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3 years ago

Simplify the following expressions ( use distributed property )

Mathematics

1 answer:

oksian1 [2.3K]3 years ago

6 0

-9+3x

2(9-3x)/-2

-(9-3x)

-9+3x

Brainliest?

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Leah measured the elementary school and made a scale drawing. She used the scale 1 centimeter : 4 meters. The school yard is 60

spayn [35]

Answer: 15 meters

Step-by-step explanation:

1cm/4m= X cm/ 60 m

Cross multipsy

4x=60

Divide by 4

X=15

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4 years ago

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alex41 [277]

Integrate by parts, setting

$\begin{matrix}u=\ln R&&\mathrm dv=\dfrac{\mathrm dR}{R^2}\\\mathrm du=\dfrac{\mathrm dR}R&&v=-\dfrac1R\end{matrix}$

So the integral is

$\displaystyle\int_1^5\frac{\ln R}{R^2}\,\mathrm dR=-\dfrac{\ln R}R\bigg|_{R=1}^{R=5}+\int_1^5\frac{\mathrm dR}{R^2}$
$\displaystyle\int_1^5\frac{\ln R}{R^2}\,\mathrm dR=-\left(\frac{\ln5}5-\frac{\ln1}1)-\frac1R\bigg|_{R=1}^{R=5}$
$\displaystyle\int_1^5\frac{\ln R}{R^2}\,\mathrm dR=-\frac{\ln5}5-\left(\frac15-1\right)$
$\displaystyle\int_1^5\frac{\ln R}{R^2}\,\mathrm dR=\frac15(4-\ln5)$

5 0

4 years ago

In the diagram AB Is the perpendicular bisector of PH. Help

Rus_ich [418]

Answer:

1,2 and 5 are your right answers! Please vote Brainliest!

Step-by-step explanation:

3 0

3 years ago

I need help with this one ?

Vedmedyk [2.9K]

The y intercept is 1

7 0

3 years ago

Read 2 more answers

A bag of skittles has 50 pieces of candy what percentage is orange ps. there are 11 orange skittles

Oliga [24]

Answer:

I think the answer is 22% but I am not sure

Step-by-step explanation:

Percentage solution with steps:

Step 1: We make the assumption that 50 is 100% since it is our output value.

Step 2: We next represent the value we seek with X

Step 3: From step 1, it follows that 100%=50

Step 4: In the same vein, x%=11.

Step 5: This gives us a pair of simple equations:

100%=50(1).

X%=11(2).

Step 6: By simply dividing equation 1 by equation 2 and taking note of the fact that both the left hand side of both equations have the same unit; we have

100% / X% = 11 / 50

X = 22%

Step 7: Taking the inverse (or reciprocal) of both sides yields

X% / 100% = 11 / 50

Therefore, 11 is 22% of 50.

5 0

3 years ago

Read 2 more answers