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Oliga [24]
3 years ago
13

RATIONAL NUMBER halfway between 3/4 and 7/8

Mathematics
1 answer:
Lerok [7]3 years ago
6 0
3/4= 12/16
7/8= 14/16
12/16, 13/16, 14/16
Hence, the rational number between 3/4 and 7/8 is 13/16.
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-5 = 1 / 3 ( -1 - w )<br> plz help with step by step answer
sweet [91]

Step-by-step explanation:

- 5 =  \frac{1}{3} ( - 1 - w) \\  \frac{1}{3} ( - 1 - w) =  - 5 \\   - 1 - w =  - 5 \div    \frac{1}{3}  \\  - 1 - w =  - 5 \times 3 \\  - 1 - w =  - 15 \\  - w =  - 15 + 1 \\   - w =  - 14 \\ w = 14

4 0
3 years ago
A spiral staircase turns $270^\circ$ as it rises 10 feet. The radius of the staircase is 3 feet. What is the number of feet in t
Anastaziya [24]

The number of feet in the length of the handrail is 17.3 ft.

The easiest way to see this is to imagine that we can "unfold" the spiral to create a rectangle

The bottom side of the rectangle is just the arc length of a circle with a radius of 3 ft  turned through 270°= (3/4) of a whole revolution

(3/4) (2pi) (3)  =  (9/2)pi ft =   4.5 pi ft

The side of the rectangle will be the rise of the staircase = 10ft

And the diagonal of the rectangle will be the length of the handrail

We can use the Pythagorean Theorem to solve this

Handrail length = √ [ (4.5 pi)^2 + 10^2 ]  ≈  17.3 ft

Pythagorean theorem is the well-known geometric theorem that the sum of the squares on the legs of a right triangle is equal to the square on the hypotenuse.

Learn more about the Pythagorean theorem here: brainly.com/question/343682

#SPJ4

3 0
1 year ago
A roll of 100 pennies is in the shape of a right cylinder. Each penny has a diameter of 0.75 inches and a thickness of 0.04 inch
zalisa [80]

Answer:

  • (B) π(0.75/2)²(4)

Step-by-step explanation:

<u>The volume formula:</u>

  • V = πr²h

<u>Given:</u>

  • d = 0.75 in ⇒ r = d/2 = 0.75/2 in
  • h = 0.04 in

<u>The volume of each penny:</u>

  • V = π(0.75/2)²(0.04)

<u>The volume of 100 pennies:</u>

  • V = 100*π(0.75/2)²(0.04) = π(0.75/2)²(4)

Correct choice is B

6 0
3 years ago
Read 2 more answers
HELP! This needs to be answered ASAP!
andriy [413]

Answer:

it will take 4 hours( I'm not so sure)

Step-by-step explanation:

$25x $15

------- = ------------- + 75

1h. 1h

25x = 100

x =100/25

x = 4

8 0
2 years ago
Linear or nonlinear​
Wittaler [7]

Answer:

Linear

Step-by-step explanation:

It increases by a steady rate, so it is linear.

5 0
3 years ago
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