Answer:
q = 70°
Step-by-step explanation:
The 3 angles form a straight angle and sum to 180° , that is
q + 52° + 58° = 180°
q + 110° = 180° ( subtract 110° from both sides )
q = 70°
Answer:
q=70
Step-by-step explanation:
All the angles added up adds up to 180 so all you have to do is subtract the known angles from 180. Your equation should look like this
180-52-58=70
A car dealership buys a car for $12,500. They sell the car for $15,750. What is the percent markup?
Answer: 26%
Step-by-step explanation:
The formula to calculate the percentage markup is given as:
= Selling price - Cost / Cost price × 100
where selling price = $15750
Cost price = $12500
Percentage markup = ($15750 - $12500) / $12500 × 100
= $3250/$12500 × 100
= 26%
Answer: 26
Step-by-step explanation:
12,500 - 15,750= 3250
Help Asap if i can i will give brainliest
Answer:
10x+2y
8c+2
0
Step-by-step explanation:
Need help as fast as possible please
I will mark BRAINLIST only for correct answers :)
Thank you!
Answer:
Correct Answer
Step-by-step explanation:
Mark as brainliest now NOW!
Determine the value of m∠DCB.
Answer:
Angle DCB is Equal to 78
Step-by-step explanation:
4x+2 + 3x+3 =180
7x +5=180
7x=175
x=25.
Then put the x in the 3x+3
3(25) +3 = 78
so DCB = 78
Find the slope of the line y=-6x-4. Type your answer as an integer.
Answer:
The slope is -6
Step-by-step explanation:
In the slope intercept form, it is y=mx+b, where m is the slope and b is the y-intercept
Therefore, -6 is slope and -4 is y-intercept
Joanne bought 5 candy bars for $3.50. How much is each candy bar? pls help !!
Answer:
70 cents
Step-by-step explanation:
all you have to do is divide $3.50 and 5 :)
whatt does 5x + 9y =8 equals.
Answer:
x=8/5−9y/5
Y=8/9−5x/9
Step-by-step explanation:
Answer:
If ur solving for x, then x equals 8/5 - 9y/5
Step-by-step explanation:
If l, m, and n are parallel, solve for x
Answer:
The picture is non-existent.
For every person who has the flu, there are 6 people who have only flu-like symptoms. If a doctor sees 40 patients, determine approximately how many patients you would expect to have only flu-like symptoms.
Answer:
Approximately 7 people.
Step-by-step explanation:
Make a proportion of x/6 and divide 40 by 6. We get 6.23333...
This is approximately 7 people.
PLS HELP!! GIVING BRAINLIST
Answer:
x=2
y=0
Step-by-step explanation:
8x - 4y = 16
solve for x
8x = 4y + 16
divide 8 by all terms
x = 2 + [tex]\frac{y}{2}[/tex]
Insert x in second equation
8(2+y/2)+4y=16
solve
y=0
x=2
can somebody help me
Answer:
m=1/2
Step-by-step explanation:
your answer is right
When Mei solved the system of equations below, she got the
solution x = 4, y = 2. Without solving the system, yourself, can you
tell her whether this solution is correct?
4x + 3y = 22
x - 2y = 0
No
yes
Both
Answer:
yes
yes is answer of this equation
Answer:
answer is yes
Step-by-step explanation:
Fill in the blank to make an equivalent ratio.
4:7 = ______ : 56
Answer:
4:7 = 32:56
Step-by-step explanation:
4 x 8 = 32
7 x 8 = 36
Hope this helped!
PLZZZZZ give me brainliest
Answer: 32:56
Step-by-step explanation:
because first I divided 56/7=8 and then did 4*8=32. You're welcome!!! c:
help me please this is timed!!
Answer:
i think a
Step-by-step explanation:
prove it please
answer only if you know
Part (c)
We'll use this identity
[tex]\sin(x+y) = \sin(x)\cos(y) + \cos(x)\sin(y)\\\\[/tex]
to say
[tex]\sin(A+45) = \sin(A)\cos(45) + \cos(A)\sin(45)\\\\\sin(A+45) = \sin(A)\frac{\sqrt{2}}{2} + \cos(A)\frac{\sqrt{2}}{2}\\\\\sin(A+45) = \frac{\sqrt{2}}{2}(\sin(A)+\cos(A))\\\\[/tex]
Similarly,
[tex]\sin(A-45) = \sin(A + (-45))\\\\\sin(A-45) = \sin(A)\cos(-45) + \cos(A)\sin(-45)\\\\\sin(A-45) = \sin(A)\cos(45) - \cos(A)\sin(45)\\\\\sin(A-45) = \sin(A)\frac{\sqrt{2}}{2} - \cos(A)\frac{\sqrt{2}}{2}\\\\\sin(A-45) = \frac{\sqrt{2}}{2}(\sin(A)-\cos(A))\\\\[/tex]
-------------------------
The key takeaways here are that
[tex]\sin(A+45) = \frac{\sqrt{2}}{2}(\sin(A)+\cos(A))\\\\\sin(A-45) = \frac{\sqrt{2}}{2}(\sin(A)-\cos(A))\\\\[/tex]
Therefore,
[tex]2\sin(A+45)*\sin(A-45) = 2*\frac{\sqrt{2}}{2}(\sin(A)+\cos(A))*\frac{\sqrt{2}}{2}(\sin(A)-\cos(A))\\\\2\sin(A+45)*\sin(A-45) = 2*\left(\frac{\sqrt{2}}{2}\right)^2\left(\sin^2(A)-\cos^2(A)\right)\\\\2\sin(A+45)*\sin(A-45) = 2*\frac{2}{4}\left(\sin^2(A)-\cos^2(A)\right)\\\\2\sin(A+45)*\sin(A-45) = \sin^2(A)-\cos^2(A)\\\\[/tex]
The identity is confirmed.
==========================================================
Part (d)
[tex]\sin(x+y) = \sin(x)\cos(y) + \cos(x)\sin(y)\\\\\sin(45+A) = \sin(45)\cos(A) + \cos(45)\sin(A)\\\\\sin(45+A) = \frac{\sqrt{2}}{2}\cos(A) + \frac{\sqrt{2}}{2}\sin(A)\\\\\sin(45+A) = \frac{\sqrt{2}}{2}(\cos(A)+\sin(A))\\\\[/tex]
Similarly,
[tex]\sin(45-A) = \sin(45 + (-A))\\\\\sin(45-A) = \sin(45)\cos(-A) + \cos(45)\sin(-A)\\\\\sin(45-A) = \sin(45)\cos(A) - \cos(45)\sin(A)\\\\\sin(45-A) = \frac{\sqrt{2}}{2}\cos(A) - \frac{\sqrt{2}}{2}\sin(A)\\\\\sin(45-A) = \frac{\sqrt{2}}{2}(\cos(A)-\sin(A))\\\\[/tex]
-----------------
We'll square each equation
[tex]\sin(45+A) = \frac{\sqrt{2}}{2}(\cos(A)+\sin(A))\\\\\sin^2(45+A) = \left(\frac{\sqrt{2}}{2}(\cos(A)+\sin(A))\right)^2\\\\\sin^2(45+A) = \frac{1}{2}\left(\cos^2(A)+2\sin(A)\cos(A)+\sin^2(A)\right)\\\\\sin^2(45+A) = \frac{1}{2}\cos^2(A)+\frac{1}{2}*2\sin(A)\cos(A)+\frac{1}{2}\sin^2(A)\right)\\\\\sin^2(45+A) = \frac{1}{2}\cos^2(A)+\sin(A)\cos(A)+\frac{1}{2}\sin^2(A)\right)\\\\[/tex]
and
[tex]\sin(45-A) = \frac{\sqrt{2}}{2}(\cos(A)-\sin(A))\\\\\sin^2(45-A) = \left(\frac{\sqrt{2}}{2}(\cos(A)-\sin(A))\right)^2\\\\\sin^2(45-A) = \frac{1}{2}\left(\cos^2(A)-2\sin(A)\cos(A)+\sin^2(A)\right)\\\\\sin^2(45-A) = \frac{1}{2}\cos^2(A)-\frac{1}{2}*2\sin(A)\cos(A)+\frac{1}{2}\sin^2(A)\right)\\\\\sin^2(45-A) = \frac{1}{2}\cos^2(A)-\sin(A)\cos(A)+\frac{1}{2}\sin^2(A)\right)\\\\[/tex]
--------------------
Let's compare the results we got.
[tex]\sin^2(45+A) = \frac{1}{2}\cos^2(A)+\sin(A)\cos(A)+\frac{1}{2}\sin^2(A)\right)\\\\\sin^2(45-A) = \frac{1}{2}\cos^2(A)-\sin(A)\cos(A)+\frac{1}{2}\sin^2(A)\right)\\\\[/tex]
Now if we add the terms straight down, we end up with [tex]\sin^2(45+A)+\sin^2(45-A)[/tex] on the left side
As for the right side, the sin(A)cos(A) terms cancel out since they add to 0.
Also note how [tex]\frac{1}{2}\cos^2(A)+\frac{1}{2}\cos^2(A) = \cos^2(A)[/tex] and similarly for the sin^2 terms as well.
The right hand side becomes [tex]\cos^2(A)+\sin^2(A)[/tex] but that's always equal to 1 (pythagorean trig identity)
This confirms that [tex]\sin^2(45+A)+\sin^2(45-A) = 1[/tex] is an identity
Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. Release your mouse button when the item is place. If you change your mind, drag the item to the trashcan. Click the trashcan to clear all your answers.
Complete the following proof.
Given: Two concentric circles with AB tangent to smaller circle at R
Prove: AR = RB
Step-by-step explanation:
The statements are
1.Draw Oa,Ob
2.OR is perpendicular to AB
3.OR is congruent to OR
4.OA is congruent to OB
5.Triangle AOR is congruent to BOR.
6.AR is congruent to AB.
The reasons are
1.Auxalaritly lines
2 Radius are perpendicular to tangent
3.Reflexitive
4.Radii of same circle are equal
5.HL theorem, (since we know hypotenuse and a leg)
6.CPCTC
One-third of a number decreased by six equals eight. What is the number?
6
Answer:
The number is 42.
1) Evaluate 3+ (a + 4)(8 – b) when a
5 and b = 6
Answer:
21
Step-by-step explanation:
3+(5+4)(8-6)
3+(9)(2)
3+18=21
Answer:
The answer is 21
Step-by-step explanation:
3+(a+4)(8-b)
3+(5+4)(8-6)
3+9x2
3+18
21
Hope this helps
3/4 x 12 plzz help has to be finished at 11 am
Answer:
The answer is 9.
Answer:
3/4 ×12 = 9
Multiple 3/4 by 12
And it Equal to 9
i need help with the answers
Answer:
1.A
2.C
3.D
4.B
5.C
6.A
Consider the system of equations below.
4x – 8y = 12
11x + 7y = 33
Answer:
x = 3
y = 0
Step-by-step explanation:
Please help me it says What kind of triangle makes the Pythagorean theorem true?what angle does it need to have?
right triangle
Step-by-step explanation:The sides of a right triangle in a simple way, so that if the lengths of any two sides are known the length of the third side can be found.
hope it helps.
In triangle FGH, an exterior angle at F measures 70°, and triangle?
Answer:
110, 35, 35
Step-by-step explanation:
Plz help me out xx tysm
Answer:
see explanation
Step-by-step explanation:
let the number be x , then
[tex]\frac{1}{2}[/tex] x = 44.3 ← is the equation
Answer:
x / 2 = 44.3
Hope that helps!
Step-by-step explanation:
dose the following table of points represent a function
Answer:
no
Step-by-step explanation:
theres no common theme between the x and y variable
2. Complete the function
table using the rule
y = x + 4.5
Answer:
Step-by-step explanation:
Given function is,
y = x + 4.5
To complete the input-output table given in the picture we will substitute the values of x in the function rule,
For x = 1,
y = 1 + 4.5
y = 5.5
For x = 3
y = 3 + 4.5
y = 7.5
Therefore, complete table will be,
x 0 1 2 3
y 4.5 5.5 6.5 7.5
A trampoline has a jumping surface that is 15.7 ft. long and 12 ft. wide. What is the area of the jumping surface?
Answer:
188.4
Step-by-step explanation:
because if you multiply 15.7 and 12 you get 188.4 and that is the area of the jumping space.
Answer:
area = length×wide=15.7×12=188.4ft²
Write the equation of the line passing through the point (-2; 2) that is
PERPENDICULAR to y = -2x + 1 in slope-intercept form. 
Answer:
2y-x-6=0
Step-by-step explanation:
LMNP is rotated 180° clockwise around the origin.
Answer:
The correct answer is B
Step-by-step explanation:
-3,-4
Coordinates of M are (-3, -4) as LMNP rotates 180° clockwise.
What is clockwise rotation?
" Clockwise rotation means when any object is moving in the direction of hands of clock."
According to the question,
As per the diagram ,
Coordinates of M are ( 3, 4)
Rotation of a point through 180° about the origin when a point M( x, y) is rotated about the origin through 180° in anticlockwise or clockwise direction, it takes the new coordinates ( -x ,-y).
Therefore , coordinates of M are ( -3, -4).
Hence, coordinates of M are (-3, -4) as LMNP rotates 180° clockwise.
Learn more about clockwise rotation here
https://brainly.com/question/14701550
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Round 1.823 to the nearest whole number.
Answer:
2
Step-by-step explanation:
Look at the ones place (1). Look to the right of it (8). Since 8 is more than 4, raise the 1 to the next number, 2. So rounded to the nearest whole number, the decimal 1.823 is 2.
Hope it helps!