Answers
Answer:
straight line = 180°
2x+3x+5x= 180 combine like terms
10x=180
x=18
Related Questions
(W^2/x -3) / 10 •z when w=-6,x=1.2, and z = -6 /7
Answers
Answer:
21=121-2=11
Step-by-step explanation:
do step by step.
a survey of statistics students asked how much time they spent on a computer during a 24 hour period. The results of the survey are provided in the table. Identify the model class for the distribution.
Answers
Answer:
the answer is more than 241 because 0-60 minutes time 8 would be 480 but 241 time 2 is 482
The model class for the distribution is 0-60. Therefore, option A is the correct answer.
Given that, a survey of statistics students asked how much time they spent on a computer during a 24-hour period.
We need to identify the model class for the distribution.
What is the model class?The modal class is the class with the highest frequency. We know that the mode is the number or observation that most often appears. So, the modal class is the class in grouped data that contains the mode. That means the class that has the highest frequency is the modal class of the grouped data.
Now, from the given data table we can see the highest frequency is corresponding to the class 0-60.
The model class for the distribution is 0-60. Therefore, option A is the correct answer.
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Amy and Samiha have a hat that contains two playing cards, one ace and one king. They are playing a game where they randomly pick a card out of the hat four times, with replacement. Amy thinks that the probability of getting exactly two aces in four picks is equal to the probability of not getting exactly two aces in four picks. Samiha disagrees. She thinks that the probability of not getting exactly two aces is greater. The sample space of possible outcomes is listed below. A represents an ace, and K represents a king.
Required:
Who is correct, Amy or Samiha?
Answers
Answer:
Amy
Step-by-step explanation:
if there’s fewer of something compared to something else, it’s less likely for those to picked.
Help help please need homework
Answers
Answer:
√36<√26>√25
Step-by-step explanation:
please mark me as brainlest
What is the volume of the figure?
Answers
Answer: 1134 inches cubed
Subtract 5x−2 from −3x+4 .
2x + 2
−8x+6
8x−6
−8x+2
Answers
Answer: -8x +6
Step-by-step explanation:
- 3x +4 - (5x -2)
-3x +4 - 5x + 2
-8x + 6
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Answer:
-8x-6
Step-by-step explanation:
select another name for m<1
please help.
Answers
Answer:
<DAC
Step-by-step explanation:
label angles with their variable points
Someone please help me
Answers
Answer: Pretty sure it's A
Step-by-step explanation: If you find the square root of 282 you get 16.7
Answer:
It is A
Step-by-step explanation:
It is A because you need to take the square roots of every number the square root of 282 is 16.7985562
What does x equals (x+16)
Answers
Answer:
x+16=4x-5. {being vertically opposite angle}
16+5=4x-x
21=3x
or, 21/3=x
hence, x=7
Answer:
x = 7
Step-by-step explanation:
x + 16 = 4x - 5
16 + 5 = 4x - x
21 = 3x
21/3 = x
x = 7
y = mx + b
solve for m
solve for x
Answers
Answer:
mx=b-y
take like terms
x=b-y/x
HELP ASAP (MAX PTS) ILL GIVE BRAINLIEST
Answers
Domain is the x values and range is the y values.
Domain: (-5,-4, 0,1,3,4)
Range: ( 0,1,2,3,5)
Check (24, 144, 145) is a Pythagorean triplet
Answers
Answer:
Step-by-step explanation:
The given triplets are (16,63,65) . Let us assume 16 as the smallest even number, then it should be equivalent to 2m . From the above result we can say that triples (16,63,65) is a Pythagorean triplet. The given triplets are (24,144,145)
find the exact interest on a loan of $32,400 at 9% annually for 30 days
Answers
Answer:
G79URIFFJ8FJV88888RU8FF
Step-by-step explanation:
Find f(-2) for
the function
below.
f(x) = 1/8 x 5^x
Answers
Answer:
f(-2) = 0.005
Step-by-step explanation:
f(x) = 1/8 x 5^x
f(-2) = When x in the function of f(x) is -2.
f(-2) = 1/8 x 5^-2
f(-2) = 1/8 x 0.04
f(-2) = 0.005
PLS HELP EN UNDERSTAND THIS
Answers
Answer:
-5.5x+5.8
Step-by-step explanation:
To do this you need to remove the parenthesis and subtract like terms only (-3.6x - 1.9x) and the same thing for the other like terms.
how many times will the graph of y=3x^2-10 intersect the x axis
Answers
Answer:
2
Step-by-step explanation:
The discriminant is positve
discriminant- the quanity that depends on the coefficients and multiple properties of its roots
show the solution 4-2x>7+x
Answers
Answer:
x < -1
Step-by-step explanation:
Which of the following statements are true?
A) If two angles form a linear pair, then the angles are supplementary.
B) If two angles are right angles, then the angles are complementary.
C) If two angles have the same measure, then the angles are congruent.
D) If two angles are supplementary, then the angles are acute.
Answers
Answer:
There are two statements that are correct, A and C.
Which expression shows the result of applying the distributive property to 3(1/5x−1/7)?
3/5x+3/7
−3/5x+3/7
−3/5x−3/7
3/5x−3/7
Answers
Answer:
d. 3/5x−3/7
Step-by-step explanation:
Use distributive property.
3(1/5x−1/7)(3×1/5x) - (3×1/7)3/5x - 3/7∴ choice d. 3/5x−3/7 is correct.
Please can someone help much appreciated .
Answers
Answer:
23/6
Step-by-step explanation:
23
6
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Compare each pair of fractions. Use <, =, or >.
2/3____5/8
Answers:
A. >
B. <
C. =
Answers
Answer:
>
2/3 is bigger than 5/8 because 5/8 is split into smaller portions
Step-by-step explanation:
hope this helps
Question 3 (Percentage)
3.1.
(2)
A student answered 45 problems on a test correctly and received a
grade 90%. How many problems were on the test, if all the problems were worth the same number
were worth the same number of marks? (Round to the nearest whole
number)
Explain what is the difference between fractions and percentages
and also state the relationship they have with each other
3.2.
(3)
3.3
(5)
40% of the 7920 visitors to an amusement park were children. 25% of
these children and 1/3 of the adults were repeat visitors. How many
percent of the visitors were visiting the amusement park for the first
time?
3.4
(4)
Percentage is not taught in foundation phase level. However, a
primary school has both foundation phase and intermediate phase.
If you were to be asked to teach a grade 4 level to substitute for an
absent teacher who was supposed to introduce the concept of
percentage to the grade 4 class using the topic already taught in
foundation phase. Give a brief description on how you will introduce
the concept of percentage using diagrams,
Te to search
13°C Rain showers
Answers
Answer:
A student answered 45 problems on a test correctly and received a
grade 90%. How many problems were on the test, if all the problems were worth the same number
were worth the same number of marks? (Round to the nearest whole
number)
100/90 * 45 = 50
-------------------------------------------------------------------------------------------------------------
Explain what is the difference between fractions and percentages
and also state the relationship they have with each other
The numbers which are decimals by nature can be represented in the form of fractions. For example, 0.5 can also be written as 5/10. ... Percentages refer to decimal numbers to the base 100. These are represented by a % (percent sign).Since a percent is a ratio a ratio can be written as a fraction. This means any of these forms can be converted to any of the others.
-----------------------------------------------------------------------------------------------------------
40% of the 7920 visitors to an amusement park were children. 25% of these children and 1/3 of the adults were repeat visitors. How many percent of the visitors were visiting the amusement park for the first time?
Total number of visitors = 7920
Find the number of children:
Children = 40% of 7920
Children = 0.4 x 7920
Children = 3168
Find the number of adults:
Adult = 7920 - 3168 = 4752
Find the number of repeated visitors that are children:
Repeated visitors = 25% x 3168
Repeated visitors = 0.25 x 3168
Repeated visitors = 792
Find the number of children that are visiting for the first time:
First time visitors = 3168 - 792 = 2376
Find the number of repeated visitors that are adult:
Repeated visitors = 1/3 x 4752
Repeated visitors = 1584
Find the number of adults that are visiting for the first time:
First time visitors = 4752 - 1584 = 3168
Find the total number of first time visitors:
Total number of first time visitors = 3168 + 2376 = 5544
Answer: There are 5544 visitors that are visiting for the first time
Put x + 2y=4 into slope-intercept form? y=mx+b format
Answers
Answer:
[tex]y=-\frac{1}{2} x+2[/tex]
Step-by-step explanation:
1. First we want to get the y all by itself
So we would subtract x from both sides and get [tex]2y=-x+4[/tex]
2. Then we would divide 2 from both sides
Answer: [tex]y=-\frac{1}{2} x+2[/tex]
An employee earns $10.75 per hour. Write an equation that represents the total earnings in a week, y, as it relates to time in hours? Use your equation to find the total earnings for a 40 hour week.
Answers
Answer:
40 X 10.75= 430
10.75/2= 5.375 round up 5.38
10.75 + 5.38 = 16.13
16.13 X 10 = 161.30
430+161.30= 591.3
A man placed $10,600 in a fixed deposit for 8 years at 6% per annum.
a) Calculate the total amount received at the end of the period under simple interest.
b) Determine the total amount received at the end of the period under compound interest.
c) State the difference in the interest received
Answers
Answer:
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Tabular representations for the functions f, g, and h are given below. Write g(x) and h(x) as transformations of f(x).
Answers
9514 1404 393
Answer:
g(x) = f(x -1)
h(x) = f(x) +4
Step-by-step explanation:
g(x)We notice that the output values correspond to the output values of f(x), but the input to f(x) is 1 less than the corresponding input to g(x). For some given value of x, ...
g(x) = f(x -1)
__
h(x)The input values correspond to those for f(x), but the output values are all 4 more than for f(x).
h(x) = f(x) +4
Elliott states that he absolute value and opposite of a number are the same thing. Is Elliott correct? Explain.
Answers
Answer:
Elliot is incorrect
Step-by-step explanation:
Let's take an example: 2
Absolute value of 2 = |2| = 2
But the opposite of 2 = -(2) = -2
But 2 ≠ 2, so Elliott is incorrect.
The opposite of a number changes the sign from - to +, or + to -. Absolute value changes the sign of a number from - to + and keeps + as +.
-Chetan K
Answer:
No
Step-by-step explanation:
The absolute value of a number is the distance from 0. Distance is always positive, so the absolute value of a number is that number but positive. Thus, the absolute value of |2| is still 2. However, the opposite of a number is that number on the opposite side of 0. Therefore, the opposite of 2 is -2. To find the opposite of a number just flip the sign.
So, these are different because the absolute value is always positive while the opposite can be either sign.
Find the dimensions of a rectangle whose perimeter is 30 meters and whose area is 56 square meters.
Answers
Answer: 8 and 7
Step-by-step explanation:
8 multiplied by 7 equals 56
8+8+7+7 equals 30 which is the perimeter
:)
The dimensions of the rectangle whose perimeter is 30 meters and whose area is 56 square meters are 7 meters and 8 meters.
What do we mean by the area of a surface?The area of a surface is the total space occupied by the two-dimensional cross-section.
What do we mean by the perimeter of an object?The perimeter of an object is the total length of its boundary.
How do we solve the given question?We are asked to find the dimensions of a rectangle whose perimeter is 30 meters and whose area is 56 square meters.
Let the length and breadth of the rectangle be l meters and b meters respectively.
We know that,
Perimeter of a rectangle = 2(length + breadth) = 2(l + b)
∴ 30 = 2(l + b)
or, 2(l + b) = 30
or, l + b = 15
or, b = 15 - l ...(i)
We know that,
Area of a rectangle = length*breadth = l*b
∴ 56 = l*b
or, l*b = 56
Substituting the value of b = 15 - l from (i) in the above equation, we get:
l(15 - l) = 56
or, 15l - l² = 56
or, l² - 15l + 56 = 0
or, l² - 8l - 7l + 56 = 0
or, l(l - 8) -7(l - 8) = 0
or, (l - 7)(l - 8) = 0
By zero-product law,
Either l - 7 = 0 ⇒ l = 7
Or, l - 8 = 0 ⇒ l = 8.
Substituting these values of l in (i),
b = 15 - l
∴ Either, b = 15 - 7 = 8
Or, b = 15 - 8 = 7.
In both cases, the dimensions of the rectangle are 7, and 8.
∴ The dimensions of the rectangle whose perimeter is 30 meters and whose area is 56 square meters are 7 meters and 8 meters.
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Rlly important, is this the correct length?
Answers
Answer: yes
Step-by-step explanation: 14*12*5=840
the formula for volume is Lenght*widht*height
If i= -1, what is the value of i3?
O-1
Ο i
O 1
O -i
Answers
Answer:
I dont think this question is formated correctly. i does not equal to -1. However, If you are wondering about i^-3. it is -i. Otherwords it is D. Hope this helped.