2 years ago

Help???????????????????????

Mathematics

2 answers:

ElenaW [278]2 years ago

5 0

Answer: 3(2)*2+15/3 = 23

denis-greek [22]2 years ago

5 0

Answer:

Step-by-step explanation:

3^2 x 2 + 15 : 3

9 x 2 + 5

18 + 5 = 23

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Please help! 30 points!

Rashid [163]

Answer: $64.2^{\circ}$

Step-by-step explanation:

According to the cosine rule

$\cos C=\dfrac{a^2+b^2-c^2}{2ab}$

Here, $a=83, b=111, c=165,\ C=180^{\circ}-\theta$

Putting values

$\Rightarrow \cos (180^{\circ}-\theta)=\dfrac{83^2+111^2-165^2}{2\times 83\times 111}\\\\\Rightarrow \cos(180^{\circ}-\theta)=\dfrac{6889+12321-27225}{18426}\\\\\Rightarrow \cos(180^{\circ}-\theta)=\dfrac{-8015}{18426}=-0.4349\\\\\Rightarrow 180^{\circ}-\theta=\cos^{-1}(-0.4349)=115.77^{\circ}\\\Rightarrow \theta=64.23\approx 64.2^{\circ}$

So, the ship turns by $64.2^{\circ}$ north of west

8 0

3 years ago

If you get this right I will mark you as a brainliest

svp [43]

The answer would be D.

3 0

3 years ago

In the expretion7to the third power-4*3+8 the firstt operation is

xxMikexx [17]

Answer:

7³

Step-by-step explanation:

Using PEMDAS, we see that E (which stands for exponents) comes before M (which stands for multiplication) and A (which stands for addition) so the first operation you should do is 7³.

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3 years ago

A pharmacist put 3.84 ounces of vitamin pills into bottles. She put 0.032 ounce

Alecsey [184]

Answer:

0.032

Step-by-step explanation:

Divide each term by 0.032 and simplify

6 0

3 years ago

Read 2 more answers

-3 x 2(4-18) + 8 =<br> Solve the equation