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3 years ago

Ann can swim 20 laps in 8 min. how long will it take to swim 9 laps? show your equations(s).

Mathematics

1 answer:

Volgvan3 years ago

6 0

Take 20 laps divide by 8 then take the number times 9 laps

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By what factor does the area change if one diagonal is doubled? Explain.

melisa1 [442]

The area of deltoid is defined by formula:

$A=\dfrac{e\cdot f}{2}$

Where e and f are diagonals.

If you were to double the size of either one. Let's say f. You would result with:

$A=\dfrac{e\cdot2f}{2}=e\cdot f$

Which means if either of diagonals double in length the area of deltoid will be twice as big as it was before.

Hope this helps.

r3t40

3 0

3 years ago

Read 2 more answers

Please help ASAP! It’s due in 20 min and I have complete it! I just need the statements and reasons! Thank you

azamat

Answer:

1) <11 and <14 are Same-Side Exterior Angles causing them to be supplementary.

2. <8 and <9 are Same-Side Interior Angles causing them to be supplementary.

Step-by-step explanation:

See answer above.

8 0

3 years ago

Find area of blue shaded region

RUDIKE [14]

Answer:

$\approx \: 7.33 \: {cm}^{2}$

Step-by-step explanation:

Area of the blue shaded region

$= \frac{ \theta}{360 \degree} \times \pi r_1^2 - \frac{ \theta}{360 \degree} \times \pi r_2^2 \\ \\ = \frac{ \pi\theta}{360 \degree} ( r_1^2 - r_2^2) \\ \\ ( r_1 = 4 \: cm, \: \: r_2 = 3\: cm, \: \: \theta = 120 \degree) \\ \\ = \frac{ 3.14 \times 120 \degree}{360 \degree} ( 4^2 - 3^2) \\ \\ = \frac{ 3.14 }{3} \times 7 \\ \\ = \frac{21.98}{3} \\ \\ = 7.32666667 \\ \\ \approx \: 7.33 \: {cm}^{2}$

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3 years ago

Of the 42 people who work at white side industries, 5/6 work in the manufacturing plant. How many people work in the manufacturi

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35 people.

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3 years ago

PLEASE HELP A.12.5 B.15.7 C.16 D.16.5

Mashutka [201]

60.7 because you add all the sides together

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3 years ago