Please Help!!! I don’t understand this!!

Please Help!!! I Dont Understand This!!

Answers

Answer 1

Answer:

4. t ≥0

5. x>0

6. k ≤ 3

7. r ≥ 2

8. v ≥ 7

Step-by-step explanation:

I hope this helps


Related Questions

Write an equation in point-slope form of the line that passes through the given points, then write the equation in slope-intercept form.
(-3,5), (3,3)
What is the point-slope form of the equation of the line?
(Simplify your answer. Use integers or fractions for any numbers in the equation.)
What is the slope-intercept form of the equation of the line?
(Simplify your answer. Use integers or fractions for any numbers in the equation.)

Answers

Answer:

Step-by-step explanation:

Point-slope form:

The standard point-slope form equation is

[tex]y-y_1=m(x-x_1)[/tex]

where [tex](x_1,y_1)[/tex] are the coordinates and [tex]m[/tex] is the slope/gradient

so for point-slope form we need to find m cause we already have 2 coordinates (-3,5) , (3,3) we can use any one of them in our equation but first we need to find the slope by the formula

[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

we use our coordinates to find it and simply plug in the values

[tex]m=\frac{3-5}{3-(-3)} \\m=\frac{-2}{6} \\\\m=\frac{-1}{3}[/tex]

so we get our slope m = -1/3

and simply put m and any one of the coordinates into the standard form

[tex]y-y_1=m(x-x_1)\\y-3=\frac{-1}{3} (x-3)\\3(y-3)=-1(x-3)\\3y-9=-x+3\\3y=-x+12\\y=\frac{-x+12}{3} \\y=\frac{-x}{3} +4[/tex]

Slope-intercept form:

The standard slope-intercept form is

[tex]y=mx+c[/tex]

where m is the slope and c is the y-intercept, we already know the slope is -1/3 from the previous steps but we don't know the y-intercept so lets get started.

y-intercept means the equation intersects the y-axis which means the coordinate should be [tex](0,y)[/tex] so we plug in the slope -1/3 and the coordinate given above (-3,5) , (3,3) in the equation to find the y-intercept that is c. We can you use any one of the two coordinates.

[tex]y=mx+c\\3=\frac{-1}{3}(3)+c \\\\3=\frac{-3}{3} +c\\\\3=-1+c\\c=4[/tex]

so now we found the value of c=4 which is the y-intercept (0,4) and finally our slope-intercept form would be

[tex]y=\frac{-x}{3} +4[/tex]

as both form are same but the approach is different this verifies that both our answers are correct.

The slope of the line is -1/3. The equation in the slope-intercept form is y = (-1/3) x + 4.

What is a linear equation?

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

It is given that,

The line passes through points (-3,5), and (3,3).

The slope of the line is,

m = (y₂-y₁) / (x₂-x₁)

m = (3-5) / (3-(-3)

m = -2 / 6

m = -1 / 3

The standard equation for the line is,

y - y₁ = m (x - x₁)

y - 5 = -1 / 3 (x - (-3)

3(y - 5) = -1(x+3)

3y - 15 = -x -3

x + 3y = -3 +15

x + 3y = 12

3y = -x +12

y = (-1/3) x + 4

Thus, the slope of the line is -1/3. The equation in the slope-intercept form is y = (-1/3) x + 4.

Learn more about the linear equation here:

brainly.com/question/11897796

#SPJ2

Which situation can be represented by the equation. 1500 - 50x = 2000 - 100x

Answers

Answer:

x= 10

Step-by-step explanation:

hope i help youuuuu :)

Which one?
A. B. C. or D? ​

Answers

The answer is C I’m guessing

Answer:

C

Step-by-step explanation:

hope this helps

BRAILIEST? PWEASE

find the distance between the pairs of points. enter your answer in the box. (-3,-6) and (-3,1)

Answers

The distance between the points is 7


Hope this helps!

whats the answer? I pick brainiest if right

Answers

Answer:

the first one

Step-by-step explanation:

Letter a is correct

What is the slope of the equation y = (5/4)x + (7/4)

Answers

Answer:

Step-by-step explanation:

4y=5x+7

A random sample of 25 U.S. residents was selected using census data from the year 2000. The dotplot below shows the distribution of total personal income (in thousands) for the members of the sample. The mean of this distribution is $25,615 and the standard deviation is $25,333.What percent of the sample had total personal incomes within two standard deviations of the mean?

Answers

Answer:

95%

Step-by-step explanation:

Data falls within 2 standard deviations from the mean - is calculated using;

μ – 2σ and μ + 2σ .

The mean of this distribution is $25,615 and the standard deviation is $25,333.

μ – 2σ

= $25,615 - 2($25,333)

=$-25051

μ + 2σ

= $25,615 + 2($25,333)

= 76,281

Empirical rule states that: 95% of data falls within 2 standard deviations from the mean

Hence, 95% the sample had total personal incomes within two standard deviations of the mean.

how do u make someone brainlest

Answers

Answer: There would be a crown on the top right side of their comment

help -2 x 8/3 it's multiplecation

Answers

Answer: -16/3

Step-by-step explanation:

-2 (8/3)

(-2/1)(8/3)

((-2)(8))=-16

1(3)=3

-16/3

Answer:

-2 x 8/3 = -16/3

Step-by-step explanation:

When multiplying fractions, you multiply the numerators (numbers above the fraction line) and the denominators (numbers below the fraction line) with each other. If one of the numbers is not visibly a fraction, remember that all numbers are actually fractions - you must simply write in the denominator of 1. In this case, you'd write [tex]-\frac{2}{1} * \frac{8}{3}[/tex], which would then give you the result of [tex]-\frac{16}{3}[/tex] (-2 x 8 = -16, 1 x 3 = 3).

Hope this helped!

bonus fun fact: the fraction line is called the vinculum.

Describe how to name an angle

Answers

Acute less than 90 degrees. A right angle 90 degrees. obtuse is above 90 degrees

Answer:

Look below for an explanation

Step-by-step explanation:

To name an angle, you have to lokk at the three points that create it. There is the vertex and two 'arms' or lines. In the image below, the angle can be called AOB or BOA. However, you can NEVER name an angle by saying the vertex point first. I hope this helps!

Suzy spent 6 ⅞ days working on her English paper, 3 ⅙ days doing her science project, and 1 ½ days studying for her math test. How many more days did Suzy spend on her English paper and math test combined than on her science project?

Answers

Answer:

She spent [tex]5\frac{5}{24} days[/tex] on her English paper and math test combined than on her science project

Step-by-step explanation:

Suzy spent time on English paper =[tex]6\frac{7}{8}=\frac{55}{8}[/tex]

She spent time on science project = [tex]3\frac{1}{6}=\frac{19}{6}[/tex]

She spent on Maths test =[tex]1\frac{1}{2}=\frac{3}{2}[/tex]

She spent on her English paper and math test combined =[tex]\frac{55}{8}+\frac{3}{2}=\frac{67}{8}[/tex]

Suzy spend time more on her English paper and math test combined than on her science project = [tex]\frac{67}{8}-\frac{19}{6}=5\frac{5}{24}[/tex]

Hence She spent [tex]5\frac{5}{24} days[/tex] on her English paper and math test combined than on her science project

Find the slope given points (7, 3) and (5, 9)

Answers

Answer: -3

Step-by-step explanation: 3-9=-6, 5-7=-2, simplify -6/-2 to get -3

what is 6/22 as a percent

Answers

Step-by-step explanation:

[tex] \frac{6}{22} \times 100 \\ \\ \frac{3}{11} \times 100 \\ = 27.3[/tex]

Answer:

23%

Step-by-step explanation:

also just divide the numerator by the denominator

hope this help u :)

Marcus and Jeremy both evaluated the expression −52 + 3. Marcus said the answer was −22. Jeremy said the answer was 28. Who is correct? Explain the error in the other student’s work.

Answers

Answer:

Step-by-step explanation:

Both of them are wrong the answer would be -49.

Answer:

Marcus is correct. Jeremy squared -5 instead of 5. The negative is not within parentheses, so it is not squared.

Step-by-step explanation:

Rewrite 2/5 : 1/20 as a unit rate.

A. 40:1

B. 5:40

C. 8:1

D. 40:5​

Answers

Answer:

Your answer would be D

Step-by-step explanation:

first make 2/5 and 1/20 into ?/100

figure out how many times 5 goes into 100 than multiply 2 by that answer.

40/100=40:?

then do the same to 1/20

5/100= ?:5

So 40:5

1/2 divided by 3/2
answer now

Answers

Answer:

Step-by-step explanation:

1/2 ÷ 3/2

Copy dot flip

1/2 * 2/3

Rewriting

1/3 * 2/2

1/3 * 1

1/3

Answer:

0.33333333333

Step-by-step explanation:

In a two-digit number, the units digit is 5 more that the tenth digit. The number itself is three times the sum of its digits. What is this number?

Answers

Answer:

27

Step-by-step

The width of a rectangle is six inches less than its length. If the perimeter of this rectangle is 20 inches, find the width.

Answers

Answer:

W=16

Step-by-step explanation:

The lifespans of zebras in a particular zoo are normally distributed. The average zebra lives 20.520.520, point, 5 years; the standard deviation is 3.93.93, point, 9 years. Use the empirical rule (68-95-99.7\%)(68−95−99.7%)left parenthesis, 68, minus, 95, minus, 99, point, 7, percent, right parenthesis to estimate the probability of a zebra living between 16.616.616, point, 6 and 24.424.424, point, 4 years.

Answers

Answer:

0.67894

Step-by-step explanation:

Given that :

Lifespan of zebra is normally distributed :

Mean(μ) = 20.5

Standard deviation (σ) = 3.93

Probability of Zebra living between 16. 6 to 24.4 years

Using the empirical rule :

Z = (x - μ) / σ

For : P(Z < x ) ; X = 16.6

Z = (16.6 - 20.5) / 3.93

Z = - 0.9923

P(Z < - 0.9923) = 0.16053

For : P(Z < X) ; X = 24.4

Z = (24.4 - 20.5) / 3.93

Z = 0.9923

P(Z < 0.9923) = 0.83947

Hence,

0.83947 - 0.16053 = 0.67894

Answer:

68%

Step-by-step explanation:

Kathy owned several real estate properties. She had to pay federal taxes on her income and property taxes on the properties. What would be another major cost of her investment?

Answers

Answer:

The answer is C.

Step-by-step explanation:

I just took the test and i got it right.

do you think i should do airsoft i always wanted to

Answers

Answer:

Sounds like a good idea

Step-by-step explanation:

(mark this branliest if you do)

Answer:

YES

Step-by-step explanation:

Its so fun

Given m||n, find the value of x.
+
(3x-2)
(2x+30)

Answers

The answer would be x=32

Which is the graph of g(x)?

Answers

The graph of g(x) is 7

4√10 • 3√ 15
A. 60√6 or
B. 5√6
Which one? ​

Answers

Answer:

A. 60√6

Step-by-step explanation:

√10 * √ 15 = √ 150

√ 150 = 5√ 6

4 * 3 = 12

12 * 5 = 60

The answer is 60√ 6

20 POINTS!!!! Geometry Will Mark Brainliest.

Answers

Answer:

3 is 68 degrees

Step-by-step explanation:

So 7 is 22

2 is equal to seven so that is 22 too

it's a 90 degree angle

so 90-22=68

so that is how i got 3 is 68 degrees

Answer:

m < 3 = 68°

Step-by-step explanation:

Given m<7 = 22°, apply the Alternate Interior Angles Theorem to solve for m<5 which is also 22°.

You can use the Vertical Angles Postulate to find the m<2 which is also 22°.

Given that m || n and y is perpendicular to m, making y also perpendicular to n.

Since x and y are parallel, x is also perpendicular to n.

This means m<2 + m<3 = 90°

22° + m<3 = 90°

m<3 = 68°

I need some help real quick. thank you
[tex] \frac{3}{4} |5 + x| = 6[/tex]
[tex]10 - |x| = 15[/tex]

Answers

Here is the answer to your question

What is the exponential expression for the numerical expression.
5.5.5.5?

204

54

45

0 4.54

Answers

Answer:

The answer would be 54

Step-by-step explanation:

A science test, which is worth 100 points, consists of 24 questions. Each question is worth either 3 points or 5 points. If x is the number of 3-point questions and y is the number of 5-point questions, the system shown represents this situation.

x + y = 24

3x + 5y = 100

What does the solution of this system indicate about the questions on the test?

The test contains 4 three-point questions and 20 five-point questions.
The test contains 10 three-point questions and 14 five-point questions.
The test contains 14 three-point questions and 10 five-point questions.
The test contains 20 three-point questions and 8 five-point questions.

Answers

To solve this, we have to subtract these two equation to make Xs or Ys of two equations same. So if we multiply the first equation and 3 to make the same with other equation,

3x+3y=72

3x+5y=100

If we subtract two equations,

3x+3y=72

- 3x+5y=100

-2y=-28

y=14

So if we put this on the fir equation,

x+14=24

x=10

So the answer is the second one

x²+x-90=0 using completing the square method

Answers

Answer:

x = - 10, x = 9

Step-by-step explanation:

Given

x² + x - 90 = 0 ( add 90 to both sides )

x² + x = 90

To complete the square

add ( half the coefficient of the x- term )² to both sides

x² + 2([tex]\frac{1}{2}[/tex] )x + [tex]\frac{1}{4}[/tex] = 90 + [tex]\frac{1}{4}[/tex]

(x + [tex]\frac{1}{2}[/tex] )² = [tex]\frac{361}{4}[/tex] ( take the square root of both sides )

x + [tex]\frac{1}{2}[/tex] = ± [tex]\sqrt{\frac{361}{4} }[/tex] = ± [tex]\frac{19}{2}[/tex] ( subtract [tex]\frac{1}{2}[/tex] from both sides )

x = - [tex]\frac{1}{2}[/tex] ± [tex]\frac{19}{2}[/tex] , thus

x = - [tex]\frac{1}{2}[/tex] - [tex]\frac{19}{2}[/tex] = [tex]\frac{-20}{2}[/tex] = - 10

x = - [tex]\frac{1}{2}[/tex] + [tex]\frac{19}{2}[/tex] = [tex]\frac{18}{2}[/tex] = 9

During a baseball game, a baseball player got 4 hits out of 12 times at bat. What is the "hit" per "at bat" ratio for this player?

Answers

Answer:

4:12

Step-by-step explanation:

he hit the bat 4 : out of 12 times

4:12

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