I need help solving these problems

Justify 2.010010001.....is an irrational number

ser-zykov [4K]

No its rational....................

8 0

4 years ago

Marshall charges $22.00 per hour to cut yards in his neighborhood. Use the ratio of Marshall’s hours worked to the amount earned

Leni [432]

If there are $22 made per hour for 7 hours, you’d add 22 per hour in your table. 1 hour=$22, 2 hours=$44, 3 hours=$66, and so forth. make a table of these numbers up to 7 hours.

4 0

3 years ago

Read 2 more answers

A stone is thrown straight up from earth with D(t)= -4.9 t^2 + vt where D = height in meters, t= time in seconds, and v= initial

Vedmedyk [2.9K]

Answer:

(a) D(t)= -4.9 t^2 + vt

(b) 10 sec

(c) 122.5m

(d) At t= 4sec, v= 9.8m/s (upwards) and at t= 9sec, v= 39.2m/s (downwards)

(e) -24.5m

(f) -49m/s (i.e. downwards)

(g) 0

Step-by-step explanation:

(b) Time in the air = 2v/g = 10sec

(c) Maximum height = $\frac{v^{2} }{2g}$ =122.5m

(d) Velocity at any time t = v -9.8t

So, at t= 4sec, velocity = 49 – 9.8(4) =9.8m/s

at t= 9sec, velocity = 49 – 9.8(9) = -39.2m/s

(e) Average velocity = $\frac{\int\limits^9_4 {v-9.8t} \, dt }{\int\limits^9_4 {1} \, dt }$ = -24.5m

(g) the stone is thrown vertically upwards, so no horizontal distance covered.

7 0

3 years ago

there are 6 flavors of candy in a bag strawberry lime lemon cherry or grape what is the probabilty of selecting blueberry

Furkat [3]

Number of strawberry = 1

Number of Lime = 1

Number of Lemon = 1

Number of Cherry = 1

Number of Blueberry = 1

Total number of candies = 1 +1 + 1 +1 +1 +1 =6

favourable outcome = 1

P(of selecting blueberry ) = $\frac{Number of Blueberry }{Total number of candies}$

P(of selecting blueberry) = $\frac{1}{6}$

P(of selecting blueberry) = 0.1666

P(of selecting blueberry) = 0.17

5 0

3 years ago

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$22 skateboard; 25% discount

Mkey [24]

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▹ Answer

▹ Step-by-Step Explanation

If you are trying to find the new price, we will deduct 25% from the original cost of $22.

To figure this out, you can multiply 0.25 * 22.

From there, you will get $5.50. This means there will be a $5.50 discount applied. To find the new cost, we will now subtract.

$22 - $5.50 = $16.50

The new cost of the skateboard is $16.50.

Hope this helps!

CloutAnswers ❁

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3 0

3 years ago