5. Evaluate the following expression for r = 5.
3r + (2-4)

Answers

Answer 1

Answer:

If r= 5 in 3r+(2-4)

it will beome

3(5)+(2-4)

=  15+(-2)

=  15-2

=  13


Related Questions

Use segment addition postulate
If k is the midpoint of JL, JK=8x+11 and KL = 14x-1, find JL

Answers

8x+11 =14x-1
x=2
plug 2 into the equations to find the lengths then add them
16+11=27=JK
28-1=27=KL
27+27=54
54=JL

Which equation should you use to solve for x?
40°
60°
16x
O 60 + 16x + 40 = 180
O 60 + 40 = 16x
0 60 + 16x = 40
O 60 + 16x + 40 = 90

Answers

Answer:

1st Option

Step-by-step explanation:

All angles in a triangle must add up to 180°.

Step 1: Set up equation

40° + 60° + 16x = 180°

Step 2: Rewrite

60° + 16x + 40° = 180°

Answer:

Option: A.

Step-by-step explanation:

Hey there!

In the given triangle;

60° +16x° + 40° = 180° { Sum of interior angle of a triangle}

100° + 16x= 180°

16x = 180° - 100°

[tex]x = \frac{80}{16} [/tex]

Therefore, X= 5°.

So, Option A (equation) is used for solving the value of"X".

Hope it helps...

The elevator that takes passengers from the lobby of the John Hancock Centre in
Chicago to the observation level travels 300 feet in 5 seconds. The observation level
is located on the 100th floor, at 1200 feet above the ground. Find the time it takes
the elevator to travel from the lobby to the observation level. (4)

Answers

Answer:

20 seconds

Step-by-step explanation:

s = Distance traveled by elevator = 300 ft

t = Time taken = 5 seconds

Velocity is given by

[tex]v=\dfrac{s}{t}\\\Rightarrow v=\dfrac{300}{5}\\\Rightarrow v=60\ \text{ft/s}[/tex]

Distance to the observation level from the lobby = 1200 ft

Time taken is given by

[tex]t=\dfrac{1200}{60}\\\Rightarrow t=20\ \text{s}[/tex]

Time taken to reach the observation level from the lobby is 20 s.

2 5. 8 11 X 2 -4 8 у 14 What is the equation of the given table?​

Answers

Answer:

8-6+-2

Step-by-step explanation:

what is 300 × = 120,000
there is nothing between the × and = cuz its asking me 300× what = 120,000.

Answers

The answer is 400

First, you must flip the equation.

[tex]120000[/tex] ÷ [tex]300[/tex] = ?

Then, you must simplify the equation.

[tex]1200[/tex] ÷ [tex]3[/tex] = ?

Finally, divide the two terms.

[tex]1200[/tex] ÷ [tex]3[/tex] = 400

true or faulse
-7(x^2-5x+3) is the same as -7x^2-35x-21

Answers

Answer:

sup

Step-by-step explanation:

jk it's true

Answer:

False

Step-by-step explanation:

-7(x^2-5x+3) is the same as -7x^2+35x-21 the original question had the wrong sign for the 35x, a negative times a negative is a positive.

what is the difference of −1,098 and -895.9

Answers

Answer:

witha decimal? to

Step-by-step explanation:

Account
Does this equation have a single solution, Inhnite solutions, or no solution?
Dashboard
2x + 2x + 2 = 4x + 2
Courses
teolition
Calendar
Inhnite solutions
ne solution
Inbox
Next
Hele
No new data to save Last checked at 5: Sopm
Submit Quie

Answers

Answer: Not sure why you copied the text of the website as well, but it has infinite solutions. You get 4x + 2 = 4x + 2, or 0 = 0.

Step-by-step explanation:

Find the x-intercept of the graph of y = -10x - 36


The x-intercept is_____

Answers

The answer is 10 I think maybe

Compare v5 and 2.9.
Help :c

Answers

Answer:

√5 < 2.9

Step-by-step explanation:

√5 is 2.236...

which is less than 2.9

In eight minutes, Josh was able to type 496 words. What’s his typing speed in words per minute?

Answers

Answer:

62 words/minute

Step-by-step explanation:

496 words divided by 8 minutes= 62 words in one minute

This recipe makes 15 cupcakes.
Deepak only wants to make 12 cupcakes.
How much of each ingredient does he need?

Recipe: Makes 15 cupcakes
12 ounces butter
10 ounces sugar
15 ounces flour
5 eggs
I WILL GIVE BRAINLIEST TO THE BEST ANSWER IF ITS RIGHT

Answers

He will only need 3 ounces of butter, 1 ounce of sugar, 3 ounces of flour, and 5 eggs hope I helped

Determine the height of the triangle if the area is 24 square inches and the base is 12 inches.

Answers

Answer:

4

Step-by-step explanation:

We use 1/2base times height to find the area and since we already have an area we just do 24= 6h then we divide 6 on both sides and height equals 4

Answer: 6 inches

Step 1: Subtract 12 because 12 iches is the base.

24 - 12 = 2

Step 2: Divide 12 by 2 because triangles have two equal sides.

12 ÷ 2 = 6

Answer = 6

help please! absolute value equations! ​

Answers

Answer:

n = -1                       n = -7

Step-by-step explanation:

5| 2n+8| +3 = 33

Subtract 3 from each side

5| 2n+8| +3-3 = 33-3

5| 2n+8| = 30

Divide by 5

5/5| 2n+8| = 30/5

| 2n+8| = 6

An absolute value equation has two solutions, one positive and one negative

2n+8 = 6              2n+8 = -6

Subtract 8 from each side

2n+8-8=6-8          2n+8-8 = -6-8

2n = -2                    2n = -14

Divide by 2

2n/2 = -2/2            2n/2 = -14/2

n = -1                       n = -7

8p+5=-6p+1 what's the answer to this equation?​

Answers

Answer:

-2/7

Step-by-step explanation:

y = 4x +zx + 6 solve for x


plz

Answers

Answer:

y = x(4+z)+6

y-6 = x(4+z)

x=(y-6)/(4+z)

Step-by-step explanation:

if 2025 students are arranged in equal number of rows and columns find the number of students in each rows​

Answers

Answer:

45

Step-by-step explanation:

Answer:

45

Step-by-step explanation:

.....

....,..,.....

3. If Greg forgives Chad's $3 debt to him, how does that affect how much money Chad has?

Answers

He has more because he does not have to pay back the three dollars that Greg forgave
it should be -3 i might be wrong but i’m positive

Find the function that can be used to represent the bananas

Answers

Answer:

it the 3rd one or the first

Step-by-step explanation:

How is quadrilateral ABCD related to quadrilateral A'B'C'D' shown below?

Answers

what you put is correct. A’B’C’D’ is what would be shown if you rotate ABCD 90 degrees clockwise

Answer:

i think its a

Step-by-step explanation:

A cubic meter (m³) is ________. a cubic centimeter (cm³).

a.equal to
b.smaller than
c.larger than
d.diferent form

Answers

It’s B because m is smaller than cm

Answer:

It would be larger than

Step-by-step explanation: hope this helps

Jane's garden is 3.4 meters by 6.5 meters. If fencing costs $2.25 per meter, how much will it cost to put fence around her garden?

Answers

$44.25 .. The perimeter is 19.8, times the cost, which is 44.25

(13/7)^2 as a simplified proper fraction or a simplified improper fraction?

Answers

Answer:

Simplified improper fraction.

Step-by-step explanation:

A simplified proper fraction would not have a numerator bigger than the denominator.

An improper fraction would have a numerator bigger than the denominator that can be simplified.

We see here that the expression isn't proper as it can be simplified further. Therefore, it is improper.

Answer: Simplified improper fraction.

Step-by-step explanation: I got this correct on a worksheet

Class 6 are going on a trip to a windmill.
The trip costs £3.70 each and there are 26 students in 8A. How much money should be collected?

Answers

money $96.2 should be collected

A parabola has a vertex of (-2,1) and passes through the point (0,-7). What is the value of amplitude

Answers

Answer:

The value of the amplitude is -2

Step-by-step explanation:

The given parameters are;

The vertex of the parabola = (-2, 1)

The point through which the parabola passes = (0, -7)

The equation of the parabola can be expressed as follows;

y - y₀ = a·(x - x₀)²

Where;

y₀ = The y-coordinate of the vertex = 1

x₀ = The x-coordinate of the vertex = -2

Therefore, we substitute the known values of the coordinates of a point  the parabola to get;

-7 - 1 = a·(0 - (-2))²

-8 = 4·a

a = -8/4 = -2

The value of the amplitude a = -2.

please help me, i don't understand this at all :(

Answers

i don’t know how much this will help as i don’t know the specific methods used in your lesson, but what i personally do is break down the number as much as i can.

32 can be simplified to 2^5. this is the fourth root, so you take out four of the 2’s to the outside by the 6. therefore it becomes 6(2) which = 12 along with the other 2 and an x left inside the fourth root “house”. btw i would write it out but brainly doesn’t let me attach pictures for some reason, and i don’t have the symbols on my keyboard. ):

we now simplify 512 in the second term. 512 is the same thing as 32 times 16, which is 2^9. we take out four of the 2’s, leaving us with 2^5. we can take four more 2’s out, leaving us with a 2 and an x in the inside of the fourth root “house”. on the outside we have 2 2’s, leaving us with a product of 4.

third term. 16 can be simplified to 4^2, or 2^4. we can take all four of them out since it’s the fourth root. there are also four x’s, so we take them out, leaving us with 2x. there isn’t anything left in the “house”.

now, we go from left to right. to better illustrate it, i will use “{ }” as the fourth root.

12 {2x} - 4 {2x} + 2x

8 {2x} + 2x . that’s as simplified as it can get. hopefully this helps! ):

expand 2t(6t-3) please

Answers

I think the answer is 12t^2-6t

If ΔABC is reflected across the y-axis, what are the resulting coordinates for points A', B', and C'
sketch the reflection on the cordinate plan

Answers

Answer:

Step-by-step explanation:

Reflection across the y axis changes the x value.

Reflection across the x axis changes the y value.

This is counterintuitive, but it is correct.

A'

(-1,6)

B'

(-2,1)

C'

(-5,2)

Do you see what happened. All the values for x become - values because you are moving an equal distance in the -x direction

If 2a + 3 < 10, then which of these could be a value of a?

a. 6 b. 4 c. 2 d. 10

Answers

Answer:

it's going to be d.

Answer: c

Step-by-step explanation:

2*6=12

12+3=15

15 is not less than 10

2*4=8

8+3=11

11 is not less than 10

2*2=4

4+3=7

7 is less than 10

10*2=20

20+3=23

23 is not less than 10

Write the equation in vertex form using the following information: vertex (4, -6) and a=1.
Submit

Answers

Answer:

            y = (x - 4)² - 6

Step-by-step explanation:

An equation of a quadratic function in a vertex form is y=a(x-h)²+k, where vertex is (h, k)

vertex (4, -6) means  h = 4  and k = - 6

So:

     y = 1(x - 4)² + (-6)

    y = (x - 4)² - 6

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