HELP HELP EASY Use a calculator to approximate cos 43° and round to four decimal places.

Mathematics

1 answer:

Finger [1]3 years ago

6 0

Answer:

0.731353701619170483287543608275622403378...

Step-by-step explanation:

cos((43 π)/180)

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2. What is the slope of the line through<br> the points (-5, 7) and ({0,-2) ?

valentinak56 [21]

Answer:

-9/5

Step-by-step explanation:

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

m=(-2-7)/(0-(-5))

m=-9/(0+5)

m=-9/5

6 0

2 years ago

Can someone solve this with steps cause idk how to solve the radicals

IceJOKER [234]

$\bf 343^{\frac{2}{3}}+36^{\frac{1}{2}}-256^{\frac{3}{4}}\qquad \begin{cases}
343=7\cdot 7\cdot 7\\
\qquad 7^3\\
36=6\cdot 6\\
\qquad 6^2\\
256=4\cdot 4\cdot 4\cdot 4\\
\qquad 4^4
\end{cases}\\\\\\ (7^3)^{\frac{2}{3}}+(6^2)^{\frac{1}{2}}-(4^4)^{\frac{3}{4}}
\\\\\\
\sqrt[3]{(7^3)^2}+\sqrt[2]{(6^2)^1}-\sqrt[4]{(4^4)^3}\implies \sqrt[3]{(7^2)^3}+\sqrt[2]{(6^1)^2}-\sqrt[4]{(4^3)^4}
\\\\\\
7^2+6-4^3\implies 49+6-64\implies -9$

to see what you can take out of the radical, you can always do a quick "prime factoring" of the values, that way you can break it in factors to see who is what.

8 0

3 years ago

I don’t get how to get the answer or graph it

timofeeve [1]

The distance might be the slope of the line

7 0

3 years ago

Solve for F:<br> C=5(F-32)/9

puteri [66]

C = 5(F-32)/9 Multiply each side by 9
9C = 5(F-32) Distribute
9C = 5F - 160 Add 160 to each side
9C + 160 = 5F Divide each side by 5
9/5C + 32 = F

5 0

3 years ago