Angel got 4 problems wrong on a test of 50 questions. What percent of the questions did he get CORRECT
Answer:
12.5%
Step-by-step explanation:
Answer:
92%
Step-by-step explanation:
50-4 = 46
46/50 *100 = 92%
Write the equation of this circle in standard form.
Answer:
x² + y² = 16
Step-by-step explanation:
(x-h)² + (y-k)² = r² -- The standard form of equation of circle
(x-0)² + (y-0)² = 4²
________________________________
Answer:
The Red block is the answer
Step-by-step explanation:
Identify the response variable and whether the setting involves a single sample, a matched pairs, or two independent samples.
a. A chemist obtains a reference specimen of known concentration from the National Institute of Standards and Technology. She then makes 20 measurements of the concentration of this specimen with the new method and checks for bias by comparing the mean result with the known concentration.
b. Choose 40 romantically attached couples in their midtwenties. Interview the man and woman separately about a romantic attachment they had at age 15 or 16. Compare the attitudes of men and women.
c. Another chemist is checking the same new method. He has no reference specimen, but a familiar analytic method is available. He wants to know if the new and old methods agree. He takes a specimen of unknown concentration and measures the concentration 10 times with the new method and 10 times with the old method.
Answer:
1. single sample design
2. matched pairs
3. two independent samples.
Step-by-step explanation:
the response variable is known as the dependent variable, it is the variable that the researcher is interested i finding. the response variable is the x variable that responds to changes in the independent variable.
1.
In this question the researcher has only one sample that is the specimen. that is the reference specimen that she obtained. Therefore it is a single sample design.
the response variable here is the measurement of concentration.
2. In this question we have two pairs, men and women. The researcher is interested in comparing attitudes as she interviews them. so response variable is attitude or behavior
3. this is a 2 independent sample design. The researcher is using two different methods to test and their average is being compared.
Please help. This is due soon. Ty 
Answer:
3 dollars and 9 cents.
Step-by-step explanation:
From the question given above, the following data were obtained:
Total amount = 20 dollars
Amount for gift A = 9 7/10 dollars
Amount for gift B = 6 2/5 dollars
Amount for gift C =?
The amount of money she has left for gift C can be obtained as follow:
A + B + C = 20
9 7/10 + 6 2/5 + C = 20
Change to improper fraction
97/10 + 32/5 + C = 20
(97 + 64)/10 + C = 20
161/10 + C = 20
Collect like terms
C = 20 – 161/10
C = (200 – 161)/10
C = 39/10
Change to mixed fraction
C = 3 9/10 dollars
C = 3.9
C = 3 dollars and 9 cents
Therefore, Kathy had 3 dollars and 9 cent for gift C
PLEASE ANSWER ANY QUESTIONS ASAP THANK YOU SO MUCH
Look first at problem then answer 2-6
NO SPAM and EMERGENCY PROBLEM
I need help on question 7 :)
Answer:
D
Step-by-step explanation:
is the only choice that actually helps in solving the equation
Answer:
D. Substitute -3x+4 in for y in the first equation.
26) True/False (1 point): Vertical angles, corresponding angles, and supplementary angles are all congruent angle pairs.
Answer:
I say the answer will be true
Answer:
true
Step-by-step explanation:
3 7/10 + 5 3/4 + 3/4
Answer: 10.2 = 10 1/5
Step-by-step explanation:
Which is an equivalent expression for 6(2y+4)+5y?
please help
Answer:
17y+24
Step-by-step explanation:
simplify so the first step would be to multiply whats in the parentheses by the number outside in this case its 6 youd get:
12y+24+5y
then you simplify farther by adding like terms
17y+24
A farmer sells 9.8 kilograms of pears and apples at the farmer's market. 3/4 of this weight is pears, and the rest is apples. How many kilograms of apples did she sell at the farmer's market?
Answer:
2.45 kg of apples
Step-by-step explanation:
The farmer starts with 9.8 kg of fruit, and 3/4 of that is pears meaning the remaining 1/4 is apples. 9.8kg * 1/4 = 2.45 kg of apples
Members of a baseball team raised $1479.25 to go to a tournament. They rented a bus
for $800.50 and budgeted $45.25 per player for meals. Write and solve an equation
which can be used to determine p, the number of players the team can bring to the
tournament.
PLEASE HELP FAST ITS FOR A TEST
Answer:
The equation is: [tex]800.5 + 45.25p \leq 1479.25[/tex]
The team can bring at most 15 players to the tournament.
Step-by-step explanation:
They rented a bus for $800.50 and budgeted $45.25 per player for meals.
This means that the cost for bringing p players is given by:
[tex]C(p) = 800.5 + 45.25p[/tex]
Members of a baseball team raised $1479.25 to go to a tournament.
This means that:
[tex]C(p) \leq 1479.25[/tex]
So
[tex]800.5 + 45.25p \leq 1479.25[/tex]
[tex]45.25p \leq 1479.25 - 800.5[/tex]
[tex]p \leq \frac{1479.25 - 800.5}{45.25}[/tex]
[tex]p \leq 15[/tex]
The team can bring at most 15 players to the tournament.
There are 64 pretzels in a 16-ounce bag of chocolate-covered pretzels.
How many chocolate covered pretzels are there per ounce?
Answer:
64 pretzels in a 16 oz bag
1 oz will contain 64/16 pretzels = 4
5 oz will therefore contain 4 x 5 = 20 pretzels
Step-by-step explanation:
See here for a deeper explanation! ^^
Hopefully it helps :)
https://brainly.com/question/200543
Evaluate the expression if y=4.4 and z= 12
z2+ 8y
Answer: 59.2
Step-by-step explanation:
Take your equation
z2+8y
Now plug in the values given
(12)2+8(4.4)
24+35.2
59.2
Mr. Green drove 100 miles in 2 hours. He continues to drive at this same speed,
If he does not stop, how long will it take Mr. Green to drive 400 more miles?
A.5 hours
B.4 hours
C.8 hours
D.9 hours
How many solutions does x2 - 2x + 9 = 0 have and what type are they? Do NOT find the
actual solutions.
Answer:
3
Step-by-step explanation:
Can y’all help me on question 29?!
Answer:
Step-by-step explanation:
A number is twice the other number. The sum of four times the smaller number and three times the larger number is 10. Find the numbers.
Please teach me how to do this. I'll give 90 points.
Answer:
1 and 2
Step-by-step explanation:
Let the first number be x
Let the other number be y
x = 2y.....eqn 1
From eqn 1, the smaller number is y while the bigger number is x.
3x + 4y = 10.... eqn 2
Substitute x = 2y into eqn 2
3(2y) + 4y = 10
6y + 4y = 10
10y = 10
Divide both sides by 10
y = 10/10
y = 1
Substitute y= 1 into eqn 1
x = 2y
x = 2(1)
x = 2
Very much need some help ASAP !!
Answer:
D
Step-by-step explanation:
It cannot be Option A because the values are halve and there is nothing to distribute to them to make the values equal.
It's not option C because if you distribute 2y to each term in the parenthesis
you get -4[tex]y^{5}[/tex] + 6y³ + 4y². But where is the 8y² and -2y?
While Option B is equivalent, you can factor it out more and find the common factor of -2 to distribute among them as shown in option D
It is option D because distributing the -2y to each term solves to
-4[tex]y^{5}[/tex] + 6y³ + 8y² -2y.
Answer choices
36
32
28
Please help due now
Answer:
36 it should be pretty easy but no problem
What is the area? Write your answer as a fraction or as a whole or mixed number.
Answer:
81 or 20 1/4
Step-by-step explanation:
im not sure sorry
Answer:
[tex] \frac{1681}{4} [/tex]
or
[tex]105 \frac{1}{4} [/tex]
Step-by-step explanation:
[tex]10 \frac{ + 1}{ \times 4} [/tex]
10×4=40+1=41, that will be your numerator (number at the top of the fraction) and the denominator 4 will stay the same. (bottom number)
[tex] \frac{41}{4} [/tex]
the base and the height will remain the same.
Formula : base × height = Area
[tex] \frac{41}{4} \times \frac{41}{4} = \frac{1681}{16} [/tex]
16 goes into 1681 105 times remainder 1.
so as a mixed number it will be
[tex] 105 \frac{1}{4} [/tex]
The length of a rectangle is 10 cm, which is 1/3 of it's perimeter. Evaluate its perimeter
Answer:
Perimeter = 30 cm
Step-by-step explanation:
10 cm x 3 = 30 cm
the required perimeter of the given rectangle is 30 cm.
What is the perimeter?Perimeter is the measure of the figure on its circumference.
What is a rectangle?The rectangle is 4 sided geometric shape whose opposites are equal in length and all angles are about 90°.
Here,
The length of a rectangle is 10 cm, which is 1/3 of it's perimeter.
Length = 1/3 of perimeter
10 = 1/3 perimeter
perimeter = 3 × 10
perimeter = 30 cm
Thus, the required perimeter of the given rectangle is 30 cm.
Learn more about perimeter here:
brainly.com/question/6465134
#SPJ2
Can anyone help, I got really confused doing this problem, and I can’t find the answer for it.
Answer: The area is 45 square feet
Step-by-step explanation: Use the formula (base*height)/2. Base in this case is 15, while height is 6. (15*6)/(2) It should equal 45 square feet.
Answer:
45^ft
Step-by-step explanation:
1/2 B ×H
1/2(6)×15=45^ft
What is the median in the box plot?
50
60
70
80
90
100
Answer:75
Step-by-step explanation:
50,60,(70,80),90,100
70+80=150
150÷2=75
Therefore, 75is the median
Elementary school A has implemented an after-school sports program and the principal would like to know if the participants of the sports program are becoming more active in general, compared to students who are not participating in the program. So the principal collected data on overall physical activities throughout the week from a group of the sports program participants and a group of school A students not in the program. The most appropriate statistical test for data analysis would be:_______.
A. Paired-samples t test
B. Independent-samples t test
C. Pearson's correlation
D. One-sample t test
Answer:
B. Independent-samples t test
Step-by-step explanation:
The test here is to find out if the participants of the sports program are becoming more active in general when compared to students who are not participating in the program.
Now, this will involve taking sample from the two independent groups to determine if there is statistical evidence that one is more active than the other.
Thus, the best test to use in this case will be the Independent-samples t test
What is the radius of a circle whose equation is (x – 7)2 + (-10)2 = 4?
2 units
4 units
8 units
16 units
Answer:
Its A) 2 units
Step-by-step explanation:
A pipeline is placed diagonally across a rectangular field that is 25yd wide and 30yd long. How long is the pipeline, to the nearest yard?
Answer:
the pipe is 39.1 yards long.
Step-by-step explanation:
you would use pythagorean theorem (a²+b²=c²). plug the 25 in to the a² and plug the 30 in to the b² and figure out c² (it would look something like this 25²+30²=c²). to do that you need to square the 25² and the 30². the 25² would turn out to be 625 and the 30² would be 900 you would add them and get 1525. then you would squareroot 1525(
[tex] \sqrt{1525} [/tex]
) and get 39.05 and round it up and get 39.1 yards. dont forget to put the mesurements down
3t−18=4(−3−
4
3
t)
Answer: 0.034
Step-by-step explanation:3t-18=4(-3-43t)
3t-18=-12-172t
3t+172t=-12+18
175t/175=6/175
t=0.034
Mr. Young is buying a house. He can spend no more
than 29% of his income on monthly house payments.
If he earns $4,200 per month, what is the largest
monthly house payment he can make?
Answer:
The largest monthly house payment he can make is $1,218.
Step-by-step explanation:
In this question:
He spend at most 29% of his income on monthly house payments.
His monthly income is of $4,200.
What is the largest monthly house payment he can make?
0.29*4200 = 1218
The largest monthly house payment he can make is $1,218.