Answer:
C.
Step-by-step explanation:
4 x 2.8 x 2 x 2 = 44.8
Solve the following system using substitution:
x - 4y = -1
-3x +8y = -2
Answer: ( 4, 5/4)
Step-by-step explanation: x = 4, y = 5/4
PLZZ HELP WITH THIS HOMEWORK
There are 60 sheets of papers in each pack. How many packs are needed to arrange for 5432 sheets?
Answer:
90 8/15 hope this helps byee
Find the coordinates of point M, that partitions the directed line segment SY from S(4,2) to Y(-4,-6) in a ratio of 1/3.
Answer:
the coordinates of point M = (2,0)
Step-by-step explanation:
Given;
point S along the segment, = S(4,2)
point Y along the segment, = Y(-4, -6)
ratio of the partition = ¹/₃
total ratio = 1 + 3 = 4
The midpoint of segment SY is calculated as follows;
[tex]mid-point (o) = \frac{x_1 + x_2}{2} ,\ \frac{y_1 + y_2}{2}\\\\ mid-point (o) = \frac{4 + (-4)}{2} , \ \frac{2+ (-6)}{y} \\\\mid-point (o) = \frac{0}{2} , \ \frac{-4}{2} \\\\mid-point (o) = (0, \ -2)[/tex]
The coordinates of point M is calculated as follows;
point M divides the segment into 4 equal parts with point O as the mid-point.
M
S--------------|-------------------O-------------------|-------------------Y
|SO| = |OY|
[tex]The \ mid-point \ of \ SO = M\\\\Point \ S = (4,2) \\\\Point \ O = (0,-2) \\\\Point \ M = \frac{4 + 0}{2}, \frac{2 - 2}{2} \\\\ Point \ M = 2, 0 \\\\M = (2,0)[/tex]
Therefore, the coordinates of point M = (2,0)
the melting point of ice + common salt =
Answer:
Step-by-step explanation:
Ice forms when the temperature of water reaches 32 degrees Fahrenheit (0 degrees Celsius). When you add salt, that temperature drops: A 10-percent salt solution freezes at 20 °F (-6 °C), and a 20-percent solution freezes at 2 °F (-16 °C). On a roadway, this means that if you sprinkle salt on the ice, you can melt it.
In parallelogram NPQR if NS=20 find SQ
Answer:SQ=20
Step-by-step explanation:
NS=20
NS=SQ
SQ=20
The value of SQ is 20
What is parallelogram?The Greek word "parallelogram on," which means "bounded by parallel lines," is where the term "parallelogram" comes from. As a result, a parallelogram is a quadrilateral with parallel lines defining its boundaries. The opposite sides are parallel and equal in this shape. There are three main classes of parallelograms: square, rectangle, and rhombus each have their own distinct characteristics.
Given a parallelogram NPQR
and NS = 20 to find the value of SQ
since S is the intersecting point of diagonals of parallelogram,
so NS = SQ
The two diagonals cut across one another. The parallelogram is divided into two congruent triangles by each diagonal. The sum of the squares of a parallelogram's diagonals and all of its sides is the same.
SQ = 20
Hence for parallelogram SQ = 20.
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The complete question is attested in image.
PLEASE HELP (12 YEAR OLD MATH)
Answer:
1.5 I think?
Step-by-step explanation:
it was counting by 6 but then skipped to 26 so I assume it is 1.5
How much time is between 2:30 pm and 4:15pm?? I need an answer quick!!
Answer:
Step-by-step explanation:
First do 4 -2 to get 2. Then do 30-15 to get 15. It’s 2:15.
You can also do this on a calculator by doing 4.15-2.30. You get 1.85
Remember that time is only up to 60 So you have to subtract 15 from 85 to get 60. So it’s 2 hours and 15 minutes. Hope this helps!
5. To determine the number of kids under the age of 5 in your neighborhood, you sit outside of
your apartment and count the number of kids under 5 that pass by between the hours of 7AM
and 8AM. Do you think this method will provide you with a representative random sample?
Explain your reasoning.
Answer:
It will not provide a representative random sample.
Step-by-step explanation:
This is because kids under five will only leave the house if they are going to the park or doing something with there parents. They don't go to school either so they most likely won't leave during the hours of 7 AM and 8 AM.
Hope this helps! :D
- Luna
Solve each problem.
29. It is 385 miles from Al's house
to his grandparents' house. It
takes Al's family 7 hours to
drive there. What is their rate
of speed in miles per hour?
Answer:
rate is 55 i think
Step-by-step explanation:
take 385 ÷ 7 and you get how far they travel in one hour
How do you solve this proof?
Answer:
Angle = A
A7 = A4 (Alternate interior angles)
A14 = A11 (Vertically opposite angles)
A11 = A6(Corresponding angles)
A4 = A14 (Given)
From this, we can get A6 = A4
A6 and A4 are alternate angles and are equal. So c and d are parallel.
A7 + A10 = 180 (Linear pair of angles) - ( 1 )
A13 = A10(Alternate interior angles)
Putting A13 in place of A10 in ( 1 ),
A7 + A13 = 180
Hence proved
Ask doubts if any
Alan worked for 2 58 hours doing yard work. He spent 1 12 hours raking leaves. He spent the rest of the time cleaning out the flower bed. How long did he spend cleaning out the flower bed?
1 13/24
Ignore this btw that is the answer i’m just writing this cause it says i have to write 20 letters-
can someone help me asap
Answer:
so 414 so the 4 in the hounded coloum
1011 the one is in the tenths coloum
does this help you work out the over two
Step-by-step explanation:
what is the value of 9 1/2
Answer:
9.5
Step-by-step explanation:
Is that what you mean by value?
I need a better explanation
Answer:
Step-by-step explanation:
It is nine and a half. What do you exactly mean by value?
16
VO
What is the volume of a box that will hold exactly 567 of these cubes 1/3
What is the positive solution to this equation? 4x^2+ 12x = 135 Record your answer and fill in the bubbles on your answer document.
Answer:
[tex]\frac{9}{2} or 4.5[/tex]
Step-by-step explanation:
4x^2+ 12x = 135
D=b²−4ac=122−4(4)(−135)=144+2160=2304=48²
[tex]x_{p}= \frac{-12+48}{8} =\frac{36}{8}=\frac{9}{2}=4.5[/tex]
A group of 25 students is asked which of football or rugby they play regularly.
• 10 say they play both.
15 say they play rugby.
4 say they do not play either of the sports.
.
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ח
R
a) Complete the Venn diagram.
The universal set, &, contains all of the
25 students.
[3]
b) One of these students is chosen at random.
What is the probability that this person plays football?
Answer:
a) see explanation
b) 40%
Explanation:
a) sorry, i can't specifically help with this one unless you attach a picture of the venn diagram. but the way venn diagrams work is that you draw several circles, each representing a trait (i.e. plays rugby). circles will overlap if someone has more than one trait (i.e. plays both sports).
b) the probability is 10 ÷ 25 × 100% = 40%.
i hope this helps! :D
A stack of boards is 24 inches high.The thickness of each board is 3/8 inch. How many boards are in the stack?
Answer:
64 boards:)
Step-by-step explanation:
Help please! Someone who knows the answer.
Answer:
A = 140° B = 30° C = 10°
Step-by-step explanation:
3x + 135 = 180
3x = 45
x = 15°
2 X 15 = 30
1 X 15 - 5 = 10
Witch equation is true when the value of x is -12?
A:1/2x + 22 = 10
B:15 - 1/2x = 21
C:11 - 2x = 17
D:3x - 19 = -17
Answer:
please the answer is D
I'm very interested in the question
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
Answer:
A
Step-by-step explanation:
It will always go down if you put more wait.
Can I have Brainliest
is there anyone available to help me with my math for a little while, it's 10th grade geometry and I just need help, too many people are answering my questions with just bring them answers, or extremely inappropriate answers and I need actual help
Answer:
yes I can help you and I can answer your questions!
What is -1/2 (-5/6 plus 1/3) simplified
Answer:
0.25 or 5/12 - 1/6
Step-by-step explanation:
-1/2(-5/6+1/3), do PMDAS. (-5/6) = -0.833 (repeated) and (1/3) = 0.333 (repeated) and you add them both (-0.833 + 0.333) = -0.5 and -1/2 = -0.5 and when you multiply them both it would equal 0.25. or another explanation for the answer is 5/12 = 0.41666666666 and 1/6 = 0.16666666666 and when you subtract them both you get 0.25, I hope this was helpful.
A sports marketing company is interested in how many hours teenagers in a town spend watching sports. They randomly select 40 teenagers in this town and ask how many hours per week they spend watching sports. The mean amount is 6.25 hours with a standard deviation of 4.33 hours. Which of the following is the 90% confidence interval for the true mean amount of time teenagers from this town watch sports?
Find the t-table here.
(4.396, 8.104)
(4.865, 7.635)
(5.097, 7.404)
(5.245, 7.256)
Answer:
C. (5.097, 7.404)
Step-by-step explanation:
EDGE 2020
The 90% confidence interval for the true mean amount of time teenagers from this town watch sports is (5.097, 7.404).
What is Statistics?Statistics is the discipline that concerns the collection, organization, analysis, interpretation, and presentation of data.
The formula for the confidence interval is:
CI = x ± tα/2 × (s/√n)
where x is the sample mean,
s is the sample standard deviation,
n is the sample size, and
tα/2 is the t-value with (n-1) degrees of freedom and a confidence level of 90%.
From data (x) is 6.25 hours and
s= 4.33 hours.
We also know the sample size (n) is 40.
To find the t-value with (n-1) degrees of freedom and a confidence level of 90%, we can use a t-table.
For 39 degrees of freedom and a confidence level of 90%
Let us find that the t-value is 1.684.
Substituting the values we have into the formula, we get:
CI = 6.25 ± 1.684 × (4.33/√40)
CI = (5.097, 7.404)
Therefore, the 90% confidence interval for the true mean amount of time teenagers from this town watch sports is (5.097, 7.404).
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Quadrilateral ABCD is inscribed in circle O as shown below.
Answer:
Step-by-step explanation:
180 - m∠1
what is 6+(−434)+(−218) simplified?
Answer:
Hi! The answer to your question is -646
Step-by-step explanation:
☆*: .。..。.:*☆☆*: .。..。.:*☆☆*: .。..。.:*☆☆*: .。..。.:*☆
☁Brainliest is greatly appreciated!☁
Hope this helps!!
- Brooklynn Deka
State the slope and y-intercept for the graph of the equation -8x + y = -12.
Show your work!!
Answer:
Slope is 8 and Y-Intercept is -12
Step-by-step explanation:
Move the -8x over to the right side by adding it, You are now at
y=-12+8x
Move these around and you are now at
Y=8x-12
Answer:
Step-by-step explanation:
Remark
y must have a numerical coefficient of 1. This equation does. If it does not, then you must divide through by whatever is in front of the y.To read the slope, you must have x and its coefficient on opposite sides of the equal sign. So you get y = 8x - 12 when you add 8x to both sidesNext, the y intercept is found when x = 0y = 8x - 12y = 8(0) - 12y = - 12The y intercept is -12 or in point form (0, - 12)Answer
slope = 8
y intercept = - 12
heyy! can someone please help with all these questions:(( i don’t know it and it would be really nice if u helped!!! and please don’t make these excuses saying “where’s the picture” and “I can’t read what it says it’s too blurry” because I really work hard for these points :) so please don’t let me down, thank you so much and I hope you have the greatest day<33 stay safe and stay healthy! / I will post this non stop because no one is helping and just keep taking points away from me :( /
Answer:
1. 1/2 and 2/4
2. They are equivalent because it you put them in simplest form they are going to be equal
3. No
4. They are not equivalent because 1/8 and 1/5 isn't the same so they aren't going to be equal
hope this helps
have a good day :)
Step-by-step explanation:
is -51/5 rational or irrrational
HURRYYYYY PLEASEEEEE
Find the area of the circle. Use 3.14 for p.
Answer: B
Step-by-step explanation: