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Sliva [168]
3 years ago
7

Solve for a. 1.) ab + c = d 2.) a = b + c/d 3.) a = b/(c - d) 4.) a = (d - c)/b

Mathematics
1 answer:
Vera_Pavlovna [14]3 years ago
8 0
1) ab+c=d subtract c on both sides
   ab=d-c divide b on both sides
   a=d/a - c/a or a=(d-c)/d

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8. Graph the following equation: y = x2 + 4x - 5
Dennis_Churaev [7]

Answer:

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6 0
3 years ago
Find the slope of the line that passes through the points (3,0) and (3,-2).
Fittoniya [83]
When given the points (x1,y1) and (x2,y2)

slope=(y2-y1)/(x2-x1)

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(3,0) and (3,-2)
(x,y)
x1=3
y1=0
x2=3
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answer is D
8 0
3 years ago
Read 2 more answers
Find the mean and the standard deviation for each set of values. Show your work. 15,17,19,20,14,23,12
vekshin1
1. Mean.

\overline{x}=\dfrac{15+17+19+20+14+23+12}{7}=\dfrac{120}{7}\approx\boxed{17.14}

2. <span>Standard deviation.

First we have to square each value and calculate the mean of that squares:

\overline{x^2}=\dfrac{15^2+17^2+19^2+20^2+14^2+23^2+12^2}{7}=\boxed{\dfrac{2144}{7}}

so the variance:

s^2=\overline{x^2}-\overline{x}^2=\dfrac{2144}{7}-\left(\dfrac{120}{7}\right)^2\approx\boxed{12.41}

and the standard deviation:

s=\sqrt{s^2}=\sqrt{12.41}\approx\boxed{3.52}
</span>
3 0
4 years ago
By looking at the intercepts, which linear function does the graph represent?
masha68 [24]
The answer would be D.
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6 0
3 years ago
What do u need to divide 9w by in order to have 1w
Andre45 [30]

Answer:

9

Step-by-step explanation:

9w/9 = 1w

6 0
3 years ago
Read 2 more answers
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