74y−8−78y=−4y−8 how many solutions

Answer:

Negative line

Step-by-step explanation:

Going up is positive (think in going uphill)

Going down is negative

Answer: C) 8.1 x 105

Answer:

12.40

Step-by-step explanation:

\(223.20 \div 18\)

that will give you the answer of 12.40 for each unit.

Answer:

Step-by-step explanation:

1 box costs x amount

18 boxes cos 223.20

Cross multiply

223.20 * 1 = 18 x

Divide by 18

223.20 / 18 = 18x / 18

x = 12.40

Cost of 1 box is 12.40

Researchers engage in experimentation to exercise maximum control over the factors they are interested in studying.

Generally, experimenter trials are used to control the study's variables. The experimental approach entails changing one variable to see if it affects another variable. This approach uses controlled exploration methods and arbitrary subject selection to test a thesis.

For illustration, experimenters might be interested in changing how colorful visual patterns may affect our perception. They might also consider whether specific actions can enhance memory. Multitudinous behavioral issues are the subject of trials, some of which include cognition, emotion, memory, perception, and sensation.

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Using the binomial distribution, it is found that there is a 0.0368 = 3.68% probability that the teacher first draws Milani's name as the 7th student.

The formula is:

\(P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}\)

\(C_{n,x} = \frac{n!}{x!(n-x)!}\)

The parameters are:

In this problem, there are 20 students, hence in each question the probability that Milani's name is called is p = 1/20 = 0.05.

The probability that the teacher first draws Milani's name as the 7th student is P(X = 0) when n = 6(none during the first six) multiplied by 0.05(called during the seventh), hence:

P(X = 7) = (0.95)^6 x 0.05 = 0.0368.

0.0368 = 3.68% probability that the teacher first draws Milani's name as the 7th student.

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Answer:

its 13

Step-by-step explanation:

are u try to find out what x and y equal

Answer:

the answer is 83.20 dollars

Answer:

22 gallons

Step-by-step explanation:

First make the fractions match by finding a common denominator so they are easier to hand.  1/6 can be used as the common denominator so you'll have to convert 2/3.  Multiply the top and bottom by 2 and you'll have 4/6.

So now you know by adding 11 gallons, you ended up with a total of 4/6 of a full container.  If you subtract off what was in the tank originally ( 1/6 ), you'll know how much of the tank got filled with the 11 gallons.

4/6 - 1/6 = 3/6       3/6 is equal to 1/2

So now you know 11 gallons is equal to 1/2 of the container.

So the tank will hold twice as much as that or 22 gallons.

Answer:

I think its 3x+ 1 2/3

Step-by-step explanation:

hope it helps

Answer:

F(x) = 1/x^2

Step-by-step explanation:

F(x) = 1/x^2 is

y = 1/x^2

graph goes up to 10 each side

plug in 1,2,3,4,5,6,7,8,9,10 for x and see what y looks like

when x is  1,2,3,4,5,6,7,8,9,10

y is 1,1/4,1/9,etc

(a) The joint probability distribution of the two points will be 1/x, 0<x<1, 0<y<1

(b) The expectation of the product of the two points will be 1/6

(c) The marginal distribution of the point your friend picks will be (-1/2) lny^2

We have, X=(0,1)

Y | X=X=(0, X)

a) Let f(x,y) be the joint probability distribution of the two points will be:

f(X)=1

f(Y|X)=1/x

\($$\begin{aligned}& f(x, y)=f(X) f(Y \mid X=x)=1 / x, 0 < x < 1,0 < y < x\end{aligned}$$\)

b) Let E(XY) be the expectation of the product of the two points.

\($$\begin{aligned}E(XY)=& \int_0^1 \int_0^x \frac{x y}{x} d y d x=\frac{1}{6} \quad \text { (Decimal : } 0.16667 \ldots \text { ) }\end{aligned}$$\)

c) Let f(y) be the marginal distribution of the point your friend picks.

So, the value of f(y) will be:

\($$\begin{aligned}& \mathrm{f}(\mathrm{y})= \\& \int_y^1 \frac{1}{x} d x=-\frac{1}{2} \ln \left(y^2\right)\end{aligned}$$\)

d)for 0<y<1

\($$\begin{aligned}& f(y) > =0 \\& \int_0^1-\frac{1}{2} \ln \left(y^2\right) d y=1\end{aligned}$$\)

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Answer:

Frazer is the 8kg and Tyler is 15 kg.

Step-by-step explanation:

Total 23kg. Take away the 7kg, that Tyler weighs more, is 16.

Half the 16 to get 8.

please mark as the brainliest

Tyler and frazer weigh a total of 23kg then Frazer weighs 8 kg and Tyler weighs 15 kg.

Now assume Frazer's weight as x.

According to the problem, Tyler is 7kg heavier than Frazer.

Hence, Tyler's weight will be x + 7.

Now We know that the total weight of both of them is 23 kg.

Therefore, the equation will be:

x + (x + 7) = 23

Simplifying the equation, we get:

2x + 7 = 23

Now, subtracting 7 from both sides of the equation, we get:

2x = 16

Dividing both sides by 2,

x = 8

So, Frazer weighs 8 kg.

Now, we can calculate Tyler's weight as:

x + 7 = 8 + 7 = 15 kg

Therefore, Tyler weighs 15 kg.

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Answer:

4 questions

Step-by-step explanation:

90% is the same as multiplying a number by 0.9. Let's say the number of questions on the quiz is x. This means the amount she got right was 0.9x. We are given this is 36, so we can set them equal and simplify:

0.9x = 36

x = 40

She must have gotten 40 - 36, or 4 questions wrong.

The lines that are parallel and the converse theorem that justifies each statement are:

4. a. x║y

b. AEA converse.

5 a. a║b

b. CIA converse.

If two alternate exterior angles on two lines are said to be congruent to each other, the two lines they lie on are proven to be parallel lines based on the alternate exterior angles converse (AEA).

If two interior angels on the same side of a transversal are congruent to each other, the lines they are found on can be proven to be parallel lines based on the consecutive interior angles converse (CIA).

Therefore, we have the following deductions:

4. a. If <9 ≅ <15, then the lines that are parallel are, x║y

b. The correct justification for this is, AEA converse.

5 a. If m<3 + m<10 = 180°, then the lines that are parallel are, a║b

b. The correct justification for this is, CIA converse.

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Answer:

\(g(x) = {2x}^{2} + x - 3\)

Answer:

\(g(x) = {2x}^{2} + x - 3\)

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The line passes through the same point on figure A and D.

From the figure, we have the original shape to be figure E

The center point of figure E is the origin

This means that a line drawn from the origin that passes through point A must pass through the same point on the shape

From the figure, the line passes through the same point on figure A and D.

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Answer: x= 15

Step-by-step explanation: So to prove these two lines A and B are congruent the angles must line up which mean rules of complimentary, Supplementary and alternating angles apply. For angles 2 and 4 due to our alternating angles rule they add up to equal 180 so in math

2x+10+4x+80 = 180  or  6x+90=180  where x = 15

The exact value of y is \(\sqrt{3}\)

The correct answer is an option (c)

Let us assume that in the attached diagram of right triangle the angle A measures 45 degrees.

Here, the hypotenuse measures \(\sqrt{6}\)

We know that in right triangle, the sine of angle θ is nothing but the ratio of opposite side of angle θ to the hypotenuse.

Consider the sine of angle A

sin(A) = opposite side of angle A / hypotenuse

sin(45°) = y / ( \(\sqrt{6}\))

We know that from the standard trigonometric table the value of sin(45°) is \(\frac{1}{\sqrt{2} }\)

Substitute this value in above equation we get,

\(\frac{1}{\sqrt{2} }\) =  y / ( \(\sqrt{6}\))

We solve this equation to find the value of y.

y =  \(\sqrt{6}\) ×  \(\frac{1}{\sqrt{2} }\)

y = \(\frac{\sqrt{3}\sqrt{2} }{\sqrt{2} }\)

y = \(\sqrt{3}\)

Therefore, the correct answer is an option (c)

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The given limit can be expressed as the definite integral: lim (n→∞) n ∑(i=1 to n) i⁶/n⁷ = ∫[1/n, 1] x⁶ dx

To express the given limit as a definite integral, we need to determine the appropriate function f(x) and the integration limits b and 1.

Let's start by rewriting the given limit:

lim (n→∞) (1/n) ∑(i=1 to n) \(i^6/n^7\)

Notice that the term i⁶/n⁷ can be written as (i/n)⁶/n.

Therefore, we can rewrite the above limit as:

lim (n→∞) (1/n) ∑(i=1 to n) (i/n)⁶/n

This can be further rearranged as:

lim (n→∞) (1/n^7) ∑(i=1 to n) (i/n)⁶

Now, let's define the function f(x) = x⁶, and rewrite the limit using the integral notation:

lim (n→∞) (1/n^7) ∑(i=1 to n) (i/n)⁶ = ∫[a,b] f(x) dx

To determine the integration limits a and b, we need to consider the range of values that x can take. In this case, x = i/n, and as i varies from 1 to n, x varies from 1/n to 1. Therefore, we have a = 1/n and b = 1.

Hence, the given limit can be expressed as the definite integral:

lim (n→∞) n ∑(i=1 to n) i⁶/n⁷ = ∫[1/n, 1] x⁶ dx

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Answer:

hi there i think it is B

Step-by-step explanation:

Answer:

(6, 5)

Step-by-step explanation:

when you reflect over the x axis, you multiply the y coordinate by -1

if this doesn't help, try using a graph!

Answer:

\(\huge\boxed{5,6}\)

Step-by-step explanation:

The fraction 26/5 can be simplified to 5 and 1/5, which is between the numbers 5 and 6.

Hope it helps :) and let me know if you want me to elaborate.

Answer:

23°

Step-by-step explanation:

The sum of 243°, 94° and b will create a circle which has 360°.

Therefore:-

243°+94°+b = 360°

337°+b = 360°

Subtract both sides:-

337°-337°+b = 360°-337°

b = 23°

Therefore, b = 23°

Answer:

y-intercept = -6

Step-by-step explanation:

y-intercept is the value of "y" where a line meets the Y coordinate.

The equation of the line

The linear function given to us is a straight line of equation:

\(\boxed{\mathsf{3x-4y=24}}\)

We have two methods to determine the y intercept of the given line

(Intercept form)

The intercept form will benefit us with not only the y-intercept but also the x-intercept.

If a line makes an x-intercept "a" and a y-intercept "b", it's equation in intercept form is given by:

\(\boxed{\mathsf{\frac{x}{a} +\frac{y}{b} =1}}\)    . . . . . . . .. . . (¡)

Our main motive here is to get a 1 on one side and have separate denominators for x and y.

PROCESSING OUR CONVERSION:

\(=>\mathsf{3x-4y=24}\)

taking 24 to the denominator on the LHS:

\(\implies\mathsf{\frac{3x}{24} -\frac{4y}{24} =1}\)

reducing the fractions to their simplest form:

\(\implies\mathsf{\frac{x}{8} -\frac{y}{6}=1}\)

getting a plus in between the two fractions and taking the leftover minus to 6 of " \(\frac{y}{6}\)"

\(\implies\mathsf{\frac{x}{8} +\frac{y}{-6}=1}\)

On comparing it with eqn. (¡), we get

a = 8 and b = -6

which are the x and y intercepts respectively

Since, the question's only asked for the y-intercept

ANSWER:

y-intercept = - 6

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

(slope-intercept form)

The given equation is in standard form. To convert it into slope-intercept you simply have to isolate y.

CONVERSION:

\(\implies \mathsf{3x-4y=24}\)

taking y to the RHS and getting 24 to the LHS

[NOTE: Signs change in doing so]

\(\implies \mathsf{3x-24=4y}\)

dividing both the sides by 4

\(\implies \mathsf{\frac{3x}{4} -6=y}\)

This is the equation in slop-intercept form!

When a line meets the Y-axis it's x coordinate becomes 0.

[Check the attachment]

Substituting x with 0

\(\implies \mathsf{0-6=y}\)

\(\implies \mathsf{-6=y}\)

ANSWER:

x is 0 when y is -6.

Implies that the y intercept of the line is -6

The value of the Population Variance is 100.

According to the statement

we have given that the A population of N = 10 scores has μ = 50 and σ = 5. And we have to find the population variance.

So, For this purpose,

we know that the population variance can be defined as the average of the distances from each data point in a particular population to the mean squared, and it indicates how data points are spread out in the population.

Population variance = mean /(standard deviation/number of samples)

Population variance = μ / (σ /N )

Substitute the values in it and then

Population variance = 50 / (5 /10 )

Population variance = 50 / (0.5 )

Population variance = 100.

So, The value of the Population Variance is 100.

Disclaimer: This question was incomplete. Please find the full content below.

Question:

A population of N = 10 scores has μ = 50 and σ = 5. What is the population variance?

a. 10

b. the square root of 5

c. the square root of 50

d. 25

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Answer:

easy

Step-by-step explanation:

substitute in x random numbers ro get the y

create a table

draw the point that would go in the negative infinite part of the graph until 0 dont draw anything on the right side of the yaxis

Given:

Consider the equation

\(2+\dfrac{2x}{5}=-10\)

To find:

The steps and solution for the given equation.

Solution:

We have,

\(2+\dfrac{2x}{5}=-10\)

Step 1: Using subtraction property of equality, subtract 2 from both sides.

\(2+\dfrac{2x}{5}-2=-10-2\)

\(\dfrac{2x}{5}=-12\)

Step 2: Using multiplication property of equality, multiply both sides by 5.

\(\dfrac{2x}{5}\times 5=-12\times 5\)

\(2x=-60\)

Step 3: Using division property of equality, divide both sides by 2.

\(\dfrac{2x}{2}=\dfrac{-60}{2}\)

\(x=-30\)

Therefore, the solution of the given equation is \(x=-30\).

Answer:

Rectangle. length x width = area

10x4=40

triangle. base x height / 2 = area

3x4=12/2=6

40+6= a total of 46 square meters

Step-by-step explanation: