3 years ago

A certain triangle has two forty-five degree angles. What type of triangle is it?

Mathematics

1 answer:

sleet_krkn [62]3 years ago

5 0

It must be a right triangle since 180° - 45° - 45° = 90°

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Write an inequality relating NM and NL-<br> NM < NL<br> NM<_ NL<br> NM > NL<br> NM>_ NL

spayn [35]

Answer:

NM > LN

Step-by-step explanation:

Here, we want to write an inequality

we should beat it in mind that, the greater the angle that a side of a triangle faces, the greater its length will be relatively

as we can see, the side NM faces the greater angle of 83, relative to the side LN that faces the angle of 56;

So we can conclude that;

NM > LN

6 0

3 years ago

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Find the length of a side of a square if its área is 4/25 cm2

USPshnik [31]

Answer:

2/5cm or 0.4cm

Step-by-step explanation:

Area of square = $Side^{2}$

Thus, Side = $\sqrt{Area}$

= $\sqrt{4/25}$

= 2/5 cm = 0.4cm

4 0

3 years ago

Use determinants to find out if the matrix is invertible.

wariber [46]

Answer:

The matrix is not invertible.

Step-by-step explanation:

We are given the following matrix in the question:

$A =\left[\begin{array}{ccc}-5&0&1\\-1&3&2\\0&10&6\end{array}\right]$

Condition for invertible matrix:

A matrix is invertible if and only if the the determinant is non-zero.

We can find the determinant of the matrix as:

$|A| = -5[(3)(6)-(2)(10)]-0[(-1)(6)-(2)(0)] + 1[(-1)(10)-(3)(0)]\\|A| = -5(18-20)+(-10)\\|A| = 10-10\\|A| = 0$

Since the determinant of the given matrix is zero, the given matrix is not invertible.

5 0

3 years ago

Use synthetic division to divide (x^ 3 + x^ 2 – 40x – 4) ÷ (x – 6)

Marina CMI [18]

The answer is C.

Hope this helps!!

7 0

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How do I solve: 15 - w/4 = 28 (this is 2 step equations)

kenny6666 [7]

First we need to isolate the variable so we add 15 to both sides which is
w/4=43 then we need to multiply by 4 to both sides so its 4w=172
then divide by 4 which is 43 so the answer is w=43

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3 years ago

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