3 years ago

Given a∥b , and c is not parallel to a or b, which statements must be true?

Mathematics

1 answer:

abruzzese [7]3 years ago

5 0

Answer:

The first and third answers are true.

Step-by-step explanation:

angles 3 and 7 are corresponding angles, and 1 and 8 are alternate exterior angles.

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Which set of side lengths forms a right triangle?

Pani-rosa [81]

Answer:

15,36,39

Step-by-step explanation:

15² + 36² = 39²

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3 years ago

If A, B, and Care 2x2 matrices; and det(A) = -2, det(B) = -3, and det(C)=-4 then compute: det(4C^TA^-1 C^TB^3) = 0 Official Time

almond37 [142]

Answer with explanation:

|A| = -2

|B|= -3

|C| = -4

$|4 C^TA^{-1}C^TB^{3}|=4 |C||A|^{-1}|C||B|^3, \text{as}|C^T|=|C|,|A^n|=A^n\\\\=4 \times (-4) \times (-2)^{-1} \times (-4) \times (-3)^3\\\\=4 \times (-4) \times \frac{-1}{2} \times (-4) \times (-27)\\\\=-1728 \times \frac{-1}{2} \\\\=864$

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3 years ago

T U S If T is the midpoint of SU, what are ST, TU, and SU? . 9x 6x + 30

Vilka [71]

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4 years ago

Calculate 4 raise to power 2 multiply by 5 raise to poer 2 minus 18 raise to power 2

Paladinen [302]

Answer:

Step-by-step explanation:

4^2 x 5^2 - 18^2

PEMDAS is our acronym for order of operations: Parentheses, exponents, multiplication, division, addition, subtraction.

Since we have no parentheses, we'll calculate the numbers and exponents (PEMDAS) first. "to the power of 2" is also called "squared" and means multiplying that number by itself.

(4x4) x (5x5) - (18x 18)

=16 x 25 - 324

Now we multiply: (PEMDAS)

= 400 - 324

then subtract: (PEMDAS)

=76

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3 years ago

Read 2 more answers

2=3x/5 + 1 12 -5 -5/3 5/3

castortr0y [4]

5/3 would be the answer