In ΔABC, what is the value of cos B? A) 5/13 B)12/13 C)5/12 D)13/12

Find the distance between xequals[Start 2 By 1 Matrix 1st Row 1st Column 8 2nd Row 1st Column negative 5 EndMatrix ]and yequals[

kherson [118]

Answer:

Distance =√(x₁ - y₁)²+ (x₂ - y₂)² = √97 = 9.85

Step-by-step explanation:

The Matrix X and Y could also be referred to as vectors in Rⁿ dimensions.

if Vector X = ( x₁ , x₂) and Vector Y = (y₁ , y₂)

then, Distance (X-Y) = ||X-Y|| = √(x₁ - y₁)²+ (x₂ - y₂)²

where, x₁ = 8, x₂ = -5 and y₁ = -1 , y₂ = -9

Distance = √(8 - (-1))²+ (-5 - (-9))² = √9² + 4² =√97 = 9.85

4 0

3 years ago

The volume of a cone-shaped hole is 50 pi ft cubed . If the hole is 6 ft deep, what is the radius of the hole?

True [87]

Answer:

r = 5

Step-by-step explanation:

The formula for volume of a cone is $\pi r^2*\frac{h}{3}$

h = 6

V = 50π

$2\pi r^2=50\pi$

r = 5

8 0

3 years ago

A number divided by 80 with a quotient of 7 and a remainder of 4

Lerok [7]

I dont have the * exact answer * but i got 11 or 12. Hope this helps :))

5 0

3 years ago

A class quiz has 5 True/False questions. The correct answers are T, T, F, F, and T, in that order. John answered the

weeeeeb [17]

1/2 is your Answer

I came across this question to

7 0

2 years ago

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Rewrite the following quadratic functions in intercept or factored form. Show your work.

Mariulka [41]

Answer:

y = 5x (x+2)

Step-by-step explanation:

We are given the following the quadratic function and we are to rewrite it in intercept or factored form:

$y = 5x^2 + 10x$

We can factorize the given expression so taking the common factors out of it to get:

$y=5x^2 + 10x$

$y = 5x (x + 2)$

Therefore, the factored form of the given quadratic function is y = 5x (x+2).

4 0

3 years ago

Read 2 more answers