Answer: Answer is
price of the car before the discount
Step-by-step explanation:
11 blue eyed children for every 15 brown
eyed children. Write two ratios to represent
this information,
Answer:
the ratio would be 2:2 because there is two heterozygous brown eyed children and 2 are full recessive blue for the phenotype and for the genotype it would be 2 Bb : 2 bb
Step-by-step explanation:
manufacturer of potato chips would like to know whether its bag filling machine works correctly at the 433.0 gram setting. It is believed that the machine is underfilling the bags. A 40 bag sample had a mean of 431.0 grams. A level of significance of 0.1 will be used. Is there sufficient evidence to support the claim that the bags are underfilled
Answer:
Since the calculated value of Z= -0.01871 does not lie in the critical region
Z ≥ Z∝ =± 1.28 we conclude that the null hypothesis is true and there is not sufficient evidence to support the claim that the bags are under filled.
Step-by-step explanation:
We formulate hypotheses as
H0: u < 433.0 against the claim Ha: u ≥ 433.0 ( one sided)
The significance level ∝= 0.1
Since the sample size n= 40 is greater then 30 z test is used.
Z = X`- u/ S/ √n
Z= 431.0- 433/ 676/√40
z= -2/106.8859
Z= -0.01871
The critical region is Z ≥ Z∝ =± 1.28 for one tailed test at alpha= 0.1
Since the calculated value of Z does not lie in the critical region we conclude that the null hypothesis is true and there is not sufficient evidence to support that the bags are under filled.
Which fact is related to 12 = 3 = 4?
I need help
Answer:
factors
Step-by-step explanation:
16. What kind of angle is shown in the image below?
A. Right
B. Obtuse
C. Straight
D. Acute
Answer: C
Step-by-step explanation: straight line=straight angle
5TH GRADE LEVEL QUESTION. PLEASE LOOK AT PHOTO AND ANSWER GIVING BRAINLIEST
Answer:
C.
Step-by-step explanation:
The equation that can be used to determine r is r = 3/.5 (1/2)
Hope this helps :)
Find the LCM of 18 and 45 using prime factorizations.
Answer:
The L.C.M. of 18 and 45 is 90.
Answer:
90
Step-by-step explanation:
18/3
6/3
2/3
45/3
15/3
5/3
Take 5/3 and 2/3
5*3*2*3
90
The name for the expression 3 divide 13 is
Answer:
I believe it is a fraction. Hope I'm right have a great day/night
Answer:
is =^3 54..............
Xavier start 5 feet away from the motion detector. He then walks away from the detector at a rate of 0.5 ft./s for four seconds. He remains still for two seconds, and then walks towards the motion detector at a rate of -2 ft./s for three seconds. How far in feet Xavier from the motion detector when he finishes his walk?
Answer:
1 ft away from the motion detector.
Step-by-step explanation:
To calculate Xavier's distance we can assume that the motion detector would be represented as 0ft. Now we simply need to create the arithmetic expression for every step/action that Xavier performed. Finally, we would solve the expression to calculate Xavier's total distance from the motion detector.
5ft + (0.5ft * 4) + (-2ft * 3)
5ft + 2ft - 6ft
1ft
Finally, we can see that Xavier is 1 ft away from the motion detector.
Khalid is 56 years old. Cathleen is 6 years older than Brody. The sum of Cathleen's and Brody's ages is half Khalid's age. How old is Cathleen?
Answer:20
take 56 divide by 2 and add 6 to the out-com
3a - b; a = 4 , b = 6
Please help me thanks so much?!?!
Answer:
200
Step-by-step explanation:
first convert 1 l to ml = 1000 ml
1000 divided by 5 spoons = 200
A company wants to test clear deck sealants for weather resistance. Three brands of sealants will be tested using 60 pieces of decking wood. The company wants to create treatment groups of 20 pieces of wood each, and decide to randomize using slips of paper. Select all the approaches that would result in comparable treatment groups. The numbers 1, 2, and 3 are each written on 20 slips of paper, and the slips are placed in a hat and shaken well. The top piece of wood from a stack is selected and a slip of paper is drawn from the hat. That piece of wood is assigned to the group number on the slip. The slip of paper is returned to the hat. This continues until all pieces of wood have been assigned to a group. The numbers 1, 2, and 3 are written on three slips of paper, put into a hat, and shaken well. A slip is drawn and the first 20 pieces of wood on the stack are assigned to the group number on the slip. Another slip is drawn and the next 20 pieces of wood are assigned to that group. The remaining pieces of wood are assigned to the remaining group. Each piece of decking wood is assigned a number from 1 to 60. The numbers 1–60 are written on slips of paper and placed in a hat and shaken well. Twenty slips are drawn, shaking the hat after each slip of paper is drawn, and the pieces of wood corresponding to those numbers are placed in group 1. Twenty more slips are drawn in the same way, and the pieces of wood corresponding to those numbers are placed in group 2. The pieces of wood corresponding to the numbers on the remaining slips are placed in group 3. The numbers 1, 2, and 3 are each written on 20 slips of paper (20 for each number) and the slips are placed in a hat and shaken well. The top piece of wood from a stack is selected, and a slip of paper is drawn from the hat. That piece of wood is assigned to the group number on the slip. The slip of paper is not returned to the hat. This continues until all pieces of wood have been assigned to a group.
Answer:
The Answer is C and D
Step-by-step explanation:
Just did it
The diagonal length of a rectangle is 21 inches, and the length of the rectangle is 8 inches.
Which measurement is closest to the width of this rectangle in inches?
13 in.
19.4 in.
22.5 in
29 in.
Plz help
29 inches.
_________________
Which is the graph of g(x) = 2^x-1 + 3?
Answer:
gave no examples.. this is what I got
Step-by-step explanation:
A pet store is selling dogs for $140 and cats for $70. If 28 pets were sold and they made $3,360. Write a system of equations that matches the situation
Answer:
x+y=28
70x+140y=3360
8 cats, 20 dogs were sold
Step-by-step explanation:
Let x=cats y=dogs
We know that a total of 28 pets were sold which means that
x+y=28
We also know that they made 3360 which means that
70x+140y=3360
It doesn't really say if you need to solve this but I will anyways
We use the first equation (x+y=28) and subtract 28 and y from both sides to get
x-28= -y we can then divide both sides by -1 so y can be a positive
-x+28=y
This is what y equals in terms of x and so we can plug this in for y in the second equation
70x+140(-x+28)=3360
Distribute the 140 and get
70x-140x+3920=3360
Add like terms and subtract 3920 to get
-70x=-560
divide both sides by -70 and get
x=8
We now know that 8 cats were sold and can plug this value into any equation to solve for y ( I will be using the first one because that's easiest)
8+y=28
subtract 8 and get
y=20
A system of equations that matches the situation is:
1) d + c = 28.................Equation 1
2)140d + 70c = 3360............Equation 2
This question has to do with Algebraic equations.
Let's represent
Number of dogs = d
Number of cats = c
A pet store is selling dogs for $140 and cats for $70. If 28 pets were sold and they made $3,360.
We have two algebraic systems of equations for the above statements
1) d + c = 28.................Equation 1
2) $140 x d + $70 x c = $3,360
140d + 70c = 3360............Equation 2
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Factor the polynomial:
462 + 15b - 4
Answer:
15([tex]\frac{458}{15}[/tex]+b) or
15(b+[tex]\frac{458}{15}[/tex])
Step-by-step explanation:
First we can subtract the 4.
458 + 15b
Now we need to find the GCF, but they do not share any kinds of factors together. This might look ugly, but it is what it is. We factor out 15 to get b by itself.
15([tex]\frac{458}{15}[/tex]+b) or
15(b+[tex]\frac{458}{15}[/tex])
he label on a juice carton says there are 50 calories in a 4-ounce serving of juice.
Arthur drinks 12 ounces of juice.
How many calories will he consume?
48 calories
58 calories
150 calories
200 calories
Answer:
Step-by-step explanation:
150
Select all of the options that are a subcategory of rhombus.
1) rectangle
2) trapezoid
3) kite
4) square
Answer:
The correct answers are 1 and 4. Rectangle and square.
Step-by-step explanation:
A rhombus is a four-sided geometric figure, which has the main characteristic that these four sides are equal to each other. They generally have a diamond shape, with four vertices pointing towards the four cardinal points.
The square, for its part, is a special type of rhombus, where not only its four sides are equal but also its angles, since they are four right angles.
1 1/4 gallons fill 5/6 of a bucket. how many gallons will it take to fill the entire bucket?
Help me please?? ????
Answer:
40 days
Step-by-step explanation:
8 × 5 = 40
[character limit pass]
Use a number cube to determine the theoretical probability of the event. Rolling a 2
Answer:
1/6
Step-by-step explanation:
A cube has six sides
Six probable outcomes
rolling a 2 can only happen on 1 of those outcomes
so 1/6
Answer:
1/6
Step-by-step explanation:
The Answer is 1/6
140% of what number is 39?
Provide an exact fraction answer.
Answer:
27.86 or 27 wholes 6/7
Step-by-step explanation:
Let the number be x
140% of x = 39
140x/100 = 39
140x = 3900
x= 3900/140
x = 27 wholes 6/7 or 27.86
I really need help with this Triangle problem
Answer:
30
Step-by-step explanation:
pythagoras theorem
x
[tex] {x}^{2} [/tex]
[tex] =225 \times 2 + 225 \times 2 \\ [/tex]
=900
x=30
pls help srsly plsssssssssss
Answer:
The answer is D
Step-by-step explanation:
3x_=12
6x_=24
**The blanks are 4**
9x_=45
12x_=60
**The blanks are 5**
5 and 4 are not equal.
There for the quantities are NOT proportional
Hope this helps!
A publisher reports that 55% of their readers own a laptop. A marketing executive wants to test the claim that the percentage is actually different from the reported percentage. A random sample of 280 found that 51% of the readers owned a laptop. Make the decision to reject or fail to reject the null hypothesis at the 0.05 level.
Answer:
We fail to reject the null hypothesis, we accept H₀
Step-by-step explanation:
Population proportion p₀ = 55 % p₀ = 0,55
Sample size n = 280
Sample mean p = 51 % p = 0,51 q = 0,49
n*p and n*q are both bigger than 10 therefore we can approximate the binomial distribution to a normal distribution
Test Hypothesis
Null Hypothesis H₀ p = p₀
Alternative Hypothesis Hₐ p ≠ p₀
Significance level is α = 0,05 but we have a two-tail test then
α/2 = 0,025
z(c) = - 1,96
Computing z(s)
z(s) = ( p - p₀ ) / √(p*q)/n
z(s) = ( 0,51 - 0,55 ) / √(0,51*0,49)/280
z(s) = - 0,04 * 16,73 / 0,5
z(s) = - 1,34
Comparing
z(s) and z(c)
- 1,34 < - 1,96
| z(s) | < | z(c)|
Then z(s) is in the acceptance region, we accept H₀
2) which of the following graphs have one or More solutions?
Blue:
Green:
Purple:
Pink:
Please help me I’ve been stuck on this since 9:00 am
Find the value of x.
Round to the nearest tenth.
14
8
X
19
x = [? ]°
Law of Cosines: c2 = a2 + b2 - 2ab cos C
Answer:
OK i will try to help if u can tell me what the complement of rolling a 3 on the die is
Step-by-step explanation:
A medical device company knows that 11% of patients experience injection-site reactions with the current needle. If 4 people receive injections with this type of needle, what is the probability that none of the 4 people get an injection-site reaction? 0.0001 0.3726 0.4400 0.6274
Answer: 0.6274
Step-by-step explanation:
Given: The proportion of patients experience injection-site reactions with the current needle : p=0.11
Sample size : n= 4
Let x be a binomial random variable that represents the people get an injection-site reaction.
Binomial probability formula: [tex]P(X=x)= ^nC_x p^x(1-p)^{n-x}[/tex]
The required probability : P(x=0)
[tex]=\ ^4C_0(0.11)^0(1-0.11)^4\\\\=(1)(1)(0.89)^4\\\\=0.62742241\\\approx0.6274[/tex]
Hence, the probability that none of the 4 people get an injection-site reaction = 0.6274
The probability that none of the 4 people get an injection-site reaction would be 0.6274.
How to find that a given condition can be modelled by binomial distribution?Binomial distributions consists of n independent Bernoulli trials.
Bernoulli trials are those trials which end up randomly either on success (with probability p) or on failures( with probability 1- p = q (say))
Suppose we have random variable X pertaining to binomial distribution with parameters n and p, then it is written as
[tex]X \sim B(n,p)[/tex]
The probability that out of n trials, there'd be x successes is given by
[tex]P(X =x) = \: ^nC_xp^x(1-p)^{n-x}[/tex]
A medical device company knows that 11% of patients experience injection-site reactions with the current needle.
If 4 people receive injections with this type of needle.
The proportion of patients who experience injection-site reactions with the current needle
p=0.11
Sample size : n= 4
Let a binomial random variable be x that represents the people who get an injection-site reaction.
Binomial probability formula:
P(X = x) = [tex]^nC_x p^x(1-p)^{n-x}[/tex]
The required probability :
P(x=0)
[tex]=\ ^4C_0(0.11)^0(1-0.11)^4\\\\=(1)(1)(0.89)^4\\\\=0.62742241\\\\\approx0.6274[/tex]
Hence, the probability that none of the 4 people get an injection-site reaction would be 0.6274.
Learn more about binomial distribution here:
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what is 9 x 34 and explain
Answer:
306. If you multiply 30 and 9 you will get 270, and if you add 4 * 9, which is 36, you will get 306.
Step-by-step explanation:
I hope that helped you out! :)
The Multiplication of 7 and 2 results to 14.
What is Multiplication?
The fundamental concept of repeatedly adding the same number is represented by the process of multiplication. The results of multiplying two or more numbers are known as the product of those numbers, and the factors that are multiplied are referred to as the factors. Repeated addition of the same number is made easier by multiplying the numbers.
We have to multiply 9 x 34.
So, we can split the number 34 as (30 + 4) then
First, 9 x 30 = 270
and, 9 x 4 = 36
Now, add the values
9 x 34
= 270 + 36
= 306
Learn more about Multiplication here:
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An engineer is designing a television screen. The screen is shaped like a rectangle with a diagonal of 34
inches. The ratio of the length of the rectangle to its width must be 15:8.
What is the length of the screen?
A. 30 in.
B. 23 in.
c. 32 in.
D. 15 in.
Answer:
30"
Step-by-step explanation:
length:width = 15:8
length = 15x
width = 8x
(15x)² + (8x)² = 34²
225x² + 64x² = 34²
289x² = 34²
x² = 34²/289
x = 34/17 = 2
length = 15x = 30 inches
