Answer:
Hello!
Welcome to Brainly :D
My name is Euijin and the Answer is:
1. 1
2. -3
Or you can use it Backwards.
Step-by-step explanation:
If
x
=
4
and
y
=
7
, evaluate the following expression:
20
+
2
(
3
y
−
4
x
)
Answer:
30
Step-by-step explanation:
20+2((3)(7)−(4)(4))
=20+2(21−(4)(4))
=20+2(21−16)
=20+(2)(5)
=20+10
=30
On a coordinate plane, 3 lines are shown. Line a has points (negative 3, 3) and (3, negative 3). Line b has points (negative 3, negative 2) and (2, 3). Line c is parallel to line b. If line b is perpendicular to line a, and line c is perpendicular to line a, what is the slope of line c? mc =
Answer:
The slope of line c is 1
Step-by-step explanation:
The given information are;
The coordinates of the points on the line a are; (-3, 3) and (3, -3)
The coordinates of the points on the line b are; (-3, -2) and (2, 3)
Line c ║ line b
Line b ⊥ line a
Line c ⊥ line a
Therefore, we have
The slope, [tex]m_c[/tex] of line c is equal to the slope, [tex]m_b[/tex], of line b Definition of parallel lines (The slopes of parallel lines are equal)
[tex]m_c[/tex] = [tex]m_b[/tex]
Therefore, the slope, m, of the line b is given as follows;
[tex]Slope, \, m =\dfrac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]
Where, for line b, (x₁, y₁) = (-3, -2) and (x₂, y₂) = (2, 3), we have;
[tex]Slope, \, m_b =\dfrac{3-(-2)}{2-(-3)} = \dfrac{3 + 2}{2 + 3} = 1[/tex]
From [tex]m_c[/tex] = [tex]m_b[/tex] = 1, the slope of line c = 1.
Answer:
its 1
Step-by-step explanation:
took quiz
Calculate the number of roots of
2sin^3x-5sin^2x+2sinx=0
in the interval 0<=x<=pi
Answer:
Which points are collinear?
G, A, and T
G, E, and T
A, T, and E
G, A, and E
Step-by-step explanation:
If y=35 when x=140, what is the value of y when x=70?
Answer:
140/70= 2
35/2= y when x=70
Step-by-step explanation:
Sam, Joe and Nancy are all diving. They each have the following pressure rates in their aluminum cylinders tank:
Sam has 3000.805, Joe has 3000.895 and Nancy has 3000.804. Who has the highest amount of pressure in their tank? Who has the least amount of pressure?
I've asked this question 3 times please answer
Answer:
Nancy High
Joe Low
Question 4 A coach plans to order new volleyballs and soccer balls. • The cost of each volleyball is $20. • The cost of each soccer ball is $25. • The coach plans to order at least 50 volleyballs and soccer balls in • The coach can spend a maximum of $1,100. Which graph represents x, the number of volleyballs, and y, the number of soccer balls that the coach can order?
Answer:
24 in all
Step-by-step explanation:
1,100/45=24
25+20=45
The number of volleyballs are 30, and the number of soccer balls are 20 that the coach can order.
What is an expression?
Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
The cost of each volleyball is $20.
And, The cost of each soccer ball is $25.
The coach plans to order at least 50 volleyballs and soccer balls and he can spend a maximum of $1,100.
Now,
Let number of volleyballs = x
Number of soccer balls = y
So, We can formulate;
⇒ x + y = 50
⇒ $20x + $25y = $1100
Solve both equation as;
From equation (i);
⇒ 20x + 20y = 1000
Subtract above equation from (ii), we get;
⇒ 25y - 20y = 1100 - 1000
⇒ 5y = 100
⇒ y = 20
And, x + y = 50
x + 20 = 50
x = 30
Thus, The number of volleyballs are 30, and the number of soccer balls are 20 that the coach can order.
Learn more about the mathematical expression visit:
brainly.com/question/1859113
#SPJ2
Janelle graphed a line through (−6, 5) that had a slope of −79. What is the y-coordinate of a point on the line that has an x-coordinate of 3?
Answer:
The value of the y-coordinate is -706
Step-by-step explanation:
The equation of a straight line is;
y = mx + c
where m is slope and c is t-intercept
Given the slope, we can write the equation as;
y = -79x + c
we need to get c
Just put in the x and y values of the given point
X = -6 and y = 5
5 = -79(-6) + c
5 = 474 + c
c = 5-474 = -469
So the complete equation of the line would
be ;
y = -79x - 469
To get the y-coordinate of the point, just insert the x value into the equation;
y = -79(3) - 469
y = -237 - 469 = -706
Plzzz hellllppppp I’m failing this class!!!!
Step-by-step explanation:
So now a full triangle is 180°
Since the full triangle is 180°..you have to minus it with 68°and 70°.
[tex]180 - 68 - 70 = 42[/tex]
This is what you will get
Now write the value (42). Now you have the degree for a whole triangle
Since they are asking you to find the outside angle, you have to minus 42 with 180. This because that's a half circle
Full circle=360
Half circle =180
[tex]180 - 42 = 138[/tex]
Hope this is correct and helpful
HAVE A GOOD DAY!
Which of the following describes a situation in which the total distance a basketball player travels is 0 meter from his starting point?
Group of answer choices
A.The player runs 9 meters forward and then runs 0 meters in the opposite direction.
B.The player runs 5 meters forward and then runs 6 meters in the opposite direction.
C.The player runs 6 meters forward and then runs 5 meters in the opposite direction.
D.The player runs 4 meters forward and then runs 4 meters in the opposite direction
Answer:
D
Step-by-step explanation:
4-4=0
Answer:
the answer is D.The player runs 4 meters forward and then runs 4 meters in the opposite direction. I did this test and because
positive 4 and negative 4 is the sum of 0
hope this helps you ^.^
Write the equation of the line graphed below in Point-Slope form. Use the point labeled on the graph. State the slope and point.
Answer:
The Point-Slope form is y - 1 = 4 ( x + 1 )
Step-by-step explanation:
First you have to find the slope which is 4. To get that you get 2 points and do rise/run. I chose the 2 points (-2,-3) and (-1,1).
Since the formula for point-slope form is:
y - y1 = m ( x - x1 )
You simply fill in the blanks with the given point which is ( -1 , 1 ).
Therefore, the point-slope form is:
y - 1 = 4 ( x + 1)
Solve the equation for y.
5y. – x= 10
Answer:
y=2+x/5
Step-by-step explanation:
Answer:
y=2+[tex]\frac{x}{5}[/tex]
Step-by-step explanation:
subtract x from both sides to get
5y=10-x
divide both sides by five to get
y=2+[tex]\frac{x}{5}[/tex]
Sarah Wilson was the top scorer in a women's professional basketball league for the 2006 regular season, with a total of 818 points. The number of two-point field goals that Sarah made was 69 less than double the number of three-point field goals she made. The number of free throws (each worth one point) she made was 28 less than the number of two-point field goals she made. Find how many free throws, two-point field goals, and three-point field goals Sarah Wilson made during the 2006 regular season
Answer:
Kindly check explanation
Step-by-step explanation:
Given that:
Total point = 818
Let number of 3 point goals = p
Number of 2 point goals = 2p - 69
Number of 1 point = 2p - 69 - 28 = 2p- 97
3p + 2(2p - 69) + 1(2p - 97) = 818
3p + 4p - 138 + 2p - 97 = 818
9p - 235 = 818
9p = 818 + 235
9p = 1053
p = 117
Hence ;
number of 3 point goals = 117
Number of 2 point goals = 2(117) - 69 = 165
Number of 1 point = 2(117) - 97 = 137
Subtract.
(2x4−x2+5x−2)−(−x4+3x3+2x2−1)
The result from subtracting (-x⁴ + 3x³ + 2x² - 1) from (2x⁴ - x² + 5x - 2) is the algebra expression 3x⁴ - 3x³ - x³ + 5x - 3.
How to solve the expressionWe first open the bracket;
(2x⁴ - x² + 5x - 2) - (-x⁴ + 3x³ + 2x² - 1) = 2x⁴ - x² + 5x - 2 + x⁴ - 3x³ - 2x² - 1
then we collect like terms;
(2x⁴ - x² + 5x - 2) - (-x⁴ + 3x³ + 2x² - 1) = 2x⁴ + x⁴ - 3x³ - x² - 2x² + 5x - 2 - 1
(2x⁴ - x² + 5x - 2) - (-x⁴ + 3x³ + 2x² - 1) = 3x⁴ - 3x³ - 3x² + 5x - 3
Therefore, the solution for the subtraction of the expression (-x⁴ + 3x³ + 2x² - 1) from (2x⁴ - x² + 5x - 2) is the algebraic expression 3x⁴ - 3x³ - 3x² + 5x - 3.
Learn more about algebra here: https://brainly.com/question/4344214
#SPJ1
What is the value of Z WILL MARK BRAINLIEST
[tex]\angle z = 92[/tex]
Answer:
z = 92
Step-by-step explanation:
z = it's opposite angle
You need to figure out another angle in the triangle containing the 42-degree angle.
There are multiple ways to get there, but going from the 95 degree angle is how I will explain.
95 = 42 + 53
So, think the two small triangles are one big triangle.
95 + 39 = 134
180 - 134 = 46
Now back to the smaller one-
42 + 46 = 88
180 - 88 = 92
The opposite angle to z is 92, making z = 92.
PLEASE HELP
What would be my first step?
3 + 4 x 6 - 4 =
addition
subtraction
division
multiplication
Can someone please help me with these questions it’s due today I appreciate your help ❤️
The solution to -2(1-4x)=3x+8 is____?
Answer:
x = 2
Step-by-step explanation:
Step 1:
Simplify both sides of the equation.
Step 2:
Subtract 3x from both sides.
Step 3:
Add 2 to both sides.
Step 4:
Divide both sides by 5.
Can you please help me with the question please
Answer:
34.1 minutes
Step-by-step explanation:
distance= 2miles,time=11 minutes
pace=velocity
velocity= distance/time
V= (2/11) miles/minutes
since the pace is maintained. then,
time taken to run 6.2 miles would be
time=distance/velocity
T= 6.2miles/(2/11)miles/minutes
T= [(6.2×11)/2]minutes
T= 34.1 minutes.
Find the distance (-2,6) and (4,-7) and it’s not 14 PLEASE
How should this model be completed to represent 605 ÷ 18? Please give best explanation.
Answer: 33 R 11 or 33 11/18
Step-by-step explanation:
A dice is rolled 50 times.
Answer:
(a) 9/50=0.18
(b) 12/3000=4×10^-3
Sally is baking a cake. The recipe calls for 9 cups of flour. She already put in 3 cups. How many more cups does she need to add ?
Answer:
6 cups
Step-by-step explanation:
Answer:
6 cups.
Step-by-step explanation:
9-3=6
she already added 3
there's 9 total
6 more to add
solving for x in geometry with triangle
The value of x in the triangle is -5
How to solve for x?The sum of angles in a triangle is 180 degrees.
So, we have:
x + 35 + 60 + 90 = 180
Evaluate the sum
x + 185 = 180
Subtract 185 from both sides
x = -5
Hence, the value of x in the triangle is -5
Read more about triangles at:
https://brainly.com/question/1675117
#SPJ1
The first thing I did was to be a part of 55
Answer:
55? What does that mean? Math 55?
Step-by-step explanation:
Answer: I’m sorry, but what is this? What’s the question?
Step-by-step explanation: Thank You! :)
Given the function. f(x)=x^2+5x-8
Find f (2).
Answer:
f(2)=6
Step-by-step explanation:
f(2)=2^2+5(2)-8
f(2)=4+10-8
f(2)=14-8
f(2)=6
GIVE YOU LOTS OF POINT, ANSWER ASAP!
Answer:
c
Step-by-step explanation:
Find the length of PQ if P(2, 7) and Q(-4, 2)
Answer:
.
Step-by-step explanation:
.
Answer: √29 or 5.38
Step-by-step explanation:
Please help I don't know this
What is 2+2
A: Fish
B: 2
C: 4
D:2+2
Please help I will give brainliest
Answer: C
Step-by-step explanation: 2+2 which is 4
So here is the example for you:))
You have 2 apples and I gave you 2 more apples add all them together how many TOTAL apples you have now?
If 1 plus (+) 1 is 2(two) then 2 plus(+) 2 Is 4
Hope you get it have a good time :))
Solve the equation. -1/2(4x-10)=5-2x
Answer:
Infinite solutions
Step-by-step explanation:
First distribute -1/2 to 4x and -10 and get -2x+5
Then plug it into the equation which would be -2x + 5 = 5 - 2x
And that would be 0=0 because they are the exact same but in a different order.
And 0=0 is true so it is infinite.
Write the equation for the line that passes through the point (0, -4) and has the same slope as y=2over3 X + 1over2
y=------x------
Answer:
y=2/3x-4
Step-by-step explanation:
y-b=m(x-a)
y--4=2/3(x-0)
y+4=2/3(x-0)
3y+12=2(x-0)
3y+12=2x-0
3y=2x-12
y=2/3x-4