Mathematics College

I’m confused on this one I have one more

Answers

Answer 1

Answer:

because the diagonals are congruent, you're going to set them equal.

2x+13=4x-1

13=2x-1

14= 2x

x=7

it's that easy

Answer 2

They r gonna be equal to the other line A and C

Related Questions

10=2x+12
What’s the steps

Answers

Answer: i got 10

Step-by-step explanation:

what ud o is 2x+12 let me see

10=2x + 12
-2x = 12 - 10
-2x=2
Divide both sides by -2
X=-1

Please help! which ones are Standard form and which one are Vertex form?

Answers

From left to right starting on the top row it goes standered ,standered, vertex.The bottom row goes from left to right vertex, vertex standerand.

hope this helps!

The two tables below show the amount of tip, y, included on a bill charging x dollars. Restaurant B Restaurant A 10 20 30 10 25 50 75 1 2 3 EN Which compares the slopes of the lines created by the tables? 1. O The slope of the line for Restaurant B is 5 times greater than the slope of the line for Restaurant A. O The slope of the line for Restaurant B is 2 times greater than the slope of the line for Restaurant A. O The slope of the line for Restaurant B is 5 times greater than the slope of the line for Restaurant A. O The slope of the line for Restaurant B is 10 times greater than the slope of the line for Restaurant A.

Answers

Answer:

The slope of the line for Restaurant B is 2 times greater than the slope of the line for Restaurant A.

Step-by-step explanation:

A jury pool has 18 people that are married and 22 people that are not married, from which 12 jurors will be selected. Assuming that each person is equally likely to be chosen and that the jury is selected at random, find the probability that the jury consists of the following. (Give answer as a fraction or a decimal out to at least 4 places. If your answer is very small use scientific notation out to 4 decimal places for example 3.3421E-6.)

Answers

If the pool has 18 married and 22 not married, this means there are 40 people total
this means there’s a 18/40 probability that people who are married will be chosen
18/40 = 2/5
There is a 22/40 probability people who are un married will be chosen
22/40 = 11/20

Martha ran 2 miles in 15 minutes.
At this rate, how many miles
would she run in 2 hours?

Answers

4 fifteen minute periods make up one hour, so she will run 8 miles in one hour. Since it’s 2 hours, you would multiply that by 2 to get 16. So, Martha ran 16 miles

90 boxes of fruit sold 72, what percentage did I sell

Answers

(90 - 72)/90 = P/100

Let P = percentage

18/90 = P/100

90P = 100(18)

90P = 1,800

P = 1,800/90

P = 20

Now 100% - 20%

You sold 80% of the boxes of fruits.

Cameron has a mask collection. He keeps 267 of the masks on his wall, which is 89%
of his entire collection. What is the total number of masks in Cameron's collection?

Answers

Answer:

300 masks

Step-by-step explanation:

If 267 is 89% of the whole amount, we can set up the following proportion:

[tex]\frac{89}{100} =\frac{267}{x}[/tex], where x is the total amount of masks we need to find.

If we cross-multiply, we get 26700=89x. Divide both sides by 89, and we get 300. So, Cameron has a total of 300 masks in his collection.

I hope this helped.

Answer:

300 masks

Step-by-step explanation:

89% = 0.89

( / ) = divided by

267/total amount of masks = 0.89

267/0.89 = 300

300 masks in total

When the football play started,
Tony ran forward 20 yards,
then turned around and ran 5 yards back.
He stood in that spot for 3 seconds,
then walked back to where he began.

Answers

type this question into Brainly someone has asked the same question & got the answer

A ranch hand herded his cattle to some grazing land. Then he began riding back to the ranch,
which is due west, at 7 miles per hour. Simultaneously, the cows began moving away from
him, too, headed due east at 3 miles per hour. How long did it take for the herd and the
ranch hand to be 2 miles apart? (Please help me !!)

Answers

Answer:

1/5 hr or 12 min

Step-by-step explanation:

We are going to use the formula D = RT

Let t = the time for them to be 2 mi. apart

Then 7t = the distance the ranch hand traveled

and 3t = the distance the cows traveled

Since they traveled in opposite directions, the sum of their distances will give us how far they are apart.

So, 7t + 3t = 2

10t = 2

t = 2/10 = 1/5 hr. = 12 min.

Justin has $7.50 more than Eva, and Emma has $12 less than Justin. Together, they have a total of $63.00. How much money does each person have?

i only have 5 min help fast

Answers

Answer:

To make it easier, lets say Justin = J, Eva = E, and Emma = M. Then, J = E + 7.50 M = J -12 J + E + M = 63 You can substitute for M in the third equation using the second equation, and you get: J + E + J - 12 = 63 Clean it up a little bit and you get: 2J + E = 75 You know J = E + 7.50, so substitute that for J and you get: 2(E + 7.50) + E = 75 2E + 15 + E = 75 3E + 15 = 75 3E = 60 E = 20 ; meaning that Eva has $20. Justin has $7.50 more than Eva, so he has $27.50. Emma has $12 less than Justin, so Emma has $15.50. Double check your answer by making sure they all add up to 63, which they do.

Leah spins each spinner one time what is the probali

Answers

Can you please provide with more information so I can help you answer it :)

What is the equation of the line that passes through the point (-1, -5) and has a slope of -2?

Answers

Answer:

2x+y=-7

Step-by-step explanation:

y-y1=m(x-x1)

y-(-5)=-2(x-(-1))

y+5=-2(x+1)

y=-2x-2-5

y=-2x-7

-2x-y=7

2x+y=-7

is 0.8 larger than 0.83

Answers

Answer:

no, 0.83 is larger.

Step-by-step explanation:

it says I need at least 20 characters so I'm typing this:) have a good day

5 cakes shared between 3 people. what does each person recieved

Answers

Answer:

Each person recieves 1.6 of the cakes.

Step-by-step explanation:

5 divided by 3 equals to 1.6.

A playground is shaped like a rectangle whose length is 25m and breadth is 20
m. Find its area and perimeter.

Answers

Answer:

500m square

Step-by-step explanation:

first we know that to find the area of something we have to multiply so I did 25×20 and i got 500

What is the standard form equivalent of this quadratic expression in factored form? (2x-3)(3x-4)

Answers

Answer: 6x^2 -17x +12

Step-by-step explanation:

I need help please help

Answers

Answer:

137

Step-by-step explanation:

The answer is 137:)

Hope this helped

There are 8 pieces of fruit in a bowl and 6 of them are apples. What percentage of the pieces of fruit in the bowl are apples?

_______% are apples.

Answers

Answer:

80%

Step-by-step explanation:

Because the answer is 80%

Answer:40 percent

Step-by-step explanation:Total number of fruit in a bowl is 15 pieces.

Number of apples are 6 pieces in a bowl.

6/15 times 100 equals 40%

Scientists conducting a study on global climate change want to determine if there has been an increase in the number of days per year that the temperature in El Paso rises above 100 degrees. In 1981, there were 21 days (5.75%) where the temperature was in the triple digits. The scientists want to know whether this percentage has increased. Which pairs of hypotheses is the most appropriate for addressing this question?

Answers

Answer:

The percentage maybe went up because of air pollution, and global warming

Step-by-step explanation:

What is the radius of the cone in the diagram? Round your answer to the nearest whole number.

Answers

Answer:

r = 4 units

Step-by-step explanation:

Volume of cone = 201.06 cubic units

Height (h) = 12 units

Radius (r) = ?

Thus, formula for volume of cone = ⅓*πr²h

Plug in the values and solve for r

⅓*π*r²*12 = 201.06

r²*4*π = 201.06

r²*12.57 = 201.06

Divide both sides by 12.57

r² = 201.06/12.57

r² = 15.9952267

r = √15.9952267

r ≈ 4 units

Answer:

Sample answer

like and Rate!!!

If a cookie recipe calls for ¾ cup of sugar and you have 9 ½ cups of sugar, how many whole batches of cookies can you make?

Answers

Answer:

Step-by-step explanation:

i just did t

Answer:

Step-by-step explanation

Question 4
12 marks
4.1 a. In each case find the unit cost and then state which is the better buy.
4 marks
6kg of potatoes for $2.45 or
15 kg of potatoes for $5.9 or
10 kg of potatoes for $3.92?

Answers

Answer:

The better buy is to buy 10 kilograms of potatoes at $ 3.92, since each kilogram costs $ 0.392.

Step-by-step explanation:

To find the cost per unit in each case and then state which is the better buy, the following calculations must be performed:

6kg of potatoes for $ 2.45:

2.45 / 6 = 0.408

15 kg of potatoes for $ 5.9:

5.90 / 15 = 0.393

10 kg of potatoes for $ 3.92:

3.92 / 10 = 0.392

Thus, the better buy is to buy 10 kilograms of potatoes at $ 3.92, since each kilogram costs $ 0.392.

After completing this activity, what is your initial explanation of how the populations of predators and prey are related? plz help

Answers

Answer:

prey and predators depends in each other .in the absence of one another is useless or meaning less. predators is responsible for population of prey.if less predators more prey and more predators means less prey.

Answer:

A predator-prey relationship tends to keep the populations of both species in balance. ... As the prey population increases, there is more food for predators. So, after a slight lag, the predator population increases as well. As the number of predators increases, more prey are captured.

Step-by-step explanation:

PLZ HELP I WILL GIVE BRAINLIEST FOR THE 1ST PERSON TO ANSWER!!

Answers

The awnser is the 3rd one its simple.

Sean took 6 tests and currently has an average of a 90. His range of his scores was 18 and the mode of the test scores is 89.

Answers

Answer:

what is the question?

Step-by-step explanation:

Answer:

Below.

Step-by-step explanation:

Total scores = 6*90 = 540.

He had more than one 89 ( mode) and max score - min score = 18.

Let max score = x then min = x-18.

Lets say he has 3 89's then

x + x - 18 + 3*89 + y = 540 where y is another score then:

2x + 249 + y = 540

2x + y = 291

x = 98 and y = 95 will fit this so the 6 scores could be

80, 89, 89, 89, 95, 98.

HELP PLEASE THIS IS DUE IN 5 MINUTES

Answers

Answer:

Part A:

Since Jasmine has more cousins rhan Brenda, who has 4 cousins, then the amount of cousins that Jasmine has (j) is greater than 4 so j > 4

Part B:

We have a number line and we draw an arrow starting from 4 and going to the right.

Hope this helped!

Answer:

4.8h - 2.3d - 14

Step-by-step explanation:

helppp guys i really don't get it

Answers

9514 1404 393

Answer:

(b) ... confirm ∠C≅∠E

Step-by-step explanation:

The first step is to read and understand the problem statement. It is asking for a way to prove ΔABC ~ ΔADE by AA similarity. That means you want to show any two of the three ...

∠A≅∠A∠B≅∠D∠C≅∠E

For this purpose, lengths of line segments are irrelevant (eliminating the last two answer choices). The fact that ∠A≅∠A is given, so you only need to find an answer choice that will show one of the last two angle congruences.

Obviously, showing ∠B≅∠E (choice A) is not relevant to the problem.

The only answer choice that is relevant to the question is the second one, showing ∠C≅∠E.

Alex needs 36 boxes in the carton above.

Answers

Answer:

1 stack of 36

Step-by-step explanation:

First find how much one carton can hold

length is 45

width is 20

height is 40

40 * 20 * 45 = 36,000

Then find how much volume each box has

length is 20

width is 10

height is 5

5 * 10 * 20 = 1000

so each box is 1000 volume

1 stack of 36 is good

I need help please I do not know what to do I need help

Answers

Answer:

22/29

Step-by-step explanation:

Add up all the eight grade student that participated in this survey which is 29.

Then add all the eight grade students that do not play guitar which is 22. So 22/29 is the amount of students that play an instrument other than a guitar in fraction form.

Hopefully you got the correct answer. Let me know if you got it wrong.

Please help! :( If AJKL = ARST, which congruences are true by CPCTC? Check all that apply.
A. ZL ZR
B. KL: ST
C. KZS
D. JK = RS
E. JL - RS
F. LJ2S

Answers

Step-by-step explanation:

I just got it on a pex. JK=RS. KL=ST. K=S. those are the answers

The congruences that are true by CPCTC are:

∠L = ∠R

KL ≅ ST

What is a triangle?

A triangle is a 2-D figure with three sides and three angles.

The sum of the angles is 180 degrees.

We can have an obtuse triangle, an acute triangle, or a right triangle.

We have,

If ΔJKL = ΔRST, then the corresponding parts of the triangles are congruent.

CPCTC stands for "corresponding parts of congruent triangles are congruent,"

So we can use this property to determine which congruences are true.

∠L = ∠R:

This is true by CPCTC because they are corresponding angles in congruent triangles.

JK ≅ RS:

This is not true by CPCTC because they are not corresponding sides in congruent triangles.

KL ≅ ST:

This is true by CPCTC because they are corresponding sides in congruent triangles.

JL ≅ RS:

This is not true by CPCTC because they are not corresponding sides in congruent triangles.

∠L = ∠S:

This is not necessarily true just by the fact that ΔJKL = ΔRST.

It could be true in some cases, but it is not guaranteed by CPCTC.

Therefore,

The congruences that are true by CPCTC are:

∠L = ∠R

KL ≅ ST

Learn more about triangles here:

https://brainly.com/question/25950519

#SPJ7

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