All categories

3 years ago

Factoring trinomials Select two for each

Mathematics

1 answer:

JulijaS [17]3 years ago

4 0

Answer:

x² - 3x - 10 = (x - 5) (x + 2)

x² - 3x - 18 = (x + 3) (x - 6)

Step-by-step explanation:

x² - 3x - 10

x² + 2x - 5x - 10

x(x + 2) - 5(x + 2)

(x - 5) (x + 2)

x² - 3x - 18

x² - 6x + 3x - 18

x(x - 6) + 3(x - 6)

(x + 3) (x - 6)

-TheUnknownScientist

You might be interested in

Anyone know how to do this?

Serga [27]

Answer:

yes its B mark brainliest please

Step-by-step explanation:

IT IS

4 0

3 years ago

Verify the identity. Please show your work.

m_a_m_a [10]

Step-by-step explanation:

To prove :

( 1 - sin x ) ( 1 + sin x ) = sec² x

LHS : -

( 1 - sin x ) ( 1 + sin x )

Formula / Identity : -

( a - b ) ( a + b ) = a² - b²

Here,

a = 1

b = sin x

( 1 - sin x ) ( 1 + sin x )

= 1 - sin² x

Identify : -

sin² θ + cos² θ = 1

cos² θ = 1 - sin² θ

Similarly,

1 - sin² x

= cos² x

= RHS

Hence verified.

5 0

3 years ago

A scuba diver is 31 feet below the surface of the water. She dives down an additional 16 feet. How far would she have to rise to

Karolina [17]

Answer: 47 feet

Step-by-step explanation:

Originally the scuba driver was 31 feet below the surface of the water.

She then dives down a further 16 feet. The depth below the surface is now:

= 31 + 16

= 47 feet

The Scuba driver is now 47 feet below the surface of the water so if she had to come back to the surface, she would have to rise that 47 feet to get to the surface.

6 0

3 years ago

there are 318 fictiom books in the class library. the number of nonfiction booka os 47 less than the number of fiction books. ab

Mama L [17]

318-47= 271 There are 271 non-fiction books in the library. just subtract 47 from 318 to get the answer.

7 0

4 years ago

Read 2 more answers

Sea World has 9 aquariums with small fish in them and the number of fish in each tank are shown below: 45, 10, 48, 19, 36, 25, 6

crimeas [40]

Answer:

Step-by-step explanation:

To find the range, subtract the lowest number from the highest number

Arrange the numbers from least to greatest

45, 10, 48, 19, 36, 25, 63, 14, 37

10, 14, 19, 25, 36, 37, 45, 48, 63

The highest number is 63, and the lowest is 10

Now, subtract the lowest (10) from the highest (63)

highest - lowest

63-10

So, the range of the number of fish is 53

4 0

4 years ago