Answer:
D
Step-by-step explanation:
Since there is a negative sign, the graph is a n shaped quadratic curve and hence, there can only be maximum point. Hence we can eliminate A and C.
For a curve in the completing the square form y = (x+a)²+b, the turning points are (-a,b). Hence in this case, turning point is at (-5, 3).
Hence the correct option is D
Answer:
D
Step-by-step explanation:
Ken buys two bunches of bananas. One bunch weighs 2 pounds 10 ounces. The other bunch weighs 1 pound 8 ounces. What is the total weight of Ken's bananas?
Answer:
4 pounds 2 oz
Step-by-step explanation:
16 oz = 1 pound so you add 10 and 8 to get 18-16 to get 4 pounds 2 oz
Which of the following is an equation of the line that passes through the point (-2,3) and is perpendicular to the graph of the equation y = 3x - 2?
Answer:
y = -1/3x + 7/3
Step-by-step explanation:
A line that is perpendicular to another line has the opposite reciprocal slope. That means we flip the slope of the original line and place a negative in front. Since the original slope is 3, the slope perpendicular is -1/3.
Now that we know the slope, and because they gave us a point on that line, we can create a line. Plug in the points and the slope into y = mx + b, to solve for b, the y-intercept.
3 = -1/3 (-2) + b
9/3 = 2/3 + b
7/3 = b
Now we can create a line in slope intercept form: y = -1/3x + 7/3
Here is Standard Form if needed: x + 3y = 7
Last year the 6th grade had 350 students. This year there are only 224 students. Which proportion could be used to calculate the percent decrease in students?
Answer:
36%
Step-by-step explanation:
50-224=
126 / 350=
.36 x 100=
36%
hope this helps :)
PLS HELP In the diagram below, ΔPQR ≅ ΔSTR. Complete the statement ∠P ≅ ___
A. ∠S
B. ∠PRQ
C. ∠T
D. ∠PQR
I feel like i’m wrong lol, Correct me please.
first step for solving this quadratic equation?
x2+2x-11=4
Answer:
subtract 4 from both sides
Step-by-step explanation:
Given
x² + 2x - 11 = 4
First step : subtract 4 from both sides
x² + 2x - 15 = 0 ← in standard form
Second step : factorise the quadratic
(x + 5)(x - 3) = 0 ← in factored form
Third step : equate each factor to zero and solve for x
x + 5 = 0 ⇒ x = - 5
x - 3 = 0 ⇒ x = 3
Fourth step : state the solutions
solutions are x = - 5, x = 3
I need help with this I don’t understand.
Answer:
the added degree of m1 and m2 equal m4
During which interval is the graph of the
function below only increasing?
HELLPPPPP!!!!!
Answer:
-2 < x < ఔ
Step-by-step explanation:
F’x = 3x^2 + 18x + 24
F’x = 3(x^2 +6x +8)
F’x = 3(x+4)(x+2)
One of the points of inflection will be at x = -2, and after -2 we know the equation will increase because it is positive
Insta: lankey.t
SOMEONE PLSSSS HELP!!!!!!!
Answer:
you can use desmos
Step-by-step explanation:
for example put x=88
and do the same with the rest
then put x+y+z and you will get your answer
consider the figure below
given
m || n
m∠2=3x+53
m∠7=7x-55
what is m∠8?
Answer:
m<8 = 46°
Step-by-step explanation:
m<2 = m7 (alternate exterior angles are congruent)
Substitute
3x + 53 = 7x - 55
Collect like terms
3x - 7x = -53 - 55
-4x = -108
Divide both sides by -4
-4x/-4 = -108/-4
x = 27
m<8 + m<7 = 180° (linear pair angles)
Substitute
m<8 + 7x - 55 = 180°
Plug in the value of x
m<8 + 7(27) - 55 = 180
m<8 + 189 - 55 = 180
m<8 + 134 = 180
Subtract 134 from each side
m<8 = 180 - 134
m<8 = 46°
Mary Lou is twice George’s age and Kate is one year younger than George. The sum total of their ages is 27. How old is each person?
Answer:
Mary Lou is 14
George is 7
Kate is 6
Step-by-step explanation:
let G = George's age
let 2G = Mary Lou's age
let G-1 = Kate's age
G + 2G + G-1 = 27
4G = 28
G = 7
2G = 14
G-1 = 6
Find the distance between the two points, and explain if you want to.
Step-by-step explanation:
the answer is in the above image
can you solve this? explian your reasoning. 2 6 3 9 6 18 15. What number comes next?
Answer:
The number of the sequence are 2, 3, 6, 15
The difference between 2 and 3 is 1 i.e. 30.
The difference between 3 and 6 is 3 i.e. 31.
The difference between 6 and 15 is 9 i.e. 32.
Let the next number in the given sequence be some natural number x.
Now, following the pattern, the difference between 15 and x has to be equal to 33=27.
i.e.
x−15=27⟹x=27+15=42
Hence
The next number in the sequence is 42.
Use the linear regression feature on a graphing calculator to find the correlation coefficient for the data. Round your answer to three decimal places.
x y
8.2 1
1.6 98
9.0 3
7.3 13
3.6 77
1.9 79
1.4 86
The correlation coefficient is about
_______
Question 2
This means that there is __________
between the variables.
need urgent help!!!
Answer:
the correlation coefficient is about 7.544. This means that there is a strong positive correlation btw the variables.
Step-by-step explanation:
I had this question on my last assignment and this was the correct answer. Hope this helps:)
what is the sum of (2x^2-8x) and (-x^2-2x) please help me
Answer:
the sum of (2x^2-8x) and (-x^2-2x )
=2x^2-x^2-8x-2x=x^2-10x
x ² - 10 x
Step-by-step explanation:
( 2 x ² - 8 x ) + ( - x² - 2 x )
2 x ² - 8 x - x ² - 2 x
2 x² - x ² - 8 x - 2 x ..(combine like terms)
x ² - 10 x
A resort hotel has 260 guests. On one day, 6 groups of 13 guests leave to shop and 2 groups of 6 guests go sightseeing. Evaluate 260−(6×13)−(2×6) to find the number of guests that are left at the hotel.
Answer:
170
Step-by-step explanation:
Which are vertical angles?
Answer:
The verticle angles are AB and ED
Step-by-step explanation:
-. If the expression (x-7) was placed in ax? +bx+c form, which of the following would be
the value of b?
(1) -7
(3) -14
(2) 7
(4) -49
PLEASE HELP
Answer:
1 :)
Step-by-step explanation:
Write the equation of the line MN, which is formed by the points M(-3,5) and N(2,0)
find the measure of angle 3
Answer:
angle 3 is 87 degree
Step-by-step explanation:
-7x+191=-5x+163(they are alternte interior angle)
-7x+5x=163-191
-2x=-28
x=-28/-2
x=14
substitute the value of x in -5x+163
-5*14+163
-70+163
93
Now,
angle 3 + (-5x+163) = 180 degree (they are cointerior angles)
angle 3 + 93 = 180
angle 3 = 180-93
angle 3 = 87 degree
Jamie deposits 400 into a savings account. The account has an interest rate of 5%, compounded quarterly. Right to function that gives you The amount of money in dollars, J(t) in t years after the initial deposit
Given:
Initial value = 400
Interest rate = 5% compounded quarterly.
To find:
The function that gives you the amount of money in dollars, J(t) in t years after the initial deposit.
Solution:
The formula for amount is:
[tex]A=P\left(1+\dfrac{r}{n}\right)^{nt}[/tex]
Where, P is principal, r is the rate of interest in decimals, n is the number of times interest compounded in an year and t is the number of years.
The interest rate is 5% compounded quarterly. So, r=0.05 and n=4.
Substituting [tex]P=400,\ r=0.05,\ n=4[/tex] in the above formula, we get
[tex]A=400\left(1+\dfrac{0.05}{4}\right)^{4t}[/tex]
[tex]A=400\left(1+0.0125\right)^{4t}[/tex]
[tex]A=400\left(1.0125\right)^{4t}[/tex]
The required function notation is:
[tex]J(t)=400\left(1.0125\right)^{4t}[/tex]
Therefore, the amount of money in dollars, J(t) in t years after the initial deposit is [tex]J(t)=400\left(1.0125\right)^{4t}[/tex].
(x+3)^2+7 in standard form
the difference of two supplementary angles is 64 degrees. find the measure of angles.
please help me
Answer:
122 and 58
Step-by-step explanation:
PLZZ HELP!!! I'll mark Brainliest! Thanks!!
Answer:
[tex] { \cot}^{2} \theta - { \cos }^{2} \theta = { \cot }^{2} \theta { \cos }^{2} \theta \\ divide \: by \: { \cos }^{2} \theta : \\ \frac{1}{ { \sin }^{2}\theta } - 1 = { \cot}^{2} \theta \\ 1 - { \sin }^{2} \theta = { \cos }^{2} \theta \\ identity = > \: { \boxed{ { \sin}^{2} \theta + { \cos}^{2} \theta = 1}}[/tex]
HURRY HELP.. whats the indicated measure
Answer:
< ABE = 109
Step-by-step explanation:
Angle Formed by Two Chords = 1/2(SUM of Intercepted Arcs)
< ABE = 1/2 ( 38+ 180)
< ABE = 1/2( 218)
< ABE = 109
( 4 x 5 )^2- 6 + 3 =
Answer:
397
Step-by-step explanation:
Have a nice day
geometry geometry geometry geometry geometry geometry help me pleasee
Answer:
Step-by-step explanation:
take 74 degree as reference angle
using cos rule
cos 74 =adjacent/hypotenuse
0.275=x/12
12*0.275=x
3.3=x
take 36 degree as reference angle
using sin rule
sin 36=opposite/hypotenuse
0.587=x/11
0.587*11=x
6.457=x
6.5=x
take 39 degree as reference angle
using tan rule
tan 39=opposite/adjacent
0.809=13/x
x=13/0.809
x=16.06
x=16.1
take 16 degree as reference angle
using tan rule
tan 16=opposite /adjacent
0.286=x/14
0.286*14=x
4.00=x
4.0=x
x=
HELPPPPPPPPPPPPPPPPPPPPP
Answer:
29
Step-by-step explanation:
Hope this helps
Have a great day
Two neon lights are turned on at the same time. One blinks every 4 seconds and the other blinks every 5 seconds. In 60 seconds, how many times will they blink at the same time?
3
Hope this helps! :)
______________
What is the volume of the plastic rocket???
Answer:
151 in^3
Step-by-step explanation:
The rocket consists of two shapes - a cone and a cylinder
the volume of the plastic = volume of cone + volume of cylinder
volume of a cylinder = nr^2h
Volume of a cone 1/3(nr^2h)
n = 22/7
r = radius
the diameter is the straight line that passes through the center of a circle and touches the two edges of the circle.
A radius is half of the diameter
Radius = 5/2 = 2.5
Height of cone = 11 - 6 = 5
Volume of plastic = (22/7) x (2/5^2) x 6 + (1/3) x (22/7) x (2/5^2) x 5 = 117.9 + 32.7 = 150.6 in^3 = 151