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3 years ago

7

in science class mrs.moore students were directed to weight a 300 gram mass on the balance scale tina weighed the object and rep

orted 328 grams

1 answer:

IrinaK [193]3 years ago

4 0

Answer: 9 1/3%

Step-by-step explanation:

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WHAT IS THE LENGTH OF EF IN THE RIGHT TRIANGLE BELOW? answers are in the picture !

xeze [42]

$Using\ the\ Pythagoreans'\ theorem,\ \\ \\ \\ c^2=a^2+b^2 \\ \\ 25^2=7^2+b^2 \\ \\ b^2=625-49 \\ \\ b= \sqrt{576} \\ \\ = 24\ units$

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2 years ago

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Find the particular solution of the differential equation that satisfies the initial condition f'(x) 4x, f(0) = 5 f(x) =

malfutka [58]

Answer: $f(x)=2x^2+5$

Step-by-step explanation:

First integrate f'(x) so we can find the funtion f(x):

$4\int\limits {x} \, dx =4[\frac{1}{2} x^2]=2x^2+C=f(x)$

The initial conditions say that when x = 0, the function equals 5. Let's write that down:

$f(0)=5=2(0^2)+C=C$

Therefore, the integration constant 'C' must equal 5. This means that our function is:

$f(x)=2x^2+5$

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2 years ago

PLSSS HURRY ILL GIVE YOU A BRAINLYEST

8090 [49]

Answer:

36 inches

Step-by-step explanation:

lets think of it as a ratio,

80:w

20:9

so we want 20 to get to 80

and 9 to get to w right?

so if we just move the smaller rectangle to the corner, then 20*4=80 right?

and if we do that, we do it to 9 as well, 9*4=36

w=36

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2 years ago

How to find the profit/ loss in total

Pani-rosa [81]

Answer:

Take the amount spent and subtract it from the amount made to find profit/loss

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3 years ago

• A rational number is such that when you multiply it by

Tatiana [17]

Answer:

The number is -1/2.

Step-by-step explanation:

I am assuming they are fractions. So we have the equation:

5/2 x + 2/3 = -7/12

We multiply through by 12 to eliminate the fractions:

5/2 * 12 x + 2/3 * 12 = -7/12 * 12

30x + 8 = -7

30x = -15

x = -15/30

x = -1/2.

7 0

3 years ago