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2 years ago

Write the equation that describes the line in slope-intercept form.

Mathematics

1 answer:

leonid [27]2 years ago

6 0

Answer: Y= 4x - 14

Step-by-step explanation: Use the formula - ( x - x1) = m ( y-y1) [ m = slope = 4 , x1 = 3 , y1 = -2 ]

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In preparing a certain ointment, a pharmacist used 28.35 g of zinc oxide instead of the 31.1 g called for. Calculate the percent

Vilka [71]

Answer: 9.70%

Step-by-step explanation:

The formula to find the percentage error is given by :-

$\%\text{ error}=\dfrac{|\text{Estimate-Actual}|}{\text{Actual}}\times100$

Given : Actual mass of zinc oxide used by pharmacist = 28.35 g

Estimated mass of zinc oxide used by pharmacist =31.1 g

Now, $\%\text{ error}=\dfrac{|31.1-28.35|}{28.35}\times100$

i.e. $\%\text{ error}=\dfrac{2.75}{28.35}\times100$

i.e. $\%\text{ error}=9.70017636684\approx9.70\%$

Hence, the percentage of error on the basis of the desired quantity.= 9.70%

5 0

2 years ago

Help me plz I will give brainliest

Zarrin [17]

Answer:

Step-by-step explanation:

(35 - 20)/20

15/20 = .75

.75 * 100 == 75%

75%

6 0

2 years ago

5. What is the slope of the line ?

guapka [62]

Answer:

it is 2/3

Step-by-step explanation:

6 0

2 years ago

The volume of a cylinder is 32.25 cubic inches. If a cone has the same height and radius as the cylinder, what is its volume?

PtichkaEL [24]

The volume of a cylinder with a radius r and a height h:

$V_1=\pi r^2h$

The volume of a cone with a radius r and a height h:

$V_2=\dfrac{1}{3}\pi r^2h$

Therefore

$V_2=\dfrac{1}{3}V_1$

We have $V_1=32.25\ in^3$

Substitute:

$V_2=\dfrac{1}{3}\cdot32.25=10.75\ in^3$

Answer: The volume of a cone is equal 10.75 in³

8 0

2 years ago

Need help finding answer

Tresset [83]

Answer:

x=5

Explanation:

Begin to isolate x by adding 12 on both sides of the equation

5x=2x+15

Subtract

2x on both sides of the equation

3x=15

Isolate x by dividing both sides of the equation by

3x=5

8 0

2 years ago