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2 years ago

Round 56.4789 to the nearest thousandth

Mathematics

2 answers:

kow [346]2 years ago

6 0

56.479 would be the answer the 8 is in the thousandth place and 9 is behind it 9 is over 5 so you round up

kap26 [50]2 years ago

4 0

Bud, it will be 56.479

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An airplane flies 56 miles due north and then 33 miles due east. How many miles is the

choli [55]

Answer:

65 miles

Step-by-step explanation:

using the Pythagorean theorem:

56²+ 33² = d²

d² = 4225

d = 65 miles

8 0

2 years ago

Are these two correct

SOVA2 [1]

When it's negative the bigger number is smaller for example -7 is less than -2 or -2 is greater than -7. so they r wrong.

8 0

2 years ago

The average (arithmetic mean) of y numbers is x. If 30 is added to the set of numbers, then the average will be x − 5. What is t

Alenkasestr [34]

Answer:

y = $\frac{1}{5}(x^{2}-35x)$

Step-by-step explanation:

Let the total numbers are n.

If the average of y numbers is x then we can form an equation

$\frac{y}{n}=x$

⇒ $\frac{n}{y}=\frac{1}{x}$

⇒ n = $\frac{y}{x}$ --------(1)

Now 30 is added to the set of numbers then average becomes (x - 5)

$\frac{y+30}{n+1}=(x-5)$

⇒ $\frac{(n+1)}{(y+30)}=\frac{1}{(x-5)}$

⇒ (n + 1) = $\frac{y+30}{x-5}$

⇒ n = $\frac{y+30}{x-5}$ - 1 ----- (2)

Now we equate the values of n from equation 1 and 2

$\frac{y}{x}$ = $\frac{y+30}{x-5}$ - 1

y(x - 5) = x(y + 30) - x(x - 5) [ By cross multiplication ]

xy - 5y = xy + 30x - x² + 5x

xy - xy - 5y = 35x - x²

-5y = 35x - x²

x² - 35x = 5y

y = $\frac{1}{5}(x^{2}-35x)$

6 0

2 years ago

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X +30=2X-4 solve x . .

MArishka [77]

Answer: X = 34

Step-by-step explanation:

Let's solve your equation step-by-step.

x+30=2x−4

Step 1: Subtract 2x from both sides.

x+30−2x=2x−4−2x

−x+30=−4

Step 2: Subtract 30 from both sides.

−x+30−30=−4−30

−x=−34

Step 3: Divide both sides by -1.

−x

−1

−34

−1

6 0

2 years ago

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Michael pays $30 to enter a state fair, plus $4 for each ride. Which of the following equations represents his total cost?

klio [65]

Awnser is: T(total)=30(admission)+4(price of rides)x(number of rides)

4 0

3 years ago

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