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3 years ago

Help please! and explain

Mathematics

1 answer:

Mashutka [201]3 years ago

6 0

A square has four equal sides to find he area of a square multiply one side by the other. If the square is 2by2by2by2 multiply 2x2 to get the area. In this case you already have the area. The area of a square can be defined as x^2 x being the length of a side = the area x^2=A substitute the value of the are x^2=37 to simplify this expression you have to cancel out the x^2 to x. Do this by using the square root. Square root of x squared is x remember you have to do this on both sides of the equation so the square root of 37 is something like 6.081937474728774738 or something and you have to round to the nearest tenth of an inch so.. The length of a side would be approximately 6.1 inches

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What is the sine of

Artyom0805 [142]

XZ = square root (16^3 + 63^2)
XZ = square root (256 + 3969)
XZ = square root (4225)
XZ = 65

sin(Z) = 16 / 65

answer is A. 16/65

7 0

3 years ago

I need help!!! What is 25sin26=x? plz help

Nadya [2.5K]

Answer:

the answer is 19.06396

Step-by-step explanation:

there is no need for further explanation because the equation is already balanced

5 0

3 years ago

In the equation y=-2x + 3, if x = 7, what does y equal

Ahat [919]

Answer:

-11

Step-by-step explanation:

-14+3=-11

7 0

3 years ago

In circle o,find the value of x, rounded to the nearest tenth.

Gemiola [76]

Answer:

$\huge\boxed{x \approx 5.4}$

Step-by-step explanation:

We can break down this problem by first realizing different parts of the circle.

The line which is 8 units long is a chord of the circle.
The line that is 3.6 is almost the radius of the circle
The line that x sits on is the radius.

With this, we can find out if we find the radius of the circle, we have our answer.

We should also note that the angle formed by the 3.6 units long line and the chord is a right angle.

What we need is a way to find the radius of the circle. This will get us x. The radius of a circle will be the length of any line that starts from point O and ends at the circle edge.

If we draw a line connecting the end of the 3.6 line at point O to the end of the 8 unit long chord, we get a triangle! (Image attached for reference).

We can solve for the hypotenuse using the Pythagorean Theorem. This theorem states that:

$\displaystyle a^2 + b^2 = c^2$

Since we know one side is 3.6, we can use that as A. The second side will be 4 since the 3.6 line lies directly in the center of the chord = 8/2 = 4!

$3.6^2 + 4^2 = c^2$
$12.96+16=c^2$
$28.96=c^2$
$\sqrt{28.96} = c$
$5.4 \approx c$

Therefore, since this is the radius of the circle (also the hypotenuse), this can be said for any line that comes from point O onto the edge of the circle.

The line X does just that. Therefore, the value of x is also 5.4.

Hope this helped!

4 0

2 years ago

if a binomial event has a probability of success of 0.3, how many successes would you expect out of 2000 trials

marin [14]

multiply 2000 x 0.3 and you get 600

3 0

3 years ago