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2 years ago

Find the product of (x − 5)2. X2 10x 25 x2 − 10x 25 x2 − 25 x2 25.

Mathematics

2 answers:

Serggg [28]2 years ago

4 0

Answer:

x^2 -10x+25

Step-by-step explanation:

(x − 5)^2

(x-5)(x-5)

FOIL

first x*x = x^2

Outer -5 *x = -5x

inner -5*x = -5x

last -5*-5 =25

Add them together x^2 -5x-5x+25

Combine like terms x^2 -10x+25

jolli1 [7]2 years ago

4 0

Hey there!

(x - 5)^2

= (x - 5)(x - 5)

= x(x) + x(-5) - 5(x) - 5(-5)

= x(x) - 5(x) - 5(x) - 5(-5)

= x^2 - 5x - 5x + 25

COMBINE the LIKE TERMS

= x^2 - 10x + 25

Therefore, your answer is:

x^2 - 10x + 25

Good luck on your assignment & enjoy your day!

~Amphitrite1040:)

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if P(x)=1+6x-5x^2 represents the profit in selling x thousand Boombotix speakers, how many speakers should be sold to maximize p

Rashid [163]

Answer:

600

Step-by-step explanation:

$p(x) = 1 + 6x - 5x^2$

x max = $-b/2a$

a = -5

b = 6

-6/2(-5) = 6/10 = 3/5 = .6

.6 thousand = 600

600 speakers should be sold.

Alternatively, you can check the vertex of the parabola formed.

8 0

3 years ago

Your computer server recently crashed and you need to make changes to a large manual. The manual contains approximately 16,000 w

tensa zangetsu [6.8K]

Answer:

The manual cost that will take to recreate by the firm is $ 90.51

Step-by-step explanation:

Given:

Number of words the manual contains= 16000

Number of words typed by a clerk in one hour and 20 minutes = 4160

To Find:

The total cost for recreating the manual = ?

Solution:

Step 1: Finding the Number of hours is need to type 4160 words :

= $1\frac{20}{60}$ hours

$\\\\=1\frac{1}{3}$ hours

$\\\\=\frac{4}{3}$ hours

So it takes $\frac{4}{3}$ hours to type 4160 word

Step 2 : Finding the Number of hours is needed to type 1 word

= $\frac{4160}{\frac{4}{3}}$

= $4160 \times \frac{3}{4}$

= 3120 words per hour

Step 3 : Finding the Number of hours is needed to type 16000 words

= $\frac{\text{ total number of words}} {\text{ number of words written per hour}}$

Substituting the values

= $\frac{16000}{3120}$

= 5.1282 hours

Step 4 : Finding the cost for recreating the manual.

= number of hours x cost per hour

= 5.1282 x $17.65

= 90.51

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3 years ago

What is the measure for STU?

Vesna [10]

18q+18=180
-18. -18
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8 0

3 years ago

Which of the following expressions results in a positive number?

arlik [135]

Answer:

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Step-by-step explanation:

A negative times a negative always equals a positive.

6 0

3 years ago

Read 2 more answers

Simplify the expression: 2(4 + 6j)

aniked [119]

Answer:

$\boxed{ \bold{ \huge{ \boxed{ \sf{8 + 12j}}}}}$

Step-by-step explanation:

$\sf{2(4 + 6j)}$

Distribute 2 through the parentheses

$\longrightarrow{ \sf{2 \times 4 + 2 \times 6j}}$

$\longrightarrow{ \sf{8 + 12j}}$

Hope I helped!

Best regards! :D

8 0

3 years ago