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2 years ago

14

Coty painted a right triangle on paper. The hypotenuse of his triangle is 18 inches and one of the legs is 7 inches. What is the

length of third side?

1 answer:

padilas [110]2 years ago

3 0

Answer:

G) 16.6

Step-by-step explanation:

We can use the pythagoriam theroem to solve the problem

$a^{2} + b^{2} = c^{2}$

$a^{2} + 7^{2} = 18^{2}$

$a^{2}$ + 49 = 324

$a^{2}$ = 275

a = 16.6

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Pls help me...how do u factor that ?

Leya [2.2K]

Answer:

(2x - 1)(2x + 1)(x - 7)

Step-by-step explanation:

We use grouping to factor.

Step 1: Group 1st 2 terms together and factor

4x³ - 28x²

4x²(x - 7)

Step 2: Group last 2 terms together and factor

-x + 7

-1(x - 7)

Step 3: Combine

(4x² - 1)(x - 7)

Step 4: Factor out quadratic

(2x - 1)(2x + 1)(x - 7)

4 0

3 years ago

5|2x - 3| + 4 = 9<br> How do you solve this

agasfer [191]

Answer:

x = 2, or x = -1

Step-by-step explanation:

If 2x - 3 is inside the parenthesis (), then the value of x is 2.

If 2x - 3 is inside the absolute value sign, then the value of x will probably be -1.

<u>Solution 1</u>

(10x-15) + 4 = 9

10x -11 = 9

10x = 20 -> x = 2

<u>Solution 2</u> (Not 100% sure)

|10x -15| +4 = 9

10x + 15 +4 = 9

10x + 19 = 9

10x = -10 -> x = -1

Please correct me if I'm wrong.

<u />

3 0

3 years ago

Which of the following is a perfect square trinomial?

Bezzdna [24]

Answer:

$D.~4x^2-20xy+25y^2$

Step-by-step explanation:

$4x^2-20xy+25y^2\\\\=(2x)^2-2\cdot 2x \cdot 5y+(5y)^2\\\\=(2x-5y)^2$

3 0

2 years ago

Find the midpoint of diagonal WY.. . Figure WXYZ is shown. W is at 0, 2. X is at 0, 6. Y is at 6, 6. Z is at 6, 2.. . (2, 4). .

Anestetic [448]

Answer:

$(3,4)$

Step-by-step explanation:

we know that

The formula to calculate the coordinates of the midpoint between two points is equal to

$M(\frac{x1+x2}{2},\frac{y1+y2}{2})$

we have that

The coordinates of diagonal WY are

$W(0,2), Y(6,6)$

substitute in the formula to calculate the midpoint

$M(\frac{0+6}{2},\frac{2+6}{2})$

$M(\frac{6}{2},\frac{8}{2})$

$M(3,4)$

3 0

3 years ago

Read 2 more answers

Whats the area and perimeter to the shape below?

Anarel [89]

Answer:

Step-by-step explanation:

a) Area of white square = side *side = 8 * 8 = 64 sq.mm

Area of 4 white square = 4 * 64 = 256 sq.mm

compound shape

length = 3 cm = 30 mm

Width = 2 cm = 20 mm

Area of compound shape = length *width = 30 * 20 = 600 sq.mm

Area of the shaded part of the compound shape =

Area of compound shape - Area of 4 white square

= 600 - 256

= 344 sq.mm

b) Perimeter of compound shape = 2*(length + width)

= 2*(30 +20)

= 2* 50

= 100 mm

6 0

3 years ago