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Gemiola [76]
3 years ago
14

Y varies directly with x, and y = 7 when x = 2. What is the value of x when y = 21?

Mathematics
1 answer:
Hoochie [10]3 years ago
3 0
16 the answer is 16 
7 is 5more than to see 2 plus 5 = 7 so 21 - 5 =16 GENIUS :3
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Total piston displacement is given by the following formula: TT P.D.ED?LN 4 Where P.D. = piston displacement, in cubic inches D
Ede4ka [16]

Answer: ≈ 1696460.03

Step-by-step explanation:

Formula:

P.D.=(\frac{\pi }{4})D^2LN ⇒ \left(\frac{\pi }{4}\right)400^2\cdot 4.5\cdot 6

Steps:

1. calculate pi and inset into equation

=0.785398(400^2)(4.5)(6)

2. calculate exponents

=(0.785398)(160000)(4.5)(6)

3 . multiply the rest

=(125663.706144)(4.5)(6)

=(565486.677646)(6)

4. divide by 2 to get the diameter

=\frac{3392920.065877}{2}

5. round to the nearest hundredth (2 decimal points)

= 1696460.032938 ≈ 1696460.03

Hope this helped!

7 0
2 years ago
Will mark the brainliest
Ivan

Answer:

C.

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Step-by-step explanation:

3 0
3 years ago
Capacity of coffee mug
Katarina [22]
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3 0
4 years ago
7560 in the ratio 4:5
Margarita [4]

Step-by-step explanation:

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3 0
3 years ago
If a =6 and b=8 and c=10 how do you solve using A2+b2=c2<br> A(square)+b(square)=c(square)
Korvikt [17]
The answer I think is 12+16=20
5 0
3 years ago
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