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3 years ago

Which set of numbers could represent the lengths of the sides of a right triangle? A 8 9 10 B 2 3 4 C 12 15 20 D 9 40 45

Mathematics

2 answers:

beks73 [17]3 years ago

6 0

Id say b because hypotenuse is bigger than length and width

Dvinal [7]3 years ago

3 0

Answer:

I took this test and for D. I think you meant to put 9, 40, 41 which is the correct answer.

Step-by-step explanation:

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What does the "area" of a pizza mean?

denis23 [38]

Answer:

The area is the entire pizza

Step-by-step explanation:

6 0

1 year ago

A projectile is launched from the ground at an angle of theta above the horizontal with an initial speed of v in ft/s. The rang

VARVARA [1.3K]

Answer:

$\theta=24.4^\circ$

Step-by-step explanation:

The formula you wrote has the fraction the other way around. You can find that the range of a projectile is in reality approximated by the equation $x=\frac{v^2}{g} sin(2\theta)=\frac{v^2}{32ft/s^2} sin(2\theta)$ , where we will use ft for distances.

From the given equation we have then $\frac{x32ft/s^2}{v^2} =sin(2\theta)$ , which means $\theta=\frac{Arcsin(\frac{x32ft/s^2}{v^2})}{2}$ since the arcsin is the inverse function of the sin.

Since we have x = 170 ft and v = 85 ft/s, we can substitute these values from the equation written, and we will have $\theta=\frac{Arcsin(\frac{(170ft)(32ft/s^2)}{(85ft/s)^2})}{2}$ , and from now on we have just to use a calculator, obtaining $\theta=\frac{Arcsin(0.75294117647)}{2}=\frac{48.84579804^\circ}{2}=24.4^\circ$

3 0

2 years ago

Write an equation in point slope and slope intercept form of a line that passes through the given point and has the given slope

Evgesh-ka [11]

Answer:

Point-Slope: $y+4=-\frac{1}{2}(x+3)$

Slope-Intercept: $y=-\frac{1}{2}x-\frac{11}{2}$

Step-by-step explanation:

The point-slope formula is $y-y_{1}=m(x-x_{1} )$ . The slope-intercept formula is $y=mx+b$ . Since we are given the point and slope, we can directly plug it into the point-slope formula.

Point-Slope

$y-(-4)=-\frac{1}{2}(x- (-3))$

$y+4=-\frac{1}{2} (x+3)$

To find the slope-intercept form, we can manipulate the point-slope form to get the slope-intercept form.

Slope-Intercept

$y+4=-\frac{1}{2}x-\frac{3}{2}$

$y=-\frac{1}{2}x-\frac{11}{2}$

6 0

3 years ago

Read 2 more answers

If f(x)=2x+1 and g(x)=(x^2)-7, find (f/g)(x).

alexdok [17]

$f(x)=2x+1;\ g(x)=x^2-7\\\\\left(\dfrac{f}{g}\right)(x)=\dfrac{f(x)}{g(x)}\\\\\boxed{\left(\dfrac{f}{g}\right)(x)=\dfrac{2x+1}{x^2-7}}$

6 0

2 years ago

Read 2 more answers

Please help me I need help.

Varvara68 [4.7K]

Hello there! The answer is point C, which also happens to be answer C.

Our answer is required to be greater than 1.5 on the x-axis, but also less than -2.5 on the y-axis. By viewing the requirements for the x-axis, our only two relevant answers are points A and C. When looking at point A, however, it has a y-value of +4. Meanwhile, point C has a y-value of -3, which is less than -2.5. Therefore, our answer is point C. Hope this helps!

7 0

1 year ago