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4 years ago

Need help do not understand. Trig confused on what formula I should use?

Mathematics

1 answer:

mylen [45]4 years ago

8 0

In this triangle, you have

$\sin35^\circ=\dfrac{12}x\implies x=\dfrac{12}{\sin35^\circ}\approx20.9$

(Think sine = opposite/hypotenuse. The leg opposite the labeled angle has length 12, and the hypotenuse is $x$ .)

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(15 -3) ÷ 4 ⋅ 7 - 4² ÷ 4 = ? Im struggling with pemdas! With this question especially!

Doss [256]

So here's PEMDAS:

Parenthesis

Exponents

Multiplication

Division

Addition

Subtraction

So we will complete this equation in that order. So first is solving the problem within the parenthesis:

(12) ÷ 4 · 7 - 4² ÷ 4 =?

Then we solve all the parts including an exponent:

12 ÷ 4 · 7 - 16 ÷ 4 = ?

Next, we solve the parts with multiplication:

12 ÷ 28 - 16 ÷ 4 = ?

Then, we solve for all the division:

0.43 - 4 = ?

If there was any addition we would do that next, but because there is none, we move onto subtraction:

0.43 - 4 = -3.57

So, your answer is -3.57

7 0

3 years ago

Jim rents an apartment in New York City for $1600 a month. Mike rents his apartment in Boston for 7/8 as much. How much more doe

worty [1.4K]

Answer:

Jim pays 200 more dollars per month than Mike.

Step-by-step explanation:

Jim--> $1600/month

Mike--> 7/8(Jim's rent)

7/8(Jim's rent)

7/8(1600)

= $1400

1600-1400= 200

Jim pays 200 more dollars per month than Mike.

I hope that makes sense!

4 0

4 years ago

Help mee plz if you r wrong i will tell slenderman to come and get u

Ivanshal [37]

Answer: it’s -5/2 I think. You might have to dive idea if it doesn’t let you put the fraction, but that is the rise over run or y over x

Step-by-step explanation:

3 0

3 years ago

2 in. 4 in. Q. What is the volume of the composite solid? (round to nearest whole number)

katrin2010 [14]

Answer:

thats a cone

Step-by-step explanation:

4 0

3 years ago

I need help please help me! I don’t understand this

Romashka [77]

Answer:

170 m³

Step-by-step explanation:

To solve this type of problem, assume you have two solids joined together to make the shape you have up there. This will enable you find the volume of each, then sum both volume together to get your answer.

Let's solve for the volume as follows.

If we divide the solid into 2, what we have is 2 cuboid: the first having dimensions of:

length (l) = 6m,

width (w) = 2m,

height (h) = 8m

Volume of the first cuboid = $l*w*h = 6*2*8 = 86 m^3$

The second cuboid:

length (l) = 7m,

width (w) = 6m,

height (h) = 2m

Volume of the first cuboid = $l*w*h = 7*6*2 = 84 m^3$

Volume of the figure = 86 + 84 = 170 m³

3 0

3 years ago