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3 years ago

I need help with letter D

Mathematics

1 answer:

Ivahew [28]3 years ago

4 0

To find 1. all you have to do is 165/30 and you get $5.50. To find 2. you have to add 165+45 you get 210. then divide 210/40 and you get 5.25

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3 years ago

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I need help with trigonometry

MrMuchimi

Answer:

In alphabetic order:

x can be found with pythagorean theorem, since triangle ADC is right in D.

$x= \sqrt {7^2-2.2^2} \approx 6.6$

y and z are 7 times respectively the sine and cosine of angle ACB.

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2 years ago

Need help solving to complete the square

aev [14]

Answer:

b=9 and b=-21

Step-by-step explanation:

first step: move 195 to the other side by adding to get:

b^2+12b=189

now to find the constant you take the b value which is 12 divide that by 2 and square it. then add the product to both sides. 12/2=6, 6^2=36

b^2+12b+36=189+36

next factor b^2+12b+36.

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square root both sides to get:

b+6=15 and b+6=-15

solve by subracting 6 to both sides and you get the 2 final answers.

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3 years ago

What is the slope of the line through (2, -2) and (9, 3)

scoundrel [369]

Answer:

Step-by-step explanation:

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3 years ago

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