I need help with these questions

(check pictures)

Answer:

3

Step-by-step explanation:

3

The answer is 3 because it is the opposite of negative 3

Answer:

It would drop the grade down to about a B- or C+

Step-by-step explanation:

Answer:

D,

Step-by-step explanation:

D would be the only one that doesn't represent a function because the y-value never changes while the x-value does.

Answer:

(3,4)

Step-by-step explanation:

Find equations of both lines

Line 1: y = 1/3x + 3

Line 2: y = 2x - 2

Set then equal to each other, then solve for x:

1/3x + 3 = 2x - 2

1/3x + 5 = 2x

x + 15 = 6x

15 = 5x

x = 3

Then sub x into one of the equations (doesn't matter which one) and solve for y

y = 2x - 2

y = 2(3) - 2

y = 6 - 2

y = 4

Solution is (3,4)

OR EVEN BETTER!! JUST LOOK AT THE GRAPH AND SEE WHERE THE TOUCH AND LOOK AT THE NUMBERS!! YAY, YOU DID IT!!

Answer:

(3,4)

just put 3,4 is the equation

Answer: 0.5 to 35

Step-by-step explanation:

Answer:

B: 30°, 78°, 72

Step-by-step explanation:

Given a [tex]\triangle ABC[/tex].

Let [tex]\angle A = x^\circ[/tex]

As per question statement, [tex]\angle B[/tex] is 18° more than twice of [tex]\angle A[/tex].

i.e

[tex]\angle B =(2x+18)^\circ[/tex]

[tex]\angle C[/tex] is 42° more than that of [tex]\angle A[/tex]

[tex]\angle C = (x+42)^\circ[/tex]

To find:

The angle measures of the triangle = ?

Solution:

We can use the angle sum property of a triangle here to find the three angles of the triangle.

As per angle sum property, the sum of all the three internal angles is equal to [tex]180^\circ[/tex].

[tex]\angle A + \angle B + \angle C= 180^\circ\\\Rightarrow x+2x+18+x+42=180^\circ\\\Rightarrow 4x+60=180\\\Rightarrow 4x=120\\\Rightarrow x= 30^\circ[/tex]

i.e. [tex]\angle A = 30^\circ[/tex]

[tex]\angle B = 2\times 30 + 18 = 78^\circ[/tex]

[tex]\angle C = 30+42 = 72^\circ[/tex]

Therefore, the correct answer is:

B: 30°, 78°, 72

the answer C

the vertical distance after when D=2

is T

Answer:

I am positive the answer is A

Step-by-step explanation:

Since it needs 12.50 per hour and h is per hour it would be 12.50h + S which is what A says

Answer:

8

Step-by-step explanation:

You want to isolate x so that you can solve for it based on the value you have.

This gives you 26x=208. 208/26 equals 8

Answer:

D) 8

Step-by-step explanation:

edge2020

Answer:

18 questions

Step-by-step explanation:

In order to get the answer you have to multiply 3/4 by 24.

(3/4)(24) = 18

Therefore, Tomas got 18 questions correct.

I hope this helps!!

- Kay :)

Answer:

The slope of the line segment CD = 9

Hence, option 'D' is true.

Step-by-step explanation:

Given that the slope of line segment = 9

Given that the line segments AB and CD are both parts of the same non-vertical line. It means their slopes must be the same.

Thus, the slope of the line segment CD = 9

Hence, option 'D' is true.

Answer:

he got 210 dollars in interest

Step-by-step explanation:

Answer:

Step-by-step explanation:

24 X c,

24 ÷ c,

24 + c,

24 - c,

24c

Answer:111.919 square inches

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Answer:

x has a value of 14.

Step-by-step explanation:

In addition to the information provided in the question, we are also told that the rectangle has a length x+1 and a width x-4.  This is all we need to know.

To work this out, we simply need to plug those numbers into the equation for the perimeter of a rectangle.  That would be p = 2l + 2w, where p is perimeter, l is length, and w is width.

We know that the resulting area (p) is equal to 54 units.  We are also given variable values for the length and width.  With that we can simply plug them into that equation and solve it for x:

[tex]p = 2l + 2w[/tex]

[tex]54 = 2(x + 1) + 2(x - 4)[/tex]

[tex]54 = 2x + 2 + 2x - 4[/tex]

[tex]54 = 4x - 2[/tex]

[tex]56 = 4x[/tex]

[tex]x = 56 / 4[/tex]

[tex]x = 14[/tex]

Answer:

r = -189

Step-by-step explanation:

Let's make it easy,

-13=r/9+8

r/9 = -13-8

r/9 = -21

r = -21 × 9

r = -189

Answer:

[tex]angle \: 3 \: and \: angle \: 7[/tex]

Step-by-step explanation:

[tex]pls \: mark \: as \: brainliest[/tex]

[tex]hope \: helps[/tex]

Answer:

answer is A

Step-by-step explanation:

Answer:

11.7 ft (11.661903789691 )

Step-by-step explanation:

Draw a right triangle. Legs are 10 ft and 6 ft, we're trying to find the hypotenuse.

We can use the Pythagorean theorem.

a^2 + b^2 = c^2

c = √a2 + √b2

  =  √(10)2 + √(6)2

  = √100 + √36

  = √136

  = 11.661903789691  

Answer:

The answer is c

Step-by-step explanation:im doing math exam and got it right simple ;)

Answer:

It is the first one

Step-by-step explanation:

Answer:

The answer is below

Step-by-step explanation:

a) To complete the table of values for y = 3x - 1, we substitute the value of x into the equation and find y.

For x = -2, y = 3(-2) - 1 = -7; For x = -1, y = 3(-1) - 1 = -4

For x = 0, y = 3(0) - 1 = -1;    For x = 1, y = 3(1) - 1 = 2

For x = 2, y = 3(2) - 1 = 5;    For x = 3, y = 3(3) - 1 = 8

x:    -2      -1        0        1         2       3

y:    -7      -4       -1        2         5      8

b) The graph is drawn using geogebra online graphing calculator.

c) From the graph, When x = 2.5, y = 6.5

Answer:

13. Slope: -3

14. D ; y = 18

15. ?

Step-by-step explanation:

13. 4 - 1 = 3

-3 - 6 = -9

3/-9 = -3

The time it will take for 2000 mL to drain is 107 minutes.

The time it took to drain 131 mL is 7 minutes.

We have to find the time it took to drain 2000 mL.

131 millilitres drained in 7 minutes.

This means for every 7 minutes, 131 millilitres of liquid drains out.

Therefore, the time it will take for 2000 millimetres of liquid to drain can be calculated as follows:

131 mL = 7 minutes

2000 mL = ?

cross multiply

time for 2000 mL to drain = 2000 × 7 / 131

time for 2000 mL to drain = 14000 / 131

time for 2000 mL to drain = 106.870229008

time for 2000 mL to drain = 107 minutes

We have to round to the nearest minutes.

Therefore, the time it will take for 2000 mL to drain is 107 minutes.

learn more on time in minutes here:  https://brainly.com/question/15586257

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According to the given statement:

The computed value is significantly less than the given value.

The correct option is B.

The standard deviation serves as an indicator of how much a set of values can vary or be dispersed. The values are typically close to the set's mean when the standard deviation is low, while the values are dispersed over a wider range when the standard deviation is high.

The  computed value, 14.5

The  standard deviation, 11.1

finding the difference :

Percentage = (14.5 - 11.1)/11.1 * 100 = 30.6%

the value  is greater than 20%. ,

so,

In comparison to the given value, the computed value is significantly lower.

To know more about standard​ deviation visit:

https://brainly.com/question/14747159

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I understand that the question you are looking for is:

Consider a difference of 20% between two values of a standard deviation to be significant. How does the computed value, 14.5, compare with the given standard deviation, 11.1?

A) The computed value is significantly greater than the given value

B) The computed value is significantly less than the given value

C) The computed value is not significantly different from the given value

The fewest number of points that must be plotted to have examples of all four sets of numbers is including at least one positive and one negative​ integer is 2 points

The  Numbers are generally classified into 2 main groups - Rational numbers and Irrational numbers.

All the four examples listed here are types of rational numbers only.

Now, positive integers are also called  as whole numbers and natural numbers. So, one point is enough to represent whole numbers and natural numbers.

Also, another point will be required to show integers because integers can be positive and negative and  could include fractions.

Hence, The  fewest number of points we  must plot to have examples of all four sets of numbers given are 2 points.

As we know that positive integers are types of rational numbers and  positive integers are also natural numbers and whole numbers. Therefore all the options given, are positive integers.

The correct question is What is the fewest number of points you must plot in order to have examples of all four sets of​ numbers, including at least one positive and one negative​ integer? Explain.

To which sets do positive integers​ belong?

1. Integers

2.Rational Numbers

3.Natural Numbers

4. Whole numbers

Select all that apply.

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Answer: 30

Step-by-step explanation: PEMDAS

Answer:

30

Step-by-step explanation:

pemdas:

10 / (3+2) * 4 + 5^2 + 6 - 9

= (10 / 5)*4 + (25) - 3

= 8 + 22

= 30

Answer:

4c^2 - 3a^2 -7ac +6bc -ab

Step-by-step explanation:

solve first 3a( a + b + c) - 2b ( a+ b +c)

which is = 3a^2 + 3ab + 3ac - 2ab - 2b^2 -2bc

there for 4c(-a + b +c) -( 3a^2 + 3ab + 3ac - 2ab - 2b^2 - 2bc)

= -4ac-3ac +4bc+2bc -3ab+2ab + 4c^2 -3a^2

=4c^2 - 3a^2 -7ac +6bc -ab

Answer:

its c

Step-by-step explanation: