The parabola y= ax² opens to the left.
What is Parabola?A parabola is an approximately U-shaped, mirror-symmetrical plane curve in mathematics. It corresponds to a number of seemingly unrelated mathematical descriptions, all of which can be shown to define the same curves.
We have the parabolic equation: y= ax²
1. If 'a' is positive, the parabola will open to the right or upwards.
2. If "a" is negative, the parabola opens to the left or downward.
3. The parabola expands either upwards or downwards if x is squared.
4. The parabola opens to the left or right if y is squared.
Now, as we are given the parabola having x² and 'a' is negative.
Thus, from the points 4 and 2, we get,
The given parabola opens to the left.
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Below is the graph of equation y= |x+2|-1. Use this graph to find all values of x such that...
y<0
To find the values of x such that y is less than 0 in the equation y = |x + 2| - 1, we set y less than 0 and solve for x. The values of x that satisfy y < 0 are x < -1.
Explanation:To find the values of x such that y is less than 0, we need to determine the portion of the graph below the x-axis, since y is negative in that region. Given the equation y = |x + 2| - 1, we can set y less than 0 and solve for x.
Setting y = 0, we have 0 = |x + 2| - 1. Adding 1 to both sides, we get 1 = |x + 2|. When the expression inside the absolute value is positive, the absolute value will be the same. Therefore, we can write x + 2 = 1. Solving for x, we get x = -1.
So, the values of x such that y is less than 0 are x < -1.
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Help me im stuck answer correctly
Answer:
23 1/24
Step-by-step explanation:
70 1/3 minus 24 1/4 divided by 2
Jocelyn solved the following division problem: Mr. Martin brings two gallons of
water to basketball practice for the players to drink. Each gallon contains 128
ounces of water. If Mr. Martin divides the water equally among 9 water bottles,
how much water will be left over? When Jocelyn finished the division problem,
she got the following results: 14 R2 Which answer below should Jocelyn choose?
The answer is 14 with a remainder of 2; she should use the remainder as part of her
answer.
o
The answer is 15; she should round the quotient up by 1 because of the remainder.
0
The answer is 14; she should just ignore the remainder.
O
The answer is 2; she should use the remainder only
Answer:
The answer is 2; use the remainder only
Step-by-step explanation:
The question is asking how much water would be left over, not how much each bottle will get. There is a remainder of 2, so that means there will be 2 ounces left
Joe wants to buy a skateboard but he doesn't know if he has enough money. The price of the skateboard is $85 and the sales tax is 6%. What will be the total cost of the skateboard?
Answer:
$90.10
Step-by-step explanation:
price of the skateboard = $85
sales tax = 6%
Dollar value of sales tax = 6% of price of the skateboard
= 6% of $85 = (6/100) * $85 = ( 6* 85)/100 = $ 5.10
Total cost of the skateboard = price of the skateboard + sales tax value
substituting the value of price of the skateboard and sales tax value, calculated above, we have
Total cost of the skateboard = $85 + $ 5.10 = $90.10
How would I find x, I know it's an isosceles triangle but I so not know how to solve for it?????
Answer:
x=7 (if your teacher cares it could + or - 7)
Step-by-step explanation:
Okay, since it's a 90 degree triangle you can use the Pythagorean theorem
( a^2 + b^2 = c^2)
Since it's an isosceles triangle the other side is x because it's the same value.
x^2 + x^2= (7[tex]\sqrt{2}[/tex] )^2
Add the left side
2x^2= 7^2 + [tex]\sqrt{2}[/tex]^2 roots and square roots cancel each other out
So -> 2x^2= 49 x 2 =98
just solve for x.
x^2 = 98/2
x^2= 49
Square root both sides
x= 7
The number of dogs in a city is declining at a rate of about .08% each
year. If there were 3500 cats to begin with, how many will there be in 10
years?
Answer:
There will be 3472 cats in 10 years
Step-by-step explanation:
There were 3500 cats
The number of dogs in a city is declining at a rate of about 0.08% each year.
We are supposed to find the no. of cats in 10 years
Formula :[tex]N(t)=N_0(1-r)^t[/tex]
Where N(t) = Remaining cats after t days
[tex]N_0[/tex] = Initial population
r = rate of depreciation
t=time
So, No. of cats remained after 10 years = [tex]3500(1-\frac{0.08}{100})^{10}=3472.100[/tex]
Hence There will be 3472 cats in 10 years
Solve (work please)
-2a + 1.6 = 5.6
Galina is finding the area of triangle RST. To do so, she follows the steps in the table.
Step 1 Draw a rectangle around triangle RST.
Step 2
Find the area of the rectangle.
Step 3 Find the area of the three right triangles created
by the sides of the rectangle and the intersection
with each vertex of the triangle.
Step 4
Subtract the area of the right triangles from
the area of the rectangle.
To solve the problem using these steps, what are the dimensions of the rectangle she should draw?
On a coordinate plane, triangle R S T has points (negative 1, 1), (1, 3), and (2, negative 1).
2 units by 4 units
3 units by 4 units
3 units by 5 units
4 units by 5 units
Answer:Answer is B 3 units by 4 units
Step-by-step explanation:
Took review on e2020
What unit is used to measure the attribute under investigation?
A.) Ages
B.) Years
C.) Family Reunion
D.) Number of people
Answer:
A). Ages
Step-by-step explanation:
The bar chart presents the number of people who are of different ages at a family reunion.
The attribute being measured is the age as can be seen on the horizontal axis of the bar chart.
The correct option is A.
What is the slope of the graph of the linear function shown on the grid?
A. Slope = 1/3
B. Slope = -1/3
C. Slope = -3
D. Slope = 3
Answer:
B Slope = -1/3
Step-by-step explanation:
you are going down 1 and right 3
when you go down it becomes a negative so vice versa up would be positive
when you go right it becomes positive so when you go left it would be negative
Is this relation a function? Justify your answer.
Answer:
Step-by-step explanation:
B is the answer
for the same x you could not have diferent y
Plz help will mark brainliest
Answer: D
142
Step-by-step explanation:
Answer:
142
Step-by-step explanation:
Parentheses (yes {} and [] count but you work from the inside out)
Exponents
Multiply
Divide
Add
Subtract
Multiplying Any Number by a
Positive will get you a Positive
Answer?
Answer:
As long as you don’t multiply a negative number either positive number then it’s negative
Step-by-step explanation:
Negative times Negative= Positive
Positive times Positive=Positive
Negative times Positive= Negative
Positive times Negative= Negative
Step-by-step explanation:
(-) × (-) = +
(-) × (+) = -
(+) × (+) = +
(+) × (-) = -
A bag contains ten strawberry Starbursts and seven blue raspberry Jolly Ranchers. You randomly draw one, then you put it back in the bag because you didn't like what you chose and draw another.
Choose your answers from the Work Bank.
1) Is this event dependent or independent?
2) Probability of picking a Starburst First:
3) Probability of picking a Jolly Rancher Second:
4) Probability of picking a Starburst First and a Jolly Rancher Second:
Answer:
dasifgepfisubpuibpiuepc
Step-by-step explanation:
Consider the tables.
Which table shows input and output values that represent a cubic function?
Table B
Table A
Table D
Table C
Answer:
Table C
Step-by-step explanation:
The input and output values represent a cubic function because you find the 3rd differences between the outputs and they are both -640
how do i graph this ?
Answer:
add 3 so you get y=-4(x-1)+3 then plot the verticie at 1,3 then graph the slope of -4
Step-by-step explanation:
Answer:
I think this is it
Step-by-step explanation:
If a= 0,0 and b=8,2, what is the length of ab
Select the two values of x that are roots of this equation x2+3x-3=0
Answer:
x= (-3i-√3)/2
x= (3i+√3)/2
Step-by-step explanation:
you have to use the quadratic formula which is (-b±√b^2+4ac)/2(a)
a=1
b=3
c= -3
when you plug the numbers into the formula, you get a negative in the square root, so you have to bring out an Imaginary number which is i and connect it with your -b value.
in this case, you only have to switch out the plus and the minus strictly because of the imaginary number
Why dint you look at that another question
What is the quotient *Again*
A. 3
B. 4
C. 5
D. 6
E. 7
Answer:
B. 4
Step-by-step explanation:
36/9=4, since 9*4=36. Therefore, the correct answer is B, 4. Hope this helps!
10 - 9 x 5 + 6 x (-2)
Answer:
The answer to your equation is -47.
Step-by-step explanation:
Follow the order of operations. First do 9*5=45, and 6*-2 to get -12. Next, just finish the equation from left to right to get -47.
Please help me answer this its timed!
Answer:
max = 1
Step-by-step explanation:
sin (x)
The range of values is from -1 to 1
The maximum is 1 and the minimum is -1
The period is 2pi
Use the discriminant to determine the number of real solutions for the equation below.
x^2+ 2x + 1 = 0
Answer:
there is one real solution
Step-by-step explanation:
use the quadratic formula. what is in the square root is called the discriminant.
since it came out to 0 there is one real solution
x2 = 169 Explain the first step in solving this equation.
Answer:
so i divide 169 divided by 2
Step-by-step explanation:
well what i do is that i do a inverted T
x2I=169
then i look to see what is the opposite of multiplying which is dividing
so i divide 169 divided by 2
which will give me an answer
Answer:
13,-13
Step-by-step explanation:
*I Think you meant x²=169
so the first step is to square root both sides so
[tex]\sqrt{x^2}= \sqrt{169}[/tex] So
x=±13 or
13,-13
4(6p+9y)
Can some one plz help me with this than when u are done with the first question do the second one plz ill give u 35 points but has to be a real correct answer.
The second question is
-5(4s+5k)
Answer:
Step-by-step explanation:
Question 1:
Distribute 4
4 times 6p is 24p
4 times 9y is 36y
Answer: 24p+36
Question 2:
Distribute -5
-5 times 4s is -20s
-5 times 5k is -25k
Answer: -20s-25k
What percent of the spring days had either rained or snowed ?
13%
35%
38%
46%
38%
It is 38% because 35/93 is like 0.3775942
Answer:
38%
Step-by-step explanation:
1. add the number of rain and snow days
[tex]24+11=35[/tex]
2. divide by total number of days
(total amount of days: 93)
[tex]\frac{35}{93}[/tex] [tex]=.376[/tex]
rounds to .38
3. multiply by 100 to get it as a percent
[tex](.38)(100)=38%[/tex]
Convert 253 into a hexidecimal
Answer:
0xFD
Step-by-step explanation:
To convert 253 into hexadecimal, divide the number by 16 repeatedly and record the remainders.
Explanation:To convert 253 into hexadecimal, you need to divide the number by 16 repeatedly and record the remainders. The most significant digit of the hexadecimal representation will be the last remainder obtained. So, let's proceed:
253 divided by 16 is 15 with a remainder of 13 (D in hexadecimal).15 divided by 16 is 0 with a remainder of 15 (F in hexadecimal).Therefore, 253 in hexadecimal is DF.
Six words have 2 vowels and 2 consonants .How many letters are there in 6 words?How many vowels consonants
Answer:
24, 12, 12
Step-by-step explanation:
I do not understand the question, but I believe you gave us how many vowels and consonants are in a word. Then you asked us for how many of them were in 6 words, which is simple math of 4 times 6. I don't get the last part, but I think you asked how many consonants in 6 words, and how many vowels in six words, another simple math question, 2 times 6.
In the English language, 5 letters are typically considered vowels: a, e, i, o, and u, with 2 additional letters, y, and w, that can sometimes act as vowels or consonants depending on their position in a word. To find out how many vowels and consonants there are in six words, we need more information about the specific six words.
Explanation:In the English language, 5 letters are typically considered vowels: a, e, i, o, and u. However, there are 2 additional letters, y, and w, that can sometimes act as vowels or consonants depending on their position in a word.
To find out how many vowels and consonants there are in six words, we need more information about the specific six words. If each of the six words has 2 vowels and 2 consonants, then the total number of letters in the six words would be 6 x (2 + 2) = 24.
A quadratic function and an exponential function are graphed below. Which graph most likely represents the exponential function? (5 points) graph of function t of x is a curve which joins the ordered pair 0, 1 and 1, 3 and 3, 27. Graph of function p of x is a curve which joins the ordered pair 0, 2 and 1, 3 and 3, 11 and 5, 27 and 6, 38 a p(x), because an increasing exponential function will always exceeds an increasing quadratic function until their graphs intersect b t(x), because an increasing quadratic function will always exceeds an increasing exponential function until their graphs intersect c p(x), because an increasing quadratic function will eventually exceed an increasing exponential function d t(x), because an increasing exponential function will eventually exceed an increasing quadratic function
Answer:
d t(x), because an increasing exponential function will eventually exceed an increasing quadratic function
Step-by-step explanation:
t(x) joins the ordered pairs:
(0, 1) (1, 3) and (3, 27)
p(x) joins the ordered pairs:
(0, 2) (1, 3) (3, 11) (5, 27) and (6, 38)
After t(x) and p(x) intersection, t(x) increases in a greater amount than p(x)
Answer: he is correct
Step-by-step explanation:
Jessie ran 4 miles in 1 hour. How long did it take Jessie to run one mile? *
Answer:
15 mins
Step-by-step explanation:
4 miles : 1 hour
1 mile : x hours
x/1 = 1/4
x = ¼ hours
¼ hours = ¼ × 60 = 15 mins
Answer: 15 minutes
Step-by-step explanation: 1 hour is 60 minutes, 60 minutes divided by the 4 miles will give you 15 minutes.
The length of a rectangle is 6 inches longer than its width. The perimeter of the rectangle is 28 inches. If x represents the width of the rectangle in inches, which equation can be used to find its value? x + 6 + 2x = 28 6x + 6x + x + x = 28 2(x + 6) = 28 2(x + 6) + 2x = 28
Answer:
x = 8
Step-by-step explanation:
28 = 2(x + 6)
28 = 2x + 12
28 - 12 = 2x
16 = 2x
16/2 = x
8 = x
x = 8
Answer:
D. 2(x + 6) + 2x = 28