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2 years ago

Please Help I really need the answer!!!

Mathematics

1 answer:

telo118 [61]2 years ago

4 0

If his heart rate slows down then he needs to continue doing what he's doing to keep his heart rate steady

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What is -7k-9=8k-129

Leokris [45]

Answer:

k = 8

Step-by-step explanation:

-7k - 9 = 8k - 129

-7k - 8k = -129 + 9

-15k = -120

k = -120/-15

k = 8

7 0

3 years ago

Solve the equation,<br> m + 55 +1 = m<br> =

Vera_Pavlovna [14]

Steps to solve:

m + 55 + 1 = m

~Simplify

m + 56 = m

~Subtract m to both sides

56 = 0

No solution

Best of Luck!

5 0

2 years ago

What is 69/25 as a terminating decimal

Dennis_Churaev [7]

69/25 = 276/100 = 2.76

7 0

2 years ago

Twenty toothpicks, each 6 cm long, form a figure consisting of six equilateral triangles and a rectangle as shown. What is the t

Roman55 [17]

The total area of the figure is 139.20 square centimeters

Areas

The area of a shape is the amount of space it occupies

<h3>Composite figure</h3>

The figure (see attachment) is a composite figure, and the total area is the sum of the areas of each shape that makes up the complete figure

The shape has 6 equilateral triangles, each of which has an area of:

$A_1 = \sqrt{\frac{3s^2}{4}}$

Where:

$s = 6$ --- the length of each toothpick

The area of the rectangle is then represented as:

$A_2 =3s \times s$

$A_2 =3s^2$

So, the total area of the figure is:

$Total = 6A_1 + A_2$

This gives

$Total =6 \times \sqrt{\frac{3s^2}{4}} + 3s^2$

Substitute 6 for s

$Total =6 \times \sqrt{\frac{3(6)^2}{4}} + 3(6)^2$

$Total =6 \times \sqrt{27} + 108$

$Total =6 \times 5.20+ 108$

$Total =139.20$

Hence, the total area of the figure is 139.20 square centimeters