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3 years ago

Find the value of x. Round to the nearest tenth

Mathematics

1 answer:

masha68 [24]3 years ago

5 0

Answer: x= 42.3

Step-by-step explanation:

Sqrt a^2 + b^2 - (2ab)(cos 100)

Sqrt 25^2 + 30^2 - (2)(25)(30)(cos 100)

42.3

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The product of the slopes is -1.

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The formula for the circumference of a circle is C=2 nr. What is the radius of a circle with a

Vladimir [108]

Answer:

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Step-by-step explanation: hope this helped!

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Read 2 more answers

Select all the correct answers.

Vlad1618 [11]

Answer:

The measure of reference angle is $30^{\circ}$ .
$\cos \theta=\frac{\sqrt{3}}{2}$

Step-by-step explanation:

Converting $\theta$ to degrees,

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This means $\theta$ lies in Quadrant 4, and thus its reference angle is $360^{\circ}-330^{\circ}=\boxed{30^{\circ}}$

Since $\theta$ lies in the fourth quadrant, $\sin \theta$ and $\tan \theta$ are negative.

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2 years ago

Which situation can be represented by -85+85 choose all that apply

Anuta_ua [19.1K]

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3 years ago

3. Siti and Mary shared $35 in the ratio 4:3.<br> How much money did Siti receive?

Mashcka [7]

Answer:

$20

Step-by-step explanation:

First we will change the ratio so that we are finding how much money Siti receives to the total amount of money.

$4:3 \rightarrow 4:(3+4)=4:7$

Now we can solve for how much money Siti receives using a proportion.

$\frac{4}{7} = \frac{\mbox{money Siti receives}}{35}$

We can see that the denominator increases 5 times, so the numerator must increase 5 times too. This means Siti receives $20.

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2 years ago