Answer:
x = y = - 1
Step-by-step explanation:
y = - 2x - 3
y = 7x + 6 -----> equation 1.
So,
7x + 6 = - 2x - 3
7x + 2x = - 3 - 6
9x = - 9
Divide 9 on both sides,
9x / 9 = - 9 / 9
x = - 1
Substitute x = - 1 in equation 1,
y = 7x + 6
= 7 ( - 1 ) + 6
= - 7 + 6
= 6 - 7
y = - 1
Therefore,
x = y = - 1
B
ASA is short for angle side angle, which you can see from angle B and angle D being congruent (all right angles are congruent), the congruent marks on line BE and line ED, and the vertical angles AEB and DEC.
D is not the answer because B and D are not in the same 'place' when naming. Silly as it is, it counts.
Hope this helps!
A. 0.58 is the corresponding index of the random matrix of 7 criteria for checking the consistency of random judgment.
In probability theory and mathematical physics, a random matrix is a matrix-valued random variable. H. A matrix whose elements are some or all random variables. Many important properties of physical systems can be represented mathematically as matrix problems.
In probability theory and mathematical physics, a random matrix is a matrix-valued random variable. That is, a matrix whose elements are some or all random variables. Many important properties of physical systems can be represented mathematically as matrix problems.
Learn more about matrix here: brainly.com/question/2456804
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Answer:
<u>The correct answer is D. obtuse scalene</u>
Step-by-step explanation:
1. Let's recall that a equilateral triangle has its three sides of the same length. An equilateral triangle is always equiangular. This is not our given triangle.
2. Let's recall that an isosceles triangle has two sides of the same length. This is not our given triangle.
<u>3. Finally, let's recall that in a scalene triangle, none of the sides are the same length. And if one of the given angles is greater than a right angle, measures more than 90 degrees, it is an obtuse triangle. This is our given triangle.</u>
<u>The correct answer is D. obtuse scalene.</u>
Let a = Imani's weekly allownace
She spent half of her allowance, so she has half it left = a/2. She got $4 more from washing the car, so she has a/2 + 4 dollars which totals $12:
a/2 + $4 = $12
a/2 = $8
Solve for a.
