PLEASE HELP QUICK
Which expressions are equivalent to ? Check all that apply. 81 8-1 9-2 98 94 98 910 9-6.93 95.9-7​

Answer:

3x + y = -3

Step-by-step explanation:

(-4, 9), (2, -9)

(x₁, y₁)  (x₂, y₂)

       y₂ - y₁      -9 - 9          -18          -18

m = ----------- = ----------- = ---------- = ------- = -3

       x₂ - x₁        2 - (-4)      2 + 4        6

y - y₁ = m(x - x₁)

y - 9 = -3(x - (-4)

y - 9 = -3(x + 4)

y - 9 = -3x - 12

   +9           +9

---------------------

y = -3x - 3

Standard Form:

-3x + y = -3

I hope this helps!

1) 3:00 to 4:00

2) 103

The required solution is 4:00 to 5:00 and  87  customers.

It is required to fill in the blanks.

The arithmetic refers to working with numbers by doing addition, subtraction, multiplication, and division. Fractions, decimals, percentages, fractions, square root, exponents, and other arithmetic operations are used to achieve mathematical simplifications.

Given:

According to question , Initially, there were 75 customers.

From 1:00 to 2:00, a total of 30 more people entered, meaning there were

 75 + 30 - 12

= 93 people.

From 2:00 to 3:00, a total of 14 more people entered, meaning there were

93 + 14 - 8  

= 99 people.

From 3:00 to 4:00, a total of 18 people entered, meaning there were

 99 + 18 - 30

= 87 people.

4:00 to 5:00   :  If the store does not accept any more customers except those who are already inside then, all 87 must leave between 4:00 to 5:00 in order to left from the store by 5:00.

Therefore, the required solution is 4:00 to 5:00 and  87  customers.

Learn more about arithmetic here:

brainly.com/question/28304284

#SPJ1

Answer:

\(-45y + 70\)

Step-by-step explanation:

Step 1:  Combine like terms

\(-30y + (-15y) + 70\)

\(-30y - 15y + 70\)

\(-45y + 70\)

Answer: \(-45y + 70\)

-30y+(-15y)+70 is the same as

-30y-15y+70

-45y+70

hope helpful ~

The functions f(x)=8x^2+x+3, g(x)=4x-1, h(x)=3x+6 C.Over the interval [0, 2], the average rate of change of f and h is less than the average rate of change of g is true.

What is increasing function?

⇒ The function is said to be increasing if the y value increases as the x value increase over a given range

What is average rate of change?

⇒An average rate of change function is a process that calculates the amount of change in one item divided by the corresponding amount of change in another

As x approaches infinity the value of f(x) eventually exceeds the value of both g(x) and h(x)

And it is true for the interval [0,2]

The faster the growth rate higher the average rate of change

learn more about increasing function here :

https://brainly.com/question/14330051

#SPJ1

Answer:

C.

Over the interval [0, 2], the average rate of change of f and h is less than the average rate of change of g.

The probability that at least two of the students were born on the same day of the week is 0.6501.

Probability refers to potential. A random event's occurrence is the subject of this area of mathematics.

The range of the value is 0 to 1. Mathematics has incorporated probability to forecast the likelihood of various events.

The degree to which something is likely to happen is basically what probability means.

Given:

Total students = 4

So, Total number of possible outcomes = 7 x 7 x 7 x 7

Number of ways of choosing 4 from 7 = C(7, 4) = 35

So, number of outcomes in which no day is repeated

= 4! x 35 = 840

P(girls all born on different days) = 840/(2401) = 0.3498

P(at least two born on same day) = 1 - 0.3498

                                                       = 0.6501

Learn more about Probability here:

https://brainly.com/question/30034780

#SPJ1

Answer:

Step-by-step explanation:

The growth rate of the investment is represented by the constant multiplier in the exponential term of the formula y = 20000(1.035)x. In this case, the constant multiplier is 1.035, which represents the annual growth rate of the investment account.

To calculate the growth rate as a percentage, we can subtract 1 from the constant multiplier, and then multiply the result by 100.

So, the growth rate of the investment is:

1.035 - 1 = 0.035

0.035 * 100 = 3.5%

Therefore, the growth rate of the investment is 3.5%.

Answer: Option(C) is correct option

Explanation:

Margin of error is the factor that occurs in survey for determining random sampling error. It indicates about confidence interval (CI) through describing difference occurring in poll result and actual population value.If there is high margin of error, then confidence is low because poll result will not reflect the actual population result collected through survey.

According to the question, researcher would try to get small margin of error so that lower confidence interval can be acceptable because large confidence interval(CI) will indicate more margin of error.

Other options are incorrect because small margin of error cannot produce increment in confidence or usage of large confidence.Large confidence interval will result in large margin of error. Thus, the correct option is option(c).

Answer:

Find the exact value using trigonometric identities.

100

Step-by-step explanation:

The exact value of 2 divided by (0.01) 2 is 20000.

We are given that;

2 divided (0.01)2

Now,

To find the exact value of 2 divided by (0.01) 2, we can use the following steps:

Rewrite 0.01 as a fraction: 0.01 = 1/100

Square both the numerator and the denominator: (0.01) 2 = (1/100) 2 = 1/10000

Flip the fraction and multiply by 2: 2 / (0.01) 2 = 2 x 10000/1 = 20000

Therefore, by algebra the answer will be 20000.

More about the Algebra link is given below.

brainly.com/question/953809

#SPJ6

The required 7,000 gallons of gasoline which are 9% ethanol must be added to 2,000 gallons of gasoline with no ethanol to get a mixture that is 7% ethanol.

The ratio can be defined as the proportion of the fraction of one quantity towards others. e.g.- water in milk.

Here,
To solve the problem, we can use the following formula:

(amount of ethanol in the final mixture) / (total amount of gasoline in the final mixture) = 7%

To find the amount of ethanol in the 2,000 gallons of gasoline with no ethanol:

ethanol in 2,000 gallons of gasoline with no ethanol = 0 × 2,000 = 0 gallons

Then, find the amount of ethanol in the final mixture:

ethanol in final mixture = (0.09x + 0 * 2,000) / (x + 2,000)

Notice that we use 0 gallons for the ethanol in the 2,000 gallons of gasoline with no ethanol, since it contains no ethanol.

Ethanol in the final mixture / total amount of gasoline in the final mixture = 7%

(0.09x + 0) / (x + 2,000) = 0.07

0.09x + 0 = 0.07(x + 2,000)

0.09x = 0.07x + 140

0.02x = 140

x = 7,000

Therefore, 7,000 gallons of gasoline which is 9% ethanol must be added to 2,000 gallons of gasoline with no ethanol to get a mixture that is 7% ethanol.

Learn more about ratios here:

brainly.com/question/13419413

#SPJ1

Answer:

\(\huge\boxed{\sf \frac{2\sqrt{7}-4 }{3}}\)

Step-by-step explanation:

This is a rationalizing denominator question.

\(= \displaystyle \frac{2}{2+\sqrt{7} } \\\\Multiply \ and \ divide \ by \ conjugate \ 2 - \sqrt{7} \\\\= \frac{2}{2+\sqrt{7} } \times \frac{2-\sqrt{7} }{2-\sqrt{7} } \\\\\underline{\sf Using \ formula:}(a+b)(a-b)=a^2-b^2\\\\= \frac{2(2-\sqrt{7}) }{(2)^2-(\sqrt{7})^2 } \\\\= \frac{4-2\sqrt{7} }{4-7} \\\\= \frac{4-2\sqrt{7} }{-3} \\\\= \frac{-(4-2\sqrt{7}) }{3} \\\\= \frac{2\sqrt{7}-4 }{3} \\\\\rule[225]{225}{2}\)

Answer:

ajoskne kksiebndk hbsmoirvx abpdhr redaodona been be beef be nedid jso jd jdmt odoen

hi

line equation is :  mx+p  

so if a  line goes throught  A(4;6) and with m = 3   so you have  3 *(4) +P = 6

so :   12 +P = 6

            P = 6-12

            P = -6

line equation is  :   3m -6

Answer:

what is your question?

Step-by-step explanation:

Answer:

F = 1/5

Step-by-step explanation:

Suppose that quiz scores in a beginning statistics class have a mean of 7.1 with a standard deviation of 0.4, the range in which at least 75% of the data will reside is from 6.3 to 7.9.

Chebyshev's Theorem is a statistical tool that provides a range for how much data is likely to fall within a certain number of standard deviations from the mean.

Specifically, it tells us that, for any set of data, no matter how it is distributed, at least 1 - (1/k^2) of the data will fall within k standard deviations from the mean, where k is any positive number greater than 1.

In this case, we want to find the range in which at least 75% of the data will reside. We can use Chebyshev's Theorem to determine the minimum value of k that will give us this range. We know that at least 75% of the data should fall within two standard deviations from the mean, so we can set k = 2.

Using Chebyshev's Theorem, we can say that at least 1 - (1/2^2) = 75% of the data will fall within 2 standard deviations from the mean. The standard deviation is 0.4, so two standard deviations would be 2 * 0.4 = 0.8.

To learn more about range click on,

https://brainly.com/question/30657711

#SPJ4

Answer:

33

Step-by-step explanation:

Substitute f(-3) in the problem and you'll get f(-3) = -x³ + x² + x.

Substitute the given value into the function and evaluate.

Answer:

33.

Step-by-step explanation:

f(x) = -x³ + x² + x.

f(-3) = -(-3)³ + (-3)² + (-3)

= -(-27) + (9) - 3

= 27 + 9 - 3

= 36 - 3

= 33.

Hope this helps!

The value of √7 to the nearest hundredth is 2.65.

A square root of a number x is a number y such that y² = x; in other words, a number y whose square is x.

Here, given number;

     y = \(\sqrt{7}\)

    y = 2.64575....

    y = 2.65

Thus, the value of √7 to the nearest hundredth is 2.65.

Learn more about Square root from:

https://brainly.com/question/3120622

#SPJ1

The mass of the CO2 produced IS 630 Kg

Gasoline is a kind of fuel that is composed mostly of isooctane. In most engines, gasoline is widely used hence the demand for the product is high. We know that the combustion of an alkane (of which gasoline is one) would produce carbon dioxide and water according to a balanced reaction equation.

The balanced reaction equation for the combustion of gasoline is shown in the image attached to this answer.

Since  a Puerto Rico hospital uses 3 gallons of gasoline per hour, and there are 24 hours in a day, it the follows that 72 gallons of gasoline are used per day. This 72 gallons is the equivalent of 272.88 L

Now;

Given that the density of gasoline = 748.9 g/L

Mass of gasoline = 748.9 g/L * 272.88 L = 204 Kg

Number of moles of gasoline =  204 * 10^3/114 g/mol = 1789.5 moles

If 2 moles of gasoline produces 16 moles of CO2

1789.5 moles produces  1789.5 moles * 16 moles/2 moles = 14316 moles

Mass of CO2 =  14316 moles * 44 g/mol = 630 Kg

Learn more about gasoline:https://brainly.com/question/13402652?

#SPJ1

Answer:

Answer:

\(5 { \times 54}^{2} \)

Answer:

3 not including tax, if it needs to include tax i dont know

Answer:

\( \frac{6}{x} = 7 - 2x \\ 6 = 7x - 2 {x}^{2} \\ 2{x}^{2} - 7x + 6 = 0\)

\(\huge\text{Hey there!}\)

\(\huge\textbf{Equation:}\)

\(\mathsf{8,903 = e^{5x}}}\)

\(\huge\textbf{Simplify:}\)

\(\mathsf{8,903 = e^{5x}}}\)

\(\mathsf{e^{5x} = 8,903}}\)

\(\huge\textbf{Solve for the exponent:}\)

\(\large\textsf{We get: }\downarrow\\\\\mathsf{2.718282^{5x}=8903}\)

\(\huge\textbf{Take the logarithm from both sides:}\)

\(\mathsf{log(2.718282^{5x}) = log(8,903x)}\)

\(\large\textsf{We get:}\\\\\mathsf{5x \times log(2.718282)=log(8903)}\)

\(\huge\textbf{Simplify it:}\)

\(\mathsf{5x = \dfrac{log(8903)}{log(2.718282)}}\)

\(\large\textsf{We get: }\\\\\mathsf{5x = 9.094143}\)

\(\huge\textbf{Divide 5 to both sides:}\)

\(\mathsf{\dfrac{5x}{5} = \dfrac{9.094143}{5}}\)

\(\huge\textbf{Simplify it:}\)

\(\mathsf{x= \dfrac{9.094143}{5}}\)

\(\mathsf{x = 1.818829}\)

\(\mathsf{x \approx 2}\)

\(\huge\textbf{Therefore, your answer should be:}\)

\(\huge\boxed{\mathsf{x =}\frak{\ 1.818829}}\huge\checkmark\)

\(\large\textbf{Or if you're estimating your answer}\downarrow\)

\(\huge\boxed{\mathsf{x \approx }\frak{\ 2}}\huge\checkmark\)

\(\huge\text{Good luck on your assignment \& enjoy your day!}\)

~\(\frak{Amphitrite1040:)}\)

Answer:

A. has a right angle

thats one

Answer:

I think it is A and D. Not 100% sure tho.

Answer:

Step-by-step explanation:

If they had $11: Fred gets $3, George gets $8.

So the ratio is:  3:8

Answer:

2/8 = 1/4 = 0.25

Step-by-step explanation:

f(x) = x - 5 ln(x)

Get the derivative:

f'(x) = 1 - 5/x

Find the critical points:

• f'(x) = 1 - 5/x = 0   ->   5/x = 1   ->   x = 5

• f'(x) is undefined for x = 0, but that's outside the domain of f(x)

Get the second derivative:

f''(x) = 5/x ^2

Check the sign of the second derivative at the critical point x = 5:

f'' (5) = 5/5^2 = 5/25 = 1/5 > 0

Since the second derivative is positive at this point, this means x = 5 is a local minimum.

Check the value of f(x) at the critical point as well as the endpoints of the given domain:

f (5) = 5 - 5 ln(5) ≈ -3.407

f (1/5) = 1/5 - 5 ln(1/5) ≈ 1.809

f (10) = 10 - 5 ln(10) ≈ -1.513

So we have

• absolute maximum = 1/5 - 5 ln(1/5) at x = 1/5

• absolute minimum = 5 - 5 ln(5) at x = 5

The absolute maximum value is  f(5)=5−5ln(5), and this occurs at x equals 5

The absolute minimum value is  f(1/5)= 1/5−5ln(1/5), and this occurs at x equals 1/5

Given the function f(x)=x−5ln(x),

We are to find the absolute minimum and maximum value of the function

At the turning point f'(x) = x - 5ln(x)

f'(x) = 1 - 5/x

0 = 1 - 5/x

-5/x = -1

-x = -5

x = 5

Find the second derivative of the function;

f''(x) = -5/x²

Substitute the value of x = 5 into the second derivative function to have:

f''(5) = -5/5² = 1/5

Since f''(5) = 1/5 < 0, this is the local maximum and the point x = 5 is the absolute minimum

The absolute maximum value is  f(5)=5−5ln(5), and this occurs at x equals 5

The absolute minimum value is  f(1/5)= 1/5−5ln(1/5), and this occurs at x equals 1/5

Learn more here: https://brainly.com/question/19921479

-2+14+17 ??

like in row 2, its 12-10=2 and 20-18=2

row 3, 10+14=24 and 18+14+32

row 4, 24+17=41 and 32+17=49

might be wrong so sorry if its wrong

good luck !

also -2+14+17=29

12+29=41

20+29=49

all connects... might work