All categories

2 years ago

Solve for x. Round your answer to the nearest whole number.

Mathematics

1 answer:

gtnhenbr [62]2 years ago

8 0

Answer:

C. x=12

Step-by-step explanation:

imagine a circle with is center being the corner with the 40 degree angle. and a radius of 19.

and now turn the picture by 90 degrees or 270 degrees (not important, this would be just to visualize things better).

x is actually sine of the 40 degree angle multiplied by the radius (19).

x = sin(40)×19 = 12 (12.21296...)

You might be interested in

What is the Quotient of 1 and 2/3 divided by 2 and 3/5

Nostrana [21]

Answer:

25/39

Step-by-step explanation:

For division of mixed numbers, it often works well to first convert them to improper fractions. Then the division proceeds in the usual way: "invert and multiply", or "dot, swap."

$1\dfrac{2}{3}\div2\dfrac{3}{5}=\dfrac{5}{3}\div\dfrac{13}{5}=\dfrac{5}{3}\cdot\dfrac{5}{13}\\\\=\dfrac{5\cdot5}{3\cdot13}=\boxed{\dfrac{25}{39}}$

_____

<em>Additional comment</em>

Your graphing calculator can do this, too.

7 0

1 year ago

In class A, John got 85 for his first test John's class mean was 75 and standard deviation was 5. In class B, Kathy got 80 in he

ivanzaharov [21]

Answer:

b. Kathy

Step-by-step explanation:

We compare each of their score by how far away from the mean when in term of the standard deviation. Using the following formula

$\frac{x - \mu}{\sigma}$

For John he is (85 - 75)/5 = 2.

For Kathy she is (80 - 50)/10 = 3.

Since Kathy is 3 standard deviation better than her class' average, while John is only 2's. We conclude that Kathy did better.

6 0

2 years ago

keeping in mind the role the order of precedence plays in equations, what would excel display as the result of the following equ

Alex73 [517]

The answer to youre question is 5.5

8 0

2 years ago

Plz help me I am stuck on this question

tigry1 [53]

The volume of a cylinder is the area of the circular face times the length of the cylinder.

the area of a circular face is
$A=\pi r^2 = \pi\frac{d^2}{4}$

hence the volume is
$V= \pi r^2 L = \pi \frac{d^2}{4} L$

the Length "L" is 36 in
the diameter "d" is 3 in

6 0

2 years ago

Pls pls pls help

Natasha_Volkova [10]

Answer:

Parallelograms I, II, and IV

Step-by-step:

Area of parallelograms:

I. A=3*5=15 units squared

II. A=5*3=15 units squared

III. A=4*4=16 units squared

IV. A=5*3=15 units squared

So, parallelograms I, II, and IV have the same area of 15 units squared.

5 0

2 years ago