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VARVARA [1.3K]
3 years ago
7

Helpppppp plsssssssss

Mathematics
2 answers:
bekas [8.4K]3 years ago
6 0

Answer:

C

Step-by-step explanation:

The right triangle on the right side of the figure has a height of 6 (two same sides lengths) and a base of 3.

x is the hypotenuse (side opposite of 90 degree angle).

We can use the pythagorean theorem to find x. The pythagorean theorem tells us to square each leg (height and base) of the triangle and add it. It should be equal to the hypotenuse square.

For this triangle it means, we square 6 and 3 and add it. It should be equal to x squared. Then we can solve. Shown below:

6^2 + 3^2 = x^2\\36 + 9 = x^2\\45 = x^2\\x=\sqrt{45}

<em>Now we can use property of radical  \sqrt{x}\sqrt{y}  =\sqrt{x*y}  to simplify:</em>

x=\sqrt{45} \\x=\sqrt{5*9} \\x=\sqrt{5} \sqrt{9} \\x=3\sqrt{5}

Correct answer is C

Shtirlitz [24]3 years ago
6 0

Answer:

The correct answer is option C.  3√5

Step-by-step explanation:

<u>Points to remember</u>

For a right angled triangle

Hypotenuse ² = Base² + Height²

From the attached figure we can see a square and a right angled triangle associated with the square.

Sides of square = 6

<u>To find the value of x</u>

Base = 3 and height = 6

Hypotenuse  = x

x² = 3² + 6²

 = 9 + 36 = 45

x = √45 = 3√5

Therefore the  correct answer is option C.  3√5

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When given points (1,1) and (2,2), what is the slope ?
scoray [572]

Answer:

m=1

Step-by-step explanation:

Slope can be calculated using following formula

m=\frac{y_2-y_1}{x_2-x_1}  ----------- (1)

<u>Here</u>

(x_1, y_1)=(1, 1) \ \ and \ \ (x_2, y_2) = (2, 2)

Substitute values in equation (1)

m=\frac{2-1}{2-1}

m=1

7 0
3 years ago
How to write 15/8 as a mixed number
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Mixed=whole+fraction

15/8=8/8+7/8=1+7/8=1 and 7/8
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kipiarov [429]

Answer:

Step-by-step explanation:

3x+7y-2x+3y+7

group like terms

3x-2x   +7y+3y   +7

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8 0
3 years ago
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Simplify<br> x² - 7x - 30<br> x² + 5x + 6
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6 0
2 years ago
How would you solve this(what is the equation of the line that passes through the point (3,4) and has a slope of -2/3?)//delta m
andre [41]

Answer:

y = -\frac{2}{3}x + 6

Step-by-step explanation:

y = mx + b is the formula for slope intercept. What we can do is plug in the slope and coordinate points to find the y-intercept.

4 = -\frac{2}{3}(3) + b

-2/3 times 3 is -2 so you can fill that in place.

4 = -2 + b

<u>+2   +2     </u>

6 = b

So the y-intercept is 6 now we can complete the equation.

y = -\frac{2}{3}x + 6

Hope that helps and have a great day!

6 0
3 years ago
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