(16-4) x (3+7) =120
when we subtract 16 and 4 you get 12.
When we add 3+7 you get 10.
After multiplying them together we get 120.
What are parentheses those called?
parentheses
Parentheses are a pair of punctuation marks that might be most customarily used to feature extra nonessential information or an aside to a sentence. Parentheses resemble two curved vertical lines: ( ). An unmarried one of these punctuation marks is called a parenthesis.
How do you operate parentheses?Use parentheses to surround additional or supplemental data that clarifies or illustrates a point. Use parentheses to offer a digression or afterthought.Use parentheses to surround numbers or letters introducing objects in a list or outline.Learn more about parentheses here: https://brainly.com/question/1473593
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A boat traveled downstream a distance of 80 mi and then came right back. If the speed of the current was 7 mph and the total trip took 3 hours and 20 minutes, find the average speed of the boat relative to the water.
By converting the total trip time to minutes, using the formula for speed (distance/time), and using a system of equations representing the total trip speed when the boat is moving downstream and upstream, we can find the average speed of the boat relative to the water.
Explanation:To solve this problem, we first need to convert the total trip time to minutes to make calculations easier. Given in the problem, 3 hours 20 minutes equates to 200 minutes. Next, we should use the formula for speed, which is distance divided by time. We know that the total distance traveled by the boat is 80 miles downstream and 80 miles back, totaling 160 miles.
When moving downstream, the speed of the boat and the speed of the current both aid in the boat’s motion. Thus we have speed of the boat = speed of the boat in still water + speed of the current. However, when the boat is moving upstream, the speed of the current works against the boat's motion. Thus we have speed of the boat = speed of the boat in still water - speed of the current.
By using the system of these equations and the fact that total time equals total distance divided by the speed of the boat, we can find the speed of the boat in still water, which represents the average speed of the boat relative to the water.
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y=1x-4 in standard form
What is 630 rounded to the nearest ten?
In an attempt to reduce the growth of its population, China instituted a policy limiting a family to one child. Rural Chinese suggested revising the policy to limit families to one son. Assuming the suggested policy is adopted and that any birth is as likely to produce a boy as a girl, and the successive births are independent, explain the following:
A) What would be the average family size?
B) What would be the ratio of newborn boys to newborn girls?
How do I write 19.4 in expanded form
To write 19.4 in expanded form, you can break down the number into its place values. The digit 1 is in the tens place, the digit 9 is in the ones place, and the digit 4 is in the tenths place. Therefore, 19.4 in expanded form is 10 + 9 + 0.4.
Explanation:To write 19.4 in expanded form, we break down the number into its place values. The digit 1 is in the tens place, the digit 9 is in the ones place, and the digit 4 is in the tenths place. So, we can write 19.4 in expanded form as 10 + 9 + 0.4.
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Does this set of ordered pairs represent a function?
{(–5, –5), (–1, –2), (0, –2), (3, 7), (8, 9)}
Answer:
Option C is correct
Yes, the set of ordered pairs {(–5, –5), (–1, –2), (0, –2), (3, 7), (8, 9)} represents the function.
because every x-value corresponds to exactly one y-value.
Step-by-step explanation:
A function states that it is a relation in which every domain value is paired with exactly one element of range.
Given the set of ordered pair:
{(–5, –5), (–1, –2), (0, –2), (3, 7), (8, 9)}
Domain is all the x-values, and range is all the y-values.
Domain: {-5, -1, 0, 3, 8}
Range: {-5, -2, -2, 7, 9}
By definition:
each input value (i.e x values) is paired with exactly one element of y-value.
therefore,the set of ordered pairs {(–5, –5), (–1, –2), (0, –2), (3, 7), (8, 9)} represents the function.
If 4 bushels of rye weigh 76 lb, how much do 8.5 bushels of rye weigh?
Answer: 161.5 lbs
Step-by-step explanation:
Given : The weight of 4 bushes of rye = 76 lb
By applying UNITARY METHOD, the weight of 1 bush will be :-
[tex]\text{ Weight of 1 bush}=\dfrac{76}{4}\\\\\Rightarrow\ \text{ Weight of 1 bush}=19\text{lb}[/tex]
Now, the weight of 8.5 bushes = [tex]8.5\times19[/tex]
The weight of 8.5 bushes = 161.5 lbs
Therefore, the weight of 8.5 bushels of rye= 161.5 lbs
Hence, the required answer is "161.5 lbs".
Let's say the debt in the United States is now near 1.8 × 10^13 dollars and that there are about 300,000,000 people in the United States. If every person paid their fair share of the debt, approximately how much would that be per person?
If the total debt is near $1.8 × 10¹³, then every person has to pay $60,000.
What are arithmetic operations?The four basic operations of arithmetic can be used to add, subtract, multiply, or divide two or even more quantities.
They cover topics like the study of integers and the order of operations, which are relevant to all other areas of mathematics including algebra, data processing, and geometry.
As per the mentioned data in the question,
Total debt in the United States = $1.8 × 10¹³
Total number of people in the United States = 3 × 10⁸
If every person paid their share, then each person has to pay,
= ($1.8 × 10¹³)/(3 × 10⁸)
= $6 × 10⁴ or,
It can be written as $60,000.
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A number changed to 12.6 after it was rounded to what place was the number rounded what would the answer be
If 5 sandwhich rolls cost 1.10 how much will 14 rolls cost
On a Venn diagram, a value that represents what two circles have in common is written outside of both circles. True or false
Which of the following functions has the greatest y-intercept?
f(x) x y
−3 −14
−2 −6
−1 −2
0 3
1 5
2 6
or g(x) = 3 cos(2x) + 1
please include explanation
Answer:
g(x) has greatest y-intercept.
Step-by-step explanation:
We are given a table of values for function f(x) as:
x y=f(x)
−3 −14
−2 −6
−1 −2
0 3
1 5
2 6
We know that the y-intercept of a function is a point where the x-value is zero.
i.e. the input value is zero.
Hence, after looking at the table of values of the function f(x) we have the y-intercept of the function f(x) is:
y=3
Also we are given function g(x) as:
g(x) = 3 cos(2x) + 1
Hence, we calculate the y-intercept of the function g(x) by taking x=0
on taking x=0 we have:
g(0)=3 cos(0)+1
g(0)=3+1=4
Hence, the y-intercept of function g(x) is 4.
Hence, g(x) has the greatest y-intercept.
What is the approximate base area of the resulting figure?
Area of a circle: A = πr2
Answer: [tex]78.5\ cm^2[/tex]
Step-by-step explanation:
From the given we can see that there is a rectangle is rotated about a line bisecting its length in segment of 5 cm in each.
Since the base will be a circle, then the area of the base will be :-
[tex]\text{Area of base}=\pi r^2\\\\\\\Rightarrow\text{Area of base}=3.14\times(5)^2\\\\\\\Rightarrow\text{Area of base}=78.5\ cm^2[/tex]
Hence, the base area of the resulting figure = [tex]78.5\ cm^2[/tex]
The approximate base area of the rectangle is rotated about a line bisecting its length in segments of 5 cm in each is 78.5.
From the given, we can see that there is a rectangle is rotated about a line bisecting its length in segments of 5 cm in each.
Since the base will be a circle, then the area of the base will be
What is the area of the base?
A=pir^2
Where r is the radius of the circle.
A=3,14(5)^2
A=78.5.
Therefore, the approximate base area of the resulting figure is 78.5.
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Given line L = ax + by + c = 0, b 0 What is the x-intercept? y-intercept?
Answer:
On Odyssey ware it is -c/a
Step-by-step explanation:
The x-intercept and the y-intercept of a line can be found by setting y and x to zero in the line equation respectively. The x-intercept is -c/a and the y-intercept is -c/b.
Explanation:To find the x and y-intercepts of the given line equation L = ax + by + c = 0, we must set one variable to zero and solve for the other.
To find the x-intercept of a line, we can set y to zero (as this is the case when the line crosses the x-axis), we get:
L = ax + b(0) + c = 0 or x = -c/a
Therefore the getX-intercept of the line is -c/a.
Similarly to find the y-intercept of the line equation, we can set x to zero (as this is the case when the line crosses the y-axis), we get:
L = a(0) + by + c = 0 or y = -c/b
Hence, the y-intercept of the line is -c/b.
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Convert 1/3 and 4/5 to a decimal. Are both of them repeating or terminating?
1/3 = 0.33333 ( repeating)
4/5 = 0.8 (terminating)
Ned has scored 84 points in the first 6 games of the basketball season. How many points per game has Ned scored?
Answer:
84/6=14
Step-by-step explanation:
read the answer
1. Given a segment with endpoints A and B, what figure can you construct using the steps below?
Step 1: Draw a ray with endpoint C.
Step 2: Open the compass to the length of AB.
Step 3: With the same compass setting, put the compass point on point C. Draw an arc that intersects the ray. Label the point of intersection D.
a. a perpendicular bisector
b. a congruent segment
c. an angle bisector
d. a congruent angle
2. Given a segment with endpoints A and B, what figure can you construct using the steps below?
Step 1: Put the compass point on A and draw a long arc. Be sure the opening is grater than 1/2 AB.
Step 2: With the compass on the same setting, put the compass point on B and draw another long arc. Label the points where the two arcs meet as X and Y.
Step 3: Draw XY. Label the point of intersection of AB and XY as M, the midpoint of AB.
a. a perpendicular bisector
b. a congruent segment
c. an a
1. For that accurate reason, CD and AB will be congruent. the answer here is B) A congruent segment. 2. Option (A) is the right answer. We can construct a perpendicular bisector usind the given steps.
How to find the correct steps?1. Form opening the compass to the length of AB you are setting the radius of the circle the compass could create to the same length of AB then by intersecting with the ray C, we have to copied the length of AB to ray C.
For that accurate reason, CD and AB will be congruent.
Therefore, The answer here is B) A congruent segment.
2. Given a segment with endpoints A and B.
By using the construction step we will draw the following figure that represents a perpendicular bisector XY of line segment AB.
Hence, Option (A) is the right answer. We can construct a perpendicular bisector usind the given steps.
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A survey asked a group of people the size of their households. The results are shown in the frequency distribution.
What is the mean of the frequency distribution? Round your answer to the nearest tenth.
Household size 1 2 3 4 5
f 2 4 6 5 2
3
3.1
3.8
11.6
Answer: 3.1
Step-by-step explanation:
The mean of the frequency distribution is 3.1. Which is the correct answer would be an option (B)
What is arithmetic mean?
Arithmetic mean is defined as the ratio of the sum of observations to the total number of observations. It can be referred to as the average of a specific set of data or the arithmetic mean. One of the basic methods used to acquire a result, the term "Mean" is commonly used in the field of statistics.
The formula for the mean of a given set of data is as follows:
Mean = Sum of Observations/Total number of observations
Given the frequency distribution as :
Household size (x) Frequency (f) fx
1 2 1 × 2 = 2
2 4 2 × 4 = 8
3 6 3 × 6 = 18
4 5 4 × 5 = 20
5 2 5 × 2 = 10
Summation of fx = (Σfx) = 2 + 8 + 18 + 20 + 10 = 58
Total frequency = (Σf) = 2 + 4 + 6 + 5 + 2 = 19
⇒ Mean = Σfx/Σf
⇒ 58/ 19
⇒ 3.1
Thus, the mean of the frequency distribution is 3.1.
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IF b= -8 and a= 3 what are the steps to solve the following:
b -a - 3 =
Find the scale factor if an airplane is 87 feet long; 2 inches = 15 feet.
If a coin is tossed 4 times, and then a standard six-sided die is rolled 2 times, and finally a group of four cards are drawn from a standard deck of 52 cards without replacement, how many different outcomes are possible?
[tex]\(1138368400\)[/tex] different outcomes possible when considering all the events together.
Coin Toss: Since each toss is independent of the others, the total number of outcomes for 4 tosses is:
[tex]\(2 \times 2 \times 2 \times 2 = 2^4 = 16\)[/tex].
Die Roll: A standard six-sided die has 6 faces, each with a different number from 1 to 6. When the die is rolled once, there are 6 possible outcomes. If the die is rolled 2 times, the number of different outcomes is:
[tex]\(6 \times 6 = 6^2 = 36\)[/tex]
Card Draw: When drawing a card from the deck, there are 52 possible outcomes. If a second card is drawn without replacing the first, there are now 51 possible outcomes for the second card (since one card has already been drawn). Continuing this pattern, for the third card, there are 50 possible outcomes, and for the fourth card, there are 49 possible outcomes.
The number of different outcomes for drawing 4 cards without replacement is: [tex]\(52 \times 51 \times 50 \times 49\)[/tex].
[tex]\[ \text{Total Outcomes} = (\text{Coin Toss Outcomes}) \times (\text{Die Roll Outcomes}) \times (\text{Card Draw Outcomes}) \][/tex]
[tex]\[ \text{Total Outcomes} = 16 \times 36 \times (52 \times 51 \times 50 \times 49) \][/tex]
[tex]\[ \text{Total Outcomes} = 6^2 \times 52 \times 51 \times 50 \times 49 \][/tex]
[tex]\[ \text{Total Outcomes} = 36 \times 52 \times 51 \times 50 \times 49 \][/tex]
[tex]\[ \text{Total Outcomes} = 36 \times 31625400 \][/tex]
[tex]\[ \text{Total Outcomes} = 1138368400 \][/tex]
Shawn downloads movies at a base price of $2 per movie. If he downloads 5 movies, he will get a 25% discount. How much will Shawn save on the base price if he downloads 5 movies?
Answer:
$2.50
Step-by-step explanation
Michele wanted to measure the height of her school’s flagpole. She placed a mirror on the ground 48 feet from the flagpole, then walked backwards until she was able to see the top of the pole in the mirror. Her eyes were 5 feet above the ground and she was 12 feet from the mirror. Using similar triangles, find the height of the flagpole to the nearest tenth of a foot. Find the geometric mean of the pair of numbers. A. 20 ft B. 38.4 ft C. 55 ft D. 25 ft
What is the midpoint of the x-intercepts of
f(x) = (x – 4)(x + 4)?
Answer:
midpoint is (0,0)
Step-by-step explanation:
the midpoint of the x-intercepts of
[tex]f(x) = (x - 4)(x + 4)[/tex]
To find the midpoint of x intercepts, we need to find the x intercepts first
we find x intercepts by replacing f(x) with 0
[tex]0 = (x - 4)(x + 4)[/tex]
Set each factor =0 and solve for x
[tex]x-4=0 , x=4[/tex]
[tex]x+4=0, x=-4[/tex]
X intercepts are -4 and 4
Midpoint of -4 and 4 is [tex]\frac{-4+4}{2} =0[/tex]
X intercepts lies on x axis . So midpoint is (0,0)
List of fractions and decimals in order from least to greatest 1.45 1 1/2 1 1/3 and 1.2
42in to 9 feet insimplest form
17 - 8.63 find the sum please thank you
Suppose there are two full bowls of cookies. bowl #1 has 10 chocolate chip and 30 plain cookies, while bowl #2 has 20 of each. our friend stacy picks a bowl at random, and then picks a cookie at random. we may assume there is no reason to believe stacy treats one bowl differently from another, likewise for the cookies. the cookie turns out to be a plain one. how probable is it that stacy picked it out of bowl #1?
The that stacy picked it out of bowl #1 is 0.6
What is Probability?Probability refers to potential. A random event's occurrence is the subject of this area of mathematics.
The range of the value is 0 to 1. Mathematics has incorporated probability to forecast the likelihood of various events.
The degree to which something is likely to happen is basically what probability means.
Given:
Bowl 1 has 10 chocolate chip and 30 plain cookies, while Bowl #2 has 20 of each.
So, P[tex](H_1|E)[/tex]
= P( E| [tex]H_1[/tex]) P([tex]H_1[/tex]) / [ P( E| [tex]H_2[/tex]) P([tex]H_2[/tex] )+ P( E| [tex]H_1[/tex]) P([tex]H_1[/tex])
= (0.75 x 0.5) / (0.75 x 0.5 + 0.5 x 0.5)
= 0.375 / (0.375 + 0.25)
= 0.6
Hence, the probability is 0.6
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"find the third length of the right triangle. give an exact answer and an approximation" HELP PLS
what percent of 18 is 63