Answers
Answer:
x = 40
Step-by-step explanation:
∠D = ∠ADB + ∠BDC
= 30 + 40
= 70°
In ΔBDC,
BD = CD
∠DBC = ∠DCB {angles opposite to equal sides are equal}
∠DBC + ∠DCB + ∠BDC = 180 {Angle sum property}
2∠DCB + 40 = 180
2∠DCB = 180 -40
2∠DCB = 140
∠DCB= 140/2
∠DCB = 70°
In ΔADC,
x + ∠D + ∠C = 180
x + 70 + 70 = 180
x + 140 = 180
x = 180 - 140
x = 40°
Related Questions
HELP I NEED HELP ASAP
Answers
Answer:
C. strong negative
Step-by-step explanation:
The reason why is because, the student's grade is falling dramatically while they watch TV. So therefore, we can erase A and D. B maybe however, it isn't "weak" but it is a heavy decrease. Therefore, your answer would be C.
i also need help with this one can y’all put the step by step explanation please?
Answers
Answer:
66
Step-by-step explanation:
4x+4y=-12
2x+4y=6
I am studying math and I i don’t know how to answer this question
Answers
Answer:
X = -y -3
X= -2y + 3 (if correct, please mark brainliest. :))
Step-by-step explanation:
Which inequality is represented by the graph?
y>−32x−2
y≥−32x−2
y≤−32x−2
y<−32x−2
Answers
Answer:
Correct answer: y>-32x-2
The required equation of inequality is y > - 3/2 x + 2.
We have given a graph of inequality for finding their equation.
What is inequality?
Inequality is a statement of an order relationship for greater than, greater than or equal to, less than, or less than or equal to, between two numbers or algebraic expressions.
From graph we can see that the line is passing through the points (0,-2) and (-4,4).
Since we know that the slope of a graph,
[tex]m = (y_2 - y_1)/(x_2 - x_1 )[/tex]
=[tex](4 - (-2))/(-4 - 0)[/tex]
⇒[tex]m = (-3)/( 2)[/tex]
Also we know the equation of line passing through the point (x_(1,) y_1) having slope be,
[tex]y - y_1 = m (x - x_1)[/tex]
Therefore, the equation of line passing through (0, -2) and having slope -3/2 be,
⇒ y - (-2) = - 3/2 x
⇒ y = - 3/2 x + 2
Since the graph is shaded left side to the line so, this equation can be written as
y > - 3/2 x + 2
Thus, this is the required equation of inequality.
Learn more about the Inequality visit:
https://brainly.in/question/2421541
#SPJ2
Ms. Myers' class sold magazine subscriptions as a fundraiser for a field trip.
Tatiana sold 56 subscriptions and Bryson sold 48. The entire class sold 12
times the sum of the subscriptions Tatiana and Bryson sold.
Which of the following expressions can be used to find the number of
subscriptions sold by the entire class?
Answers
Answer:
12(56+48)
Step-by-step explanation:
find the lenght of side a will give crown
Answers
Answer:
D) 4
Step-by-step explanation:
Pythagorean theorem,
base² + altitude² = hypotenuse²
3² + altitude² = 5²
9 + altitude² = 25
altitude² = 25 - 9
altitude² = 16
altitude = √16 = 4
does 5 ÷ 1/4 equal 1/20 true or false?
Answers
Answer:
Step-by-step explanation:
No false because 5 ÷ 1/4 = 1.25 and 1/20 = 0.05
Answer:
False
Step-by-step explanation:
simplify answer, round to nearest 10th in radical form
Answers
Answer:
adassdasdsa c c c c cc c c c c c c c cc c c c
Step-by-step explanation:
value? Hint: Rationalize the denominator and
4/4 - sqr6x
Answers
Answer:
The Answer is A
Step-by-step explanation:
I'm 100% right.
Can you help me with these two? Sorry-
Answers
Answer:
Yes
and B are the answer
Have a good day
Find the greatest common factor of 7 and 21.
Answers
Answer: 7
Step-by-step explanation:
Factors of 7 are, 1, and 7. The factors of 21 are, 1, 3, 7, and 21, making 7 the gcf.
......... HELP PLEASE
Answers
Answer:
0.4 I'm sorry if it wrong
please help this is due tomorrow
Answers
Answer :
880 (hope this helps)
Step-by-step explanation:
l.w.h.
the length is 10
i geuss the wit is 11
and the hieght is 8
multiple in order.
help pleaseee?? explain
Answers
Answer:
sorry I didn't know what to do in this
really really sorry of which class you are .?
4. The school's soccer team is made up of 3 grades. Grade 10s make up 17% of the team
and grade 12s make up 55% of the team. What percent of the team is grade 11
students?
Answers
Answer:
28%
Step-by-step explanation:
Grade 10 = 17%
Grade 11 = ?%
Grade 12 = 55%
17% + 55% = 72%
100% - 72% = 28%
Grade 11 = 28%
18y + 16 x = 18 Y-intercept
Answers
Elizabeth has 1.32 pounds of candy. She wants to share it equally with herself and 3 friends. How much candy will each person receive?
Each person will receive pounds of candy.
Answers
Answer:
1/3 pound per person
Step-by-step explanation:
(All) (People) (Amount per person)
1.32 / 4 = .33
.33 = 1/3
What are the zeros of this function?
Answers
Answer:
4 and 6
Step-by-step explanation:
These are the points in which y=0
PLEASE HELP
Is this graph proportional or non
Group of answer choices
Proportional
non-proportional
Answers
Answer:
I dont see a picture-
Step-by-step explanation:
(-3x2 + 6x - 12) + (5x + 9) is equivalent to expression __
Answers
Answer:
[tex]-3x^{2}+11x-3[/tex]
Step-by-step explanation:
[tex](-3x^{2}+6x-12)+(5x+9) = -3x^{2} + 6x - 12 + 5x + 9 = -3x^{2} + 11x - 3[/tex]
Answer:
see below
Step-by-step explanation:
Here are the simplified results of each polynomial combination.
(5x2 + 2x + 1) + (6x2 − 3x + 9)
= 5x2 + 2x + 1 + 6x2 − 3x + 9
= 5x2 + 6x2 + 2x − 3x + 1 + 9
= 11x2 − x + 10 (B)
(-3x2 + 6x − 12) + (5x + 9)
= -3x2 + 6x − 12 + 5x + 9
= -3x2 + 6x + 5x − 12 + 9
= -3x2 + 11x − 3 (A)
(8x + 16) − (3x2 − 3x − 15)
= 8x + 16 − 3x2 + 3x + 15
= -3x2 + 8x + 3x + 16 + 15
= -3x2 + 11x + 31 (D)
(5x2 + 23x − 7) − (x2 − 4x + 21)
= 5x2 + 23x − 7 − x2 + 4x − 21
= 5x2 − x2 + 23x + 4x − 7 − 21
= 4x2 + 27x − 28 (C)
I need help with geometry
Answers
The bottom left corner of a graph is always negative. So if there’s a point, both points will be negative
Find the circumference of the circle.
Use = 3.14
12 cm
A 18.84 cm
B 37.68 cm
C 34 cm
D 113.04 cm
Answers
30 POINTS
Identify the following for the exponential function y = 5(1/4)x.
a. Growth or decay?
b. Initial value
c. Growth/decay factor
d. Growth/decay rate (as a percentage)
Answers
Answer:
A)
Decay
B)
Initial value is 5.
C)
The decay factor is 0.75.
D)
75%
Step-by-step explanation:
An exponential function is given by:
[tex]f(x)=a(r)^x[/tex]
Where a is the initial value and r is the rate.
We have the function:
[tex]y=5(1/4)^x[/tex]
So, a = 5 and r = 1/4.
A)
Remember the guidelines:
It is exponential growth if r > 1. And it is exponential decay if r < 1. (And r must be positive.)Our rate is 1/4 or 0.25.
It is less than 1, so our function is exponential decay.
B)
The initial value is the value in front of our rate.
So, our initial value in this case is 5.
C)
The decay factor will be 1 - r, where r is our rate.
Since our rate is 0.25, our decay factor is 1 - 0.25 = 0.75.
So, we are decaying by a factor of 0.75.
D)
To convert a decimal to a percent, we move the decimal dot two places to the rght and add a percent sign.
So, 0.75 will be 75.0 % or smply 75%.
It is a 75% decay.
what is y - 3y please
Answers
Answer:
=-2y
Step-by-step explanation:
y-3y
=-2y
Whats 6 2/5 added by 2 3/10. Make sure ypur answer is fully reduced.
Answers
Answer:
8 7/10 or 87/10
Step-by-step explanation:
Answer:
8 7/10
Step-by-step explanation:
can you lease help me
Answers
PLEASE HELP WILL MARK BRAINLEST !!!! WHAT IS HER MISTAKE *14 points*
Answers
Answer:
Jamie put 5 and 3 together, when she should of done multiplication instead.
Step-by-step explanation:
The correct answer is 17.
Hope it helps!
Find the range of f (x) = - 1.8x + 2 for the domain {–1, 1, 3, 4}.
Answers
Answer:
(-2) + (3-7)
(-1) * (-2)
EVALUATE THE EXPRESSION
Step-by-step explanation:
HELP ME
MAHT HELP ASAP!! MARKING BRAINLIEST!!!
Answers
Answer:
200 miles
Step-by-step explanation:
1 cm = 50 miles
4 x 1 = 4 x 50 = 200
Answer:200 miles
Step-by-step explanation:
50/1 ?/4 50*4=200
The ordered pair (22, -45) is located in which quadrant of a coordinate plane?
Answers
Answer:
where is the graph
Step-by-step explanation: