Two expressions are shown below:

5(4a+7u)
20a+35u
Are these expressions equivalent? Explain why or why not.

Answers

Answer 1

Answer:  

yes

Step-by-step explanation:

yes because 5 times 4 a

is 20 a and 5 times 7u is 35

Answer 2

Answer:

Yes

Step-by-step explanation:

If you were to give the variables a number value such as a=2 u=3

5(4*2+7*3)=145

20*2+35*3=145

They are equivalent


Related Questions

Raj has a 25m by 15m rectangular lawn. He mows a strip of uniform width and leaves
a patch of lawn that is 60% of the original area.
What is the width of the strip? (to one decimal place)

FULL WORK PLEASE

Answers

Here is the answer and explaining how i did it

I need some help!! I will try to give brainliest!!!

Answers

Answer:

x = 35

y = 95

Step-by-step explanation:

(For y) The measure of a line is 180 degress. 180 - 95 - 50 = 35.

(For x) The measure of a triangle is 180 degress. 180 - 50 - 35 = 95.

Answer:

x = 85, y = 45

Step-by-step explanation:

solving for x:

180 - 95 = 85

solving for y:

85 + 50 = 135

180 - 135 = 45

Good luck on your schoolwork

Which expressions are equivalent to - f - 502f - 3)?

Answers

Answer:

?

Step-by-step explanation:

What grade is this for?

a car travels 156 miles in 3 hours and 15 minutes. how many miles does it travel per hour

Answers

Answer:

48 mph

Step-by-step explanation:

Convert 3 hours 15 minutes to hours.

15 minutes = 15/60 hour = 1/4

So 3 hours 15 mins = 3 1/4 hours = 13/4 hours

156 miles in 13/4 hours ==> speed = 156 ÷ 13/4 = 156 x 4/13 = 48

i don’t need any work for it i just need the answer

Answers

The Answer would be 864mm^2

1. For a one-tailed test (lower tail) at 93.7% confidence, Z =

2. For a one-tailed test (upper tail), a sample size of 24 at 90% confidence, t =

3. In a one-tailed hypothesis test (lower tail=left tailed test) and where the population standard deviation is known, the test statistic is determined to be -2.5. What is the p-value for this test?

Answers

Answer:

1) Z = -1.8592

2) t = 1.7139

3) p = 0.0062

Step-by-step explanation:

1) Area: (93.7+100)/2 = 193.7/2 = 96.85

Z = invNorm(0.9685,0,1) = 1.8592, but since the test is one-tailed at the lower tail, Z is actually -1.8592

2) Area: (90+100)/2 = 190/2= 95 where df=n-1=24-1=23

t = invT(0.95,23) = 1.7139

3) Since the population standard deviation is known, our test statistic is z=-2.5, making the p-value for the test p=normalcdf(-1e99,-2.5,0,1) = 0.0062

NEED ANSWER ASAP!! TYYY SO MUCH IN ADVANCE

Answers

Answer:

24.84

Step-by-step explanation:

use Pythagoras theorem

h=√p²+b² = √(19)²+(16)² = √617 =24.84

Help me out with this please!

Please don't send me links to any suspicious websites other than Brainly.

Answers

1.) f^-1(x) = x/3 -2

2.)f^-1(x) = 5x/6 + 5/2

I hope this helps you have a nice day!

! + 3 − 5 = 0; by completing the square

Answers

Answer:

x = 1.19258 and x = −4.19258

Step-by-step explanation:

The given equation is :

[tex]x^2+3x-5=0[/tex]

Keep x terms on the left and move  the constant to the right side  by adding it on both sides.

[tex]x^2+3x=5[/tex]

Take half of the x term and square it.

[tex](3\times \dfrac{1}{2})^2=\dfrac{9}{4}[/tex]

then add the result to both sides

[tex]x^2+3x+\dfrac{9}{4}=5+\dfrac{9}{4}\\\\(x+\dfrac{3}{2})^2=\dfrac{29}{4}\\\\(x+\dfrac{3}{2})=\sqrt{\dfrac{29}{4}}\\\\x=\dfrac{-3}{2}+\sqrt{\dfrac{29}{4}}\\\\x=\dfrac{-3}{2}-\sqrt{\dfrac{29}{4}}[/tex]

So,

x = 1.19258 and x = −4.19258

Hence, this is the required solution.

hey akaspratt since I didn’t give you brainliest would you like To answer This question what’s The absolute value of -14

Answers

Answer:

14

Step-by-step explanation:

Absoloute value means the distance from 0, so the distance of -14 from 0 is 14

Answer:

absolute value:14

Help me out please I’ll give all five stars

Answers

I think it is 10 miles.

I hope this helps! :)

Ben deposited $6,500 in a simple interest account that pays 2.8% interest annually. If Ben leaves the money in the account for 12 years, how much interest will he earn?

Answers

Answer: $2184

Step-by-step explanation:

(6800)(0.028)(12) = 2184

Use the diagram to name the following

Answers

1. Circle P
2. PB
3. DE
4. AB

Answer:

1. P

2. BP

3. DE

4. AB

Step-by-step explanation:

Solve
5.27*0.01(2.1)

Answers

Answer:

the answer is 0.11067

Step-by-step explanation:

Find the midpoint of the line segment with end coordinates of:
(-3, -1) and (4, -5)
Give coordinates as decimals where appropriate.​

Answers

Answer: (0.5, -3)

Explanation:

The midpoint formula is (x1+x2) divided by 2, (y1+y2) divided by 2.

It should look like this: (-3+4/2, -1+-5/2)

What is the length of the radius of a circle whose circumference is 125.6 feet? Use 3.14 for Pi.

Answers

Answer:

Hello! answer: 20

Step-by-step explanation:

circumference is just diameter × pi so If we do circumference ÷ pi we will get our diameter so

125.6 ÷ 3.14 = 40 But remember diameter is just twice the radius so all we have to do is divide by 2 to get our radius so

40 ÷ 2 = 20 So 20 is the radius Hope this helps!

Answer:

the answer is 20 feet

Step-by-step explanation:

divide the circumference by 3.14 gives you the diameter then divide the diameter by 2 to get the radius.

All seniors voted for this year's prom theme. The bar graph below shows the distribution of responses of which theme each student selected. Is there a problem with the way the data are displayed in the bar graph?

Answers

Answer:

yes there is a problem

Step-by-step explanation:

The ranking should start from 0 n u can see its started from5

Answer:

(A) Yes, the vertical axis should begin at 0, not at 5.

Step-by-step explanation:

I just took the AP Stat Unit test on Edg2022 and got 100%.

When the vertical axis does not start at 0, it makes the graph look misleading.

Don't forget to press that THANKS button!

Part A: explain why x coordinates of the points where the graphs of the equations y=4^x and y=2^(x-1) intersect are the solutions of the equation 4^x=2^(x-1). Part B: Make tables to find the solution to 4^x=2^(x-1). Take the integer values of x between -4 and 4. Part C: How can you solve the equation 4^x=2^(x-1) graphically?

Answers

9514 1404 393

Explanation:

A. The given equation will have a solution when the value of x makes the left-side expression equal to the right-side expression.

The value of the left-side expression for a given value of x is the y-value of y=4^x. The value of the right-side expression for a given value of x is the y-value of y=2^(x-1). The left-side expression will be equal to the right-side expression for a given value of x when the graph of y=4^x and the graph of y=2^(x-1) have the same y-value. That is, the graphs will be of the same point for that x-value. That is what we mean when we say the curves will intersect at that point.

The x-coordinate of the point of intersection is the value that makes the expressions equal, hence it is the solution to the equation.

__

B. The tables are included in the first attachment. We have used f(x) to represent the left-side expression, and g(x) to represent the right-side expression.

__

C. As described in Part A, the graphs will cross at the solution point. Hence the equation can be solved graphically by graphing the left-side expression and the right-side expression and seeing where the graphs cross. (That is at the point (-1, 0.25) on the attached graph.)

Alternate graphical method

The solution can also be found graphically by graphing the difference of the expressions: y = 4^x -2^(x-1). This difference will be zero at the value of x that makes the two expressions equal. That is, the x-intercept of the graph of this difference will be the solution value. The second attachment shows this sort of graphical solution. (It works nicely because many graphing calculators will display the value of the x-intercept.)

On Marlene's trip to Starved Rock, her average rate of speed for the entire five-hour trip was 62 miles per hour. For the first two hour of her trip, she kept her average speed at 50 miles per hour. Then she realized she was going to be late to meet her friend for dinner, so she started driving faster. What was her average speed for the last three hours of the trip?

Answers

Answer:

70

Step-by-step explanation:

brainliest plz

30/75 reduced to lowest terms

Answers

Answer:

30/75 = 2/5

Explanation:

[tex]\frac{30}{75}[/tex] divide each number by 5.

[tex]\frac{6}{15}[/tex] divide each number by 3

[tex]\frac{2}{5}[/tex]

Therefore, the reduced form is

[tex]\frac{2}{5}[/tex]

Nancy rides her horse with a constant speed of 12 miles per hour. How long will she take to travel a distance of 6 miles?

Answers

Answer:

it will take her 30 minutes long

Answer

30 minutes

Step-by-step explanation:

6 is half of 12 and Nancy is moving 12 mph. half of an hour is 30 minutes so the answer would be 30 minutes.

HELP WILL GIFT 30 EXTRA POINTS IF SOLVE ANSWER ALL QUESTIONS PLEASE!!!

Answers

Answer:

Question 1: The amount of students that Yolanda kept track of doesn't add up to her sample space.

Question 2: The sample space is 237. I know this because it said in the question she was asking all of the students at their Middle School which happened to be 237. A sample space is the group that you are taking information from. They are taking information from 237 students.

Proper angle for a ladder is about 75° from the ground. Suppose you have a 10 foot ladder. How far from the house should you place the base of the latter? Round to the nearest hundredth

Answers

Answer:

The base of the ladder is 2.58 m.

Step-by-step explanation:

Given that,

The angle of elevation for a ladder from the ground is 75°.

The length of a ladder, H = 10 foot

We need to find the distance from the house should you place the base of the latter. Let the base of the ladder is b. Using trigonometry,

[tex]\cos\theta=\dfrac{B}{H}\\\\B=H\times \cos\theta\\\\B=10\times \cos(75)\\\\B=2.58\ m[/tex]

So, the base of the ladder is 2.58 m.

The sum of 8 and Jose's savings is 50.

Answers

Answer:

8 + x = 50, so Jose's saving or x = 42

Hope this helps!

Answer:

The equation is: s + 8 = 50

The amount of Jose's savings is: 42

Step-by-step explanation:

Let s = Jose's savings.

s + 8 = 50

Subtract 8 from both sides.

s = 42

The equation is: s + 8 = 50

The amount of Jose's savings is: 42

Six less than the product of a number n and 1/5 is no more than 99

Answers

Answer:

(n * ⅕) - 6 ≤ 99

Step-by-step explanation:

Translating the word problem into an algebraic expression, we have;

(n * ⅕) - 6 ≤ 99

Opening the bracket, we have;

n/5 - 6 ≤ 99

Rearranging the equation, we have;

n/5 ≤ 99 + 6

n/5 ≤ 105

Multiplying both sides by 5, we have;

5 * n/5 ≤ 105 * 5

n ≤ 525

The plane region is revolved completely about the x-axis. Find its surface area in EXACT form (in terms of pi and/or with simplified radicals as necessary). ​

Answers

Answer: The Given plane region is missing attached below is the plane region

answer : 24 π  or 75.40 sq. units

Step-by-step explanation:

Given data :

Height of plane region = 3

base of plane region  = 4

When we revolved the plane region completely we will we forming a cone hence we will calculate for the surface area of a cone

Radius of the new cone = 3

Height of the cone = 4

slant height of the cone ( l )  = [tex]\sqrt{4^2 +3^2}[/tex]  = 5

surface area of cone = πr^2 + πrl

                                   = π ( 3 )^2  + π (3 ) ( 5 )

                                   = 24 π  or 75.40 sq. units

If a 5-foot tall man casts a shadow of 12 feet when standing on level ground, then the distance from the top of his head to the tip of his shadow is​

Answers

Answer:

13 feet

Step-by-step explanation:

you can use the Pythagorean Theorem to solve this problem because the man standing on the ground forms a 90 degree angle

5² + 12² = c²

25 + 144 = c²

169 = c²

c = √169 which is 13

Can anyone give me some advices for my sis cause she is going to high school soon and I'm worried- even tho she is older then me, she is Autism and ofc I'm worried-​

Answers

Don't worry I'm sure there'll be great people that would love to be friends with her!, you can also try to call everyday after she finishes her classes^^

Step-by-step explanation:

Advice;

Talk to her, let her know of the things she could be facing, yes we can give her as much advice as needed but it won't stop her from facing other rude teenagers.If she has a temper you guys should come up w coping mechanisms to use during school when she'll be alone. It's good practice to growing up.Ask for a tour around the school, it'll help her be more aware of her surroundings when she starts to attend.If she's nervous about entering a whole different nd new place it's fine, assure her it's going to be okay it'll just be a little adjustment.

Advice for you; ( I know it wasn't asked of )

Calm down. Don't stress, I mean I know you're gonna, she's your sister but worrying about her is just gonna be a whole other problem you don't need. She's fine, she'll be fine, you don't want her to see you worry nd make her feel the same way, right?

Alright, hope this was helpful! Need a little more insight? Feel free to ask.

I need the coordinates like ASAP

Answers

(3,8) is the correct answer!

me pueden ayudar profabor ​

Answers

Answer:

que que

Step-by-step explanation:

que

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