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wlad13 [49]
3 years ago
11

Find the distance between a and b

Mathematics
1 answer:
nataly862011 [7]3 years ago
8 0
THE DISTANCE IS 7 UNITS
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Two sides and the non-included right angle of one right triangle are congruent to the corresponding parts of another
fgiga [73]

Answer:

hypotenuse leg theorem or OHL

Step-by-step explanation:

Since the congruent angle is a right angle and it is not included, the two congruent sides of the triangles must include their hypotenuses and one of their legs.

The triangles would be congruent by the hypotenuse leg theorem, which states that if the hypotenuse and one leg of a right triangle are congruent to the hypotenuse and a leg of another right triangle, the triangles are congruent.

7 0
3 years ago
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Substitute the variable and solve the problem
Ann [662]

Answer:

don't know the answer but hope this helps

Substituting for a Variable

If you know the value that the variable is equal to, you can substitute that value in for the variable in the expression! Let's look at an example. Since we know that x=5, we can directly substitute or replace the x in the expression x+3 with a 5 to solve for y!

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3 years ago
The height H of an ball that is thrown straight upward from an initial position 3 feet off the ground with initial velocity of 9
mariarad [96]

Answer:

The ball will be 84 feet above the ground 1.125 seconds and 4.5 seconds after launch.

Step-by-step explanation:

Statement is incorrect. Correct form is presented below:

<em>The height </em>h(t)<em> of an ball that is thrown straight upward from an initial position 3 feet off the ground with initial velocity of 90 feet per second is given by equation </em>h(t) = 3 +90\cdot t -16\cdot t^{2}<em>, where </em>t<em> is time in seconds. After how many seconds will the ball be 84 feet above the ground. </em>

We equalize the kinematic formula to 84 feet and solve the resulting second-order polynomial by Quadratic Formula to determine the instants associated with such height:

3+90\cdot t -16\cdot t^{2} = 84

16\cdot t^{2}-90\cdot t +81 = 0 (1)

By Quadratic Formula:

t_{1,2} = \frac{90\pm \sqrt{(-90)^{2}-4\cdot (16)\cdot (81)}}{2\cdot (16)}

t_{1} = 4.5\,s, t_{2} = 1.125\,s

The ball will be 84 feet above the ground 1.125 seconds and 4.5 seconds after launch.

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3 years ago
What is the equation for the line? <br><br> (2,16) (1,8) (0,0) (-4,16)
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Y=-8x count the differences between the x's and y's from each point. y-int is at 0
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3 years ago
10 subtracted from a number is 15.
Vlada [557]
When negative five is subtracted from a number the result is 10. The number is 5.
x - (-5) = 10
x + 5 = 10
x = 10 - 5
x = 5
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3 years ago
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