2 years ago

What is m∠1?............

Mathematics

1 answer:

gogolik [260]2 years ago

8 0

the answer is 148

hope that helped lol

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<img src="https://tex.z-dn.net/?f=c%5E2%3Da%5E2%2Bb%5E2-2ab%20cosC" id="TexFormula1" title="c^2=a^2+b^2-2ab cosC" alt="c^2=a^2+b

Ad libitum [116K]

$\bf \textit{Law of Cosines}\\ \quad \\
c^2 = {{ a}}^2+{{ b}}^2-(2{{ a}}{{ b}})cos(C)\implies 
c = \sqrt{{{ a}}^2+{{ b}}^2-(2{{ a}}{{ b}})cos(C)}\\ \quad \\

\cfrac{{{ a}}^2+{{ b}}^2-c^2}{2{{ a}}{{ b}}}=cos(C)\implies cos^{-1}\left(\cfrac{{{ a}}^2+{{ b}}^2-c^2}{2{{ a}}{{ b}}}\right)=\measuredangle C$

8 0

3 years ago

A box weighs 3 7/8 pounds. This box is 3/4

Maurinko [17]

Answer:

3 1/8 pounds

Step-by-step explanation:

rewrite equation into seperate parts: 3+7/8-3/4. then solve fraction parts: 7/8-3/4 lcd would be 8, so 7/8-6/8 would be 1/8. ad the 3 and the answer is 3 1/8

6 0

3 years ago

HEY CAN ANYONE PLS ANSWER DIS MATH QUESTION!!!!!!!

GenaCL600 [577]

Answer:

Up to 10

Step-by-step explanation:

Cost of fish = $3.99
Limit of money = $40
Number of fish = x

<u>Inequality:</u>

3.99x ≤ 40
x ≤ 40/3.99
x ≤ 10.02

3 0

2 years ago

Help me please and thank you

AURORKA [14]

Answer:

Step-by-step explanation:

You just count the dots and check the tables.

4 0

3 years ago

How would I be able to get the step by step prosses of this and the answer of y?

Daniel [21]

Answer:

y = 3

Step-by-step explanation:

-7 = -4y + 5

Subtract 5 from both sides to isolate variable y:

-7 - 5 = -4y + 5 - 5

-12 = -4y + 0

-12 = -4y

Divide both sides by -4 to isolate variable y:

-12 ÷ -4 = -4y ÷ -4

(Negative ÷ Negative = Positive)

3 = 1y

3 = y

Check your work:

-7 = -4(3) + 5

Use PEMDAS:

-7 = -12 + 5

-7 = -7

Correct!

6 0

2 years ago