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4 years ago

12

If x-9 is a factor of x2 - 5x - 36, what is the other factor ?

1 answer:

atroni [7]4 years ago

7 0

Answer:

$\boxed{ \bold{ \huge{ \boxed{ \sf{(x + 4)}}}}}$

Step-by-step explanation:

$\sf{ {x}^{2} - 5x - 36}$

Find the two numbers that multiplies to 36 and subtracts to 5

$\dashrightarrow{ \sf{ {x}^{2} - (9 - 4)x - 36}}$

Distribute ( - ) sign through the parentheses

$\dashrightarrow{ \sf{ {x}^{2} - 9x + 4x - 36}}$

Take x as common

$\dashrightarrow{ \sf{x(x - 9) + 4x - 36}}$

Take 4 as common

$\dashrightarrow{ \sf{x(x - 9) + 4(x - 9)}}$

$\dashrightarrow{ \sf{(x - 9)(x + 4)}}$

( x + 4 ) is the other factor of x² - 5x - 36

Hope I helped!

Best regards! :D

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Alinara [238K]

Answer:

$log_{10}(x ) = 4$

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4 years ago

The U.S. Federal Seed Act establishes germination rates for various fruit and vegetable seeds. Watermelon seeds are to meet a 70

babymother [125]

Answer:

Following are the responses to the given question:

Step-by-step explanation:

Level of Significance, $\alpha = 0.05$

Sample Size, $n = 120$

Sample Proportion, $\hat{P} = 0.600$

$z -value = Z_{\frac{\alpha}{2}} = 1.960 \ \ [excel formula =NORMSINV(\frac{\alpha}{2})]$

Standard Error $SE = \sqrt{\frac{\hat{p}(1-\hat{p})}{n}} = 0.0447$

margin of error $E = Z\times SE = 1.960 \times 0.0447 = 0.0877$

When $95\%$ Confidence Interval

Interval Lower Limit $= \hat{p} - E = 0.600 - 0.0877 = 0.5123$

Interval Upper Limit $=\hat{p}+ E = 0.600 + 0.0877 = 0.6877$

7 0

3 years ago

The boss gives all his employers a 7% pay rise. Paul used to earn £8 an hour. How much does he get after the rise? Sandy used to

alexandr1967 [171]

Hi there

Paul get after the rise
8+8×0.07=8.56 per hour

Sandy get after the rise
11,100+11,100×0.07=11,877

Good luck!

7 0

3 years ago

What number is 30 percent of 200

marta [7]

Answer:

$x = 60$

Step-by-step explanation:

<u>Step 1: Make an expression</u>

What number is 30 percent of 200

$200 * 0.3 = x$

<u>Step 2: Multiply</u>

<u /> $200 * 0.3 = x$

$60 = x$

Answer: $x = 60$

6 0

3 years ago

Read 2 more answers

Membership at a local gym increased from 500 members to 800 members in one year. What was the percent of increase?

Tomtit [17]

Answer: 60%

Step-by-step explanation:

(300/500)*100

3 0

4 years ago