin(x)} * \frac{1}{cos(x)} }$

Divide the fractions: <u>(a/b)/(c/d) = (a * d)/(b * c)</u>:

$\frac{(-cos(x)+sin(x))*2cos(x)sin(x)}{sin(2x)}$

Use the identity: <u>2cos(x)sin(x) = sin(2x):</u>

$\frac{sin(2x)(-cos(x)+sin(x))}{sin(2x)}$

Cancel out the common factor (sin(2x)):

-cos(x) + sin(x)

Simplify:

sin(x) - cos(x)

3 0

2 years ago

Read 2 more answers

The greatest common factor of 30.48.60

Elena-2011 [213]

30= 3*10
30= 3*2*5

48= 12*4
48= 3*4*4
48= 3*2*2*2*2

60= 3*20
60= 3*10*2
60= 3*2*5*2

The GCF is 3*2 because all 3 numbers contain a 3 and a 2 in their prime factorizations.

Final answer: 6

6 0

2 years ago