Which of the following graphs shows a proportional relationship?
PLEASEEEEE HELP MEE
Answer:
the second one
Step-by-step explanation:
Answer:
the second one i think sorry if im wrong
Step-by-step explanation:
express y = -2x² - 4x + 7 in the form of perfect square and find the maximum points.
Answer:
Maximum: (-1,9)
Step-by-step explanation:
Vertex form of the quadratic function
If the graph of the quadratic function has a vertex at the point (h,k), then the function can be written as:
[tex]y=a(x-h)^2+k[/tex]
Where a is the leading coefficient.
We are given the following function:
[tex]y =-2x^2-4x+7[/tex]
To find the vertex, we need to complete squares. First, factor -2 on the first two terms:
[tex]y =-2(x^2+2x)+7[/tex]
The expression in parentheses must be completed to represent the square of a binomial. Adding 1 and subtracting 1:
[tex]y =-2(x^2+2x+1- 1)+7[/tex]
Taking out the -1:
[tex]y =-2(x^2+2x+1)+2+7[/tex]
Factoring the trinomial and operating:
[tex]y =-2(x+1)^2+9[/tex]
Comparing with the vertex form we have
Vertex (-1,9)
Leading coefficient: -2
Since the leading coefficient is negative, the function has a maximum value at its vertex, i.e.
Maximum: (-1,9)
PLEASE HELP FAST WILL MARK AS BRAINLIEST IF GIVEN GOOD ANSWER
9514 1404 393
Answer:
x = 10
Step-by-step explanation:
The exterior angle is equal to the sum of the remote interior angles.
(12x +12)° = 79° +(5x+3)°
7x = 70 . . . . . . . . divide by °; subtract 12+5x; collect terms
x = 10 . . . . . . . . divide by 7
What theorem can be used to prove the triangles below are congruent?
Answer:
c)sas
Step-by-step explanation:
Plz help ASAP need problem quickly thx
Answer:
A
Step-by-step explanation:
2(3) + (3) = 9
3(3) - 2(3) = 3
HELP ASAP AGAIN PLSS!!!!! MAKRING BRAINLIST!! MATH!
Answer:
200 I think I'm not entirely sure
Answer:
200
Step-by-step explanation:
if one inch=40 miles, and we want to find 5 inches, we can solve 5*40, which equals 200
Line segment AB was dilated to create line segment A'B' using the dilation rule DQ,0.15. Point Q is the center of dilation. Line segment A B is dilated to create smaller line segment A prime B prime. The length of Q A prime is 2.4. The length of A prime A is x. What is x, the distance between points A and A'? 2.4 units 4.8 units 13.6 units 14.4 units
Answer:13.6 units
Step-by-step explanation: its on edge
Answer:
13.6 or b
Step-by-step explanation:
Five pounds of bananas cost $2.95. At the same rate, how much do 3 pounds of bananas cost?
Group of answer choices
C. $1.77
A. $0.59
B. $ 0/98
D. $5.08
Help!!!
√−100 = __ + __ i
Answer:
-10i
10i
Step-by-step explanation:
Answer:
Step-by-step explanation:
sqrt(-100) = sqrt(100) * sqrt(-1)
sqrt(-1) = i
Sqrt(100) = 10
sqrt(-100) = 10i
Maria is saving for a Nintendo Switch. A switch costs $250. She has $95 saved. Maria’s job pays her $8.50 and hour.
How many hours does Maria need to work to have enough money for the switch?
Answer:
19 days
Step-by-step explanation:
I can't believe she's getting a discount! A Nintendo Switch usually costs $299.99 MSRP! She's getting basically $50 off!
No clue how to do this one, pls help
"A base of the right solid has an area of 45 ft^2. The height of the right solid it 10 ft. Find the volume of the right solid."
Answer:
I dont know but example
Step-by-step explanation:
A cubic foot is a cube with a side length of one foot.
We know that, 1 foot = 12 inches.
So, 1 cubic foot is a cube with side length 12 inches.
You can use the formula for the volume of a prism, V=bwh , to convert cubic units.
Since 1 foot = 12 inches, replace b , w , and h with 12 .
V=(12)(12)(12) =1,728
So, 1 cubic foot is equal to 1,728 cubic inches.
Answer: 450^3
Step-by-step explanation: To find the volume of something multiply the base and height. So just do 45x10. And don't forget to put ^3 at the end of your answer because you're finding volume.
solve for x
pls show work
Answer:
NO, I AINT SHOWIN NO WORK-
DO YOUR OWN WORK!!!!! GOSH!!!!
Step-by-step explanation:
Answer:
I am sorry i don't know it or i would give it to you
Step-by-step explanation:
How many solutions are in each box
Answer:
H=Hyperbola
L=line
C=circle
P=Parabola
First letter is top one:
HL=0, 1, 2
LP=0, 1, 2
LC=0, 1, 2
LH=0, 1, 2
PP=0, 1, 2, INFINTELY MANY
PC=0, 1, 2,
PH=0, 1, 2, 3
CP=0, 1, 2
CC= 0, 1, 2, INFINITELY MANY
CH=0, 1, 2, 3, 4
HP=0, 1, 2, 3
HC=0, 1, 2, 3, 4
HH=0, 1, 2, 3, 4, infinitely many
2(x + 1 ) - 3(x + 5) ≥ 0
pls help
Answer:
x≤−13
Step-by-step explanation:
isolate the variable by dividing each side by factors that don't contain the variable
What’s the given m ABC = 70 and m ADC = 46
Answer:
Step-by-step explanation:
Properties of a kite;
1). A kite has one pair of equal angles.
2). A kite has two pairs of adjacent sides.
3). Diagonals of a kite intersect at 90°.
4). Kite has at least one diagonal that bisects the opposite angles.
It's given in the question,
m∠ABC = 70° and m∠ADC = 46°
By the property number -4,
m∠2 = m∠3 = [tex]\frac{70}{2}[/tex] = 35°
m∠8 = m∠9 = [tex]\frac{46}{2}[/tex] = 23°
By the property number - 3,
m∠4 = 90°
By the property of interior angles in a triangle,
m∠3 + m∠4 + m∠5 = 180°
35° + 90° + m∠5 = 180°
125° + m∠5 = 180°
m∠5 = 55°
Similarly, m∠1 + m∠2 + 90° = 180°
m∠1 + 35° + 90° = 180°
m∠1 = 55°
Now m∠6 + 90° + m∠8 = 180°
m∠6 + 90° + 23° = 180°
m∠6 = 180 - 113 = 67°
Therefore, m∠6 = m∠7 = 67°
The values of all 9 angles shown were found using the property of a kite they are:
∠1=55°
∠2=35°
∠3=35°
∠4=90°
∠5=55°
∠6=67°
∠7=67°
∠8=23°
∠9=23°
What are the characteristics of a kite?One pair of equal angles, two pairs of equal adjacent sides, diagonals intersect at a right angle.
∠1=∠6 because AB=AC
∠6=∠7 because AD=DC
∠2=∠3 because triangle ABC is a combination of two congruent triangles.
∠8=∠9 because triangle DAC is a combination of two congruent triangles.
∠4=90°diagonals intersecting at the right angle.
It is given that
∠2+∠3 = 70°
Since they are equal so ∠2=∠3=35
∠8+∠9 = 46°
Since they are equal so ∠8=∠9=23°
∠5 = 180-∠3-∠4 = 180-35-90=55°
Similarly, ∠1 = 55°
∠6+∠7 = 180-∠8-∠9 = 180-46 = 134°
Since they are equal
∠6=∠7 = 67°
Therefore, all 9 angles were calculated using property of a kite.
∠1=55°
∠2=35°
∠3=35°
∠4=90°
∠5=55°
∠6=67°
∠7=67°
∠8=23°
∠9=23°
To get more about kites refer to:
https://brainly.com/question/16424656
3 Ingrid earns $200 each week in salary plus a 20% commission (bonus) on her total sales. If Ingrid wants to earn a total of $400 for the week, which of these equations could best represent this situation?
Answer:
400 = 200 + 0.20x
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
the amount she gets paid is 200 and that will never change. the 20% commision will always change depending on her sales so we can mark that as x. so far we have 200+20x. We want 400 dollars and that will be the total. That being said, it is 400=200+20x
This tells you that the unknown number is multiplied by 3.
Lisa reads 45 pages in 8 minutes. How many minutes would it take her to read 36 pages?
F. 5.25
G. 9
H. 6.4
J. 4.4
What is the length of the rectangle? yards
Answer:
The length of the rectangle is 17 yards and the width of the rectangle is 14 yards.
Explanation:
To find the perimeter of the rectangle, you had to add twice the length of the rectangle to twice the width of the rectangle since the shape of a rectangle is made up of two legs (each representing the rectangle's length) and two legs (each representing the rectangle's width.
The perimeter can be mathematically seen as p = 2l+2w, where p is the amount corresponding to the perimeter of the rectangle, l is the amount representing the length of the rectangle, and w is the quantity reflecting the width of the rectangle. This equation can be modified using the equation l = w+3, since it is given that the length is 3 yards longer than the width.
Therefore, the p = 2l+2w equation can be modified to solve for w using the given conditions and the equation defining l.
p = 2l+2w
p = 2(w+3)+2w [Substituting l = w+3]
p = 2w+6+2w
p = 4w+6
p-6 = 4w+6-6
p-6 = 4w
(p-6)/4 = 4w/4
w = (p-6)/4
w = (62-6)/4
w = 56/4
w = 14
Now the length of the rectangle can be determined using the equation l = w+3.
l = 14+3 = 17
Hope this helps Also Plz mark brainliest:)
What is the expanded form of this expression?: 4(1/4a + b – 6)
Answer:
Step-by-step explanation:
4(1/4a) + 4b - 24
1/a+4b-24
its just a line ;)
___________________
Answer:
I need points
Step-by-step explanation:
hhhccchhxjcjc
Question 1 (1 point)
A cheetah can run at its top speed for about 25 seconds. Complete the table to represent a
cheetah running at a constant speed. In the next question, explain or show your reasoning.
time (seconds) distance (meters) speed (meters per second)
4
120
25
270
Answer:
ok this was a good one so here
Step-by-step explanation:
time (seconds)
distance (meters)
speed (meters per second)
4 120 30
25 750 30
9 270 30
2. In the figure below, E is the midpoint of QT and QW - TR.
Which additional condition WOULD be sufficient to prove that AQWE = ATRE?
A)EQ=ER
B) ET=RT
C) don’t pick this one
D)
Answer:B
Step-by-step explanation:
HELP ASAP WILL MARK BRAINLEST!!!!!
Answer:
THE ANSWER IS 45 thank me later!!!
Step-by-step explanation:
Easy math, will give brainliest
Answer: Answer for question 7: 9x -7 is less than or equal to 38, X=5
Step-by-step explanation: Since a number next to a variable means multiplying, we can guess that 9 x 5=45, and 45-7 is less than or equal to 38. There is EZ math for ya
Answer:
7. x ≤ 5
8. x > 4
9. x < 5
10. x < -7
11. x < 45
12. x ≥ -10
13. k ≤ 3
14. x < 21
15. x ≥ -50
16. w ≥ 16
17. x ≥ -15
18. q > 4
Step-by-step explanation:
hey guys, can someone help me with this question? it’s due today by midnight
Answer:
4L + 8H = 512 (First answer)
You can take 92 low resolution pictures (second answer)
Step-by-step explanation:
Let L represent the number of low resolution pictures you take and H the number of high resolution pictures you can take.
You only have 512 megabytes.
Therefore, the number of megabytes the low resolution pictures you take plus the amount of megabytes the high rsolution you take in total should be 512
Therefore your equation is:
4L + 8H = 512 (First answer)
You took 18 high resolution pictures, so substitute 18 for H
4L+8(18) = 512
4L+144=512
subtract 144 on both sides
4L=368
divide by 4
L= 92
You can take 92 low resolution pictures
Hope this helps!
HELPP ASAP WILL MARK BRAINLEST!!!!
MMM HEY PLEASE HELP. IM LITERALLY ABOUT TO END MYSELF.
Answer:
so
Step-by-step explanation:
i would try C bc it has both 73 degrees and 83 degrees and i dont really know what SAS is besides it means side angle side??? if its right can i have brainlest
simplify ² + 3 + 2x² + 4 - x
i can't get it correct, I've been at this question for awhile.
Answer:
30
Step-by-step explanation:
A class of 25 students share a set of 100 markers.
Which statement is true?
For every 5 students, there is 1 marker.
For each student, there are 5 markers.
For every 4 students, there is 1 marker.
For each student, there are 4 markers.
Answer:
It should be D, For each there are 4 markers.
Step-by-step explanation:
Given: there are 100 markers and 25 students
So each student, there are 4 markers.
4 x 25 is 100
Therefore the answer is D.
