Answers
Answer:
y= -1
Step-by-step explanation:
subtract, so x cancels out.
you are left with 2y=-2
y= -1
Answer:
y = - 1
Step-by-step explanation:
x + y = 1 .......... (1)
x - y = 3 .......... (2)
(1) + (2)
2x = 4 ⇒ x = 2
2 + y = 1 ⇒ y = - 1
(2, - 1)
Related Questions
A rocket is launched from a tower. The height of the rocket, y in feet, is related to the time after launch, x in seconds, by the given equation. Using this equation, find the time that the rocket will hit the ground, to the nearest 100th of second.
y=-16x^2+116x+75
Answers
Answer:
7.85
Step-by-step explanation:
the other guy is incorrect,
complete the equation of the line whose slope is -2 and y-intercept is (0,-8)
y= ????
Answers
Answer:
y = -2x - 8
Step-by-step explanation:
Slope-intercept form is y = mx + b. Slope is m, and y-intercept is b. To do this, we substitute -2 for m and -8 for b. When we do this, we get y = -2x + -8. We can simplify this to y = -2x - 8.
An online book store has 182 boxes of books in its warehouse. Each box has 32 books.
Part A
Which equation represents the best estimate of the total number of books in the warehouse?
180 × 30 = 5,400
180 × 40 = 7,200
190 × 40 = 7,600
200 × 40 = 8,000
Part B
Is the best estimate in Part A an underestimate or an overestimate? Explain.
It is an underestimate. The rounded value for 182 is less than 182, and the rounded value for 32 is less than 32. The estimated product must be less than the exact product.
It is an overestimate. The rounded value for 182 is greater than 182, and the rounded value for 32 is greater than 32. The estimated product must be greater than the exact product.
It is an overestimate. The rounded value for 182 is greater than the rounded value for 32. The estimated product must be greater than the exact product.
It is an underestimate. The rounded value for 32 is closer to 32 than the rounded value for 182 is to 180. The estimated product must be less than the exact product.
Answers
180 x 30
part b:
underestimate. the rounded value is less than the original number
Answer:
Part is A. Part B is underestimate. Part C (for the choose drop-off boxes are these: 1# < 2# < 3# <
Step-by-step explanation:
I took the test, hope it helps.
What is the measure of angle L?
What is the length of JL?
What is the length of KL?
Please help
Answers
Answer:
53
Step-by-step explanation:
[tex]K+J+L = 180\\90 + 37 + L = 180\\L = 53[/tex]
Can someone tell me how to do a transversal angle measurement with steps and angles
Answers
Answer:
Sorry I am not sure but when I figure it out..... I prolly won't
Step-by-step explanation:
Answer:
When two lines are cut by a transversal, the pairs of angles on one side of the transversal and inside the two lines are called the consecutive interior angles . If two parallel lines are cut by a transversal, then the pairs of consecutive interior angles formed are supplementary
Step-by-step explanation:
Need help will give 15 points!!
Answers
Answer:cool
Step-by-step explanation:
help easy alll you have to do is drag arrows wich i will be doing to the finish line have any questions comment!!!
Answers
Answer:
tyreagdfasgavgcrec
Step-by-step explanation:
aerbygrsyhbrsvd
what is x i need it done soon
Answers
Answer:
C. 65
Step-by-step explanation:
All the angles in a triangle add up to 180 degrees.
180-62-53 = 65
3(2(8-2x4)+25divided by 5 )-(2(8 divided by 4x2)-7(7-2x3)
Answers
Answer: 3(2(8-2x4)+25divided by 5 )-(2(8 divided by 4x2)-7(7-2x3
The answer is 14
What is n2+5 If n=5?
Answers
Is that cube or n just multiply to 2?
Answer:
15
Step-by-step explanation:
n is 5 so 5 times 2 equals 10 and plus 5 it equal 15
A triangle has one angle that measures 42°. Which of the following could be the measures of the other two angles?(1 point) 54° and 84° 42° and 42° 90° and 58° 102° and 216°
Answers
Answer:
54° and 84°
Step-by-step explanation:
i just took test
The 7th grade basketball team has won 15 games out of the 20 games they have played this season. If they were to keep up this winning ratio, what is the probability they will win their next game?
Answers
Answer: 3/4
Step-by-step explanation:
PLEASE ANSWER ASAP!
2(h -3.5) = -11
what is h?
Answers
Answer: -2
Step-by-step explanation:
2(h -3.5) = -11 Distributive property
2h - 7 = -11. Add 7 to both sides
2h = -4. Divide both sides by 2
h = -2
Answer: The answer is -2 :)
Step-by-step explanation: 2(h -3.5) = -11 distributive propert
2h-7=-11 Add -7 to both side
+7 =+7
2h=-4 Divide 2 to both side
2 = 2
h=-2
Pythagorean Theorem Quiz.
1.) Find the unknown side length. Simplify answers that are radicals.
4
3
2.) Find the unknown side length. Simplify answers that are radicals.
16
12
Answers
Answer:
1.) 5 2.) 10.58
Step-by-step explanation:
For each one, you use the equation a^2 + b^2 = c^2 where c is the "hypotenuse"-- the side of the triangle opposite (facing) the right angle which is shown with a small box. The variables a and b do not matter, as long as they are the "legs", the other 2 sides.
So it is 4^2 + 3^2 = c^2 which simplifies to 16+9=25=c^2 and square root both sides and you get c=5
and 12^2 + b^2 = 16^2 which simplifies to 144+ b^2 = 256 and subtract 144 from both sides and you get b^2 = 112 and square root both sides and it is approximately 10.6 :)
Find the area of a circle with a diameter of \color{green}{16}16start color green, 16, end color green.
Either enter an exact answer in terms of \piπpi or use 3.143.143, point, 14 for \piπpi and enter your answer as a decimal.
units^2
2
Answers
Answer:
64π
Step-by-step explanation:
no
You are running a concession stand at a basketball game. You are selling hot dogs and
sodas.Each hot dog costs $1.50 and each soda costs $ 0.50. At the end of the night, you made a total of
$78.50. You sold a total of 87 hot dogs and sodas combined. You musſt report the number of hot dogs
sold and the number of sodas sold. How many hot dogs were sold and how many sodas were sold?
Answers
Answer: 52
Step-by-step explanation: Friend me and yes that is right!
• The average cow drinks 168 quarts of water each day. Given that there
are 4 quarts to one gallon, how many gallons of water does the average
cow drink?
Answers
getting a sum of either 7, 10, or 11 on a roll of two dice
Answers
Write an expression, using an exponent that is equivalent to 6 x 6 x 6 x 6 x 6.
Answers
Answer:
6^5
Step-by-step explanation:
put the 5 and make it tiny on top of the 6
Answer:
6^5 to give u the same thing as 6×6×6×6×6×6
Which of the following represents the sum 4+8? Assume that red tiles represent negative numbers and blue tiles
represent positive numbers.
A.four blue tiles plus eight blue tless
B.four blue files plus eight red tiles
C.four red tiles plus eight red tiles
D.four red tiles plus eight blue tiles
Answers
Answer:
A.
Step-by-step explanation:
Both are positive values, so it's just four blue plus eight blue.
Does this procedure describe a completely randomized design for this experiment?
Answers
Answer:
Yes
Step-by-step explanation:
It’s in the picture please and thank you ^*
Answers
Answer:
38 degrees
Step-by-step explanation:
3x+2x+15+95+60=360
the sum of the angles of a quadrileteral=360
5x+170=360
5x=360-170
5x=190
x=190/5
x=38 degrees
α + 4/5 = 3
Solve for a to make the proportion true
Answers
a=11/5
i think is right
The 12 students in the Environmental Club represent 20% of the students in the seventh grade. How many students are in the seventh grade?
Answers
The students that are in the seventh grade is 60.
How to calculate the number of students?A percentage is a value or ratio that may be stated as a fraction of 100. If we need to calculate a percentage of a number, we should divide it's entirety and then multiply it by 100. The percentage therefore refers to a component per hundred. Per 100 is what the word percent means. It is represented by %.
Let the students that are in the seventh grade be x.
Since 12 students in the Environmental Club represent 20% of the students in the seventh grade. This will be:
20% × x = 12
0.2x = 12
Divide
x = 12 / 0.2
x = 60
Therefore, there are 60 students.
Learn more about percentages on
brainly.com/question/24877689
#SPJ1
3 Prove that
cos130°+cos 110+ cos10=0
Answers
We know, cos A + cos B = 2cos(C+D)/2 × cos(C - D)/2
So,
cos 130 + cos 110 + cos 10
cos 130 + 2cos (110+10)/2 × cos( 110-10)/2
cos 130 + 2cos 60 × cos 50
cos ( 180 - 50 ) + 2cos60 cos 50
We know, cos ( 180 - A ) = -cos A
2cos 60 cos 50 - cos 50
Also, cos 60 = 0.5
2×0.5 cos 50 - cos50
cos 50 - cos 50
0 = RHS.
Hence proved
Please help me with this question
Answers
Answer:
5 x 3/4 < 5
2 x 4/3 > 2
6 x 5/5 = 6
4/7 x 1/8 < 4/7
2/5 x 7/7 = 2/5
1/3 x 6/4 > 1/3
(1/2(7x3))^3= plz help
Answers
Answer:
1/2 X 7 X 3 X 3 = 31.5
Step-by-step explanation:
If degree measures of the angles of A ABC are represented by 3x, x+10,
and 6x, then A ABC must be...
Answers
Answer:
30degrees
Step-by-step explanation:
The sum of angles of a triangle is 180
<A + <B + <C = 180
Substitute the given values
3x + x+10 + 6x = 180
10x + 10 = 180
10x = 180-10
10x = 170
x = 170/10
x = 17
Get <A:
<A = 3x
<A = 3(10)
<A = 30degrees
Hence the measure of angle A is 30degrees
After years of maintaining a steady population of 32,000, the population of a town begins to grow exponentially. After 1 year and an increase of 8% per year, the population is 34,560. Which equation can be used to predict, y, the number of people living in the town after x years? (Round population values to the nearest whole number.)
y = 32,000(1.08)x
y = 32,000(0.08)x
y = 34,560(1.08)x
y = 34,560(0.08)x
Answers
Answer:
I THINK UTS A y = 32,000(1.08)x
Step-by-step explanation:
Answer:
TS A y = 32,000(1.08)x
Step-by-step explanation:
Which algebraic expression is not equivalent to 13x + 10? A 10(x + 1) + 3x B. 4x + 3 + 8x + 7 C. 13 + 2x + 3x – 3 + 8x D. 20x-2 - 7x + 12
Answers
Answer:
B is the answer
Try all and see for yourself
