Answers
Answer:
Step-by-step explanation:
Well they add up to a straight line which would be 180 degrees. That means 40, 6x+2 and 90 all add up to 180
40 + 90 + 6x + 2 = 180
Answer:
x = 8
Step-by-step explanation:
40 + 6x + 2 = 90° because these angles are complementary
6x = 90 - 42
6x = 48 divide both sides by 6
x = 8
Related Questions
Solve the system of equations:
y= -x + 9
y = - 3x + 8
X=
Answers
you would substitute y with 0 to find x then you would put 9 in for x to find y then you would go back to the first equation and put -19 in for y and then solve for x and get 27
Please Help!! And Explain how tooo! Brainliest for correct answer and best explanation!!
Answers
9514 1404 393
Answer:
x = 23
Step-by-step explanation:
Eliminate parentheses, separate the variables and the constants, divide by the coefficient of the variable.
7(x +4) = 9(x -2) . . . . . given
7x +28 = 9x -18 . . . . . eliminate parentheses using the distributive property
28 = 2x -18 . . . . . . . . . subtract 7x*
46 = 2x . . . . . . . . . . . . add 18
23 = x . . . . . . . . . . . . . divide by 2
The solution is x = 23.
Check
7(23+4) = 9(23-2) ⇒ 7·27 = 9·21 . . . true (=189)
__
* We choose to subtract 7x instead of 9x so that the resulting x-term has a positive coefficient.
_____
Additional comments
The properties of equality tell you that you can do anything you like to an equation, as long as you do the same thing to both sides of the equation. So, when we say "subtract 7x", we mean that value is subtracted from both sides of the equation. Subtracting a value, or adding its opposite, is a way to remove a term from a place in the equation where you don't want it.
Here, the smaller x-coefficient is on the left, so we choose that term to subtract. That leaves the remaining x-term on the right (with a positive coefficient). We don't want any constants there, so we add the opposite of that constant. (The opposite of -18 is 18, so that is what we add--to both sides.)
__
Sometimes you will be told differently. You will be told to "put that over there and change its sign" or "cross-multiply". These instructions are based on appearance. The fundamental, always-applicable rule is "do the same thing to both sides of the equation." With practice and understanding, you can begin to think in terms of these shortcut suggestions.
Give 1 other example where quadratics (parabolas) might
be used by a career?
Answers
Answer:
Agriculture
Step-by-step explanation:
Quadratic equations are also used in agriculture. One of these uses is in finding out the optimal arrangement of boundaries to produce the biggest fields and pens given the materials on hand. Area is the length of a surface multiplied by its width. This turns calculations involving areas into quadratic equations.
Reverse percentages question.
during a promotion a bag of sweets contain 20% extra free.There are 24 sweets in the bag during the promotion.
How many sweets are there normally?
Answers
Answer:
20
Step-by-step explanation:
24 ÷ 1.2 = 20
Please help! Due Friday
Answers
For (-3,6) left three up six
For (4,8) right four and up eight
Answer:
So for each point's numbers you have the x and the y. The first is the x, 2nd y in the parenthesis.
On the graph you start with the x axis, x in the middle is 0 to the left is the negative #'s and on the right: positive. Y axis is top positive, bottom negative! Now put the numbers on the axis' and then plot the points!
Hope this helps!!! :)
Need help??????!!!!!!!!!
Answers
Answer:
The answer for question 27 is a confusing one, but the one for question 28 is B! Hope this helps.
Step-by-step explanation:
is x = 5 a solution to the equation 19 - x = 14?
Answers
Answer:
The answer is B
Step-by-step explanation:
If you replace x with 5 then 19-5=14
Simplify the expression:
(1 + 3.2d)(7)
Answers
Answer:
7+22.4d
Step-by-step explanation:
(1 + 3.2d)(7)
7+7×3.2d
Simplify
7+22.4d
Hope this helped :) (please mark brainliest)
Answer:
22.4d+7
Step-by-step explanation:
Help me plz the real answer??!!
Answers
Answer:
(x-1)2 = -10
Step-by-step explanation:
Please anyone help!!
Answers
Answer:
the answers -49
Step-by-step explanation:
Evaluate: 792.6 ÷ 10-4
remember it is not 10-4. it is 10 to the -4 power
Answers
Answer:
792600
Step-by-step explanation:
For this question you can add four zeroes to the back of 792.6 andmove the decimal to get you the answer, hope this helps
It's also good to know that if the exponent was positive the answer would be 0.07926
SOLUTION STEPS
10 ^−4/792.6
Calculate 10 to the power of −4 and get
10000
1
.
10000
1
792.6
Divide 792.6 by
10000
1
by multiplying 792.6 by the reciprocal of
10000
1
.
792.6×10000
Multiply 792.6 and 10000 to get 7926000.
7926000
hopefully i helped
#2 Rewrite this expression in standard from. (y-2) = 3(x + 1) O 3x - y = -5 0 4x + y = 2 O x + y = 5 0-3x + y = 5 Next >
Answers
Answer:
Step-by-step explanation:
B
Answer:
It is -3x + y = 5
Step-by-step explanation:
So the answer is D
Please help asap !!!
Answers
Answer: 2.)non function 3.)non function 4.) function 5.)non function 6.) non function 7.)function 8.)non function PART B 1.)non function 2.)function 3.) function
Step-by-step explanation: a function is when the domain (x) all each have one answer like (-2.6)(7,4)(8,6) there can be repeating ranges (y) just not domains.
A non function is when one domain (x) has multiple ranges(y) like (7,2)(-9,6)(7,9) the 7 repeats twice giving it two ranges, which causes it to be non functional. hope that helped :))
What is the slope and equation of a line parallel to the x-axis passing through point (3, 7)?
Answers
Answer:
i not sure
Step-by-step explanation:
i need points
If the cost of a barrel of oil is $50.00, how much is the cost of one gallon of that oil? (One barrel of fuel oil contains 42 gallons.)
Answers
Answer:
$1.20
Step-by-step explanation:
You are planning a skating party at a rink that charges a basic fee of
$10.00 and $6.00 per person for catered parties. You don't want to spend
more than $52.00. Write and solve an inequality to find the number of
friends you can invite.
a. 6x + 10 < 52; x< 7
6. 6x + 10 > 52; <> 7
C. 6% + 10 > 52; 2 >7
d. 6x + 10 < 52; x < 7
Answers
Answer:
y = 6.50x + 6 or 71 = 6.50x + 6
10 people are the max you can invite
Step-by-step explanation:
We have the simple equation
y = 6.50x + 6
6.50x because it it per person
6 because it is a flat one time charge
We want the max to be 71 so that will be our y
71 = 6.50x + 6
We are now going to solve for x
65 = 6.5x
x = 10
Hope it helps! (:
can someone help me !
Answers
Answer:
B
Step-by-step explanation:
evaluate the piecewise function
Answers
Answer:
f(-7) = -6
f(10) = 9
Step-by-step explanation:
Because -7 is less than 0 you can use the top equation -7 + 1 to get 6
Because 10 is greater than 0 you can use the bottom equation 10 - 1 to get 9
Each blank on the coordinate plane has an address called the blank,blank
Answers
Answer:
adress, Like ( make up an adress)
Step-by-step expanation:
Answer:
Each point on the coordinate plane has an address called the ordered pair.
Step-by-step explanation:
I need help ASAP
Does this show a function please explain
Answers
Answer:
where is the dot, I Bileve it is no.
line y = x + 2 will be graft on the same coordinate plane to create a system of equations. what is the solution to the system of equations?
Answers
Answer:
Step-by-step explanation:
it’s going to be (4,-2)
What is the slope of the line y= -121x + 200 ??
Answers
Answer:
Slope = - 121
Step-by-step explanation:
Step 1:
y = mx + b Slope Intercept Form
Step 2:
m = Slope
Step 3:
y = - 121x + 200 Equation
Answer:
Slope = - 121
Hope This Helps :)
Answer:
-121X
Step-by-step explanation:
In an equation, x= the slope, and the number that comes after is the y intercept. So 200 would be where the line starts, and would have a negative slope of -121x
I hope this helps! :)
$ 53.70 divided by two different friends
Answers
Answer:
$26.85
Step-by-step explanation:
53.70÷2= 26.85
Your father gave you $8.82 to buy a present. This covered 7/9 of the cost. How much did the present
cost?
Answers
Answer:
$6.86
Step-by-step explanation:
Answer:
$11.34
Step-by-step explanation:
8.82 x 9/7 = 11.34
This means 8.82 is 7/9 of 11.34
The present costs 11.34 dollars
Evaluate the expression for p = 4, q = 2, and r = 1.
(−p)^2q^-2
Answers
Explanation:
(-p)^2q^-2
= (-4)^2 x 2^-2
= 16 x sqrt(2)
= 16sqrt(2)
NEED HELP ASAP, WILL GIVE BRAINLIEST.
A fly-fishing line is cast in a parabolic motion with an initial velocity of 30 meters per second at an angle of 60° to the horizontal and an initial height of 1 meter. The following parametric equations represent the path of the end of the line: x(t) = (30cos(60°))t and y(t) = -9.812 + (30sin(60°))t + 1 Graph the parametric equations to complete the statements.
1. To the nearest meter, the line travels a horizontal distance of_____
A. 2.6
B. 18
C. 20
D. 40
2. To the nearest tenth of a second, the end of the line reaches its maximum height after_____ seconds.
A. 1.3
B. 2.6
C. 18.2
D. 40.0
Answers
Answer:
1: 40
2: 1.3
Step-by-step explanation:
Did it on edg 2020
From 20 tons to 99 tons? Increase or decrease?
Answers
Answer:
increase in weight
Step-by-step explanation:
Answer:
Increase.
Step-by-step explanation:
20 is larger than 99. if one ton is 2000 pounds then 20 tons are 40,000 pounds. So 99 times 2000 is 198,000 pounds, which is larger than 40,000.
Summary: 20 tons (40,000 pounds) < 99 tons (198,000) pounds
How many groups of 1/2 are in 3 1/2
Answers
Answer:
7 Groups of 1/2 in 3 1/2
Quick first one gets brainliest
Answers
c is there answer Step-by-step explanation: 4 is greater than 3 and because the aligator eats the biggest number lol
PLEASE HELP ASAP!!!!!!!!!!
Answers
Answer: -15 if I am wrong then -35
Answer:
-15
Step-by-step explanation:
-15 .hwushshshsjwo
