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andreev551 [17]
3 years ago
6

Find the values of a and b​

Mathematics
1 answer:
never [62]3 years ago
5 0

Step-by-step explanation:

b=

180-40=2b

b=70°

a= 180-90-70

a=20°

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Deena has 4 pairs of white socks, 3 pairs of black socks, 1 pair of red socks, and 2 pairs of navy socks in her sock drawer. Eac
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Answer:

<u>The  probability that Deena will choose a pair of white socks is 4/10 or 40%</u>

Step-by-step explanation:

Let's check the information provided to us to answer the question correctly:

Total pairs or socks Deena has = 10

Pairs of white socks Deena has = 4

Pairs of black socks Deena has = 3

Pairs of red socks Deena has = 1

Pairs of navy socks Deena has = 2

If she pulls a pair of socks out of her drawer in the morning without looking, what is the  probability that she will choose a pair of white socks?

Probability of Deena will choose a pair of white socks = Pairs of white socks Deena has/Total pairs or socks Deena has

Replacing with the real values, we have:

Probability of Deena will choose a pair of white socks = 4/10 or 40%

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Please help me out by answering these questions!
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A 3,-3

B 3,-6

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D 7, -3

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A computer program in Shannon's computer carries a single mathematical operation in 1.5*10^-6 seconds. How much time would the p
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Read 2 more answers
Find the equation of the line parallel to 7y+2x-10=0 that passes through the point (2,2)
KiRa [710]

Parallel lines have the same slope.

We have the general form of line. Transform to the slope-intercept form:

y=mx+b

m - slope, b - y-intercept

7y+2x-10=0      <em>subtract 2x from both sides</em>

7y-10=-2x       <em>add 10 to both sides</em>

7y=-2x+10       <em>divide both sides by 7</em>

y=-\dfrac{2}{7}x+\dfrac{10}{7}\to m=-\dfrac{2}{7}

Therefore we have: y=-\dfrac{2}{7}x+b.

The line passes through the point (2, 2). Substitute the coordinates of the point to the equation of a line:

2=-\dfrac{2}{7}(2)+b

2=-\dfrac{4}{7}+b      <em>add \dfrac{4}{7} to both sides</em>

2\dfrac{4}{7}=b

y=-\dfrac{2}{7}x+2\dfrac{4}{7}

y=-\dfrac{2}{7}x+\dfrac{18}{7}     <em>multiply both sides by 7</em>

7y=-2x+18       <em>subtract 7y from both sides</em>

0=-2x-7y+18      <em>change the signs</em>

2x+7y-18=0

<h3>Answer:</h3>

y=-\dfrac{2}{7}x+\dfrac{18}{7}  slope-intercept form

2x+7y-18=0   general form

7 0
3 years ago
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