Mathematics College

HELPPPP what theorem shows ACE=BCD

Answers

Answer 1

Answer:

Theorem SAS shows ACE = BCD ☺️♥️

Answer 2

The two triangles are congruent by the side-angle-side property.

What is congruency?

The Side-Angle-Side Congruence theorem (SAS) defines two triangles to be congruent to each other if the included angle and two sides of one are congruent to the included angle and corresponding two sides of the other triangle.

Given that in the image of the triangle ABC and BCD,

The side AC is equal to the side CB.

AC = CB

The side EC is equal to the side CD.

EC = CD

The angles at point C are vertically opposite angles,

∠ACE = ∠BCD

Hence, from the side-angle-side property, the two triangles will be congruent with each other.

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Related Questions

an orchard sells 6lb of apples for $13.50 there is a proportional relationship between the cost and number of apples.

Answers

Answer:

Yes, there is a proportional relationship. For every 6 pounds of apple sold, they make $13.50.

How much is 10% of 65 gallons? Write your answer as a decimal number.

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answer: 6.5

10 x 65 = 650
650/100 = 6.5

Answer:

6.5 Gallons

Step-by-step explanation:

If 10% is 6.5 then just divide 65 by 10

.
Identify the partial quotient in the second step of the following problem:

10
100
300
1

Answers

Answer:

100

Step-by-step explanation:

I'm struggling a little bith in Math. Can someone help me to understand how to calculate MAD (mean absolute deviation)?

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Answer:It can be calculated by finding the mean of the values first and then find the difference between each value and the mean. Take the absolute value of each difference and find the mean of the difference, which is termed as MAD. Find the MAD of a data set using this mean absolute deviation calculator. MAD Calculator.

Step-by-step explanation:

Solve the following quadratic equation
2x²+7x=15

Answers

Answer:

x = - 5 ; x = 3/2

Step-by-step explanation:

Start by subtracting 15 from both sides to get to an equation in standard form: a x^2 + b x + c= 0 so we can use the quadratic formula to solve for "x".

2 x^2 + 7x - 15 = 0

Then:

[tex]x=\frac{-7+/-\sqrt{49-4(2)(-15)} }{4} \\x=\frac{-7+/-\sqrt{169} }{4}\\x=\frac{-7+/-13}{4}\\x =-5\\or\\x=3/2[/tex]

Please help sorry if it’s a little blurry! I’ll mark brainliest if you tell me why you got that answer.

Answers

Answer:

Hi! Saw your comment saying you got it, congrats! I hope you are having an amazing day/night and I wish you luck with the rest of your studies! I hope you don't mind that I use this for some points! <3

What is the formula for calculating a residual value

Answers

The formula to figure residual value follows: Residual Value = The percent of the cost you are able to recover from the sale of an item x The original cost of the item. For example, if you purchased a $1,000 item and you were able to recover 10% of its cost when you sold it the residual value is $100!!

The residual value indicates how well the regression model fits the observed data, with a residual of zero indicating a perfect fit.

In the context of linear regression analysis, the residual value represents the difference between the observed value of the dependent variable and the predicted value. The formula for calculating the residual value can be expressed as:

Residual = Observed Value - Predicted Value

To calculate the residual value, you need to have a regression model that predicts the value of the dependent variable based on the independent variable(s). Once you have the predicted value, you subtract it from the corresponding observed value to obtain the residual.

For example, if you have an observed value of 10 and the predicted value from the regression model is 8, the residual would be:

Residual = 10 - 8 = 2

The residual value indicates how well the regression model fits the observed data, with a residual of zero indicating a perfect fit.

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Each number in a list of numbers is 3 more than the number before it. The first number in the list is -4. What is the fifth number?
A 8
B. 7
C. 6
D. 5

Answers

Answer: it’s A

Step-by-step explanation: Because you add three each time, so starting from -4 you go to -1 and then 2 and then 5 and then the fourth number 8

The fifth number in the list of numbers is 8.

Option A is the correct answer.

What is an expression?

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

The first number in the list is -4.

Each number is 3 more than the number before it.

This means,

Second number = -4 + 3 = -1

Third number = -1 + 3 = 2

Fourth number = 2 + 3 = 5

Fifth number = 5 + 3 = 8

Thus,

The fifth number is 8.

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plz do this ill mark brainly and its worth 15 points plz

Answers

Answer:

Step-by-step explanation:

9. discount is 9 dollars. sale price is 36 dollars

10. discount is 135 dollars sale price is 315

11. discount is 7.20 dollars, sale price is 41.80

12. discount is 37.50. sale price is 112.50

13. discount is 590. sale price is 870

14. discount is 42. sales price is 42

15. discount is 32.50. sales price is 292.50

16. discount is 29.75. sales price is 56.25

17. The similarities is that there's a difference in the original price, usually in a percentage. The difference is that a markup is a increase whereas a discount is a decrease

Answer:

just look up the questions on the internet

for exaple look up 20% of 45 is what for discount then do 45-discount=sales price

Step-by-step explanation:

A stick is 8 m long. A rope is 14 times as long as the stick.

If the rope is divided into 2 pieces, how many meters long is each piece of rope?

Answers

Answer:

Step-by-step explanation:

8 times 14=112 divided by 2 = 56

Evaluate 4a if a =2 so what is the answer

Answers

Answer:

The answer is 8.

Step-by-step explanation:

hope that helps

4(2)

What is the percent of increase from 900,000 to 1,000,000?
Round your answer to the nearest tenth of a percent and include a percent sign (%),

Answers

Answer:

1000000/900000= 10/9= 1.1111111111*100=11.11%

What value represents the vertical translation from the graph of the parent function f(x)=x^2 to the graph of the
function g(x)=(x+5)^2+3?
o -5
o -3
o 3
o 5

Answers

Answer:

A) -5

Step-by-step explanation:

(x+5) defines the movement in the x direction

Remember! When something is in parenthesis, signs have to change.

At a little-known vacation spot, taxi fares are a bargain. A 16-mile taxi ride takes 24 minutes and costs $9.60. You want to find the cost of a 42-minute taxi ride. What unit price do you need?

Answers

Answer:

$32.90

Step-by-step explanation:

You would need $32.90 to get travel by the taxi.

-6 (x + 3) =6
distributive property btw

Answers

The answer to -6(x+3)=6 is x= -4

Tell whether the blue figure is a translation, reflection, rotation, or dilation of the red figure,
o translation
reflection
rotation
dilation

Answers

can you provide a picture of the two figures .?

Yeah we need a pic for this dude

Ram has 35 gel pens.. please help this is for kahn academy

Answers

Answer:

After the 35 gel pens??

Step-by-step explanation:

Write an equation that represents the line.

Answers

Answer: y = 3/4x-5

Step-by-step explanation: Go up 3 and to the right 4; and it crosses the y-axis at -5.

what is 73.85 dived by 5
plz I need help

Answers

Answer:

14.77

Step-by-step explanation:

Are you not able to use a calc? I can sketch out the long division if you need it!

Although the first quarter of 2002 was quite dismal on Wall Street, mutual funds investing in gold companies rose an average of 35.2%. Assume that the distribution of returns in the first quarter of 2002 for mutual funds specializing in gold companies is fairly symmetrical with a mean of 35.2% and a standard deviation of 20%. If random samples of 16 gold stock funds were selected:

Answers

Complete Question

90% of the sample mean returns are between what two values symmetrically distributed around the mean?

Answer:

The two values symmetrically distributed around the mean are

21.87\% and 43.17\%

Step-by-step explanation:

From the question we are told that

The sample size is [tex]n = 16[/tex]

The sample mean is [tex]\= x = 0.352[/tex]

The standard deviation is [tex]\sigma = 0.20[/tex]

Generally the degree of freedom is mathematically represented as

[tex]df = n -1[/tex]

=> [tex]df = 16 -1[/tex]

=> [tex]df = 15[/tex]

From the question we are told the confidence level is 90% , hence the level of significance is

[tex]\alpha = (100 - 95 ) \%[/tex]

=> [tex]\alpha = 0.10[/tex]

Generally from the t distribution table the critical value of [tex]\frac{\alpha }{2}[/tex] at a degree of freedom of [tex]df = 15[/tex] is

[tex]t_{\frac{\alpha }{2} , 15 } = 2.13 [/tex]

Generally the margin of error is mathematically represented as

[tex]E = Z_{\frac{\alpha }{2} } * \frac{\sigma }{\sqrt{n} }[/tex]

=> [tex]E = 2.13 * \frac{ 0.20 }{\sqrt{16} }[/tex]

=> [tex]E = 0.1065 [/tex]

Generally 90% confidence interval is mathematically represented as

[tex]0.3252 -0.1065 < \mu < 0.3252 + 0.1065 [/tex]

=> [tex]0.2187 < \mu < 0.4317 [/tex]

converting to percentage

[tex]0.2187 * 100 < \mu < 0.4317 * 100 [/tex]

=> [tex] 21.87\% < \mu < 43.17\% [/tex]

Hence the 90% of the sample mean returns are between 21.87\% and 43.17\%

In 7 hours of driving, Vince travelled 364 kilometers. If he travels at the same rate, what distance will he travel in 12 hours? kilometers

Answers

Answer:

52 times 12 = 624

Step-by-step explanation:

364 divided 7 = 52

52 times 12 = 624

A computer company, Repair-IT, told Alex it would cost $240 to fix his computer. The materials needed make up 40% of the total cost. The labor makes up 60% of the total cost.

Answers

Answer:

materials gets 96 and labor gets 144

Step-by-step explanation:

y = -6x
y = -8x + 6
?????

Answers

Answer:

x=3

Step-by-step explanation:

-6x=-8x+6

+8 +8

2x=6

2/2 6/2

x=3

what is the value of x?

Answers

Answer:

I believe the answer would be fifteen

15 is the answer In this question

Which point would map onto itself after a reflection across the line y = –x?

(–4, –4)
(–4, 0)
(0, –4)
(4, –4)

Answers

Answer:

its D

Step-by-step explanation:

Answer:

D. (4,-4)

Step-by-step explanation:

because y (the second one) equals x but just with a minus

The Sheikra roller coaster at Busch Gardens in Tampa, Florida, features a 138-foot vertical drop.
What is the slope of the coaster track at this part of the ride?

Answers

If the drop is vertical, the slope is undefined. It approaches negative infinity. For a finite slope to be defined, you must have both a vertical rise or drop, and a horizontal run.

how much of a 3/4 of cup serving is in a 2/3 cup of yogurt?

Answers

Answer:

8/9

Step-by-step explanation:

could i have brailiest plz it isnt a must tho thx

The table below shows the probability distribution for the number of times some students in my MATH 211 class said that they forgot to do
their homework. Let X represent the random variable "number of times forgot to do hwk" (Note: number of times forgot to do hwk are
independent from each other) and P(X) the associated probability,
X х
PIX)
0.45
0
1
0.32
2
0.04
3
What is the probability that the "number of times forgot to do hwk" is at least 1.7(Round answer to 2 decimal places)
O a. 0.45
O b.0.32
O c.0.55
O d. 0.73
McGraw
AP
8:11 PM
11/9/2020

Answers

Answer:

8::::::::::::::::::D *

](6^3 - 9)/23]4

Evaluate this expression

Answers

The value of the expression is [(6^3 - 9)/23]4 = 36

How to evaluate the expression?

The expression is given as:

[(6^3 - 9)/23]4

Evaluate the exponent

[(6^3 - 9)/23]4 = [(216- 9)/23]4

Evaluate the quotient and the difference

[(6^3 - 9)/23]4 = [9]4

Evaluate the product

[(6^3 - 9)/23]4 = 36

Hence, the value of the expression is [(6^3 - 9)/23]4 = 36

Answers

Answer:

Step-by-step explanation:

36 + 25 = 61

Answer:

Step-by-step explanation:

Parentheses first

2 2

(6) -5

36 + 25

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