Answer: 25
Step-by-step explanation: The quadratic equation may be expressed in a form, ax² + bx + c =0. From the given equation, a = 2, b = 1, and c = -3. Substituting these value to the equation of the discriminant (D).
D = b² - 4ac
D = 1² - (4)(2)(-3) = 25
Thus, the discriminant of the equation of 25.
The typical school day lasts 420
minutes. If Lisa has science class for 105
minutes, what fraction, decimal, and
percent of the school day does she
spend in her science class?
brainliest for help!
Sketch a graph of the function
y =sin(x) + 2
Answer:
The parent sine graph [tex]y=sin(x)[/tex] has a range of -1 ≤ y ≤ 1
It crosses the x-axis x = 0° ± 180°n
The maximum points occur when x = 90° ± 360°n and y = 1
The minimum points occur when x = 270° ± 360°n and y = -1
The sketch the graph of function [tex]y=sin(x)+2[/tex] we simply move the graph of [tex]y=sin(x)[/tex] up 2 units.
So this means it will have a range of 1 ≤ y ≤ 3
It no longer crosses the x-axis.
The maximum points occur when x = 90° ± 360°n and y = 3
The minimum points occur when x = 270° ± 360°n and y = 1
Attached diagram
The parent function [tex]y=sin(x)[/tex] is shown in grey (dashed line)
The function [tex]y=sin(x)+2[/tex] is shown in red.
3. If Jessie worked 36 hours at $6 per hour at a coffee bar last week and got $188 in tips, how much did she earn? (1) $216 (2) $288 (3) $296 (4) $404 (5) $1,467
Answer:
The answer is 404
Step-by-step explanation:
multiply 36 by 6= 216
add 188= 404
she got $404.00
i need help with the answer
Answer:
x² - 10x + 2
Step-by-step explanation:
(x - 2)(2x + 3) = 2x² + 3x - 4x - 6
= 2x² - x - 6
(3x² - 11x - 4) - (2x² - x - 6) = x² - 10x + 2
Please help me i have part one to this question I told you guys everything you need to know in my last question Ill show u my last question in comments and also 100 POINTS PLEASE HELP AND ILL BRAINLEST
Answer:
See below ~
Step-by-step explanation:
1. Vertically opposite angles are equal when two lines intersect.
m∠3 = m∠12. The sum of two interior angles is equal to the exterior angle forming a linear pair with the third angle.
m∠4 = 88° because 180 - (41 + 47) = 92 and 180 - 92 = 883. The sum of the interior angles of a triangle is 180°.
55° + 90° (right angle) + ∠ACB = 180°∠ACB = 180° - 145°∠ACB = 35°4. You can find the length of a hypotenuse using the Pythagorean Theorem.
EF = √3² + 2² = √13EF = 3.6 unitsI WILL GIVE 20 POINTS TO THOSE WHO ANSWER THIS QUESTION RIGHT NOOOO SCAMS AND EXPLAIN WHY THAT IS THE ANSWER
Answer:
Step-by-step explanation:
Write two expressions that could be
used to help you determine the new cost of
a $68 dinner after adding on a 18% tip.
Answer:$80.24
Step-by-step explanation:68*0.18(18%)
12.24
68+12.24=$80.24
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When f(x) = 9x² - 5x + 3, evaluate f(-3)
f(− 3) =
Question Help: Video
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Answer:
Step-by-step explanation:
Remark
f(x) = 9x^2 - 5x + 3 is given. The notation means that wherever you see and x on the right, you replace it with the x in the brackes on the left. f(3) is a direction, not anything you have to adjust or manipulate.
Solution
f(-3) = 9*(-3^2) - 5*(-3) + 3 (-(3))^2 = -3 * -3 = 9 two minuses make a +
f(-3) = 9*(-3)(-3) + 15 + 3 -3 times an operation of minus equals a +
f(-3) = 9 * 9 + 15 + 3
f(-3) = 81 + 15 + 3
Answer: f(-3) = 99
How many whole numbers between -32 and 77
Answer:
77 whole numbers because anything below 0 does not count as a whole number.
Answer: 77
Step-by-step explanation:because - numbers arent whole
Find the value of X in this shape
Apply Pythagorean theorem
P²=H²-B²x²=17²-14²x²=289-196x²=93x=√93Cody wanted to play fetch with his dog. His dog had ten chew toys. Cody took six toys outside for his dog. Write a decimal to show what part of the toys is still inside.
Answer:
60% :)
Step-by-step explanation:
6/10 = 0.6 x 100 = 60% :D
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need help on this one
8 plants because you count all the dots that are taller than 13 inches. All the X's represent how many plants are the specific height.
Hope it helps!
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The line plot shows the ages at which a group of musicians started to play an
instrument. Based on the data in the line plot, which statement is not true?
х
X X X
x x х х х
х х х х х х х
х х х х х х х х х
х х х х х х х х х
+ +
4 5 6 7 8 9 10 11 12
Age of musician
*I*
The range of the ages shown is 8 years.
Most of the musicians started to play at age 9 or older.
Answer:
Their are 34 musicians
Step-by-step explanation:
In the expression x2 + 4x2 + 16x2, x2, 4x2, and 16x2 are examples of _____
Answer:
345-345 x 234567890
Step-by-step explanation:
asi queda el doble
It cost Luis $5 to park his car at a parking meter for 2 hours. What is the price to park for 1 hour? Draw mode or write a word sentence to help you solve the problem. Then write and solve a multiplication
Answer: 2.5$
Step-by-step explanation: Since 1 hour is half of 2 hours and the price to park for 2 hours is 5. We can take half of the 2 hour parking price to find the 1 hour price.
5$/2 Hours = 2.5$ per hour
Which of the following graphs is not a function ?
A salesperson earns a commission of $480 for selling $4000 in merchandise find the commission rate write the answer as a percentage
Answer:
[tex] \large{ \boxed{12\%}}[/tex]
____________________________________
[tex] \large{ \tt{G \: I \: V \: E \: N}} : [/tex]
[tex] \longrightarrow{ \tt{}}[/tex] Commission received : $ 480
[tex] \longrightarrow[/tex] Selling price of merchandise : $ 4000
[tex] \large{ \tt{ To \: Find : }}[/tex]
[tex] \longrightarrow[/tex] Commission rate
Let the commission rate be x %[tex] \large{ \tt{SOLVING : }}[/tex]
[tex] \star \: \large{ \tt{x\% \: of \: 4000 = 480}}[/tex]
[tex] \longrightarrow \: { \tt{ \frac{x}{100} \times 4000 = 480 }}[/tex]
[tex] \longrightarrow{ \tt{40x = 480}}[/tex]
[tex] \longrightarrow{ \tt{x = \frac{480}{40} }}[/tex]
[tex] \longrightarrow{ \tt{x = 12\%}}[/tex]
Ya.yy!! We solved the question :D_______________________________
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What is the value of 2 ÷ (4 ÷ (6 ÷ (8 ÷ 10)))?
Answer:
1.66
---------
First find the value of 8 divided by 10 because they are in parentheses.
[tex]10/8 = 1.25[/tex]
Divide 6 by 1.25
[tex]6 / 0.8 = 4.8[/tex]
Then, divide by 4
[tex]4.8 / 4 = 1.2[/tex]
Finally, divide 2 by 1.2
[tex]2 / 1.2 = 1.66[/tex]
The answer should be 1.66 if you do the problem right to left(because of the order of operations).
your expenses total $5.600 per month. you charge$25 per hour and have contracts for steady work that total 45 hours per week for 52 weeks of the year. How much does this hourly rate cover your expenses?
Answer
58,432 money you have leftover or $8,700 still left to pay.
Step-by-step explanation:
After knowing the contracts for steady work is 45 hours per week I just divided it by the days she works a week, which is most likely 5 and got 9 hours a day, then did $25 * 9 to get the payment per day which is $225 then multiplied it by 5 for the days working in a week, then multiply it again by 52 to get $58,500 as your payment and if your expenses is $5.6 per month (5.6*12=67.2) then your payment cover all of it and you still have $58,432.8 remaining, but if the expenses are $5,600 a month (5,600*12=67,200) then you cover most of it but still have to pay $8,700
The diagram shows a cube with edges of length x cm and a sphere of radius 3cm
The surface area of circle of radius 3 cm and cube of edge length x cm being equal implies [tex]x = \sqrt{k\pi}[/tex] integer (k = 6).
How to find the surface area of a sphere?Suppose that radius of the considered sphere is of 'r' units.
Then, its surface area S would be:
[tex]S = 4\pi r^2 \: \rm unit^2[/tex]
Given that:
Side length of considered cube = x cmRadius of considered sphere = 3 cmSurface area of the considered cube = surface area of the considered sphere.Finding the surface area of the considered cube and sphere:
Surface area of cube with x cm edge length = [tex]\rm 6 \times side^2 = 6(x)^2 \: \rm cm^2[/tex]Surface area of sphere with radius r = k cm is [tex]4 \pi r^2 = 4\pi (3)^2 = 36\pi \: \rm cm^2[/tex]Thus, we get:
[tex]6x^2 = 36\pi\\\\\text{Dividing both the sides by 6}\\\\x^2 = 6\pi\\\\\text{Taking root of both the sides}\\\\x = \sqrt{6\pi} \: \rm cm[/tex]
(took positive value out of the root since x cannot be negative as it represents length of the edge of a cube which cannot be a negative quantity).
Thus, the surface area of circle of radius 3 cm and cube of edge length x cm being equal implies [tex]x = \sqrt{k\pi}[/tex] integer (k = 6).
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You attend a working dinner with four other colleagues. Since alcohol
is not reimbursed by your company. your party receives two separate
bills: One for food ($156.65) and one for alcohol ($49.50). Each
needs to be split 5 ways.
How much do you owe for each bill?
$3.13 for food and $9.90 for alcohol
$31.33 for food and $0.99 for alcohol
$31.33 for food and $99.0 for alcohol
Using proportions, it is found that the amount owed for each bill are given as follows:
$31.33 for food $9.90 for alcohol.
What is a proportion?A proportion is a fraction of a total amount.
In this problem, each of the bills are split equally among the five people, hence the fraction is 1/5.
Thus:
1/5 x 156.65 = $31.33
1/5 x 49.50 = $9.90.
Hence the amount owed for each bill are given as follows:
$31.33 for food $9.90 for alcohol.
More can be learned about proportions at https://brainly.com/question/24372153
Given that 11x-3>=28x +10 State the least possibe value of x if a)x is an integer b)x us a prime number
Answer:
a, b) no solution
Step-by-step explanation:
The solution of your inequality on real numbers can be used to inform the solution for other domains.
__
11x -3 ≥ 28x +10
-13 ≥ 17x . . . . . . . . subtract (11x+10)
-13/17 ≥ x . . . . . divide by the coefficient of x
__
a)If x is an integer, there is no least possible value. x will approach negative infinity. (no solution)
__
b)There are no negative prime numbers, so there are no values of x that are prime. (no solution)
what is the volume of Francisco’s water bottle?
Answer:
Anything known? I mean the lenght of bottle or anything like that?
help... I dont understand show you work or just answer it..
first person to answer gets brainly!!
Answer:
D) 46
Step-by-step explanation:
1) Substitute the given values into [tex]7p + \frac{q}{3}[/tex].
= [tex]7(6) + \frac{12}{3}[/tex]
2) Solve it.
= [tex]42 + \frac{12}{3}[/tex]
= [tex]42 + 4[/tex]
= 46
Two friends, Bob and Ben, each buy one ticket for a drawing. They can choose six numbers from a total of one hundred numbers (0 - 99) for their ticket. Bob chooses the numbers 1, 2, 3, 4, 5, 6, and Ben chooses the numbers 39, 45, 66, 72, 74, 89. Who has a higher probability of winning the drawing?
Bob and Ben, both have equal probabilities of 6 % of winning.
What is probability?Given that Bob and Ben are two friends who buy one lottery ticket each. Each ticket contains six numbers from a total of one hundred numbers from 0 to 99.
Bob chooses the numbers 1, 2, 3, 4, 5, 6, and Ben chooses the numbers 39, 45, 66, 72, 74, 89.
We are to select the friend who has a higher probability of winning.
Let, 'S' be the sample space for the experiment.
Then, S = {0, 1, 2, . . . , 98, 99} ⇒ n(S) = 100.
Let, B and F are the events that Bob win and Ben win respectively.
Then,
B = {1, 2, 3, 4, 5, 6} ⇒ n(B) = 6
and
F = {39, 45, 66, 72, 74, 89} ⇒ n(F) = 6.
Therefore, the probability of even t B is
[tex]P(B)=\dfrac{n(B)}{n(S)}=\dfrac{6}{100}=6\%[/tex]
and the probability of event F is
[tex]P(B)=\dfrac{n(F)}{n(S)}=\dfrac{6}{100}=6\%[/tex]
Since, both the events have equal probabilities, so there is an equal chance of winning of Bob and Ben.
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Answer:
See image
Step-by-step explanation:
Plato
PLEASE HELP! ILL MARK BARINLIEST AND PUT 5 STARS! ITS DUE IN 5 MINS!
Answer:
Rug 2
667/25 yd
Step-by-step explanation:
Bedroom: 23/5 x 29/5 = 667/25 yd
Rug one > 26.68
Rug two < 26.68
Which triangle is a reflection of the red triangle? 4. 1. 3. 2.
Answer: Triangle 4
The red triangle (that's unlabled) is reflected over the vertical line x = 6 to produce triangle 4.
An expression is shown.
re-
emer
30.25 -(-5.7) - 2.08
What is the value of the
expression?
Answer:
Step-by-step explanation:
-(-5.7) = 5.7
30.25 - (-5.7) - 2.08 = 30.25 + 5.7 -2.08
Now add 30.25 & 5.7
= 35.95 - 2.08
= 33.87
Susan gave of a pizza to her brother, Joe. Then, she gave of what was left to her mother, and ate the rest herself. What percent of the pizza did Susan eat?
A.
6.25%
B.
5.625%
C.
93.75%
D.
56.25%
Your answer is A. 6.25%
What is the expanded form of 72 cubed?
[72x2]
{72x3}
[72x72]
{72x72x72}
Answer:
72 × 72 × 72
72³ is 72 cubed, the tiny 3 indicates that we multiply 72 by itself 3 times.