Answers
Answer:
y = 65°
Step-by-step explanation:
z = 70° (corresponding angels are equal)
y + z = 135° (exterior angle theorem of a triangle)
y + 70 = 135 (substitution)
Subtract 70 from each side
y + 70 - 70 = 135 - 70
y = 65
Related Questions
Someone was shopping at a store that advertised 50% off everything. She found a new CD player originally priced at $76. What was the sale price?
Answers
Answer:
38
Step-by-step explanation:
-5x -2y= -9
8x + 8y= 24
Answers
Answer:
x=5
y=-17
Step-by-step explanation:
basically what I did was:
1) I multiplied the first equation by 4 , solved for x
2) I used the value of x that i found and substituted in one of the equations to find y
Answer: x=0 y=2
..................
Simplify. -y -7x + 7y
The simplified expression is ___y - ____x.
Answers
Answer:
the simplified expression is: 6y-7x
Step-by-step explanation:
-y+7y= 6y
-7x
= 6y-7x
Two vertical posts stand side by side. One post is 8 feet tall while the other is 17 feet tall. If a 24 foot wire is stretched between the tops of the posts, how far apart are the posts?
Answers
Answer:
22 1/4 feet
Step-by-step explanation:
you can sketch this problem to be a right triangle with a hypotenuse of 24 feet and one leg of 9 feet (17 - 8).
use Pythagorean Theorem to find the base side, which represents the distance between the posts
a² + 9² = 24²
a² + 81 = 576
a² = 576 - 81
a² = 495
a = [tex]\sqrt{495}[/tex]
a = [tex]\sqrt{9}[/tex] · [tex]\sqrt{55}[/tex] = 3[tex]\sqrt{55}[/tex], which is approx 22.25
Answer:
about 22.25 feet
Step-by-step explanation:
You can think of it like a triangle, which you can see at the bottom
Then, use the pythagorean theorem, [tex]a^2 + b^2 = c^2[/tex].
you have a = 9 and c = 24, so
[tex]9^2 + b^2 = 24^2\\81 + b^2 = 576\\b^2 = 495\\b = \sqrt{495} = 3\sqrt{55} = about 22.25[/tex]
Select an equation of a parabola that has a vertex at (2,-1) and a zero at x=3 .
A. y=x² -4x+ 5
B. y=x² -4x + 3
C. y=x² + 4x -21
D. y=x² + 4x +3
Answers
help i hate .math..........
Answers
6 divided by [tex]\frac{8}{9}[/tex] is the same as 6/1 multiplied by 9/8, which gives us 7 as the whole answer. therefore, I think number 1 and 4 are the correct selections
Robert has 6 pints of water to use on 5 plants.
If Robert gives each plant the same amount, how many pints of water will each plant get?
A. 5/6
B. 1
C. 1 1/5
D. 5
Answers
Answer
I think the answer is B)
Step-by-step explanation:
because I subtracted 6 and 5 because Robert has 6 pints of water and there's 5 plants
How many solutions does 15x+12y=18 have
Answers
Answer: 2 or more.
X and Y could be anything, so there are at least two answers
please help! find QPR
Answers
Answer:
m∡QPR = 25°
Step-by-step explanation:
solve for 'x':
8x + 7 + 9x + 16 = 40
17x + 23 = 40
17x = 17
x = 1
m∡QPR = 9(1) + 16
m∡QPR = 25°
Parker drove 8 miles in 15 minutes. If he drove at a constant rate, how far did he travel in one hour?
Answers
32 miles
me podrían decir cuanto es 21/43+8/17 plis
Answers
Answer:
701/731
Step-by-step explanation:
Espero que ayude
puedes marcarme branliest??
Answer:
701
------- = 0.958960328
731
Step-by-step explanation:
21/43 + 8/17 es
21/43 + 8/17
21 8 701
---- + ----- = -----
43 17 731
Simplify the polynomial by combining like terms. Make sure your anwser is in standard form: 4x + 7 - 8x (2) + 2x + 5x (2) - 11
Also, keep in mind that the numbers that are in parenthesis are the exponents.
Answers
Answer:
-3x² + 6x - 4Step-by-step explanation:
Simplify:
4x + 7 - 8x² + 2x + 5x² - 11 =x²(-8 + 5) + x(4 + 2) + (7 - 11) =-3x² + 6x - 4Answer:
[tex] \tt \huge \boxed{ \boxed{\color{silver} { - 3x}^{2} + 6x - 4}}[/tex]
Step-by-step explanation:
to understand thisyou need to know about:algebraalgebraic addition subtractionPEMDAStips and formulas:quadratic expression standard form:ax²+bx+corder of PEMDASparenthesesexponentmultiplication ordivisionadditionsubtractionleft to rightgiven:4x+7-8x²+2x+5x²-11to dosimplificationlet's do:[tex]step - 1 : define[/tex]
[tex] \sf 4x + 7 - {8x}^{2} + 2x + {5x}^{2} - 11[/tex]
[tex]step - 2 : simplify[/tex]
[tex] \tt \: rewrite : \\ \sf {8x}^{2} + {5x}^{2} + 4x + 2x + 7 - 11[/tex][tex] \tt \:combine \: like \: terms: \\ \sf { - 3x}^{2} + 6x + 7 - 11[/tex][tex] \tt \: substrak : \\ \sf { - 3x}^{2} + 6x - 4[/tex]therefore
we can see the expression is in standard form since a,b and c is -3,6 and -4
also let's justify it
substitute the value of a,b and c respectively
(-3)x²+(6)x+(-4)
-3x²+6x-4 (proven)
mrs.gretta is teaching a 5th grade class. She is standing 12 meters in front of ethan. isabella is sitting to ethans right. if isabella and mrs.gretta are 15 meter apart how far apart are ethan and isabella?
Answers
Answer:
Ethan and Isabella are 9 meters apart.
Step-by-step explanation:
1. We can solve this using the Pythagorean Theorem, a²+b²=c².
2. Mrs. Gretta is standing 12 meters in front of Ethan, so a=12.
3. Isabella is sitting to Ethan's right, but we don't know how far away, so b=x.
4. Mrs. Gretta is 15 meters from Isabella, so c=15.
5. Plugging these variables into the equation, we get 12²+x²=15² which equals 144+x²=225.
6. We can move 144 to the other side to get x²=81, then square the 81 to get x=9.
7. Therefore, the answer is 9. Ethan and Isabella are 9 meters apart.
What's the coefficient of -C.
Answers
Answer:
here we have -C
The Coefficient of -C is -1
the scale price is 120% . This is 75% of the original price. find the original price
Answers
Answer:
160%
Step-by-step explanation:
120% = 75%
1.6%=1%
160%=100%
therfore 160% is the original
The prime factorization of 16x5
Answers
Answer:
well first 16x5=80
2 * 2 * 2 * 2 * 5
Step-by-step explanation:
Hope that helps! :)
pls help meh
6th grade math
Answers
Answer:
1,728%
Step-by-step explanation:
multiply baby
What is the length of AB
Answers
d
Step-by-step explanation:
because that is the answer
Weird question but, whenever you divide by 1/4 or multiply by 4/1, will you always get the same answer.
(25 points if you answer this.)
Answers
Answer:
yep
Step-by-step explanation:
when you divide a fraction u can use the KCF method which is basically:
(keep) the first fraction the same
(change) the division sign in the middle to a multiplication sign
(flip) the second fraction
basically because you have to flip the 1/4 when you divide it, it'll be the same as a 4/1 anyways
please help!!! A pair of parallel lines are reflected. Which of these could be the result? thankyou!! (will mark brainliest
Answers
Answer:
C
Step-by-step explanation:
parallel lines never cross
What is 49/50 equivalent to as a decimal and as a percent
Answers
What number replaces C to complete the square of the equation below
Find the solution to problem seven using the complete square method
Answers
Answer:
c= 25, solutions: x = 3, x= -13
Step-by-step explanation:
(10/2) ^2 = 25
(x+5)^2 = 64
8th grade teachers and students from M.I.T went on a field trip to an zoo. Tickets
were $5.00 each for teachers and$3.50 each for students, and the group paid
$51.50 in total.A few weeks later, the same group visited a natural history
museum where the tickets cost $20.00 each for teachers and $8.50 each for
students, and the group paid $156.50 in total.
Find the number of teachers and students on the field trips.
A 4 Teachers and 9 Students
4 Teachers and 10 Students
3 Teachers and 9 Students
D None of the above
Answers
As there are multiple answers going with trial and error seems good in this case.
A
5.00 + 5.00 + 5.00 + 5.00 = 20.00
3.50 + 3.50 + 3.50 + 3.50 + 3.50 + 3.50 + 3.50 + 3.50 + 3.50 = 31.5
20.00 + 31.5 = 51.5
B
5.00 + 5.00 + 5.00 + 5.00 = 20.00
3.50 + 3.50 + 3.50 + 3.50 + 3.50 + 3.50 + 3.50 + 3.50 + 3.50 + 3.50 = 35.00
20.00 + 35.00 = 55.00
C
5.00 + 5.00 + 5.00 = 15.00
3.50 + 3.50 + 3.50 + 3.50 + 3.50 + 3.50 + 3.50 + 3.50 + 3.50 = 31.5
15.00 + 31.5 =46.5
Knowing that for the first one all A,B, and C were wrong we can determine that D is the answer. But wait if I made one mistake and didn't understand if $156.5 is equivalent to $156.50 that would mean A is correct.
Always recheck your answers and good luck,
Jon
The measure of two side of a triangle are given. If p is the perimeter and p=18x+9y find the measure of the third side?
Answers
Answer:
2x + 2y
Step-by-step explanation:
10x + 5y - ( 3x + 4y + 5x - y )
10x + 5y - 3x - 4y - 5x + y)
2x + 2y
A new watch costs $38.85, and a new bracelet costs $22.38. If Maddy buys both, how much does she spend?
Answers
$61.23
Explanation:
$38.85 + $22.38 = $61.23
Answer:
maddy will spend $61.23
Step-by-step explanation:
add $22.38 to $38.85
The table shows the relationship between c, the number of calories burned and f, the number of stairs climbed. What is the equation that best represents the relationship between f and c shown in the table?
Answers
Answer:
c=5f
Step-by-step explanation:
the number of calories burned is five per each flight of stairs
solve the inequality -5(x-7)<15 algebraically for x.
Answers
Hope this helps
Answer:
4
Step-by-step explanation:
1. Divide both sides by -5
2. add 7 to both sides
The total cost of a compact disc, including a 6% sales tax, is $14.31.
What is the price before the tax?
$13.50
$13.45
$13.44
$15.17
Answers
$13.50 • 1.06 is $14.31
The cost of a compact disc before the sale tax is $13.45. The correct option is B.
What is the percentage?The percentage is defined as representing any number with respect to 100. It is denoted by the sign %. The percentage stands for "out of 100." Imagine any measurement or object being divided into 100 equal bits.
Given that the total cost of a compact disc, including a 6% sales tax, is $14.31.
The cost before the sale tax will be calculated as,
Cost = 14.31 x ( 1 - 0.06 )
Cost = 14.31 x 0.94
Cost = $13.45
To know more about percentages follow
https://brainly.com/question/24304697
#SPJ5
Whats 2/3×(-3) this is multiplication
Answers
Answer: -2
your welcome :)
75 times 243
If your doing just for points I’ll report you