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sweet-ann [11.9K]
3 years ago
5

The sum of two acute angles is an obtuse angle. always, sometimes, or never true.​

Mathematics
2 answers:
Greeley [361]3 years ago
6 0

Answer:

Sometimes

Step-by-step explanation:

We can have two acute angles, 20 and 30, 20+30=50, which is still acute,

We can have two acute angles, 45 and 45, 45+45=90, which is neither acute nor obtuse.

We can have two acute angles, 80 and 80, 80+80=160, which is obtuse.

alukav5142 [94]3 years ago
5 0

Answer:

sometimes

Step-by-step explanation:

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Write the equation of the line in point slope form that travels through the points (0,5) and (3,7)
Bond [772]

Answer:

y=2/3x+5

Step-by-step explanation:

to find the slope you subtract the y's from each other, and the x's from each other then put the y over the x, bam that's the slope. the y intercept is 5 cause the point is (0,5)

4 0
3 years ago
Please anyone help me answer this question am giving the brainliest
DochEvi [55]

Answer:

(-3/2x+1) + (3/x-1)

Step-by-step explanation:

Dont put the answer in parenthesis, I just did that to seprate it so it was easier to read. If you need it to be put in word form for it to be easier for you to understand, its "negative three divided by two x plus one, plus 3 divided by x minus 1"

First, rewrite the expression as 3x+6/2x^2+x-2x-1

Then, factor the expression, 3x+6/x*(2x+1)-(2x+1) (*=multiply)

Then, write a new fraction for each factor in the denominator, then write a new fraction, 3x+6/(2x+1)*(x-1) to (A)/2x+1 + B/x-1)

Then write terms in the numerators, for now we will use A and B.

Now we set the sum of the fractions equal to the original fraction.

3x+6/(2x+1)*(x-1) = A)/2x+1 + B/x-1).

Then reorder and group the terms, giving you 3x+6=(A+2B)x+(-A+B).

Now equate the coefficiants, {6= -A+B, 3= A+2B

Then substitute back, (A, B)=(-3, 3)

Now finally, just rewrite the fraction. (-3/2x+1) + (3/x-1)

Hope this helps! Sorry its kind of long.

6 0
2 years ago
Use the net to find the surface area of the cylinder, give your answer in terms of pi.
postnew [5]

Answer:

The correct answer is last option

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Step-by-step explanation:

Formula:

Surface area of cylinder = 2πr² + 2πrh

Where r is the radius and h is the  height of cylinder

To find the surface area of cylinder

Here r = 4 yd and h = 9yd

Surface area =  2πr² + 2πrh =  2π * 4 * 4 + 2π *4 *9

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The correct answer is last option .

5 0
3 years ago
Read 2 more answers
A. Write the linear system as a matrix equation
umka21 [38]
AX = B

1 -1 -1 x 0
0 -2 -1 y = -2
2 1 0 z -4

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y = A^-1 B
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7 0
2 years ago
FOR 5 POINTS AND BRAINLIEST...<br> 18x – 4(9 – 5x) + 14<br> PLEASE SIMPLIFY AND SHOW YOUR WORK!
REY [17]

Answer:

38x-22

Step-by-step explanation:

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