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erica [24]
3 years ago
10

John runs at different speeds as part of his training program. the graph shows his target heart rate at different times during h

is workout. on which interval is the target heart rate strictly increasing then strictly decreasing

Mathematics
1 answer:
Firlakuza [10]3 years ago
4 0

Answer: B

Step-by-step explanation:

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Two questions
melamori03 [73]

Use PEMDAS method to execute operations in the following order:

  1. Parentheses
  2. Exponents
  3. Multiplication
  4. Division
  5. Addition
  6. Subtraction

First equation:

12 + (38 - 18)2 = 12 + 20 × 2 = 52

Second equation:

(12)2 - 6(2 - 23) = 24 - 6(-21) = 24 + 126 = 150

Hope this helps.

5 0
4 years ago
Which expression is equivalent to 8(x + 2)?
ratelena [41]
I believe it is C when you distribute: 8*x is 8x and 8*2 is 16
6 0
3 years ago
Read 2 more answers
Hi how do i do this please
EleoNora [17]

Answer:

160

Step-by-step explanation:

Rectangle = 10x15=150

Triangle = 1/2x5x4=10

150+10=160

8 0
3 years ago
Read 2 more answers
Find the volume of the 3-D solid shown below:
KonstantinChe [14]

Check the picture below.

so is really just a thick trapezoid, or namely a trapezoidal prism 5 inches thick.

so if we just get the area of the trapezoidal face and multiply by the thickness, we'd get it's volume

\bf \textit{area of a trapezoid}\\\\ A=\cfrac{h(a+b)}{2}~~ \begin{cases} a,b=\stackrel{parallel~sides}{bases}\\ h=height\\[-0.5em] \hrulefill\\ a = 8\\ b = 13\\ h = 6 \end{cases}\implies A=\cfrac{6(8+13)}{2}\implies A=63 \\\\\\ \stackrel{\textit{area of the trapezoidal prism}}{63\cdot 5\implies \stackrel{in^3}{315}}

5 0
3 years ago
Plzzz help!! (Show work)
kompoz [17]

Answer:

3. 273

4. 168

5. 189.25

Step-by-step explanation:

3. Triangle= .5 x 17 x 6 = 21

Rectangle= 18 x 14 = 252

252 + 21 = 273

4. Big rectangle (shaded)= 11 x18= 198

Small rectangle (right)= 5x4=20

Smaller rectangle (left)= 2x5=10

BR - (SR+SMR)

198-30=168

5. radius=5

Area of the circle= 25(pi)

Semi-circle= 39.25(not exact)

Rectangle= 10 x15=150

Rectangle + Semi-circle

150+39.25=189.25

3 0
3 years ago
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