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iris [78.8K]
3 years ago
5

Which is a factor of 144 − 49x2? HELP PLEASE

Mathematics
2 answers:
rewona [7]3 years ago
8 0
(12 + 7x)(12 - 7x) the answer to the question
Andreyy893 years ago
6 0

Answer:

Factors (12 - 7x) ( 12 +7x ) .

Step-by-step explanation:

Given  : 144 − 49x².

To find : Which is a factor .

Solution : We have given 144 − 49x²

We can write 144 = (12)².

                       49 = (7)².

Then  (12)² - (7x)².

By the formula (a)² - (b)² = (a-b) ( a+b) .

Here, a = 12 ,  b = 7x

 (12)² - (7x)² = (12 - 7x) ( 12 +7x ) .

Therefore, Factors (12 - 7x) ( 12 +7x ) .

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Who can finish this for me
Paladinen [302]

Answer:

<h2>-  {x}^{4}  - 7 {x}^{3}  + 8</h2>

Step-by-step explanation:

(5 - 5 {x}^{4}  -  {x}^{3} ) - (6 {x}^{3}  - 4 {x}^{4}  - 3)

Remove unnecessary parentheses

5 - 5 {x}^{4}  -  {x}^{3}  - (6 {x}^{3}  - 4 {x}^{4}  - 3)

When there is a (-) in front of an expression in parentheses, change the sign of each term in the expression

5 - 5 {x}^{4}  -  {x}^{3}  - 6 {x}^{3}  + 4 {x}^{4}  + 3

Collect like terms

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Add the numbers

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Use the commutative property to reorder the terms

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Hope this helps...

Best regards!!

8 0
4 years ago
PLz help will mark brainliest +25pts
Paha777 [63]

Answer:

54.8 Nm

Step-by-step explanation:

Torque is the cross product of the radius vector and force vector:

τ = r × F

Another way to write it is the product of the radius and force magnitudes times the sine of the angle between the vectors.

τ = rF sin θ

Here, r = 0.366 meters and F = 155 Newtons.  F is in the +y direction, and r is 15° below the +x axis, so the angle between the vectors is 90° − 15° = 75°.

τ = (0.366 m) (155 N) (sin 75°)

τ = 54.8 Nm

7 0
3 years ago
If a restaurant bills totals $85, what amount should be left as a 15$ tips A. $97.75 B. $11.90 C.$12.25 D. $12.75
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If the total bill is $85, and you want to leave a 15% tip, then you can calculate it as follows:

85 * 15%

= 85 * 15/100

= 85 * 0.15

= 12.75

The amount that should be left as a tip is D. $12.75.
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4 years ago
Can I please get with the last math question??
Katyanochek1 [597]

Elww Mate..........

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3 years ago
Car A covers 100 miles in 120 minutes, while car B covers 300 miles in 5 hours. How do car A and car B speeds compare (Hint: 60
Korolek [52]

Answer:

option D. Car A has the same speed as car B.

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3 years ago
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