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VLD [36.1K]
2 years ago
15

What kind of triangle is ABC? Select all that apply.

Mathematics
1 answer:
iVinArrow [24]2 years ago
4 0

This is a right triangle.  If the triangle were laid down, on an end, a right angle would be visible.

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A local minimum of a function is its: A) smallest value of the function over its entire domain. B) largest value of the function
Hunter-Best [27]

Answer:

D

Step-by-step explanation:

7 0
3 years ago
Use a matrix equation to solve the system of linear equations. left brace Start 2 By 1 Matrix 1st Row 1st Column 2nd Row 1st Col
natali 33 [55]

Answer:

\left[\begin{array}{ccc}3&-1&\\-1&1/2\\\end{array}\right]

Step-by-step explanation:

The matrix system for the linear equations: x + 2y = 8, 2x + 6y = 9

\left[\begin{array}{ccc}1&2&\\2&6\\\end{array}\right] \left[\begin{array}{ccc}x\\y\end{array}\right] = \left[\begin{array}{ccc}8\\9\end{array}\right]

To get the coefficient of x and y, the inverse of the first matrix (let the first matrix be A) must be known.

A^{-1} = (1 / determinant of A) x Adjoint of A

the determinant of A = (1 x 6) - (2 x 2) = 6 - 4 = 2

Adjoint of A = \left[\begin{array}{ccc}6&-2&\\-2&1\\\end{array}\right]

A^{-1}= \frac{1}{2} \left[\begin{array}{ccc}6&-2\\-2&1\end{array}\right] = \left[\begin{array}{ccc}3&-1&\\-1&1/2\\\end{array}\right]

4 0
3 years ago
What is 3 1/8 - 1 7/8=
photoshop1234 [79]

Answer:

1  1/4

Step-by-step explanation:

3 1/8 - 1 7/8

I like to line them up vertically

3 1/8

- 1 7/8

---------------

We need to borrow from the 3

Take 1 from the 3 and make it 8/8

 2 (1/8+8/8)

- 1 (7/8)

---------------------

2 (9/8)

- 1 (7/8)

---------------------

1  2/8

Simplify the fraction by dividing by 2 on the top and bottom

1 1/4

6 0
3 years ago
On a piece of paper, use a protractor to construct a triangle with angle measures of 50° and 70º.
Firlakuza [10]
Hello my Kings and Queens the answer would be 60 degrees because all angles of a triangle always add up to 180 degrees
7 0
3 years ago
Read 2 more answers
Write a quadratic function f(x) for the area of a rectangle length x+5 width 3x-7
Semmy [17]
The area of a rectangle is the product of its length and width.
l=x+5 \\
w=3x-7 \\ \\
A=lw=(x+5)(3x-7)=3x^2-7x+15x-35=3x^2+8x-35 \\ \\
\boxed{f(x)=3x^2+8x-35}
7 0
3 years ago
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