3 years ago

Fractions between -8/10 and -4 / 5

Mathematics

1 answer:

ss7ja [257]3 years ago

4 0

Answer:

They are equal.

Step-by-step explanation:

-4/5=-8/10

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Blake is paid $8.75 an hour. He worked 6 hours and spent 1 5 of his pay on a book. How much money did he have after he paid for

jek_recluse [69]

Answer: $42

Step-by-step explanation:

His total pay is $52.50 = 8.47x6

if he spent 1/5 then he has 4/5 left. 4/5 times 52.50 = 4(10.50 = $42

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3 years ago

Solve |x| > 5<br><br> { x| x < -5 or x > 5}<br> { x|-5 < x < 5}<br> {-5, 5}

r-ruslan [8.4K]

Answer:

x>5

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3 years ago

Adam and his dad share the cost of the meal in the ratio of 2:3.

lapo4ka [179]

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4 years ago

Read 2 more answers

Would you rather 36 spherical bottles with radi = 4.57 or three 12-packs of cans if each box is 15inx5inx4.4in

grigory [225]

Answer:

36 bottles

Step-by-step explanation:

Each spherical bottle will have a volume of ...

V = (4/3)πr³ = (4/3)π(4.57³) = 399.8 . . . . cubic inches

Each box (12-pack?) will have a volume of ...

V = LWH = (15 in)(5 in)(4.4 in) = 330 in³

This is a smaller volume than even one spherical bottle, so 36 bottles will have the larger volume.

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4 years ago

Find the interval on which the curve of y equals the integral from 0 to x of 2 divided by the quantity 1 plus 3 times t plus t s

elena-14-01-66 [18.8K]

$y=\displaystyle\int_0^x\frac2{1+3t+t^2}\,\mathrm dt$

By the fundamental theorem of calculus,

$\dfrac{\mathrm dy}{\mathrm dt}=\dfrac2{1+3x+x^2}$

then by standard differentiation,

$\dfrac{\mathrm d^2y}{\mathrm dt^2}=-\dfrac{6+4x}{(1+3x+x^2)^2}$

$y$ is concave upward whenever $\dfrac{\mathrm d^2y}{\mathrm dt^2}>0$ . The denominator is always positive, so the sign is determined by the numerator alone:

$6+4x>0\implies x>-\dfrac32$

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3 years ago