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3 years ago

Calculate the slope of each line. Click on the appropriate cell in the table to highlight the line you are interested in.

Mathematics

1 answer:

zzz [600]3 years ago

4 0

Answer:

A -1/3

B -1

C -5/4 or -1 1/4

Step-by-step explanation:

just use rise/run

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Need help! Law of cosines...find b round to the nearest tenth please

dusya [7]

ANSWER

$B = 27.8 \degree$

EXPLANATION

The law of cosine is given by the formula:

${b}^{2} = {a}^{2} + {c}^{2} - 2bc \cos(B)$

From the diagram,

a=17, b=8, c=16

We substitute the given values into the formula to obtain:

${8}^{2} = {17}^{2} + {16}^{2} - 2(17)(16)\cos(B)$

$64 = 289+ 256- 544\cos(B)$

$64 = 545- 544\cos(B)$

$64 - 545 = - 544\cos(B)$

$- 481 = - 544\cos(B)$

$\frac{ - 481}{ - 544} = \cos(B)$

$cos(B) = 0.88419$

$B = \cos ^{ - 1} (0.88419)$

$B = 27.8 \degree$

3 0

3 years ago

Read 2 more answers

How I do circumference and area

Artist 52 [7]

You multiply 3.14 by the diameter or 2 times the radius
for area you do pi or 3.14*radius squared

3 0

3 years ago

140 + (-122) + (-10), I also need it with work.

Aleks04 [339]

Answer:

Step-by-step explanation:

140-122=18

18-10=8

6 0

3 years ago

Read 2 more answers

Sold 12 rolls of wrapping paper and 21 ribbon for $143.25. Then 16 rolls of wrapping paper and 25 ribbon for $181.25. How much i

Flauer [41]

Answer:

4t3 g g v

Step-by-step explanation:

3 0

3 years ago

What is the length of the equilateral triangle below?

kykrilka [37]

Answer:

C. 5√3

Step-by-step explanation:

To figure this out, we need to apply the Pythagorean Theorem, a² + b² = c², where c is the "HYPOTENUSE". In this case, c is already found for us [10], so the operation we use whenever the hypotenuse is defined is deduction, or subtraction. Apply the Pythagorean Theorem: a² + 25 = 100; 75 = a². Now, to find a, we need to find two numbers that multiply to 75, where one of them is a PERFECT SQUARE, and in this case, they are 3 and 25. Since the square root of 25 is 5 [in this case, NO NON-NEGATIVE root], that gets moved to the outside of the radical, and 3 [NON-PERFECT SQUARE] stays wrapped under the radical, ending up with 5√3. You understand?

I am joyous to assist you anytime.

4 0

3 years ago