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3 years ago

A(-7, 4), Β( 1, 2), C(9, -8), D(1, -6)

Mathematics

1 answer:

goblinko [34]3 years ago

5 0

Answer:

the answer is.....

Step-by-step explanation:

make me brainliest.....

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Simplify each expression then factor the expression 14-28t-5(7+10t)

ludmilkaskok [199]

Answer:

Simplified: -21-98t

Factored: -7(14t+3)

Step-by-step explanation:

The given expresion is:

14-28t-5(7+10t)

We expand the parenthesis to get:

$14 - 28t -35 - 70t$

We group like terms to get:

$14 -35 - 28t- 70t$

We combine similar terms to get:

$- 21- 98t$

We now factor to obtain:

$- 21- 98t = - 7(14t + 3)$

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4 years ago

the regular price of a shirt is $40 during a sale a discount of 20% is given calculate the amount a customer pays for d shirt

Norma-Jean [14]

Answer:

$32

Step-by-step explanation:

0.8*40

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3 years ago

Read 2 more answers

Which functions are vertical stretches of the square root function? Check all that apply.

Amiraneli [1.4K]

Answer:

Step-by-step explanation:

f(x) = √16x

f(x) = 3/8 √9x

f(x) = 6/5 √x

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3 years ago

Please help!<br> Remember what we know about vertical angles and solve for x. <br> Answer:

aleksklad [387]

Please help!
Remember what we know about vertical angles and solve for x.
Answer:

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3 years ago

There are 10 employees in a particular division of a company. Their salaries have a mean of $70,000, a median of $55,000, and a

Sindrei [870]

Solution:

a. original $\bar{x} =70,000 =\frac{\sum x}{n}$

$\therefore \sum x = 70,000 \times 10 =700,000$

$modified \sum x = 700,000 - 100,000 + 1,000,000 = 1,600,000$

$modified \bar{x} = \frac{1,600,000}{10} =160,000$

b. Median remains the same.

c. $original s^{2}=(20,000)^{2}=400000000=\frac{1}{n-1}[\sum x^{2}- n\bar{x}^{2}]$

$\therefore orig. \sum x^{2} = (10-1)(20000)^{2} + 10(70000)^{2}$

$=52600000000$

$mod. \sum x^{2} = 52600000000-100000^{2} +1000000^{2}$

$=1.0426E+12$

$mod.s^{2} = \frac{1}{n-1} [\sum x^{2} - n\bar{x}^{2}]$

$=\frac{1}{9} [1.0426E+12 - 10 \times 160000^{2}]$

$=87400000000$

$modified s= \sqrt{s^{2}} =\sqrt{87400000000} =295634.91$

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4 years ago