Answer:
yes!
Step-by-step explanation:
Answer:
No.. 4×10^6 is 4000000
..........
150 is 25% of what number? Four students solved this problem using equivalent ratios. Choose the student whose work is correct.
Answer:
liam's answer is correct
Step-by-step explanation:
Answer:
Yes it is Liam
Step-by-step explanation:
Good job other guy! :)
Help plz aidjkeksnszhosksoaoaoaozizbzbzjsijssj
If four loaves of bread costs $8, a loaf of bread and a bag of oranges costs $8, and a loaf of bread, two bags of oranges and a basket of apples costs $19, what is the cost of a basket of apples?
basket of apples cost $6
Step-by-step explanation:
8/4 bread= $2
8-2=6
$6= 1 bag of orange
19-13=6$
Points..............
What are some examples of mathematical concepts which are very intuitive but difficult to prove mathematically?
No answer needed!
Answer: 2 * 2 = 4
Explanation: Thanks for the points !!
Which number sentence matches a model with 9 balloons and 9 weights?
Which number sentence matches a model with 9 balloons and 9 weights?
9+0=99 plus 0 is equal to 9
9+(−9)=09 plus negative 9 is equal to 0
9+9=189 plus 9 is equal to 18
−9+(−9)=−18
The correct number sentence matches a model with 9 balloons and 9 weights is,
⇒ 9 + (-9) = 0
Here,
We have to find the number sentence matches a model with 9 balloons and 9 weights.
What is Mathematical expression?
Mathematical expression is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
Now,
Since, The balloons are in upward direction, so it take positive sign.
Hence, 9 balloons = +9
Since, The weight is are act in downward direction, so it take negative direction.
Hence, 9 weight = -9
Combine both we get;
9 + (-9) = 9 - 9 = 0
Therefore, The correct number sentence matches a model with 9 balloons and 9 weights is,
⇒ 9 + (-9) = 0
Learn more about the mathematical expression visit:
https://brainly.com/question/1594087
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The cost of a monthly cell phone plan, in dollars, is modeled by the function c(x)=0.6x+30 where x is the number of text messages.
a. $1.80 per text message
b. $0.60 per text message
c. $3.06 per text message
d. $6.00 per text message
please help me out here I would really appreciate it (will give brainiest if right)
THANKS KINGS AND QUEENS
Answer:
265
Step-by-step explanation:
since take the 100 on the left if u put 2 lying down it wont fit, about half of that would fit. So it would be about 265
Mark as brainliest plz
The gross weekly sales at a certain super market are a Gaussian random with mean $2200 and standard deviation $230. Assume that the sales from week to week are independent.
A) Find the probability that the gross sales over the next two weeks exceed $5000.
B) Find the probability that the gross weekly sales exceed $2000 in at least 2 of the next 3 weeks.
Answer:
A) P(Z > 5000) = 0.0322
B) P( Y = 2 or 3) ≅ 0.9032
Step-by-step explanation:
From the given information;
Suppose the sales for the first week are denoted by X and the sales for the second week are denoted by Y.
Then;
X & Y are independent and they follow a normal distribution.
i.e.
[tex]XY \sim N(\mu,\sigma^2)[/tex]
[tex]XY \sim N(2200,230^2)[/tex]
If we set Z to be equal to X+Y
Then, [tex]Z \sim N(2 \times 2200,2 \times 230^2)[/tex] since two normal distribution appears normal
[tex]Z \sim N(4400,105800)[/tex]
So;
[tex]P(Z > 5000) = 1 - P( Z< \dfrac{x = \mu}{\sqrt{\sigma}})[/tex]
[tex]P(Z > 5000) = 1 - P( Z< \dfrac{5000-4400}{\sqrt{105800}})[/tex]
[tex]P(Z > 5000) = 1 - P( Z< \dfrac{600}{325.2691})[/tex]
[tex]P(Z > 5000) = 1 - P( Z< 1.844626495)[/tex]
[tex]P(Z > 5000) = 1 - P( Z< 1.85)[/tex]
From the Z - tables;
P(Z > 5000) = 1 - 0.9678
P(Z > 5000) = 0.0322
B)
Let Y be the random variable that obeys the Binomial distribution.
Y represents the numbers of weeks in the next 3 weeks where the gross weekly sales exceed $2000
Thus;
[tex]Y \sim Bin(3,p)[/tex]
where;
[tex]p = 1 - P( Z < \dfrac{2000-2200}{230})[/tex]
[tex]p = 1 - P( Z < \dfrac{-200}{230})[/tex]
p = 1 - P( Z < - 0.869565)
From the Z - tables;
p = 1 - 0.1924
p = 0.8076
Now;
P(Y ≥ 2) = P(Y = 2) + P( Y =3 )
Using the formula
[tex]P(X = r ) = ^nC_r \times p^r \times q ^{n-r}[/tex]
[tex]P( Y = 2 \ or \ 3) =^ 3C_2 \times 0.8076^2 \times ( 1- 0.8076) ^ {3-2} + ^ 3C_3 \times 0.8076^3 \times ( 1- 0.8076) ^ {3-3}[/tex]
[tex]P( Y = 2 \ or \ 3) =\dfrac{3!}{2!(3-2)!} \times 0.8076^2 \times ( 0.1924) ^ 1 + \dfrac{3!}{3!(3-3)!}\times 0.8076^3 \times ( 0.1924) ^ {0}[/tex]
[tex]P( Y = 2 \ or \ 3) =0.3764600911 +0.526731063[/tex]
P( Y = 2 or 3) = 0.9031911541
P( Y = 2 or 3) ≅ 0.9032
Don’t mind this look at pic
Can someone pls help me ?
Please help, Using The graph answer the following questions
Which pair of measurements is not equivalent
Answer:
where are the measurements?
Step-by-step explanation:
what is 7one-half ÷ 3three-fourths
Answer:
Half of three fourths is 3/4 divided by 2.
As 2 is 2/1 3/4 divided by 2 is equivalent to 3/4 * 1/2.
This will give you the answer 3/8.
Half of three fourths is 3/8.
Step-by-step explanation:
Answer: 14/15.
Step-by-step explanation:0.9333333333 but in decimal form its 14/15
There’s 6/7 of a pizza. How many friends can I share if I give each 1/14 of pizza?
Answer:
12 (who has 12 friends?)
Step-by-step explanation:
make the fractions, I think its called a denominator, the same.
6/7 tums into 12/14
so if you give each friend 1/14 then you could feed 12 friends
this answer only works if you're not eating as well
f(x)=5x2−3x−1 and g(x)=2x2−x+3
f(x)+g(x)=
Question 18 options:
3x2−4x−4
3x2−2x−4
7x2+4x+3
7x2−4x+2
Answer:
f(x) + g(x) = 7x² - 4x + 2
General Formulas and Concepts:
Algebra I
Combining Like TermsStep-by-step explanation:
Step 1: Define
f(x) = 5x² - 3x - 1
g(x) = 2x² - x + 3
Step 2: Find f(x) + g(x)
Substitute: f(x) + g(x) = 5x² - 3x - 1 + 2x² - x + 3Combine like terms (x²): f(x) + g(x) = 7x² - 3x - 1 - x + 3Combine like terms (x): f(x) + g(x) = 7x² - 4x - 1 + 3Combine like terms (Z): f(x) + g(x) = 7x² - 4x + 2Applications of Quadratic Functions. Please help! Ignore C. I keep getting imaginary numbers. Am I supposed to get imaginary numbers? 9 points!
Answer:
Step-by-step explanation:
1.
a)
Find the vertex by completing the square to answer both a and b
d)
x-ints is when y=0
so use quadratic equation for
b^2-20b+200=0
a=1
b= -20
c=200
But notice these imaginary numbers means 0 x intercepts.
PLEASE HELP I WILL BRAINLIST PLEASE
Answer:
I pretty sure its B.
Step-by-step explanation:
Ana sells blueberry and marble frosted doughnuts. She sells the blueberry doughnuts for P2000
each and the marble frosted doughnut for 21.50 each on Monday. Ana sold 72 doughnuts and earned P1488.00. How many blueberry doughnuts and marble frested doughnuts did she sell
that day?
the perimeter of a rectangle is 50 metre and breadth is 9 metre find its length
Answer:
the answer is 18 thanks to ask help
the vertical change between two points is called___.
A. up
B. down
C. run
D. rise
Answer:
D
Step-by-step explanation:
The term "rise over run" is frequently used when talking about slope. It means the vertical distance over the horizontal distance, so the answer is D, rise.
I don’t know where the point is please help me.
How do I substract 7/10 minus 3/15
Answer: 0.5
Step-by-step explanation:
To reduce a fraction: divide the numerator and denominator by their greatest common factor, GCF.
Fraction: 7/10 already reduced to the lowest terms.
The numerator and denominator have no common prime factors.
Their prime factorization:
7 is a prime number;
10 = 2 × 5;
gcf (7; 2 × 5) = 1;
Answer:
First you have to find the common denominator
Next you take what you did to the bottom you gotta do to the top like if you 30 does into both them you multiple 3 times 2 cause you did that to 15 and multiply 7 times 3
Then you subtract
Step-by-step explanation:
Jules goes on a hike that will last five hours total she brings 12 cups of water after an hour she has drunk 3 cups of water at that rate. How many cups would use need for all 5 hours
Answer:
15
Step-by-step explanation:
If she drinks 3 per hour and she will be there for 5 hours (3 x 5 = 15) than he will need 15 cups of water and not 12.
A diver was 5 feet below the surface of a lake. She dove to a depth of 80 feet.
15 feet
80 feet
Which integer represents the change in the diver's depth?
A.-85
B.-75
C.75
D. 85
what is 3x+(4x-6)=8x+1
Answer:
Standard form:
−x − 7 = 0
Factorization:
−(x + 7) = 0
Solutions:
x = −7
Step-by-step explanation:
hope it helps
Use the discriminant to determine the number of real solutions to the quadratic equation.
70w2 - 12w + 1 = 0
What is the number of real solutions?
Answer:
There are two real and different roots
Step-by-step explanation:
The discriminant is given by b²-4ac
(-12)²-4(70×1)
144-280
136
Now 136>0
Let D = discrimination
Rules:
If D > 0, there are 2 real number solutions.
If D = 0, there is only 1 real number solution.
If D < 0, there are 2 imaginary solution.
Given 70w2 - 12w + 1 = 0, b = -12, a = 70 and c = 1.
D = b^2 - 4ac
D = (-12)^2 - 4(70)(1)
D = 144 - 280
D = -136
Our D value is less than 0.
Our case is D < 0.
This means the given quadratic equation has 2 imaginary solutions.
Can you help me please
Please need help on this one
Answer:
45°
Step-by-step explanation:
The base angle are the same measure and since one angle is already 90° the remaining two are 45°. They have to equal up to 180. 90 + 45 + 45 = 180.
Hope this helps ya!!
True or false
3÷7= 3/7?
Answer:
true
Step-by-step explanation: