Find the zeros of y=x2 - 4x-9 by completing the square.
A X=3/13
B. x=13
C. x=-21-13
D. x=213
Answer: B
Step-by-step explanation:
Help someone pls ASAP
Answer:
G
Step-by-step explanation:
Answer:
G
Step-by-step explanation:
Ez
Evaluate 6n-2 for n=4.
Answer:
6n-2 = 22
Step-by-step explanation:
n = 4
6(4)-2
24-2
22
Which statement about rational numbers is false?
O A. They can be written as terminating decimals.
B. They can be written as ratios of two integers.
O C. They can be written as fractions whose equivalen decimals repeat.
O
D. They can be written as fractions with a denominator of 0.
A student mixed 3/5 liter of citric acid solution. He used 1/6 of the citric acid solution for the experiment. How much of the citric acid solution did he use? Be sure the answer is in simplest form
Answer:
1 / 10 L
Step-by-step explanation:
Litres of citric acid solution = 3/5
Fraction of solution used = 1/6
1/6 of 3/5
1/6 * 3/5
= (1 * 3 / (6 * 5)
= 3 / 30
= 1/ 10
The length of a rectangle is 16 units more than its width. The area of the rectangle can be expressed as
x^4 – 64.
Which expression represents the width of the rectangle?
The width of the rectangle represented by the expression (x⁴ – 64)/x.
What is rectangular shape?A quadrilateral with parallel sides that are equal to one another and four equal vertices is known as a rectangle.
Given:
The length of a rectangle is 16 units more than its width.
Let the length is x units.
Then width = (x + 16) units.
The area of the rectangle can be expressed as
x⁴ – 64 = length x width
x⁴ – 64 = x (x + 16)
x + 16 =(x⁴ – 64)/x
Therefore, the width expression is (x⁴ – 64)/x.
To learn more about the rectangular;
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On a school trip 1/5 of teachers classes will be going if there are 105 students in all his classes how many students will be on the trip please help
Answer:
The answer is 21 ,
What is the coefficient of z in the expression 5xy + 10xyz+3?
Answer:
10. is. the. coefficient. of. z
which of the following graphs represents y=x-2
Answer:
graph 2
Step-by-step explanation:
Give a non-example of coefficient in math. Hurry please I have school tomorrow!!!
Convert the measurement. Round to the nearest hundredth.
12 feet = meters
Answer:
3.7 metres
Step-by-step explanation:
1 foot = 0.305 metre
12 foot = 12 × 0.305
= 3.6576
Rounding the answer to nearest hundredth
3.6576 = 3.7000
= 3.7 metres
You buy a day pass to use the subway for $5. After buying the pass, you pay $2 per ride. Write an equation to describe how much money, y, you pay to ride x number of rides.
Hi there!
So here says that when I buy a day pass using the subway I pay $5 and $2 per ride.
This means that it’ll be $7 per ride.
y=7
x=1
So for every 1 ride on the subway, I have to spend $7.
what is f(5) f(x)=3x+2
════════ ∘◦❁◦∘ ════════
Answer : 17════════════════════
Known thatf(x) = 3x + 2
════════════════════
Questionf(5) = ..?
════════════════════
Way to do#since the x inside (x) change into (5), then just change the x with (5)
f(x) = 3x + 2
f(5) = 3(5) + 2
f(5) = 15 + 2
f(5) = 17
════════════════════
Miranda graphed (y + 1)2 > 6(x - 2).
Which could Miranda use to justify that her graph is correct? Check all that apply.
Because only the y quantity is squared, the curve is a parabola.
The parabola opens right because 6 is in front of the x-quantity.
There is a strict inequality so the boundary is included in the solution set.
The shading is outside the parabola because (0,0) satisfies the inequality.
The values subtracted from x and y in the equation are the coordinates of the vertex which
O O O O
Answer:
The correct options that describe the inequality (y + 1)² > 6·(x - 2)
1) Because only the 'y' quantity is squared the curve is a parabola
2) The parabola opens right because 6 is in front of the 'x' quantity
3) The shading area is outside the parabola because (0, 0) satisfies the inequality
4) The values subtracted from 'x', and 'y' in the equation are the coordinates of the vertex
Step-by-step explanation:
The given inequality graphed by Miranda is presented as follows;
(y + 1)² > 6·(x - 2)
By simplification, we get;
Given that the inequality is of the form (y - k)² > 4·p·(x - h), we have;
The curve is a parabola as only the 'y' quantity is squared
-k = 1
∴ k = -1
4·p = 6
∴ p = 6/4 = 3/2 = 1.5
p = 1.5
-h = -2
∴ h = 2
The vertex of the parabola = (h, k) = (2, -1)
The axis of symmetry = The x-axis
p = 1.5 > 0, therefore, the parabola opens right
Therefore, the parabola opens right because 6 is in front of the 'x' quantity
There is a strict inequality therefore the boundary is not included in the solution set
When x = 0 and y = 0, we have;
(y + 1)² > 6·(x - 2)
(0 + 1)² > 6·(0 - 2)
1² > 6 × (-2)
1 > -12, which satisfies the inequality and (0, 0) is on the left and below the vertex, therefore, the shaded area is outside the parabola
The vertex of the parabola given in the form, (y - k)² > 4·p·(x - h), is (h, k), which are the values subtracted from 'x', and 'y' in the equation
Therefore, the vertex of the given parabola, (y + 1)² > 6·(x - 2) = (2, -1)
Answer:
A, B, D, and E
Step-by-step explanation:
right on edge 2022 :)
Please help if you understand table of products and standard forms!
Answer:
x -2
4x 4x² -8x
2 2x -4
=> = 4x² - 6x - 4
-2ab
———
a + b
(if a = 8 and b = -4)
Answer:
The answer is 16.
Step-by-step explanation:
First you need to substitute the letters with the number.
1 -2ab = -2(8)(-4)= 64 -2(8)=-16 -16(-4)=64 8-4= 4 64/4= 16Out of A class of sixth graders, 30% join the band. If there are 186 graders in total, how many are in band?
Answer:
55 (approx.)
Step-by-step explanation:
30% of 186 students joined the band
(30/100) × 186
5580/100
55.8
= 55 students (approx.)
(the answer will come approximate as final is in decimal)
Which graph represents a function?
Answer: The first one
Step-by-step explanation:
∠SWY≅∠UXV Given
2 ∠S≅∠U Given
3
VW
≅
XY
Given
4 WY=XY+WX Additive Property of Length
5 VX=VW+WX Additive Property of Length
6 WY=VW+WX Substitution
7 VX=WY Transitive Property of Equality
8 △SWY≅△UXV
is this a different language-
PLEASEEE HELP EASY QUESTION I THINK 15 points!
Answer:
Step-by-step explanation:
-3(-3y+1)-3y=-15
9y-3-3y=-15
6y=-12
y=-2
x=-3(-2)+1
x=7
Help need answer fast
Answer:
2
Step-by-step explanation:
X = 2
3(2) + 3 = 4(2) + 1
6 + 3 = 8 + 1
9 = 9
Kalani has run 4 1/5 miles in 2/3 an hour. If he continues to run at this rate, how many miles will he run in one hour?
Answer:
Kalani will run 6.3 miles OR 6 3/10 miles.
Step-by-step explanation:
So first step that I would do is make it easier to understand by converting the fraction to a whole number. 2/3 hour= 40 minutes.
So Kalani runs 4 1/5 miles in 40 minutes.
Then, we convert 4 1/5 to 4.2. Next, I would divide 4.2 by 2 to get how long he ran in 20 minutes. 4.2/2=2.1.
The final step is to add 2.1 and 4.2 and we get 6.3.
Extra step:
But if we need to turn it back into a fraction, it would be 6 3/10
Hope this helps :)
Triangle ABC is rotated 45 digress counterclockwise about vertex A to obtain triangle XYZ. If the m
HURRY MY TEACHER NEEDS ME TO TURN IT IN OR ILL GET A REFERAALL
Consider the points K(1,2) and L(3,5).
What possible coordinates for Point J will make Figure JKL a right triangle with the right angle at Point J?
Enter the correct answers in the boxes.
Answer:
im really not sure and its probs wrong but (3,2)??
Step-by-step explanation:
Answer:
J(3,2)
Step-by-step explanation:
1+(1/(1+(1/(1+(1/x)))))
The answer is
3x+2/2x+1
Answer:uhhhhhhhhhhhhhhhhhhhhhh dont know how to help u but heres some pics for u
Step-by-step explanation:
pls help! i’ll give brainly to the right answer
if 12 hats for a birthday party cost $5.40, how much does it cost for 1 hat?
Answer:
2.22222222
Step-by-step explanation:
3. A horse eats 18 kg of corn in 12 days? How much does he eat in 9 days?
(a) 11.5 kg
(b) 12.5 kg
(c) 13.5 kg
(d) 14.5 kg.
Explanation
Answer:
13.5
Step-by-step explanation:
becoz,
18*9/12
=13.5
Shop keeper buys a television from a manufacture the shopkeeper sells the television for $ 2700 at a profit 20% how much money did the shop keeper pay the manufacture for the television
Answer:
$3,240
Step-by-step explanation:
The computation of the money that have to be paid by the shopkeeper to the manufacture is shown below:
Given that
the sale price of television is $2,700
And, the profit is of 20%
So, the price paid is
= $2,700 + $2,700 × 20%
= $2,700 + $540
= $3,240
help me with the three ONLY answers in DECIMAL
Answer:
1. 216
2. 77
3. 30.375
Step-by-step explanation:
I need help with this
Answer:
31.4
Step-by-step explanation:
2x3.14x5=31.4
(2x3.14xRadius)
Please Give Me Brainliest lol