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2 years ago

31.8 miles/hr= ? Feet/sec

1 answer:

6 0

1 mi = 5280 ft
1 h = 3600 s

therefore:

$31.8\ \dfrac{mi}{h}=31.8\cdot\dfrac{5280}{3600}\ \dfrac{ft}{s}=46.64\ \dfrac{ft}{s}$

Answer: 31.8 mi/h = 46.64 ft/s

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Glen invested 22000 at 7% interest compound annually. how much interest will glen earn in 3 years

Rama09 [41]

A = P(1+r/n)<span>(nt)
A = 22000(1+0.07/1)^(1*3)
A = 26,950.95

</span>26,950.95 - 22000 = 4950.95

answer: Glen earns $4,950.95 interest in 3 years

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2 years ago

Round 5.80405471744 to the nearest thousandth.

denis-greek [22]

Answer:

5.804

Step-by-step explanation:

5.804

^ ^ ^

After the thousands place is a 0, so the number for the thousands place would stay the same. If it were higher than 4, it would round to 5.805 (but it isnt so it's 5.804)

tens, hundreds, thousands

4 0

2 years ago

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Please help i will give out brainliest

enot [183]

Answer:

Step-by-step explanation:

To determine if a point lies on the curve, substitute the x- coordinate into the equation. If the value obtained is equal to the y- coordinate then the point lies on the curve, that is

y = ( $\frac{3}{2}$ )² = $\frac{9}{4}$ ≠ $\frac{9}{2}$ ← not on line

y = (- 1)² = 1 ← lies on line

y = 4² = 16 ← lies on line

y = ( $\frac{1}{2}$ )² = $\frac{1}{4}$ ← lies on line

7 0

2 years ago

Find (2.2 x 105) ÷ (4.4 x 10-3). When you regroup the factors, what do

SVEN [57.7K]

Answer:

$\sf 5.0 \times 10^7$

Step-by-step explanation:

Given expression:

$\sf (2.2 \times 10^5) \div (4.4 \times 10^{-3})$

$\implies \sf \dfrac{2.2 \times 10^5}{4.4 \times 10^{-3}}$

$\implies \sf \dfrac{2.2}{4.4} \times \dfrac{10^5}{10^{-3}}$

$\implies \sf (2.2 \div 4.4) \times (10^5 \div 10^{-3})$

$\textsf{Apply exponent rule} \quad a^b \div a^c=a^{b-c}$

$\implies \sf 0.5 \times 10^{5-(-3)}$

$\implies \sf 0.5 \times 10^8$

Write in scientific notation:

$\implies \sf 5.0 \times 10^7$

The quotient of the decimal factors is 0.5 and therefore less than 1.

The first factor in scientific notation must be less than 10 and greater than or equal to 1. Therefore, 0.5 should be multiplied by 10 to become 5.0, which means the exponent of the quotient will be decreased by 1.

Learn more about exponents here:

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11 months ago

What is the solution of the equation 3(x+2)=x+11

hjlf

$3(x + 2) = x + 11 \\ 3x + 6 = x + 11 \\ 2x = 5 \\ x = \frac{5}{2} = 2.5$

7 0

3 years ago

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