Answers
Answer:
The value of ∠BDC is equal to 68°.
Step-by-step explanation:
It is given that,
∠BDA is a straight angle.
ATQ,
∠BDC+∠ADC=180 (Linear pair)
-7x+12+(-8x)+48 = 180
-7x+12-8x+48 = 180
-15x+ 60 = 180
-15x = 180-60
-15x = 120
x = -8
So,
∠BDC = -7x+12
= -7(-8) + 12
= 56+12
= 68°
So, the value of ∠BDC is equal to 68°.
Related Questions
Use the drawing tool(s) to form the correct answer on the provided graph.
Plot the x-intercept(s), y-intercept, vertex, and axis of symmetry for the function below.
g(x) = x^2 + 4x + 3
Answers
Answer:
Step-by-step explanation:
Graph the parabola using the direction, vertex, focus, and axis of symmetry.
Direction: Opens Up
Vertex: ( − 2 , − 1 )
Focus: ( − 2 , − 3/ 4 )
Axis of Symmetry: x = − 2
Directrix: y = − 5 /4
x-intercept is -1
y-intercept is 3
vertex is (-2, -1)
axis of symmetry is x = -2
What is Coordinate Geometry?One of the most intriguing ideas in mathematics is called coordinate geometry.
As per the given data:
We have to find out the x-intercept(s), y-intercept, vertex, and axis of symmetry for the function g(x) = x² + 4x + 3
For finding the graph of the given function, we must know its zeroes.
x² + 4x + 3 = 0
x² + 3x + x + 3 = 0
x(x+3) + 1(x+3) = 0
(x + 1)(x+3) = 0
The zeroes are -1 and -3.
The graph will be parabola in shape, as it is a quadratic equation.
From the graph:
x-intercept is -1
y-intercept is 3
vertex is (-2, -1)
axis of symmetry is x = -2
Hence, the values are as follows:
x-intercept is -1
y-intercept is 3
vertex is (-2, -1)
axis of symmetry is x = -2
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The diameter of the circular railroad crossing sign below is 16 inches. Find the area of the sign. Use 3.14 for π.
A=πr2=π×r×r i well give you 15 points
Answers
Answer:
200.96
Step-by-step explanation:
Area is
[tex]\pi {r}^{2} [/tex]
Where r is the radius, we can find the radius since the radius is half of the diameter. Since the diameter is 16, the radius is 8. Now let plug it in the equation.
[tex]\pi(8) {}^{2} [/tex]
Which equals
[tex]64\pi[/tex]
Use 3.14 as pi then multiply
[tex]64 \times 3.14[/tex]
Which is 200.96
9. Kiara went to the restaurant and waited 3.5 minutes. Use the trendline
equation to predict how many employees were working. Round to the
nearest whole number if necessary.*
Your answer
Answers
Answer:
around 1 employee
Step-by-step explanation:
What is the volume of the figure? please help fassttt
Answers
Answer: 16 + 200 = 216
Step-by-step explanation:
Can someone please help me with this .. ASAP
Answers
Answer:[tex]\frac{-5}{4}, \frac{3}{4}[/tex]
Step-by-step explanation:
Given
[tex]\theta[/tex] is in the third quadrant and
[tex]\Rightarrow \cos \theta=\frac{-3}{5}[/tex]
tan and cot is positive in the third quadrant and the rest are negative
using identity
[tex]\sin^2 \theta+\cos^2 \theta=1\\\Rightarrow \sin \theta=-\sqrt{1-\cos^2 \theta}\\\Rightarrow \sin \theta =-\sqrt{1-(-\frac{3}{5}^2)}\\\Rightarrow \sin \theta =-\frac{4}{5}\\\Rightarrow\text{cosec} \theta=-\frac{5}{4}\\\Rightarrow \cot \theta=\frac{\cos \theta}{\sin \theta}=\frac{\frac{-3}{5}}{\frac{-4}{5}}=\frac{3}{4}[/tex]
find the slope of the line using the points given (5,3) and (5,-9)
Answers
Answer:
the slope is undefined
Answer:
-12/0 undefined
Step-by-step explanation:
use the formula
y2-y1
--------
x2-x1
-9-3 -12
----- = ----
5-5 0
Help me out with these will give points!!!
Answers
Answer:
the first 2 one is put on the right and the other on the left and the second 2 but one in the middle and one on the left!
Step-by-step explanation:
Please help me with algebra
Answers
Answer:
Step-by-step explanatio
Answer:
It's the second answer
Step-by-step explanation:
For 4 games on thursday you pay $16 while on saturday you pay $18. If you need a better explanation I can give it to you.
what is the volume of a square pyramid with a base length of 4 cm and a height of 9 cm
Answers
Fifty cupcakes cost 129. What is the unit price for one cupcake?
Answers
Explanation:
129/50
=2.58
Answer2.58
Step-by-step explanation:
129 / 50 = 2.58
What is the answer to 3a + 18 = 12
Answers
Hope this helps
Aniyah has 12.9 pounds of pretzels. She puts the pretzels into bags that each hold 0.3 pounds. How many bags does Aniyah need to use to evenly distribute the pretzels?
Answers
Answer:
43 Bags
Step-by-step explanation:
12.9 divided by 0.3 equals 43 and 43 multiplied by 0.3 is 12.9.
can you answer this please. I need help
Answers
Answer:
c
Step-by-step explanation:
can i get brainliest please???
it would be very much appreciated
have a nice day :)
i got griefed last time so help me out please
Answers
Answer:
Step-by-step explanation:
a)y=2x+3
b)y=2x+2
c)y=-2x+3
The points (3, 9) and (–3, –9) are plotted on the coordinate plane using the equation y = a • x. What is the value of a? Enter your answer in the box.
Answers
Answer: a = 3
Step-by-step explanation:
PLEASE HELP ASAP!!!WILL GIVE BRAINLEAST
Choose the explanation that shows why ΔADE is similar to ΔABC.
A. A dilation with center (0, 0) and scale factor 12 maps ΔABC to ΔADE.
B.A dilation with center (0, 0) and scale factor 2 maps ΔABC to ΔADE.
C.A translation 4 units right and 4 units up maps ΔABC to ΔADE.
D.A rotation 90° about the origin and a translation 2 units up maps ΔABC to ΔADE.
Answers
Answer:
The answer is C
Step-by-step explanation:
Hope this helps
factored form for x^2 + 8x + 3
Answers
Answer:
x = [-b +- sqrt(b^2-4ac)]/2a
Step-by-step explanation:
How is a system of two linear inequalities in two variables different to a system of two linear equations in two variables? Choose the correct answer
OA A system of two linear inequalities is different from a system of two linear equations. It is not possible to have no solution for a system of two linear
inequalities while a system of two linear equations it is
OB. A system of two linear inequalities is different from a system of two linear equations. A system of two linear inequalities does not have to be equivalent to
have infinitely many solutions while a system of two linear equations does need to be equivalent.
OC. A system of two linear inequalities is different from a system of two linear equations. The solution to a system of two linear inequalities is the point of
intersection while the solution to a system of two linear equations is a shaded region
OD. A system of two linear inequalities is different from a system of two linear equations. A system of two linear inequalities always has more than one solution
while there can only be one solution to a system of two linear equations
Answers
Answer:
i would say D two linear inequalities always have more than 1 solution while equations only have 1
Option D is correct. A system of two linear inequalities always has more than one solution while there can only be one solution to a system of two linear equations.
What is Inequality?a relationship between two expressions or values that are not equal to each other is called 'inequality.
We need to check How is a system of two linear inequalities in two variables different to a system of two linear equations in two variables
A linear inequality is an inequality which involves a linear function. A linear inequality contains one of the symbols of inequality.
A system of linear equations is usually a set of two linear equations with two variables.
A system of two linear inequalities is different from a system of two linear equations. A system of two linear inequalities always has more than one solution while there can only be one solution to a system of two linear equations.
Hence, option D is correct. A system of two linear inequalities always has more than one solution while there can only be one solution to a system of two linear equations.
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howwwww do you solve this
Answers
Answer:
pay attention in class or be gifted with super smarts
Step-by-step explanation:
Answer:
x = 2
Step-by-step explanation:
4x - 2 = 2x + 2
4(2) - 2 = 2(2) + 2
x = 2
Simplify the mathematical expressions and arrange them in order of their values from least to greatest
(4.27x108).(9.2x10-5)
(6.96x105). (8.43x10–2)
(7.25 x 105). (9.36 x 10-?)
(7.95 x 10-2). (4.13 x 10-3)
(8.32 X 104). (9.67 x 101)
(7.56 x 1011). (5.79 x 10-8)
(1.89 x 104).(5.92 x 103)
Answers
Answer:
the correct order
(8.32 X 104). (9.67 x 101)
(7.25 x 105). (9.36 x 10-?)
(4.27x108).(9.2x10-5)
(6.96x105). (8.43x10–2)
(1.89 x 104).(5.92 x 103)
Step-by-step explanation:
i got it all correct that is the right order.
volume of a cylinder
Answers
Answer:
A
Step-by-step explanation:
The volume (V) of a cylinder is calculated as
V = πr²h ( r is the base radius and h the height )
Here r = 6 and h = 8, then
V = π × 6² × 8 = π × 36 × 8 = 288π cm³ → A
10. Find the slope. Make sure to reduce.
Answers
Answer:
2
Step-by-step explanation:
Count each unit the blue line is covering.
Please help me with the question please ASAP ASAP please please ASAP please please help please please ASAP please please IM BEGGING FOR Help
Answers
Answer:
Ok if you look at the figure, it is a vertical angle. This means that the angle opposite to each other is congruent.
m<1 is congruent to m<3
m<2 is congruent to m<4
m<3 is 60⁰ and is congruent to m<1. This means that m<1 is 60⁰. m<4 is 30⁰ and is congruent to m<2. This means that m<2 is 30⁰.
m<1 = 60⁰
m<2 = 30⁰
m<3 = 60⁰
m<4 = 30⁰
Hope this helps, thank you :) !!
Sophie uses 18 beads to make a necklace. Three-sixths of the beads are purple. How many beads are purple? 6 9 12 15
Answers
Answer:
9
Step-by-step explanation:
If 3/6 of the 18 beads are purple we need to simplify 3/6. 3/6 is the same as 1/2. And 1/2 of 18 is 9.
Use the formula V=Bh to find the volume of a gift box
that is 3.5 inches high, 7 inches long, and 6 inches wide.
Answers
Answer: 147 cubic inches
Step-by-step explanation: (7 x 6) x 3.5
A cell phone manufacturer found that on average 1.25% of every hundred cell phone produced by the companies factory how did defective a antenna what decimal is equivalent to 1.25%
Answers
Answer:
0.0125
Step-by-step explanation:
Percentage of defective antenna per 100 cellphones = 1.25%
The decimal equivalent of the percentage of defective antenna cellphone per 100 cellphones :
1 25% = 1.25 / 100 = 0.0125
Simplify 3f-2f+f I need a answer for that please
Answers
Answer:
2f
Step-by-step explanation:
3f-2f+f | Given
1f + f | Subtract 3f and 2f
2f | Add 1f and 1f.
Calculate the volume of the cube. s= 3 in.
Help plz I will mark the first answer as brainilist
Answers
Answer:
27
Step-by-step explanation:
:( helpppppoooooooooo
Answers
Step-By-Step Explanation:
Answer:
the correct answer is A.
Step-by-step explanation:
what is 5/12 divided by 4/3
Answers
Answer:
5/6
Step-by-step explanation:
0.41/1.33=0.3125=5/6