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4 years ago

Will someone please tell me this 13=x/4

Mathematics

2 answers:

Hoochie [10]4 years ago

8 0

The answer is 52 I think.

alexdok [17]4 years ago

8 0

x=52

Solve for x by simplifying both sides of the equation, then isolating the variable.

Thanks,

Deku ❤

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PLS HELP ME GUYS, HELP ME WITH MY GEOMETRY PLS

MaRussiya [10]

Answer:

The x would equal 25

Step-by-step explanation: x equals 25 because you need to use Pythagorean Theorem to find the hypotenuse.

7 0

3 years ago

Read 2 more answers

Find the values of the six trigonometric functions of an angle in standard position if the point with coordinates (84, 13) lies

tia_tia [17]

Answer:

$\sin \theta = 0.153$ , $\cos \theta = 0.988$ , $\tan \theta = 0.155$ , $\cot \theta = 6.462$ , $\sec \theta = 1.012$ , $\csc \theta = 6.538$

Step-by-step explanation:

Let be the point $(x,y)$ , the six trigonometric functions of the angle are represented by following formulas:

$\sin \theta = \frac{y}{\sqrt{x^{2}+y^{2}}}$ (1)

$\cos \theta = \frac{x}{\sqrt{x^{2}+y^{2}}}$ (2)

$\tan \theta = \frac{\sin \theta}{\cos \theta} = \frac{y}{x}$ (3)

$\cot \theta = \frac{1}{\tan \theta} = \frac{x}{y}$ (4)

$\sec \theta = \frac{1}{\cos \theta} = \frac{\sqrt{x^{2}+y^{2}}}{x}$ (5)

$\csc \theta = \frac{1}{\sin \theta} = \frac{\sqrt{x^{2}+y^{2}}}{y}$ (6)

If we know that $x = 84$ and $y = 13$ , then the values of the six trigonometric functions is:

$\sin \theta = \frac{y}{\sqrt{x^{2}+y^{2}}}$

$\sin \theta = 0.153$

$\cos \theta = \frac{x}{\sqrt{x^{2}+y^{2}}}$

$\cos \theta = 0.988$

$\tan \theta = \frac{y}{x}$

$\tan \theta = 0.155$

$\cot \theta = \frac{x}{y}$

$\cot \theta = 6.462$

$\sec \theta = \frac{\sqrt{x^{2}+y^{2}}}{x}$

$\sec \theta = 1.012$

$\csc \theta = \frac{\sqrt{x^{2}+y^{2}}}{y}$

$\csc \theta = 6.538$

4 0

3 years ago

How much would $500 invested at 5% interested compounded monthly be worth after 6 years?

Nataly_w [17]

In 6 years $500 @ 5% comp. monthly will be worth=$674.51

The formula you use to calculate this is: FV=PV(1 + R)^N, where FV=Future value, PV=Present value, R=Interest rate per period, N=Number of periods.

4 0

3 years ago

Read 2 more answers

3. A company manufactures light bulbs. The average lifetime for these bulbs is 4,000 hours with a standard deviation of 200 hrs.

Kisachek [45]

Answer: the company should promote 4412 hours for these bulbs.

Step-by-step explanation:

Assuming that the lives of the bulbs are normally distributed, we would apply the formula for normal distribution which is expressed as

z = (x - µ)/σ

Where

x = lifetime of the bulbs in hours.

µ = mean hours

σ = standard deviation

From the information given,

µ = 4000 hours

σ = 200 hours

If only 2% burn out, then the company would promote 98% would meet the claimed lifetime. Looking at the normal distribution table, the z score corresponding to a probability of 0.98 is 2.06. Therefore,

2.06 = (x - 4000)/200

Cross multiplying, it becomes

200 × 2.06 = (x - 4000)

412 = x - 4000

x = 4000 + 412

x = 4412 hours

5 0

4 years ago

Which of the following fractions is equivalent to 3/8? A.6/14 B.9/24 C.4/9 D.15/35

Irina-Kira [14]

I'm going to suggest that we take these and "UN-simplify" them.

For each choice, divide the numerator by 3 and the denominator by 8.

Look at this:

A). 6/14

6 ÷ 3 = 2
14 ÷ 8 = 1.875 ===> 2/1.875 not interesting

B). skip B for just a second

C). 4/9

   4 ÷ 3 = 1.33
   9 ÷ 8 = 1.125 ===> 1.33/1.125    not interesting

D). 15/35

   15 ÷ 3 = 5
   35 ÷ 8 = 4.375    ===> 5/4.375 not interesting

But now look at choice-B:

B). 9/24

   9 ÷ 3 = 3
   24 ÷ 8 = 3 ===> 1/1 interesting !

-- To simplify 9/24, the top and bottom were divided by 3, giving 3/8.

-- To UN-simplify 3/8, the top and bottom were multiplied by 3, giving 9/24.

-- Choice-B is the one that's equivalent to 3/8.
______________________________________________

OK. All of that wasn't really necessary.
All you really need to do is take each choice and simplify it.

A). 6/14
   Divide top and bottom by 2 ===> 3/7

B). 9/24
   Divide top and bottom by 3 ===> 3/8

C). 4/9
   Can't be simplified. Already in simplest form.

D). 15/35
   Divide top and bottom by 5 ===> 3/7

7 0

4 years ago