The y-intercept of the line whose equation is x - y = 7 is....


Thanks for any help!

Answer:

I think AB would be 67

BC would be 20 because its the whole line s 10+10 is 20

I am really sorry I don't know 1 and 4 I hope this helps tho

Also you dont have to give me brainliest

Step-by-step explanation:

Answer:

D<Q≤2 Or D<Q Q+D≤2

Step-by-step explanation:

I'm pretty sure this is the answer but it's been a while since I've done system of inequalities. Essentially the value and number of dimes is less than the value and number of quarters. And the value of both is less than or equal to 2 dollars

Answer:

The opposite sides of the rectangle are parallel.

Step-by-step explanation:

If that is true for all parallelograms and a rectangle is a parallelogram, then it should be true for a rectangle too, I think.

Answer:

The opposite sides of the rectangle are parallel. (for both questions)

Step-by-step explanation:

Got it right on edg

Answer:

[tex]y = -2x + 10[/tex]

Step-by-step explanation:

Slope: [tex]m = \frac{y_{2}-y_{1} }{x_{2}-x_{1}}[/tex]

Slope-Intercept Form: [tex]y=mx+b[/tex]

[tex]m=\frac{8-0}{1-5}[/tex]

[tex]m = -2[/tex]

[tex]y = -2x + b[/tex]

[tex]0 = -2 (5)+b[/tex]

[tex]0=(-10)+b[/tex]

[tex]b = 10[/tex]

[tex]y = -2x + 10[/tex]

Answer:

-4 x

Step-by-step explanation:

To solve this question we have to distribute 6 and 10. This is now our equation....

6x-10x

Now, we solve...

6x - 10x = -4 x...

Hope this Helps!!! :)

Let me know in the comments if I should change anything or if the answer was perfect!!!

Answer:

I don't know how to answer question 1, but the answer from question 2 is x=5

Step-by-step explanation:

The triangle shown is an isosceles triangle because it has two congruent sides. The base angles of isosceles triangles are congruent so ∠y=∠x. since the ∠x is 52 the ∠y is also 52. We subtract the measure of angles x and y in order to find the measure of the third angle. 180-(52+52) or 180-104 is 76. this means that 14x=6=76. All we have to do to get the answer now is solve. 76-6 is 70 and 70 divided by 14 is 5. x=5.

Answer:

We can say we start with 490 grams and after 1 year we have (490 * .81 grams) or 396.9 grams.

We can solve for half-life by this equation:

Half life = (time * log 2) / log (beginning amount / ending amount)

Half-life = (1 year * 0.30102999566) / log (490 / 396.9)

Half life = (1 year * 0.30102999566) / log (1.2345679012 )

Half life = (0.30102999566) / 0.091514981109

Half-Life = 3.2894067399  years

Well, that's a start.

Step-by-step explanation:

The half life of the given radioactive isotope will be 3.2894067399  years.

The amount of time it takes to disintegrate by half an initial amount. For a given reaction, a reactant's half-life t-1/2 is the time it takes for its concentration to reach a value which is the arithmetic mean of its initial and final value.

Here, Element X starts with 490 grams

After 1 year we have  (490 X 0.81 grams) or 396.9 grams

Now, We can solve for half-life by this equation:

Half life = (time  X log 2) / log (beginning amount / ending amount)

Half-life = (1 year X 0.30102999566) / log (490 / 396.9)

Half life = (1 year X 0.30102999566) / log (1.2345679012 )

Half life = (0.30102999566) / 0.091514981109

Half-Life = 3.2894067399  years

Thus, the half life of the given radioactive isotope will be 3.2894067399  years.

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Answer:

Carter;

5 ( x + 9 ) - 3x = 2x + 45

Step-by-step explanation:

Simplify the equation;

5 ( x + 9 ) - 3x

Distribute the 5, remember, you have to distribute 5 over both terms.

5x + 45 - 3x

Combine like terms;

2x + 45

Answer:

do you have a pic that we can see to help you?

Step-by-step explanation:

the person above me is right, it is a! good luck on your test <3

Answer:

I think the answer is 42.

Step-by-step explanation:

If there is a 50% increase in members then the number of members would go up 14. Adding 14 to 28, you come away with 42.

Sorry if it's wrong.

Answer:

15 years

Step-by-step explanation:

$40 x 15 (years) = 600

600 - 600 = 0

Answer: First Option (5√5)

Answer:

First, you see if there are any perfect squares that are a factor of 125. If you do find some, find what is seemingly the biggest. In this case, it is 25, I think. So you can then out it as root(25×5), I think. As 25 is a perfect square, you can square and then put the number you get on the outside. So since 5×5=25, it becomes 5(root)5, which essentially means 5×(root)5, I think.

Answer:

11 is one of the factors! The orange divisor(s) above are the prime factors of the number 990. If we put all of it together we have the factors 2 x 3 x 3 x 5 x 11 = 990.

Step-by-step explanation:

Answer:

2x2x3x5=11

Step-by-step explanation:

Answer:

You would have to multiple everything inside of the parenthesis by the number that's outside in this case it would be 2 ×7 and 2 × -9

Answer: 14n ,-18

Answer:

One of the most basic concepts in statistics is hypothesis testing. Not just in Data Science, Hypothesis testing is important in every field. Want to know how??? Let us take an example. You must have heard about lifebuoy?? Suppose

lifebuoy claims that, it kills 99.9% of germs. So how can they say so? There has to be a testing technique to prove this claim right?? So hypothesis testing uses to prove a claim or any assumptions.

Hopefully, this helps! :D

Answer:

The constant of proportionality is the ratio between two directly proportional quantities. Two quantities are directly proportional when they increase and decrease at the same rate.

(G o o g l e)

Step-by-step explanation:

I hope this helps!

Answer:

y= 9x+2

Step-by-step explanation:

y-intercept b=2, slope m=9

equation in slope intercept form is

y=mx+b and for here is y= 9x+2

Answer:

5x/7 - 3/7

Step-by-step explanation:

Based on the calculations, the value of x for this regular polygon with the given interior angle is equal to 3.

A polygon can be defined as a two-dimensional geometric shape that comprises straight line segments and a finite number of sides. Also, some examples of a polygon include the following:

Note: The number of sides (n) of a hexagon is 6.

In Geometry, the sum of the interior angles of both a regular and irregular polygon is given by this formula:

Sum of interior angles = 180 × (n - 2)

Sum of interior angles = 180 × (6 - 2)

Sum of interior angles = 180 × 4

Sum of interior angles = 720°.

Next, we would determine the value of x by using this formula:

Interior angle × Number of sides = Sum of interior angles

Substituting the parameters into the formula, we have;

(-134x + 516 + 2x) × 6  = 720

-134x + 516 + 2x = 720/6

-134x + 516 + 2x = 120

516 - 120 = 134x - 2x

396 = 132x

x = 396/132

x = 3.

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Answer:

[tex]6y^3z(8x^4yz^3-3)[/tex]

Step-by-step explanation:

Factor-[tex](-18y^3)(z)+48x^4y^4z^448x^4y^4z^4-18y^3z=6y^3z(8x^4yz^3-3)[/tex]

Answer:

6A+2C=60

Step-by-step explanation:

It mean 6 of A added to 2 of C is equivalent to a total of 60

Answer:

a) 0.073044

b) 0.75033

c) The normal distribution can be used in part (b), even though the sample size does not exceed 30 because initial population size is been distributed normally , therefore, the mean of the samples will be normally distributed regardless of their size(meaning whether the sample size is less than or equal to or exceeds 30, the sample means the mean of the samples will be normally distributed regardless of their size).

Step-by-step explanation:

The overhead reach distances of adult females are normally distributed with a mean of 205.5 and a standard deviation of 8.6 .

a. Find the probability that an individual distance is greater than 218.00 cm.

We solve using z score formula

z = (x-μ)/σ, where

x is the raw score = 218

μ is the population mean = 205.5

σ is the population standard deviation = 8.6

For x > 218

z = 218 - 205.5/8.6

z = 1.45349

Probability value from Z-Table:

P(x<218) = 0.92696

P(x>218) = 1 - P(x<218) = 0.073044

b. Find the probability that the mean for 15 randomly selected distances is greater than 204.00

When = random number of samples is given, we solve using this z score formula

z = (x-μ)/σ/√n

where

x is the raw score = 204

μ is the population mean = 205.5

σ is the population standard deviation = 8.6

n = 15

For x > 204

Hence

z = 204 - 205.5/8.6/√15

z = -0.67552

Probability value from Z-Table:

P(x<204) = 0.24967

P(x>204) = 1 - P(x<204) = 0.75033

c. Why can the normal distribution be used in part​ (b), even though the sample size does not exceed​ 30?

The normal distribution can be used in part (b), even though the sample size does not exceed 30 because initial population size is been distributed normally , therefore, the mean of the samples will be normally distributed regardless of their size(meaning whether the sample size is less than or equal to or exceeds 30, the sample means the mean of the samples will be normally distributed regardless of their size).

Answer:

Slope= 4

Step-by-step explanation:

When you start at (0, 0) and then go to (1, 4), then you have to use the slope.

So, to figure out the slope, you have to do rise over run, rise/run.

So, as shown in the graph, the rise is 4 because the rise is the y so to get from 0 to 4, you have to add 4.

And the run, which would be the x side is 1 because to get from 0 to 1. You add 1.

This shows us that the slope is 4/1 which could be simplified to just 4.

Answer:

c im pretty sure, good luck

y = [tex]sin^{-1}x[/tex] function is represented in the graph.

The inverse sine function (also called arcsine) is the inverse of sine function. Since sine of an angle (sine function) is equal to ratio of opposite side and hypotenuse, thus sine inverse of same ratio will give the measure of the angle.

According to the graph

Domain = [-1, 1]

Range = [-[tex]\frac{\pi }{2}[/tex], [tex]\frac{\pi }{2}[/tex]]

Restrict the domain of the sine-function y =sinx, so that it is one to one, and not infinite by setting an interval [-[tex]\frac{\pi }{2}[/tex], [tex]\frac{\pi }{2}[/tex]].

The restricted function passes the horizontal line test, therefore it is one to one .

Each range value (-1 to 1) is within the limited domain (-[tex]\frac{\pi }{2}[/tex], [tex]\frac{\pi }{2}[/tex]).

Inverse sine or arcsine is the inverse of the restricted sine function , y =sinx,  [-[tex]\frac{\pi }{2}[/tex], [tex]\frac{\pi }{2}[/tex]].

The equation is y = [tex]sin^{-1}x[/tex] or y = arc sinx

Which also means , siny = x, where -[tex]\frac{\pi }{2}[/tex] ≤ y ≤ [tex]\frac{\pi }{2}[/tex], -1 ≤ x ≤ 1.

The coordinates of the inverse sine function (-1,  -[tex]\frac{\pi }{2}[/tex]), (0, 0), (1,  [tex]\frac{\pi }{2}[/tex]).

Thus, y = [tex]sin^{-1}x[/tex] function is represented in the graph.

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Answer:

Try picking a number from y ans x axis them u divide or multiply them to find the number when u do multip that number by the above numbers.

Step-by-step explanation: