y=2x+3 y=4x+7 solve by elimination
Answer:
[tex]\displaystyle [-2, -1][/tex]
Step-by-step explanation:
To use the Elimination method, you must get rid of one pair of variables, so that one side is set to zero. So, in this case, we must get rid of [tex]\displaystyle x,[/tex]therefore we will split the second equation in negative half :
[tex]\displaystyle \left \{ {{y = 2x + 3} \atop {-\frac{1}{2}[y = 4x + 7]}} \right. \\ \\ \\ \left \{ {{y = 2x + 3} \atop {-\frac{1}{2}y = -2x - 3\frac{1}{2}}} \right. \\ \\ \frac{1}{2}y = -\frac{1}{2}; -1 = y, -2 = x \\ \\ \\ \boxed{[-2, -1]}[/tex]
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On a scale drawing with a scale of 1 in to 25 feet, the height of a building is 8 inches on a
drawing. How tall is the actual building?
Answer:
200 feet
Step-by-step explanation:
What is the percent change of 7 increased to 21
Answer:
300%
Step-by-step explanation:
21/7=3 This means that 21 is 3 times more than 7.
WILL MARK BRAINLIEST!! FOR RIGHT ANSWERS
Answer:
1. -3
2. 0/4 or 0
3. -2/3
4. -4/-3
Step-by-step explanation:
Answer:
1. The slope is -3
2. The slope is -1
3. The slope is -1/2
4. The slope is 4/3
angle t = ___ degrees
construct the linear equation for the table
Mhanifa please help!!!!!! Please please
Answer:
#7
Ratio of corresponding sides (determined by opposite angles)
28/35 = 4/520/25 = 4/512.4/15.5 = 4/5The ratios are equal, the polygons are similar
# no number
Ratios:
5/15 = 1/37/21 = 1/3Yes, similar
# 8
The triangles are isosceles.
The ratios of bases and sides:
8/12 = 2/35/7.5 = 2/3B. ABC ~ MNO, SSS
A conical paper cup has dimensions as shown in the diagram. How much water can the cup hold when full?
94.2 cm divided by pi which is 3.14 equals to 30 evenly hoped this helped yall out
what two numbers multiply to 16 and add to -10?
Answer:
-2 and -8
Step-by-step explanation:
-2 x -8 = 16
-2 + -8 = -10
Answer:
1 and -16
Step by step:
1 x -16 = -16
1 + (-16) = -15
A high school drama club is selling tickets for a fundraiser event. Based on data from past events, the number of tickets sold can be modeled by a linear function Q(x) = −40x + 640, where x is the price, in dollars, of each ticket. The revenue R can be determined by multiplying the ticket price x by the number of tickets sold. Write a quadratic function R that correctly represents this model.
The quadratic function R that correctly represents the revenue model is given by R(x) = -40x² + 640x.
To find the quadratic function R that represents the revenue, we need to multiply the ticket price x by the number of tickets sold Q(x).
Given that the number of tickets sold Q(x) is given by the linear function Q(x) = -40x + 640, the revenue R can be calculated as:
R(x) = x * Q(x)
Substitute the expression for Q(x) into the revenue equation:
R(x) = x * (-40x + 640)
Now, we'll expand the expression:
R(x) = -40x² + 640x
Thus, the quadratic function R that correctly represents the revenue model is given by R(x) = -40x² + 640x.
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HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
Answer:
D. (3x² + 10w + 8) square inches
Step-by-step explanation:
the new width of the rectangle: w + 2
the new length of the rectangle: 3w + 4
the area: (w + 2)(3w + 4) = 3w² + 10w + 8
PLEASE HELP ILL MAKE BRAINLIEST
Answer:
56°
Step-by-step explanation:
180 = 40 + (2x) + (3x)
180 - 40 = 40 + 5x - 40
140/5 = 5x/5
x = 28
2(28)
= 56
Answer:
m∠A = 56°
Step-by-step explanation:
A triangle contains 180°. So
180 - 40 = 140
2x + 3x = 140
5x = 140
x = 28
Now, plug in the value for x.
2(28) = 56
Check your work.
40 + 56 + 84 = 180
I need help please!!
what is the highest fractions 2/4 5/6 3/2 1/9 4/5 8/2
Answer:
8/2
eight halves
Step-by-step explanation:
please mark this answer as brainliest
Car A went 60km in 5/6hours while car B when 54km in 2/3hours which car was faster? How many times Faster?
Answer:
Car B is 1.125 times faster than Car A.
Step-by-step explanation:
Speed = Distance / Time
Car A speed = Car A distance / Car A time
= 60 / (5/6) = 72km / hr
Car B speed = Car B distance / Car B time
= 54 / (2/3) = 81 km /hr
Car B is 81 / 72 ie = 1.125 times faster than Car A.
Jamya is making a rectangular blanket. The length of the blanket is 10inches greater than it's worth, W, in inches. Write the function, f(w), that describes the area, in square inches, of Jamya's blanket as a function of the width, w.
Answer: (w² + 10)inches²
Step-by-step explanation:
Since the width of the rectangular blanket is given as w and the length of the blanket is 10inches greater than it's width, therefore the length will be:
= 10 + w.
Therefore,
length = 10 + w
width = w
Area = length × width
Area = (10 + w) × w
Area = 10w + w²
Therefore, the area of the blanket will be (w² + 10)inches².
Newberry Street and Millersburg Avenue intersect. If Newberry Street is 5 meters wide and Millersburg Avenue is 12 meters wide, what is the distance between two opposite corners of the intersection?
Identify the measures of exterior angle below. Let x = 15
You choose two different movies on a list at random. Out of 10 movies on the list, 6 are action movies. The first movie you choose is an action movie. What is the probability that the second movie is also an action movie? Write your answer as a fraction in simplest form.
Answer:
5/9
Step-by-step explanation:
You have 10 movies in total. You take 1 out of 6 action movies. Now you have 5 action movies left, so that means the probability is 5/9. It's 5/9 because you chose 1 action movie out of 10 movies in total, so that means there are 9 movies in total left.
Hopes this helps and makes sense!
what is the definition of an expression
Answer:
the process of making known one's thoughts or feelings.
Step-by-step explanation:
Next time you ask a question please tell us if it's in a math term or something, I did it in the Ela/reading term.
the process of making known one's thoughts or feelings.
For example, if you make someone laugh their expression would be happy or suprised. Expression is just a way of seeing someones thoughts and feelings.
Hope this helps!
Have a great day!
- Hailey: )
Line p is parallel to line q. If the measure of angle 3 is 54 what is the measure of angle 6?... Help
Answer:
54°
Step-by-step explanation:
Because p and q are parallel, angle 3 equal to angle 6 as they are alternative angles.
So angle 6 is 54°.
Alternative
Line p and line q is parallel, so that the sum of a pair of interior angles (angle 3 and angle 5, angle 4 and angle 6) are equal to 180°.
So angle 4 + angle 6 = 180°.
Find angle 4 first:
180° - angle 3 = angle 4
180° - 54° = 126°
So the measure of angle 6 is
180° - 126° = 54°
Answer:
54 degrees
Step-by-step explanation:
Write an equation in slope-intercept form of the line that passes through the given points.
Why do we randomly select our samples?
Answer:
The purpose is to increase the generalizability of the results. By drawing a random sample from a larger population the goal is that the sample will be representative of the larger group and less likely to be subject to bias
Step-by-step explanation:
Answer:
Step-by-step explanation:
The purpose is to increase the generalizability of the results. By drawing a random sample from a larger population the goal is that the sample will be representative of the larger group and less likely to be subject to bias
A six sided die is rolled and a spinner with 5 equal spaces labeled A-E is spun. Find the P(rolling
a 1 and spinning A). Answer as simplified fraction.
Answer:
1 / 30
Step-by-step explanation:
For a six - sided die :
Sample space = (1, 2, 3, 4, 5, 6)
P(rolling a 1) = required outcome / sample space = 1/6
Sample space for spinner = (A, B, C, D, E)
P(spinning A ) = required outcome / sample space = 1/5
P(spinning A) = 1 / 5
P(rolling a 1 and spinning A) = P(rolling a 1) * P(spinning A) = 1/6 * 1/5 = 1 / 30
what is the next step in solving this equation
a. -5x-8=9
b. -13x=9
c. 11x-24=9
d. -21x-24=9
Solve the equation!bhurrypls
multiply sides by 4
k = 24
Answer:
k = 24
Step-by-step explanation:
k/4 = 6
k is being divided by 4, so multiply both sides by 4.
k/4 * 4 = 6 * 4
k = 24
Which of the following is equivalent to 16 ^3/4
Answer:
83/5
Step-by-step explanation:
83/5 would be equivalent to 16 3/4.
Answer:
8, or B on Edge.
Just took the quiz. Have a great day
Write the translation T‹1, -3› (x,y) as a composition of a horizontal translation and a vertical translation.
The translation T‹1, -3› (x, y) can be expressed as a composition of a horizontal translation and a vertical translation as (x + 1, y - 3).
To express the translation T‹1, -3› (x, y) as a composition of a horizontal translation and a vertical translation, we can break it down into two separate translations:
Horizontal translation: T‹1, 0› (x, y)
This translation shifts the coordinates of a point horizontally by 1 unit without affecting the vertical position. It can be expressed as (x + 1, y).
Vertical translation: T‹0, -3› (x + 1, y)
This translation shifts the coordinates of a point vertically by -3 units without affecting the horizontal position. It can be expressed as (x + 1, y - 3).
Combining these two translations, we get the composition:
T‹1, -3› (x, y) = T‹0, -3› (x + 1, y) = (x + 1, y - 3)
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HELP PLEASE I HAVE BEEN STUCK FOR HOURS THIS IS DUE- I'll mark brainliest. In parallelogram WXYZ, diagonal WY is drawn, M and N are points on WX and YZ respectively, and WY intersects MN at E. If m<Z= 60°, m<WYX= 84°, and m<NEY= 102°, find m<ZNM. l'll mark brainliest, I'm not sure how to do this problem and I'm stressed-
Answer:
m<ZNM = 138 degrees
Step-by-step explanation:
Answer:
138°Step-by-step explanation:
We can observe that:
∠ZWY ≅ ∠XYW as alternate interior anglesm∠ZWY = m∠XYW = 84°m∠WEN = 180° - m∠NEY = 180° - 102° = 78°, as straight angle is 180°m∠WZN = 60° - givenConsider sum of interior angles in quadrilateral WENZ:
m∠ZWY + m∠WEN + m∠WZN + m∠ZNM = 360°Substitute values and find the missing angle:
m∠ZNM = 360° - (84° + 78° + 60°) = 138°Which is equivalent to 437
O A 7
B. 12
OC 16
OD. 64
E. 81