Please Help. Given trapezoid ABCD, Prove ΔBEC ~ ΔDEA
Answer:
AAA (or AA)
Step-by-step explanation:
Prove ΔBEC ~ ΔDEA
(using three angles is unnecessary because you can just use Angle Angle to prove similarity)
First, m∠BCE = m∠EAD because of alternate interior angles.
Then, m∠ADE = m∠CBE because of alternate interior angles.
m∠BEC = m∠AED because of vertical angles
Thus, ΔBEC ~ ΔDEA because of Angle Angle Angle [AAA] (or AA if you only chose to use 2 angles)
Do number 3 am giving brainliest look below
Answer:
18 cm^2
Step-by-step explanation:
I don't remember how to solve this problem I missed yesterday when we learned it. 4(x-2+y)
Answer:
4x - 8 + 4y
Step-by-step explanation:
4(x - 2 + y)
4x - 8 + 4y
You multiply each term in the parenthesis by the number in front of it.
Which is the correct equation for a line that has a slope of 2 and passes through the point (-1, -5). Use the graph below or graph paper if needed.
PLEASE HELP ASAP
A.y = 2x - 5
B.y = 2x + 5
C.y = 2x - 3
D.y = 2x + 3
9514 1404 393
Answer:
C. y = 2x - 3
Step-by-step explanation:
The y-intercept (b) can be found from ...
y = mx + b
y - mx = b . . . . . subtract mx
Here, you are given (x, y) = (-1, -5) and slope m = 2.
b = -5 -2(-1) = -5+2 = -3
The correct equation is ...
y = 2x -3 . . . . . matches choice C
_____
On the graph, you can plot point (-1, -5) left of the y-axis 1 unit and down from the x-axis 5 units. The slope of 2 tells you the line will rise 2 units from there to a y-value of -3 when it runs 1 unit to the right to an x-value of 0. That point (0, -3) is the y-intercept, showing you that choice C is correct.
Carlos has 2 dollars more than half of the total amount of money his brother has. If x represents the amount of money Carlos’s brother has, which expression can be used to represent this situation?
plz hurry
Answer:
xX2/2?
Step-by-step explanation:
Please help me my moms gonna kill me if I don’t get this done(20 points)
The polygons are similar. Find the values of
the variables. Write an equation and solve,
showing ALL the work.
Answer:
x=30° y=4
Step-by-step explanation:
[tex] \frac{y}{8} = \frac{2.5}{5} [/tex]
cross multiple
5y=8(2.5)
5y=20
divide 5 by 20
and you should y=4
since the polygons are similar x should have the same degrees as the bigger polygon
Answer: Y=4
Step-by-step explanation
Since the inside of a triangle is 180 degrees the 30 degrees plus the 90 degree corner minus the total inside degree so the other corner is 60 degrees. the dialation is 62.50 percent or .625 in decimal form which makes the vareable y equals 4 once you divide 2.5 by .625
Your welcome for the help :)
what is
a) 39.637, 44.3421, 34.1546,
44.351, 34.248 in increasing order
Answer:
34.1546, 34.248, 39.637, 44.3421, 44.351
Step-by-step explanation:
I need help pls
What is angle 3
Answer:
Step-by-step explanation:
4x + 6 + 3x + 21 = 8x + 7
7x + 27 = 8x + 7
-x + 27 = 7
-x = -20
x = 20
m<3= 8(20) + 7
160 + 7 = 167
m<1= 4(20) + 6 = 80 + 6 = 86
m<2= 3(20) + 21 = 60 + 21 = 81
Fill in the blank. Given below, you can conclude that OD is congruent to _______.
A. AB
B. circle O
C. OB
D. EF
Answer:
c
Step-by-step explanation:
The line segment OD is congruent to line segment OB. Therefore, option C is the correct answer.
What is the relation between equal chords and radius?Equal chords of a circle are equidistant from the center of the circle.
From the given figure, AC=EF=9.07.
So, AC and EF are equal chords.
Since, the chords are equal, they are equidistance from center.
Then, OD=OB
Therefore, option C is the correct answer.
To learn more about the circle theorems visit:
https://brainly.com/question/19906313.
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Please help!! 10-15 much appreciated! :)
Answer:
Step-by-step explanation: sin β = [tex]\frac{oposite }{hypotenuse}[/tex] ; cos β = [tex]\frac{Adjacent}{Hypotenuse}[/tex]
10) sin [tex]32^{0}[/tex] = [tex]\frac{x}{18}[/tex]
18 sin [tex]32^{0}[/tex] = x
18 (0.53) = x
x= 9.5 units
cos [tex]32^{0}[/tex] = [tex]\frac{y}{18}[/tex]
18 cos [tex]32^{0}[/tex] = y
y = 18 (0.85)
y = 15.3 units
You use the same strategy for the rest of the questions. Feel free to reach out if you have more questions.
A teacher interested in determining the effect of a new computer program on
learning to read conducted a study. One hundred students were randomly assigned
to one of two groups. The first group used the computer program while the second
group did not. Both groups were tested to determine how much their reading levels
improved. The results for the two groups were compared. What kind of study is this?
(2 points)
1) This is an experiment because a treatment was applied to a group.
2)
This is an experiment because students were able to choose which group to
join.
3) This is a survey because students were randomly assigned to groups.
4) This is a survey because a treatment was applied to both groups,
Answer:
an experiment because a treatment was applied to a group
Step-by-step explanation:
jayfeather friend me
Answer:
This is an experiment because a treatment was applied to a group.
Step-by-step explanation:
This is because it cannot be a survey since the children are taking a test, which has a hypothesis. Hope you get this right. I took the test and got right.
PLEASE MARK ME AS BRAINLIEST
Write the ratio as a fraction in simplest form write the whole number in the numerator and denominator 24:56
Someone help this is due today worth half my grade!!
Answer:
D-the slope of the line will be zero
Step-by-step explanation:
Which sum describes the total number of apples in this
array?
3 + 3 + 3
3 + 3 + 3 + 3
3 + 4
4 + 4 + 4 + 4
Answer:
3+3+3+3
Step-by-step explanation:
please this is important I really need help
Answer:
The answer is <DOE
<DOE + <COD = A straight LINE, a.k.a, a LINEar pair
what's a function????
Answer: Function, in mathematics, an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable). Functions are ubiquitous in mathematics and are essential for formulating physical relationships in the sciences.
Step-by-step explanation:
Answer:
A relation of two or more numbers
One input one output
there can be more then one input for the same output
just not more then one output for one input
Heather drove at a constant rate. She traveled 162 miles in 3 hours. How far did Heather travel in 1 hour?
Answer:
54 miles
Step-by-step explanation:
I think it's right I did 162÷3=54 I hope it helps :D
Which table represents a linear function?
Write a quadratic function in vertex form whose graph has the vertex ( -5. - 1) and passes through the point (-2.2).
Answer:
[tex](\frac{1}{3})(x+5)^2-1[/tex]
Step-by-step explanation:
So first let's write a graph in vertex form with a vertex of (-5, -1)
We get
a(x+5)²-1
We now need to determine a
we know that when x= -2 y=2 which means we have
a(-2+5)²-1=2
Solve for a
a(3)²=3
9a=3
a=3/9
a=1/3
Now that we know what a is equal to we can write our equation
[tex](\frac{1}{3})(x+5)^2-1[/tex]
5 2/5 divided by 9/10
Answer:
Step-by-step explanation:
5 2/5 = [(5*5)]+2 / 5 = (25+2) / 5 = 27/5
(27/5)/(9/10) = 27/5 * 10/9
cross cancel 27 becomes 3 and 9 becomes 1, 5 becomes 1 and 10 becomes 2
= 3/1 * 2/1 = 6/1 = 6
ANSWER THIS AND ILL MAKE YOU BRAINLY!!
Answer:
C. undefined
Step-by-step explanation:
Have a nice day
I urgently need help!!!!
Answer:
first one
Step-by-step explanation:
Answer:
the third option, C (6,0)
Step-by-step explanation
B is 3x, and 6y. Since C is still on the bottom of X, it doesn't have any number for y. Although, it is far to the right which gives it 6x.
Please help me- AND PLEASE EXPLAIN
Answer:
A=35, B=55, and C=25
Step-by-step explanation:
Angle A and the angle next to it are linear pairs, so you can subtract 145 from 180.
if you already know Angle A, and that the other angle is 90 degress, you can add 90+35 and subtract it from 180 to get Angle B
Angle C is paired with the angle across from it (I forgot what the term is called) so it is 25 degrees.
help please question is in picture
A store sells 5 T-shirts for $49.05. What is the unit cost per T-shirt?
2x- 7 and the opposite of 2x
Answer:
-7/4 is the correct answer,ok bro
What is the greatest common factor of the number pair 20 and 30
Answer:
10
Step-by-step explanation:
do prime factorizations of each number and multiply the common factors
20 = 2 · 2 · 5
30 = 2 · 3 · 5
common factors are 2 and 5
multiply them to get 10
In the figure, name the intersection of lines m and n.
B
m
H
K
j
DC
B
K
A
Adrian invested $790 in an account paying an interest rate of 6.9% compounded continuously. Assuming no deposits or withdrawals are made, how long would it take, to the nearest year, for the value of the account to reach $2,550?
Answer:17
Step-by-step explanation:
trust me its right, no cap
As per compound interest, it would take 17 years for the value of the account to reach $2,550
What is the compound interest?If the invested amount is 'P', the rate of interest is r%, and the time of investment is 'n' years, then the compound interest after mentioned duration is = P[1 - [tex]e^{rn}[/tex]]
Given, the invested amount (P) = $790.
Rate of interest (r) = 6.9% = 0.069.
Let, the amount is invested for 'n' years.
The value of the amount after 'n' years = $2550.
Now, as per compound interest:
A = P. [tex]e^{rn}[/tex]
⇒ 2550 = 790 [tex]e^{(0.069n)}[/tex]
⇒ [tex]e^{(0.069n)}[/tex] = (2550 ÷ 790)
⇒ [tex]e^{(0.069n)}[/tex] = 3.23
⇒ 0.069n = 1.172
⇒ n = 17
Learn more about compound interest here: https://brainly.com/question/20903348
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i need answers quick!!!
2x+2y
-6b-15
10c-25