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3 years ago

V=Xf; speed = wavelength x frequency

1 answer:

4 0

I don’t understand your questions because it’s all connected together. Could you maybe separate the actual question in the comments for me to help?

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Order the numbers from least to greatest. 8, 0, -8, -3, 5

Kitty [74]

Answer:

-8,-3,0,5,8

Step-by-step explanation:

Number the the negatives from greatest to least first and continue to number the positives from least to greatest.

7 0

4 years ago

At 6:00 AM there where 400 gallons of water in the pool.At 11:00 AM there were 2400 gallons of water in the pool. What is the ra

kirza4 [7]

Answer:

The rate of change of water in the pool is 400 gallons / hour

Step-by-step explanation:

We are given

At 6:00 AM:

there were 400 gallons of water in the pool

so,

$N_1=400$

At 11:00 AM:

there were 2400 gallons of water in the pool

so,

$N_2=2400$

now, we can find time between

t=11-6=5 hours

now, we can use formula

rate of change of water in pool is

=( change in water quantity)/( total time)

so, we get

$=\frac{N_2-N_1}{t}$

now, we can plug values

$=\frac{2400-400}{5}$

$=\frac{2000}{5}$

$=400$

So,

The rate of change of water in the pool is 400 gallons / hour

4 0

3 years ago

A Family spent a total of $73.75 on movie tickets and snacks. Each ticket cost $12.50, and each snack cost $4.75. If the family

kkurt [141]

Answer:

4 Tickets and 5 Snacks

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

The area of shaded region.

Korvikt [17]

Answer:

160π cm²

Step-by-step explanation:

The area of the shaded region is

area of outer circle - area of inner circle

A = πr₁² - πr₂²

r₁ is the radius of the outer circle = 10 + 3 = 13 cm

r₂ is the radius of the inner circle = 3 cm

A = π × 13² - π × 3²

= π(169 - 9) = 160π cm² ≈ 502.65 cm² ( to 2 dec. places )

5 0

3 years ago

Read 2 more answers

Factorise a)2x+8 b)3x-12 c)6x+4 d) 18x-9

uranmaximum [27]

I think it can help you.

6 0

3 years ago