Answers
Step-by-step explanation:
b²-4ac
(10)²-4(-4)(-8)
=100+16+32
=148
Related Questions
please help can yall solve this
Answers
Lorenzo increases all the prices on his restaurant menu by 8%
Before the increase, the price of a dessert was £4.25
Work out the price of the dessert after the increase.
Answers
Answer:
4.59
Step-by-step explanation:
The question requires the price of the desert after the increase
price of the dessert after the increase is £4.59
Price before increase = £4.25
Percentage increase = 8%
Amount of increase = 8% of 4.25
= 8/100 × 4.25
= 0.08 × 4.25
= £0.34
Price after increase = Price before increase + Amount of increase
= £4.25 + £0.34
= £4.59
Read more:
https://brainly.com/question/24273555
13. Much of the allure that cricket has is due to the fact that it is a ..... sport.
. A. lucrative
B. controversial
C. celebrity
D. useful
Answers
Answer:
A. Lucrative
Step-by-step explanation:
Answer:
A. Lucrative
Step-by-step explanation
(Mark as brainliest answer)
A restaurant offers $12 dinner specials that has 6 choices for an appetizer, 10 choices for an entree, and 3 choices for dessert. How many different meals
Answers
Answer:
19
Step-by-step explanation:
Which of the following shows the best communicative property of addition ?
4+5=4-(-5)
4+5=9
4+5=5+4
4+5=4+(2+3)
Answers
Answer:
In the given options, 4+5 = 5+4 shows the best commutative property.
Step-by-step explanation:
One of the properties that can be applied on numbers is commutative property. Commutative property states that the order of the numbers on which any operation is being performed, can be swapped and the answer won't change.
Commutative property can be applied on addition, subtraction and multiplication.
Commutative property of Addition:
Commutative property of addition states that changing the order of adding two numbers does not change the result i.e. a+b = b+a
In the given options, 4+5 = 5+4 shows the best commutative property.
48494vcxbdfx sbs≥lol
Answers
Answer:
:D
Step-by-step explanation:
have a nice day and I really hope this isn't a genuine question
covent 13/10 to a mixed number
Answers
Answer:
1 whole number 3/10. Above is the answer
Find the sum
1/3(9-6m) + 1/4(12m-8)
Answers
Answer:
1+m
Step-by-step explanation:
YALLL PLEASE HELP ME I WILL MARK BRANLIEST IF CORRECT PLEASE HELP!!!!!!!!
Write an equation in point slope form for the line that goes through the point (2,3) and has a slope of 4.
Answers
Answer:
y=4x-5
Step-by-step explanation:
y=Mx+b
y=4x+b
3=4(2)+b
3=(8)+b
-5=b
Sixty-four percent of those that use drive through services believe that the employees are at least somewhat rude. If you asked 87 people who use drive through services if they believe that the employees are at least somewhat rude, what is the probability that at most 60 say yes?
a. 0.860
b. 0.802
c. 0.057
d. 0.198
Answers
Answer:
The answer to this question would normally be, 85.96%, though that isnt an answer choice so the closest thing to it would most likely be answer choice A.
Using the binomial approximation to the normal, it is found that:
0.86 probability that at most 60 say yes, given by option a.
------------------------
Binomial probability distribution
Probability of exactly x successes on n repeated trials, with p probability.
The expected value is:
[tex]E(X) = np[/tex]
The standard deviation is:
[tex]\sqrt{V(X)} = \sqrt{np(1-p)}[/tex]
----------------------------
Normal probability distribution
Problems of normally distributed distributions can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. Each z-score has a corresponding p-value.The p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X.The probability that the measure is greater than X is 1 subtracted by the p-value.When we are approximating a binomial distribution to a normal one, we have that [tex]\mu = E(X)[/tex], [tex]\sigma = \sqrt{V(X)}[/tex], if [tex]np \geq 10[/tex] and [tex]n(1-p) \geq 10[/tex].
----------------------------
64% use services, thus, [tex]p = 0.64[/tex]87 people are sampled, thus, [tex]n = 87[/tex]The mean and standard deviation are given by:
[tex]\mu = E(X) = np = 87(0.64) = 55.68[/tex]
[tex]\sigma = \sqrt{V(X)} = \sqrt{np(1-p)} = \sqrt{87(0.64)(0.36)} = 4.4771[/tex]
Using continuity correction, the probability that at most 60 use is [tex]P(X \leq 60 + 0.5) = P(X \leq 60.5)[/tex], which is the p-value of Z when X = 60.5, thus:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{60.5 - 55.68}{4.4771}[/tex]
[tex]Z = 1.08[/tex]
[tex]Z = 1.08[/tex] has a p-value of 0.86.
Thus, 0.86 probability that at most 60 say yes, given by option a.
A similar problem is given at https://brainly.com/question/16178115
could someone please help me with #2? Thank you :)
Answers
Answer:
The answer is B.
Step-by-step explanation:
4 is a multiple of 2, which explains the reasoning of answer choice B.
Answer choice A is wrong because 2 is Not a multiple of 4.
Answer choices C and D are incorrect because it takes multiple steps to solve for x and substitute into the other equation. They claim that it takes on step to solve for x, but it would take 2 steps to solve for x.
#teamtrees #WAP (Water And Plant)
There are a total number of 38 possible equally likely outcomes on a roulette wheel. Out of the 38 outcomes, there are 18
odd-numbered outcomes. What's the probability of spinning an odd number?
• Express your answer as a fraction.
Answers
Answer:
9/19
Step-by-step explanation:
just put the total odd numbers, 18, over the total outcomes, 38, and divide them and simplify
Answer:
9/19
Step-by-step explanation:
Fill in the blanks to write an equation in slope-intercept
for representing the function shown in the table.
Answers
Answer:
y=-3x+-8
yw brooooo
Step-by-step explanation:
yw
Connor works in a department store selling clothing. He makes a guaranteed salary of $300 per week, but is paid a commission on top of his base salary equal to 5% of his total sales for the week. How much would Connor make in a week in which he made $2175 in sales? How much would Connor make in a week if he made xx dollars in sales?
Earnings when selling $2175:??
Earnings when selling $x: ??
Answers
Answer:
[tex]Earnings = 308.75[/tex] ---- (a)
[tex]Earnings = 300 + 0.05x[/tex] -- (b)
Step-by-step explanation:
Given
[tex]Base\ Salary = 300[/tex]
[tex]Commission = 5\%[/tex]
Solving (a): Sales of $2175 in a week.
His total earnings is calculated as thus:
[tex]Earnings = Base\ Salary + Commission * Sales[/tex]
[tex]Earnings = 300 + 5\% * 2175[/tex]
[tex]Earnings = 300 + 108.75[/tex]
[tex]Earnings = 308.75[/tex]
Solving (b): Sales of $x in a week.
His total earnings is calculated as thus:
[tex]Earnings = Base\ Salary + Commission * Sales[/tex]
[tex]Earnings = 300 + 5\% * x[/tex]
Convert percent to decimal
[tex]Earnings = 300 + 0.05 * x[/tex]
[tex]Earnings = 300 + 0.05x[/tex]
HELP MEE I DONT UNDERSTAND THIS IM DOING A CHRISTMAS SURVEY TO GET FREE COINS AND THIS IS A QUESTION TY IF YOU ANSWER
Answers
Each tree is 3
Each stocking is 2
Each ornament is 4
3+2+4 is 9
Give the slope between the points. Answer
Answers
With the given points your slope would be -5/4.
calculate the perimeter
Answers
Answer:
Its 58 centimeters
Step-by-step explanation:
Suppose a population grows according to a logistic model with initial population 1000 and carrying capacity 10,000. If the population grows to 2500 after one year, what will the population be after another three years?
Answers
Answer:
7500
Step-by-step explanation:
1 year= 2500
3 years= x
So we got
2500 × 3 = 7500
The population after another three years will be 15,625.
What is an exponent?Let a be the initial value and x be the power of the exponent function and b be the increasing factor.
The exponent is given as
y = a(b)ˣ
Assume a populace becomes as per a strategic model with starting populace of 1,000 and conveying limit of 10,000.
If the population grows to 2500 after one year. Then the increasing factor is given as,
b = 2,500 / 1,000
b = 2.5
Then the equation is given as,
y = 1,000 × (2.5)ˣ
Then the population after another three years will be given as,
y = 1,000 × (2.5)³
y = 1,000 × 15.625
y = 15,625
The population after another three years will be 15,625.
More about the exponent link is given below.
https://brainly.com/question/5497425
#SPJ5
Mr. Carson makes $21.50 an hour. He works 8 hours a day and works 5 days a week.
Answers
Answer:
$860
Step-by-step explanation:
21.50 times 8 = 172
172 times 5 = 860
CallmeCarson lol
Answer:
860$
Step-by-step explanation:
In order to find the answer to this question you need to multiply the amount of hours Carson worked to the amount of days he worked and then you need to multiply that by the amount he gets paid per hour.
[tex]21.50 = ph[/tex]
[tex]hours=8[/tex]
[tex]days = 5[/tex]
[tex]8\times5=40[/tex]
So he worked 40 hours a week
[tex]40 \times21.50 = 860[/tex]
Therefore Mr.Carson has made 860$ that week.
Hope this helps.
Which graph represents the system of equations –3x + y = 3 and –x + 2y = –4?
On a coordinate plane, 2 lines intersect at (3, 0).
On a coordinate plane, 2 lines intersect at (negative 2, negative 3).
On a coordinate plane, 2 lines intersect at (negative 1.5, 1).
On a coordinate plane, 2 lines intersect at (1.5, 2.5).
Answers
Answer:
The correct answer is B
Step-by-step explanation:
Doug rents a kayak for 12 days. The rental charge is $18 per day. Which is the
best estimate for the total cost of the kayak rental?
Answers
Answer:
Yes
Step-by-step explanation:
what is -6(-4d-8.3+3d)
Answers
Answer:
6d+49.8
If looking for d=8.316 but 6 is repeated
Step-by-step explanation:
Answer:
6 d+49.8
Step-by-step explanation:
I simplify
A certain fish grows so that after t years of life its length is given by L(t) = 9 − 1/5t inches. Calculate the average rate of growth over the first year of life.
Answers
Answer:
Step-by-step explanation:
Given the length of a fish after t years modeled by the equation
L(t) = 9 − 1/5t
The average rate of growth is expressed as;
dL/dt = -1/5 (differential of a constant is zero)
Hence the average rate of growth over the first year of life is -1/5 in/year
Given triangle MAT is an isosceles triangle and point H is the midpoint if MT. Prove triangle MHA is congruent to triangle THA
Answers
Answer:
There is everything in the image
The Side-Angle-Side postulate is satisfied. Then the triangle ΔMHA and ΔTHA are congruent with each other.
What is the triangle?A triangle is a three-sided polygon with three angles. The angles of the triangle add up to 180 degrees.
In an isosceles triangle, the two legs of the triangle are congruent and their opposite angles too.
A triangle MAT is an isosceles triangle and point H is the midpoint of MT.
In triangle ΔMHA and ΔTHA, we have
AH = AH (Common sides)
MH = HT (H is the midpoint of MT)
∠AMH = ∠ATH (Isosceles angles)
The Side-Angle-Side postulate is satisfied. Then the triangle ΔMHA and ΔTHA are congruent with each other.
More about the triangle link is given below.
https://brainly.com/question/25813512
#SPJ2
y=0.4x
A.0
B.1/4
C.0.4
What is the slope of the equation? NEED THIS ASAP
Answers
Answer: C. 0.4 is the answer.
Graph this line using the slope and y-intercept:
y= 1/8x + 9
Click to select points on the graph.
Answers
Answer:
Select (0, 9) and (8, 10)
Step-by-step explanation:
The ratio of cups of sugar to gallons of lemonade is 3 cups to 1 gallon. How many cups of sugar are needed to make
5 gallons of lemonade?
Answers
Answer:
15 cups of sugar
Step-by-step explanation:
What is the equation for the line that passes through (3, 2) and has a slope
equal to 1/3
Answers
Answer:
y=1/3x+1
Step-by-step explanation:
If sally has 90000000 apples and gives her freind sophie 1900 of them , and keeps 900 apples for her self hown many apples did she give to charity?1
Answers
Answer: 89,998,910
Step-by-step explanation: if she gives 1900 away and keeps 900 then I’m assuming she gives the rest away to charity and that would be 89,998,910 apples
Answer:
She gave 89997200 apples to charity
Step-by-step explanation:
90000000 - 1900 - 900 = 89997200
or
90000000 - (1900 + 900) = 89997200
Sea level changes occur at a rate of 10 m per 1,000 years.
How much will the sea level change over 100,000 years?
A) 10 m
B) 1,000 m
C) 10,000 m
D) 100,000 m
Answers
Answer:
C) 10,000
Step-by-step explanation:
10x1000 = 10,000
Therefore the answer is 10,000.
Answer:
b
Step-by-step explanation:
since 2 zeros were added to get 100,000 years i just added two zeros to ten which led me to get 1,000 m