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3 years ago

Solving equations and inequalities 5x = 11

Mathematics

2 answers:

gayaneshka [121]3 years ago

6 0

Answer:

x=2.2

Step-by-step explanation:

11%5=2.2 so x=2.2

stira [4]3 years ago

6 0

Answer:

x= 11/5

Step-by-step explanation:

5x=11 . Divide each side by 5

5x/5 = 11/5 . Cancel terms

x= 11/5

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Solve the right triangle

defon

I recommend learning the mnemonic SOHCAHTOA (it's very fun to say!)
Here is what SOHCAHTOA represents.

Sin - Opposite / Hypotenuse (SOH)
Cos - Adjacent / Hypotenuse (CAH)
Tan - Opposite / Adjacent (TOA)

The sine of an angle is the length of the side opposite of the angle divided by the length of the hypotenuse.

Thus, the length of the side opposite of the angle divided by the sine will give us the length of the hypotenuse.

The angle is 46 degrees. The length of the side opposite of the angle is 14. The hypotenuse is c.

$c= \dfrac{14}{\sin{46^o}}$

$\approx 19.46$

The tangent of an angle is the length of the side opposite of the angle divided by the length of the side adjacent to the angle.

Thus, the length of the side opposite to the angle divided by the tangent of the angle will give us the length of the other leg.

The length of the side opposite to the angle is 14. The angle is 46. The unknown length of the side adjacent to the angle is b.

$b=\dfrac{14}{\tan{46^o}}$

$\approx 13.52$

This should be what you are looking for. Enjoy!

6 0

3 years ago

The ratio of blue to red chairs in mrs Vick’s class is 2:5 what is the total number of chairs in her class

vodka [1.7K]

Answer:

Step-by-step explanation:

If there are 2 blue chairs and 5 red chairs there are 7 chairs total.

6 0

3 years ago

Find products of (SinA+CosA)* (SinA_ CosA)

Advocard [28]

Answer:

(sin2A--cos2A)

hope this helps you

4 0

3 years ago

One stack has 6 cups, and its height is 15 cm. The other one has 12 cups, and its height is 23 cm. How many cups are needed for

Ronch [10]

Answer:

Given

Number of stacks = 2

Stack 1 = 6 cups; h1 = 15cm

Stack 2 = 12 cups; h2 = 23cm

Let's first find the average:

With an average of 4/3, to obtain the number of cups needed to obtain a height of 50m, we have:

50 / (4/3)

= 50 * 3/4

= 150/4

= 37.5

From the answer, we can see that the number of cups is not really proportional to the height of the stack, because the average of stack one and stack 2 are different.

Step-by-step explanation:

7 0

3 years ago

Tan(-212°) = _____. -cot 32° tan 32° cot 32° -tan 32°

Liula [17]

The correct answer is: -tan 32degrees

8 0

3 years ago