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bija089 [108]
2 years ago
13

Factor completely, show work. x² - 49

Mathematics
1 answer:
Elan Coil [88]2 years ago
4 0

You want to pull out the square roots of each term since they are both perfect squares.

Factor using the difference of squares formula: a2-b2=(a+b)(a-b)

This formula allows the middle term to cancel out.

=x2 - 49

=(x + 7)(x - 7)

ANSWER: (x + 7)(x - 7)

Hope this helps! :)

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In the floor tile pattern, the figure is a square and the two triangles are congruent.
Licemer1 [7]

Answer:

7.1

Step-by-step explanation:

Since it is a square you can use the Pythagorean theorem (a²+b²=c²) by filling in what you know. a²=5 and b²=5 so you have 5²+5²=c². This simplfies to 25+25=c². Now you simplify again to get 50=c². Finally you have to square root everything because the equation can't end in c², it has to be the most simplified it can be. This equals ≈7.1

8 0
2 years ago
The measure of angle A is 4 degrees greater than the measure of angle B. The two angles are complementary. Find the measure for
Elenna [48]
Sorry but i only know the answer for the 1st question.
--------------------------
If the angles are complementary they measure 90°.
1st find half of 90
which is 45.
Find 4 more than 45.
which is 49°
then subtract 90-49=41
so the measurement of the 2 angles are
49 and 41
Hope it helps!!
7 0
3 years ago
(-4,1)and(3,6) Find the slope of the line passing through the pair of points or state that the slope is undefined. Then indicate
Bezzdna [24]

Answer:

The slope is 5/7 and it rises

Step-by-step explanation:

(-4,1) and (3,6)

6 - 1 / 3 - (-4)

5 / 3+4

= 5 / 7

and it rises since the answer is positive

4 0
2 years ago
Read 2 more answers
10(a-2.5+0.56b) is this equivalent to 10a - 25+56b
kirill115 [55]

Hey there!

10(a - 2.5 + 0.56b)

= 10(a) + 10(-2.5) + 10(0.56b)

= 10a - 25 + 5.6b

= 10a + 5.6b - 25

Therefore, your answer is: 10a + 5.6b - 25

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

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2 years ago
Daniel worked for 2 1/3 hours and earned $28.20. How much would he make if he worked 5 1/4 hours?
OleMash [197]

Answer:

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