Answer:
x=3
y=7
Step-by-step explanation:
3x-4(x+4)=-19
3x-4x-16=-19
-x-16=-19
+16. +16
________
-x=-3
×-1 ×-1
______
x=3
y=3+4
y=7
Coach Burns charted the change in his runners’ 5K times from the first race of the year to the second race of the year. Which student improved the most by decreasing the time needed to run the race? PLEASE HELP IM ON A EXAM!!!
Answer:
student a
Step-by-step explanation:
i just took the exam
Which ordered pair is a solution of 3x-y=7?
A. (3,4)
B. (1,-4)
C. (5,-3)
D. (-1,-2)
Answer:
i think the answer is A or D i think
What is the solution to the equation?
13 3/4 + x = 7 1/4
A. X = 6 1/4
B. X = 6 1/2
C. X = 20
D. X = 21
(Edg. 2020)
Answer: B
Step-by-step explanation:
Answer:
X= -6.50
Step-by-step explanation:
Explanation is in the picture above
Please help me
Will mark as brilliant<3
Answer:
day on will be 5 day two will be 8 day 5 is 17 day 7 is 23
Step-by-step explanation:
Please help me with question 2 thank you !!
What value of ‘x’ would make lines n and m parallel? Please explain your answer!
Answer:
The value of x is 70°
Step-by-step explanation:
Lines and Angles
We need to find the value of x that makes lines n and m parallel.
Please refer to the image below where we have added new variables to the original drawing.
If n and m were parallel, then:
y and 30° are corresponding angles, having the same measure.
w and 80° are vertical angles, having the same measure.
If the two above conditions are met, then the triangle has the angles y, w, and x. Since the sum of all internal angles of a triangle is 180°:
x + y + w = 180°
Substituting:
x + 30° + 80° = 180°
Solving for x:
x = 180° - 30° - 80°
x = 70°
The value of x is 70°
Four trucks were used to make deliveries. The drivers recorded the number of miles driven and the amount of gasoline used.
Truck Mileage
Truck
Miles Driven
Gallons of Gas Used
A
45
3
B
24
2
C
14
1
D
36
4
Which truck drove the most miles per gallon of gas?
truck A
truck B
truck C
truck D
Answer:
The answer is D
Step-by-step explanation:
Trust Me
I just took the test...
Answer:
D
Step-by-step explanation:
The vertices of an ellipse are (0,-1) and (8,-1). The endpoints of the minor axis are (4,1) and (4,-3). Write the equation of the ellipse in general form
Answer:
x^2+4y^2-8x+8y+4=0
Step-by-step explanation:
The general form of the given ellipse is x² +4y² - 8x + 8y + 4 = 0.
What is an ellipse?An ellipse can be defined as a shape that looks like an oval circle.
The equation of an ellipse is
[tex]\dfrac{\left(x - h\right)^{2}}{a^{2}} + \dfrac{\left(y - k\right)^{2}}{b^{2}} = 1[/tex]
Where (h, k) is the center a and b are the lengths of the semi-major and the semi-minor axes.
The vertices of an ellipse are (0,-1) and (8,-1).
The endpoints of the minor axis are (4,1) and (4,-3).
The following equations take into account the different properties of an ellipse:
[tex]k = -1k=−1, h^{2} = a^{2}h 2 =a 2 , \left(h - 8\right)^{2} = a^{2}[/tex]
[tex]\begin{cases} b = 2 \\ k = -1 \\ h^{2} = a^{2} \\ \left(h - 8\right)^{2} = a^{2} \end{cases}[/tex]
We get that h = 4 k = -1, a = 4, and b = 2
The standard form of the given ellipse is
[tex]\dfrac{\left(x - 4\right)^{2}}{4^{2}} + \dfrac{\left(y + 1\right)^{2}}{2^{2}} = 1[/tex]
So the general form will be as : x² +4y² - 8x + 8y + 4 = 0.
Thus, the general form of the given ellipse is x² +4y² - 8x + 8y + 4 = 0.
Learn more about ellipses here:
brainly.com/question/9448628
#SPJ2
What is the equation of the line through (-6,-5) and (-4,-4) in slope -intercept form?
Answer:
the answer in the picture is correct
Which shows the algebraic representation of the phrase and its value when n = 4.2? "twenty-eight plus the product of five and a number" 28 minus 5 n; when n = 4.2 the value is 7 28 + 5 n; when n = 4.2 the value is 49 28 n minus 5; when n = 4.2 the value is 112.6 28 n + 5; when n = 4.2 the value is 122.6
Answer:
when n = 4.2 the value is 49
Step-by-step explanation:
Which shows the algebraic representation of the phrase and its value when n = 4.2?
"twenty-eight plus the product of five and a number"
Where the number = n
28 + 5n
n = 4.2
28 + 5(4.2)
28 + 21
= 49
Answer:
b.
Step-by-step explanation:
What is the perimeter of this polygon?
a
28 units
26 units
22 units
24 units
The sum of two numbers is 30. One number is 12 more than the other. Find these two numbers.
Answer:
21 and 9 are the numbers
Step-by-step explanation:
check by doing 21 minus 9, they also add into 30 together. if you haven't already figured it out.
The length of a rectangle is 6 cm more than twice its width. The sum of the length and width is 24 cm What are the dimensions of the rectangle?
Enter your answers in the box.
Answer:
width:6, length:18
Step-by-step explanation:
You can subsititue width with x.
The length would then be 2x+6.
The value of width and length combined is 24.
The equation would be (2x+6)+(x)=24
Simplify to 3x+6=24
Subtract 6 from both sides giving 3x=18
Simplify to x=6
There's the width. Now you can substitute to find the length.
(6x2)+6=18
I hope this is right.
eeeeeeeeeeeee i really need help-
Answer:
IT would be C none of the above.
Step-by-step explanation:
i just took this test and got a 100%. Also had the same exact question.
please help?
Find measure of angle C
Answer:
82
Step-by-step explanation:
Im pretty sure the answer is 82 as it's a striaght line and all you have to do is subtract 180-98
x² = 5.
Solve equation helpppp
Answer:
x= -[tex]\sqrt{5}[/tex]
x= +[tex]\sqrt{5}[/tex]
Step-by-step explanation:
Answer:I didnt know what you were trying to ask
Step-by-step explanation:
12.
ΥΥΥΥΥ
help please
Answer:
لطفا دانش مغز بزرگ من تست من قاشق تخم مرغ لاک پشت راه من را از طریق شما
Step-by-step explanation:
Answer:
I believe th e andwer to that is y5
Evaluate the given algebraic expression for x = 2 and y= 3.
-Зху
-6
-12
-18
-24
Answer:
-18
Step-by-step explanation:
-3xy,X=2 ,y=3
-3(2)(3)
-3(6)
=-18
Examine the diagram. It is not drawn to scale.
A triangle has angles A, B, 80 degrees. The exterior angle to angle A is 150 degrees.
Choose the statements that are true based on the diagram.
∠A is supplementary to the exterior angle.
∠A and the 80° angle are remote interior angles.
80° + m∠B + 150° = 360°.
∠B measures 70°.
∠A measures 40°.
Answer is the picture.
Answer:
the first one should be:
360,
60,
150,
90
Step-by-step explanation:
let me know if I'm wrong
Can anyone help me with this algebra problem ?
Answer:
The lines are parallel
Step-by-step explanation:
Answer:
first option
Step-by-step explanation:
The solution to a system of equations given graphically is at the point of intersection of the 2 lines.
If the lines are parallel then there is no point of intersection thus no solution.
What angles are vertical? Will mark brainliest
Answer:
7&6 and 8&5 I believe their on the opposite sides
What is the gcf of 4? this is worth 25 points I think
Answer:
The greatest common factor of 4 is 4
Step-by-step explanation:
1*4
2*2
4 is the biggest number that goes into 4
$600 at 5% for 2 years
Answer:
60
Step-by-step explanation:
600 times 5% = 30
30 times 2 = 60
Answer is 60
BRAINLIEST PLEASE
Which of the following equations represents the graph of a line parallel to the x-axis and passing through the
point (-2, 3)2
The coordinate grid is provided to make it easier for you to visualize the answer.
y 3x
x3y
Will give brainliest
What is the measure of angle P in the figure shown here?
Answer:
48
Step-by-step explanation:
66*2=132
180-132=48
15-a=20 what is the vaule of a?
Answer:
15a=20
a=20/15
a=4/3
ok
Answer:
a=-5
Step-by-step explanation:
15-a=20
Solve for a.
15-20=a
-5=a
1/2/2/3
Which question can be answered by this expression?
Answer:
1/2 / 2/3
(1*3) / (2*2)
3/4
Two-thirds of a half equals three-quarters
Answer:
no question
Step-by-step explanation:
it cant thats not an answet
Find the unit rate
24 roses in 4 vases
Solve for x given BD = 2x + 3 and AE = 6x + 4 . Assume B is the midpoint of overline AC and D is the midpoint of overline CE.
Answer: 1
From the second sentence, we have AB = BC = CD = DE = y. So AE = 4y and BD = 2y (you can see by drawing a diagram), and AE = 2BD. Substituting 2x + 3 for BD and 6x + 4 for AE in AE = 2BD, we have 6x + 4 = 2(2x + 3), 6x + 4 = 4x + 6. Solving, we see x = 1.
i hope this helped! :D
A class has 7 boys and 10 girls. Select all associated ratios for this class
7:3
7:10
10:7
17:5
7:17
10:17
3.7
10:3
Answer:
10:17 (girls to total students)
7:17 (boys to total students)
10:7 (girls to boys)
7:10 (boys to girls)
Step-by-step explanation: