Answers
Step-by-step explanation:
First. plug in values of x and try to form a curve. Since this a quadratic, we will get a parabola( a U shaped graph).
Plug in values from -3 to 4.
for x.
[tex]f( - 3) = 2( - 3) {}^{2} - 3( - 3) - 5 = 22[/tex]
[tex]f( - 2) = 2( - 2) {}^{2} - 3( - 2) - 5 = 9[/tex]
[tex]f( - 1) = 2 + 3 - 5 = 0[/tex]
Keep going until you get until you get to 4 for x.
The graph above should be your curve.
1. The roots of a quadratic are the x values when y=0, here it is 2.5 and -1.
2. Since the leading degree coeffecient is positive, we have a minimum value. It hard to tell the minimum here so let put this in vertex form, we have
[tex] 2{x}^{2} - 3x - 5[/tex]
First. we do
[tex] \frac{ - b}{2a} [/tex]
[tex] \frac{ - ( - 3)}{4} [/tex]
[tex] = \frac{3}{4} [/tex]
Now, we plug that in to find our y intercept of the minimum.
[tex]2( \frac{3}{4} ) {}^{2} - 3( \frac{3}{4} ) - 5 = \frac{18}{16} - \frac{9}{4} - 5 = - \frac{ 18}{16} - 5 = - \frac{98}{16} [/tex]
So we have
(3/4,-98/16).
or
(3/4,-6.125).
Related Questions
Please help, I would really appreciate it.
Answers
Answer:
B - (0,4)
Step-by-step explanation:
should be right :p
Consider the following variable: the number of people in a household. This variable is best categorized as a ______ variable.
Answers
Answer:
continuous numeric variable as there is an infinite number of real values within a given interval.
What is the equation of a line that is perpendicular to the line y = -3x + 2 and passes through the point (6,8)?
Answers
Answer:
y = 1/3x+6
Step-by-step explanation:
y = -3x+2 is in slope intercept form y = mx+b where m is the slope and b is the y intercept
The slope is -3
Perpendicular lines have slopes that are negative reciprocals
The slope of the perpendicular line is -1/-3 = 1/3
The equation of the new line is
y = 1/3x +b
Using the point that passes through the line ( 6,8) and substituting in for x and y
8 = 1/3(6) +b
8 = 2+b
8-2 =b
6 =b
The equation becomes
y = 1/3x+6
I need help! someone?
Answers
Answer:
B
Step-by-step explanation:
The +2 on the equation tells you that the y intercept (where the line crossed the y axis) is positive two so you know the answr must be either B or C. The negative at the beginning (in front of the slope) shows that we have a negative slope so the line will be going down, this rules out C since that line is going up. So the only answer left is B
At the park there is a pool shaped like a circle with diameter 24 yd. A ring-shaped path goes around the pool. Its width is 5 yd.
yd
24 yd
We are going to give a new layer of coating to the path. If one gallon of coating can cover 8 yd?, how many gallons of coating do we need? Note that coating
comes only by the gallon, so the number of gallons must be a whole number. (Use the value 3.14 for 1.)
Answers
Answer:106 gal
Step-by-step explanation:
step 1
Find the area of the path
we know that
The area of the path is given by the formula
where
r_2 is the radius of the pool plus the width of the path
r_1 is the radius of the pool
we have
---> the radius is half the diameter
substitute
assume
step 2
Find the gallons of coating needed
Divide the area of the path by 5
so
Round up
therefore
106 gal
Next question is here
Hope it improves you
Answers
Step-by-step explanation:
hope this helps you dear !
Mason is multiplying 3 x 5 x 0.1 x 0.1 what demical multiplication problem is he solving
Answers
Answer:
The answer is 0.15
Step-by-step explanation:
3 × 5 × (0.1) × (0.1)
15 × (0.01) = 0.15
Thus, The answer is 0.15
-TheUnknownScientist 72
Answer: 0.15
Step-by-step explanation:
(3 x 5) x (0.1 x 0.1)
=(15) x (0.01)
Thus, =0.15
Simplify the following
(5 - 6x-2x). (2.2 + 5x"
Answers
Answer:
6
Step-by-step explanation:
How many miles are there in 86.88 kilometers?
Answers
Answer:
53.935
Step-by-step explanation:
simple mathjdjdjdjdudid
1. In a classroom of the students are wearing blue shirts, and
$are wearing white shirts. There are 36 students in the cias.
How many students are wearing a shirt other than blue or
white?
Answers
Answer:
x
Step-by-step explanation:
It does not say the number of how many people are suing blue or white.
Which equation represents the line shown on the coordinate grid below
(0, -2)
2
4
- 4
-6
-8
-10
2
AY=
2
NON
B
2
y =
-2 +5
5
2
y
-2 + 5
2
DY
2
Answers
Answer:
D> y = (2/5)x - 2
Step-by-step explanation:
See attached
While shopping for clothes, Curtis spent $42 less than 3 times what Jaclyn spent. Curtis
spent $30. Write and solve an equation to find how much Jaclyn spent. Let x represent how much Jaclyn spent.
Answers
3x = 72
x= 24
jaclyn spent $24
A system of equations is shown below.
x
−
y
=
8
x
+
4
y
=
28
Which calculations show a correct procedure and solution for this system of equations?
Answers
Answer:
I believe the answer is x=24 y=16
Step-by-step explanation:
HELP I WILL GIVE BRAINLIEST
Answers
Answer:
New place point A is at is (2, -4).New place point B is at is (2, 3).New place Point C is at is (-5, 6).Step-by-step explanation:
Image below.
Brainliest please.
sqrt2+sqrt2/sqrt2-sqrt5 what is the simplest form of the radical expression
Answers
Answer:
- (4+2sqrt10)/3
Step-by-step explanation:
The only reason this problem needs to be worked on is that you can't have a radical on the bottom of a fraction(rational expression) . We'll use the CONJUGATE of the denominator(expression on the bottom) to get rid of the radicals.
The conjugate has the same terms as the bottom expression, but it has the OPPOSITE sign in between. Your question has
(root2 - root5). Then the CONJUGATE is
(root2 + root5).
We can't just randomly change the denominator of a number, so we will have to multiply the top by
(root2 + root5) also.
see image.
Multiplying these terms is very similar to multiplying binomials. Use distributive property or, if you know the method, FOIL. You may have learned a box method. This multplication is shown with the arrows in the attached image.
see image.
Find the value of angle x in the figure given below :
Need it now and i will mark you brainliest!
Answers
Answer:
20 degreese i belive but hey if you would can we ft instead of you marking me brainlyist
Step-by-step explanation:
Answer:
x = 40
Step-by-step explanation:
180 - 110 = 70 (The value in left corner at bottom)
70 + 50 = 120 (Combined values apart from x)
180 - 120 = x (Total triangle amount - combined amount to get x)
x = 40
Write and solve a proportion to complete the statement. Round your answer to the nearest hundredth.
90 lb - kg
Answers
Answer:
99
Step-by-step explanation:
If there are 30 boys and 20 girls in a room, full out all the possible ratios of boys to girls that could be made.
Answers
30:20
bro i need this these answers some help T_T
Answers
2)40
3)56
4)47
5)1
6)2
7)2
8)3
9)6
10)28
11)22
12)96
Don’t Know If You Still Need Em But Here Ya Go
Find the value of x. Thank you
Answers
as sine=opposite/hypotenuse
sin(60)=x/50cm
x=sin(60)x50
x=25squre root 3
Answer:
First option
Step-by-step explanation:
The "x" side represents a cathetum and is adjacent to the 30-degree angle and the side AC=50 represents hypotenuse
applies the cosine ratio
[tex]cos30=\frac{x}{50}[/tex]
cos 30° is a noticeable angle that can be expressed as [tex]\frac{\sqrt{3} }{2}[/tex]
Then:
[tex]x=50cos30=50(\frac{\sqrt{3} }{2} )=25\sqrt{3}[/tex]
Hope this helps
Find three ratios are equivalent to 4/9  8/36 or 8/27 or 16/27 or 16/36 or 12/27 or 12/36
Answers
Answer:
4/9 16/36 12\27 are all equivalent fraction
Answer:
16/36, 12/27 are equivalent to 4/9.
Step-by-step explanation:
Hope this helps!
Josef and Timothy play a game in which Josef picks an integer between 1 and 1000 inclusive and Timothy divides 1000 by that integer and states whether or not the quotient is an integer. How many integers could Josef pick such that Timothy's quotient is an integer
Answers
I need help to factor 8x - 14, please help.
Answers
Answer:
2(4x-7)
Step-by-step explanation:
Find quotient 10/6 / 1/ 24
Answers
Answer:
40
Step-by-step explanation:
Quotient means dividing so we must divide 10/6 by 1/24.
10/6 ÷ 1/24
10/6 * 24/1 = 40 <--- Multiply by the reciprocal in order to divide.
Final Answer: 40
I hope this helps! :)
in triangle ABC,BC=4cm,AD=7cm and BE=5cm . find the length of AC
Answers
BC = 4 CM
AD = 7CM
BE = 5CM
FIND
Length of AC
let's begin[tex] \frac{1}{2} \times side \: \times height \: \\ \frac{1}{2} \times ac \times bd = \frac{1}{2} bc \times ad \\ \frac{1}{2 } \times 5 = \frac{1}{2} \times 4 \times 7 \\ ac = \frac{4 \times 7}{5} \\ \\ = \frac{28}{5} \\ = 5.6cm \\ \\ so \: we \: required \: \\ length \: of \: ac = 5.6 \\ therefore \: we \: get \: answer[/tex]
6. About 12% of the United States population is left-handed.
Use this estimate to determine about how many left-handed
students there would be for each class of the given size.
a. 150 students
So, if 1
of the
popula
left-ha
whatr
the p
b. 200 students
right-
"both
c. 375 students
Answers
Answer:
For A the answer is 18. B is 24. And C is 45
Chris needs a 15% down payment to purchase a $206,000 home. How much money does Chris need for a down payment?
Answers
Answer:
the answer is 30'900
Step-by-step explanation:
15% of 20600 is 30'900, sorry if i am wrong but i believe thats correct.
Determine whether the equation below has a one solutions, no solutions, or an
infinite number of solutions. Afterwards, determine two values of x that support your
conclusion.
4x = -20
Answers
Answer:
x= -5
Step-by-step explanation:
divide both sides by 4
Write the number for eleven thousand one hundred five?
Answers
Answer:
11,105
Step-by-step explanation:
11,105
Answer:
11,105
Step-by-step explanation:
Eleven thousand = 11,000
One hundred = 100
Five = 5
Eleven thousand + one hundred + five = 11,105
On Monday, Gina ran 1 mile in 9.3 minutes. Her times for
running 1 mile on each of the next four days, relative to her time
2
on Monday, were – 1 minutes, -1.45 minutes, -1.8 minutes,
and – 18 minutes. List these relative times in order from least to
greatest.
Answers
Answer:
In order, they would be:
-4.45 min, -1.8 min, -(1 + 2/3) min, -1.375 min
Step-by-step explanation:
Enjoy :)
