determine if the following ordered pair is a solution to the system of linear equations.
Answers
Related Questions
Kevin is doing an experiment where he flips a fair coin 20 times and analyzes the results. The coin has come up heads the first 19 trials. What is the conditional probability that the next flip will come up tails, given that the previous 19 flips were heads? Explain why your answer makes sense.
Answers
Answer:
it's still 50%
each flip is an independent probability. what happened the first 19 times is irrelevant, because it's still a 50-50 chance on any independent flip.
help please! ill mark brainliest if correct
Answers
Answer:
thrid one
Step-by-step explanation:
Answer:
If im correct
EG and FH
Which of the following numbers makes the inequality -2
A-5
B
-2
C 5
D 6
E
-3
6
Evie's test score is greater than 65, but no more than 90. An inequality that represen
this is
Answers
Answer:
opposite word of disperse
Please help
1. Rafael stands 55 feet from the tower and uses a clinometer to measure the angle of elevation to the
viewing platform as 37º. How far up the tower is the viewing platform?
Answers
Answer:
41.4feet
Step-by-step explanation:
Using the SOH CAH TOA identity
Given the following
Distance of Rafael from the tower = 55feet = Adjacent
Angle of elevation = 37degrees
Required
Height of the tower = Opposite
Since Tan theta = opp/adj
Tan 37 = x/55
x = 55tan37
x = 55(0.7536)
x = 41.4
Hence the tower is 41.4feet up the viewing platform
Can somebody help me. Will Mark brainliest.
Answers
Answer:
both are true
Step-by-step explanation:
have a great day
HELPP ME!! Ya'll brainly has answers for this question but they're all different answers!! I'm so unsure! One of the offices at the company was being repainted. Riley’s mother challenged him to figure out how many quarts of paint would be needed. The office is 16 ft long and 12 ft wide, and the height of each wall is 10 ft. The office floor, ceiling, and door are not being painted, and there are no windows in this office. The door opening measures 3 ft by 8 ft. One quart of paint covers 2 100 ft . How many quarts of paint are needed to paint the room, if only full quarts can be purchased? Show your work.
Answers
Answer:
3.8 quarts
Step-by-step explanation:
in a Recipe, 125 ml of milk is used for every half litre of water what is the ratio of milk to water
Answers
Answer:
1 : 4
Step-by-step explanation:
half litre = 500 ml
Milk : water = 125 : 500
= 125 ÷ 25 : 500÷25
= 5 : 20
= 1 : 4
Rafael got 3 boxed candies and 1 bag of chips for $6.99. His sister got 2 bags of chips and 1 boxed candy for $5.98. Find the cost for 1 of each of these items in dollars.
Answers
Answer:
Step-by-step explanation:
Let us represent
Boxed candles = x
Bag of chips = y
Rafael got 3 boxed candies and 1 bag of chips for $6.99.
3x + y = 6.99....Equation1
His sister got 2 bags of chips and 1 boxed candy for $5.98.
x + 2y = 5.98......Equation 2
Find the cost for 1 of each of these items in dollars.
has anyone taken the math kangaroo competition
and if so how should i prep theres not much material on it im currently in level 7-8
Answers
Which set of angle measures can be the angle measures of a triangle?
A 31°, 60°, 90°
B 18.4°, 32.6°, 129°
C 125°, 25°, 40°
D 10°, 120°, 40°
Answers
Answer:
B.
Step-by-step explanation:
it's the only one that all the angles add up to 180
Given the system of equations:
2x + 2y = 12
X-y= 2
What is x equal to?
8
4
2
1
-2
Answers
Answer:
x=4
y=2
Step-by-step explanation:
2x+2y=12
x−y=2
In order to solve by elimination, coefficients of one of the variables must be the same in both equations so that the variable will cancel out when one equation is subtracted from the other.
2x+2y=12,x−y=2
To make 2x and x equal, multiply all terms on each side of the first equation by 1 and all terms on each side of the second by 2.
2x+2y=12,2x+2(−1)y=2×2
Simplify.
2x+2y=12,2x−2y=4
Subtract 2x−2y=4 from 2x+2y=12 by subtracting like terms on each side of the equal sign.
2x−2x+2y+2y=12−4
Add 2x to −2x. Terms 2x and −2x cancel out, leaving an equation with only one variable that can be solved.
2y+2y=12−4
Add 2y to 2y.
4y=12−4
Add 12 to −4.
4y=8
Divide both sides by 4.
y=2
Substitute 2 for y in x−y=2. Because the resulting equation contains only one variable, you can solve for x directly.
x−2=2
Add 2 to both sides of the equation.
x=4
The system is now solved.
x=4,y=2
Correct choice is B) x=4.
answer is 4
because y=2 then you subsistute it in and then you find X
x-y=2 turns to x=y+2 then you subsistute that into x of the equation 2x+2y=12 which then is 2(y+2)+2y =12 and you should get y=2 then you grab the other equation x-2=2 and you should get x=4
slove this and get brainliest!!
please be sure of your answer!!!!!!!
Answers
Answer:
Option A
37°
Step-by-step explanation:
4x+ 2 = 150° [Vertically Opposite Angles]
=> 4x = 150 - 2
=> 4x = 148
[tex] = > x = \frac{148}{4} [/tex]
=> x = 37° (Ans)
Answer:
(4x+2)°=150°[by vertical opposite angles]
4x=150-2
4x=148
x=148/4
x=37
Please help me I don’t understand this stuff lol
A) 5/3
B) 5/4
C)10/3
D)4/3
Answers
Answer:
The answer is 4/3. I hope it's corect and this helps.
Step-by-step explanation:
Answer:
I dunno man
Step-by-step explanation:
In the figure below, m 2 2 = 76°. Find m Z1, m3, and m 24.
m 21 =
= 0
4
1
m 23 =
3
2.
m 24
Answers
Answer:
Chapter 2 Review WS. Period: Date: 1. A transversal intersects two parallel lines. ... 2. Find the measure of angles 1-4 and 6-8, using the following diagram. meisen ... 4. Find the measure of angles 1-7 given that lines m and n are parallel and t is transversal. ... Find the measure of angle 1. m24 = 123, mZ1 = 2x, mZ2 = x +42.
Step-by-step explanation:
A rectangular garden measuring 28 m by 45 m is bordered (and surrounded) by a fence. Inside, a walk that is 4 m wide goes all the way along the fence. Find the area of this walk. Be sure to include the correct unit in your answer.
Answers
Answer:
1219 square feet
Step-by-step explanation:
cause
triangle ABC is similar to triangle EHG , find the measure of angle EHG .
Answers
Answer:
[tex]\angle EHG = 80[/tex]
Step-by-step explanation:
Given
ABC ∼ EHG
See attachment
Required
Determine [tex]\angle EHG[/tex]
First, we calculate x in ABC
[tex]x + 2x + 60= 180[/tex]
[tex]3x + 60= 180[/tex]
[tex]3x = 120[/tex]
[tex]x = 40[/tex]
The corresponding angle to [tex]\angle EHG[/tex] is [tex]\angle ABC[/tex]
and
[tex]\angle ABC = 2x[/tex]
[tex]\angle ABC = 2 * 40[/tex]
[tex]\angle ABC = 80[/tex]
Hence:
[tex]\angle EHG = 80[/tex]
i need help asap! pls
Answers
The answer is b) because one of the line passes through this point
(101)² solve it using identities
Answers
Answer:
10201
Step-by-step explanation:
=(101)²
=(100+1)²
={100²+2(100)(1)+1²} [(a+b)²=a²+2ab+b²]
=10000+200+1
=10201
Solution :-
Given,
(101)^2We need to solve it using identities.
>> (100 + 1)^2
As we know that,
>> (a + b)^2 = a^2 + b^2 + 2ab
Here,
a = 100 b = 1Using the identity we gets,
>> (100)^2 + (1)^2 + 2(100)*(1)
>> 10000 + 1 + 200
>> 10000 + 201
>> 10201
A study gathers data on the outside temperature during the winter, in degrees Fahrenheit, and the amount of natural gas a household consumes, in cubic feet per day. Call the temperature x and gas consumption y. The house is heated with gas, so x helps explain y. The least-squares regression line is yhat = 1344 – 19x. 1. On a day when the temperature is 20F, the regression line predicts that gas used will be about
Answers
Answer:
The answer is "964 cubic-feet".
Step-by-step explanation:
Given regression equation:
[tex]\to Y = 1344 - 19X\\\\\to X= 20 \ F[/tex]
Putting the value of x into the above equation:
[tex]\to Y = 1344-19\times20\\\\[/tex]
[tex]= 1344-380\\\\= 964 \ cubic-feet[/tex]
PLS HELP ME FAST FREE 16 POINTS Rectangle PQRS is graphed on a coordinate plane with vertices P(–2, 1), Q(–2, 4), R(–4, 4), and S(–4, 1), as shown below.
Rectangle PQRS is reflected over the y–axis and then translated 2 units to the left. What are the coordinates of P'?
O(1, 0)
O(0, 1)
O(4, 1)
O(–4, –1)
Answers
Answer:
Pretty sure it's B!
Step-by-step explanation:
Over the Y axis- (2,1)
To the left two times= (0,1)
Hope this helped!
Answer:
(0,1)
Step-by-step explanation:
Since the problem is only asking about P', let's ignore the rest of the rectangle. P's coordinates are to be reflected across the y-axis, putting P' at (2,1). Move P' left by two units and your 'x' is 0, your 'y' is the same. So, (0,1)
Help please I will give you the brainliest
Answers
Answer:
Step-by-step explanation:
The answer is 570 because if you multiply 38 times 15 = 570 so it is 570. Thank you for answering to hope this helps you if you need more help contact me!
Answer:
$5.70
Step-by-step explanation:
Since it is 15% to make it a decimal you would move the decimal 2 places to the left to make it 0.15 and then multiply like this 38(.15) which is 5.7. So, shipping and handling is $5.70.
Find the area.
4 cm
6 cm
6 cm
square centimeters
Answers
Answer:
96cm
Step-by-step explanation:
4cm x 4cm x 6cm = 96scm
Pls help I’ll give brainliest
Answers
Answer:
A. 4 + 4.5 + 3.5 + 3m = 30
Explanation:
Josies's goal = 30 miles each week
She already ran 3 days of the week which leaves us 4 more days
7 - 3 = 4
She said she wanted to have a day off to rest
4 - 1 = 3
which brings us to 3 days left to finish her goal
3m (where 'm' is the miles she'll be running each day)
ORDER
ORDER OF OPERATIONS
21 divided by 3 +4
Answers
Answer:
11
Step-by-step explanation:
21/3+4
7+4
11
.......
Grades do Friday plz help I’ll do anything 1. Write an equation in standard form for the line shown
10
2. The equation 2x - 5y = 20, the table below, and the graph
below represent three different linear functions.
X
у
3
1
-2
4
-1
7
0
10
21
2
13.
16
3
19
1
which function represents the line with the greatest slope?
Explain your reasoning
3. Winto an equation in standard form for the line that is
represented by the data in the table
x
-1
2
3
7
5
3
1
4. Write an equation in standard form for the line with a stope
of that passes through the point (2)
5. Doomine the concept y barcopt, and slope of the line
described by 3x7 -21
Answers
Answer: You have to be packiing
Step-by-step explanation: 17 inches
Find the surface
area of 11mm 8mm 22mm
Answers
Answer: The chosen topic is not meant for use with this type of problem. Try the examples below.
Step-by-step explanation:
Divide the polynomials: x^2+2/x-1
Answers
Answer:
Solution:
x³ - x + 2 / x
...........
An accountant rents three notebook computers for temporary workers
to use during tax season. The total rental amount is $2,750. The
accountant makes monthly payments of $1,100.
How many payments does the accountant make?
How much interest does the accountant pay on the rental?
Answers
Answer:
possibly $1
Step-by-step explanation:
don’t know how to explain but I hope this helps
Answer:
4454
Step-by-step explanation:
What type of polygon is pictured here
Answers
Answer:
irregular heptagon
Step-by-step explanation:
I need help on this pls help meh
Answers
Answer:
the missing side T-F is 8. the missing side F-K is 3.
Step-by-step explanation:
hope I helped
Answer:
(SR*ST)+(FK*KL)=66cm²
Step-by-step explanation:
RL=ST+F K
9= 6+x
F K=3
T F=8
Area of this figure= (3*2)+(6*10)
=6+60=66 cm²