She had 100 points then lost 12-0 points.
Subtract 120 from 100.
100 - 120 = -20
Answer:20
Step-by-step explanation:
The diagonal of a rectangle is 25 in. The width is 15 in. What is the area of the rectangle?
The area of the rectangle is 300 square inches, calculated by multiplying the length (20 inches) by the width (15 inches).
To find the area of the rectangle, we can use the formula for the area of a rectangle, which is [tex]\( \text{length} \times \text{width} \).[/tex] However, we need to find the length of the rectangle first.
We are given that the width of the rectangle is 15 inches. Let's denote the length of the rectangle as [tex]\( l \).[/tex]
We know that the diagonal of a rectangle forms a right triangle with the length and width of the rectangle. Therefore, we can use the Pythagorean theorem to find the length of the rectangle.
The Pythagorean theorem states that in a right triangle, the square of the length of the hypotenuse (the diagonal) is equal to the sum of the squares of the lengths of the other two sides (the length and the width).
So, we have:
[tex]\[ l^2 + 15^2 = 25^2 \][/tex]
Solving for[tex]\( l \):\[ l^2 = 25^2 - 15^2 \]\[ l^2 = 625 - 225 \]\[ l^2 = 400 \][/tex]
Taking the square root of both sides:
[tex]\[ l = \sqrt{400} \]\[ l = 20 \][/tex]
Now that we have found the length of the rectangle to be 20 inches, we can calculate the area:
[tex]\[ \text{Area} = \text{length} \times \text{width} \]\[ \text{Area} = 20 \times 15 \]\[ \text{Area} = 300 \, \text{square inches} \][/tex]
So, the area of the rectangle is 300 square inches.
Solve the equation for x.
8(4x + 8) = 160
A) 3
B) 7
C) 12
D) 14
Answer:
Step-by-step explanation:
8(4x + 8) = 160.....distribute the 8 thru the parenthesis
8(4x) + 8(8) = 160
32x + 64 = 160....subtract 64 from both sides
32x + 64- 64 = 160 - 64
32x = 96
x = 96/32
x = 3 <===
Which expression is equivalent to the expression 5(3x+4-x)
Final answer:
The equivalent expression to 5(3x+4-x) is obtained by combining like terms and distributing the 5, which results in 10x + 20.
Explanation:
To find an expression equivalent to 5(3x+4-x), we must first simplify the expression inside the parentheses. We combine like terms 3x and -x, which gives us 2x. Then, we distribute the 5 across the simplified expression within the parentheses:
5(3x+4-x) = 5(2x+4) = 5*2x + 5*4 = 10x + 20.
So the expression equivalent to 5(3x+4-x) is 10x + 20. This process involves simplifying expressions step by step, ensuring clarity and accuracy in mathematical computations. By systematically combining like terms and distributing constants, we obtain a concise and equivalent expression that represents the original expression's value.
When multiplying the fractions 1/6 and 7/8 what is the product of the numerators?
Answer:
Step-by-step explanation:
1 7 7 <== numerator
-------- X ------ = --------
6 8 48 <== denominator
" the product " is the result of multiplying
so the product of the numerators is 7
The product of the numerators is 7.
What is Fraction?All fragments correspond of a numerator and a denominator and they're separated by a vertical bar known as the fractional bar.
The denominator indicates the number of corridor in which the total has been divided into. It's placed in the lower part of the bit below the fractional bar.The numerator indicates how numerous sections of the bit are represented or named. It's placed in the upper part of the bit above the fractional bar.Given:
We have have to multiply the fraction 1/6 to 7/8.
First, the product of Numerator
1 x 7 = 7
and, product of Denominator
6 x 8 = 48
Thus, the product of the numerators is 7.
Learn more about Fraction here:
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Type the correct answer in the box
c = cost of food/med for cats
d = cost of food/med for dog
y = total cost/spent
What you know:
y = 6c + d [has 6 cats and 1 dog]
c = 2/3d - 5 [cost for cat is 5 less than 2/3 cost for dog]
y = $195
y = 6c + d
Substitute/plug in what you know, plug in (2/3d - 5) for c and 195 for y
195 = 6(2/3d - 5) + d Distribute/multiply 6 into (2/3d - 5)
195 = 4d - 30 + d Combine like terms
195 = 5d - 30 Add 30 on both sides of the equation
225 = 5d Divide 5 on both sides
$45 = d
Substitute -1 for y into the second equation for the example do you still get X equals negative 4
Answer:
you need to give more information for a good answer
vimesha drove 232 miles in 4 hours. at this rate, how far could she drive in 7 hours? what is her rate of speed in miles per hour?
Answer: distance = 406 miles
speed = 58 miles/hr
Step-by-step explanation:
4 hours - 232 miles
1 hr - 232/4
7 hours - 232/ 4 x 7 = 406 miles
Therefore , her distance is 406 miles for 7 hours.
Speed = distance / time
speed = 406/7 = 58 miles/hr
-7x+y=−7x+y=
\,\,-30−30
2x-5=2x−5=
\,\,yy
A brand of crackers is sold in a box shaped like a rectangular prism. The box has a length of 13 cm, a width of 8 cm, and a height of 22 cm. What is the volume of the box of crackers?
Answer:
LxWxH
Step-by-step explanation:
Volume can be calculated by using the formula: (length) x (width) x (height)
In this particular question, you are given the length as 13cm, the width as 8cm, and the height of 22cm.
To obtain the volume, you should plug these numbers into the formula (length) x (width) x (height)
When plugged in, the equation should look like this: (13cm) x (8cm) x (22cm).
When 13 x 8 x 22 =2288cm
Since you are calculating the volume, the answer will be given in centimeters cubed, so your final answer will be 2,288cm^3
Hope this explanation helps :)
Answer:
I think the answer is 2288 cm
In order to find volume of a rectangular prism you have to do l x w x h (length times width times height)
13 x 8 = 104
104 x 22 = 2288
I hope its right sorry if nott:(
Step-by-step explanation:
disjoint subsets A and B of a universal set U, except assume that n(U)=120, n(A)=45, and n(B)=50.
Then n(A′∪B)=
Answer:
n (A' U B ) = 75
Step-by-step explanation:
Here, given : n(U)=120, n(A)=45, and n(B)=50
As we know:
n (A ' U B) = n(A) − n (A∩B) ... (1)
Here, n(A) = 45
So, n( A') = n(U) - n(A) = 120 - 45 = 75
⇒ n(A') = 75
Now, as given A and B are disjoint sets.
⇒ n (A ∩ B) = Ф
So, (A' U B ) = A'
So, n (A' U B ) =n( A') = 75
⇒ n (A' U B ) = 75
Can you guys help me??? 6 = -5 + u. What is u???
Work is provided in the image attached.
Before he went shopping, Andy had $28. After he cashed a check, he had more than $75. What is the amount of the check Andy cashed?
Answer:
$47
Step-by-step explanation:
Andy's initial amount was $28.
The question is on subtraction. It is meant to understand your capacity on worded form of subtraction.
After Andy cashed the cheque, his amoussou rose from $28 to $75.
Therefore, to know the amount on the cheque we subtract the initial amount from the total amount.
$75 - $28 = $47
What does 22 divided by 3 plus 1 equal?
Answer:
8.33
Step-by-step explanation:
What is a mean median and mode
Answer:
Mean, median, and mode are three kinds of "averages".
Step-by-step explanation:
Find the mean, median, mode, and range for the following list of values:
13, 18, 13, 14, 13, 16, 14, 21, 13
The mean is the usual average, so I'll add and then divide:
(13 + 18 + 13 + 14 + 13 + 16 + 14 + 21 + 13) ÷ 9 = 15
Note that the mean, in this case, isn't a value from the original list. This is a common result. You should not assume that your mean will be one of your original numbers.
The median is the middle value, so first I'll have to rewrite the list in numerical order:
13, 13, 13, 13, 14, 14, 16, 18, 21
There are nine numbers in the list, so the middle one will be the (9 + 1) ÷ 2 = 10 ÷ 2 = 5th number:
13, 13, 13, 13, 14, 14, 16, 18, 21
So the median is 14.
The mode is the number that is repeated more often than any other, so 13 is the mode.
The largest value in the list is 21, and the smallest is 13, so the range is 21 – 13 = 8.
mean: 15
median: 14
mode: 13
range: 8
Final answer:
Mean, median, and mode are basic statistical measures used to find the center of a data set. Mean finds the average, median identifies the middle value when data is ordered, and mode determines the most frequently occurring value.
Explanation:
Mean, median, and mode are measures of central tendency that describe the way in which different values cluster around a central point in a set of data.
The mean is the average of all the numbers in the data set. You calculate the mean by adding up all the numbers and dividing by the total number of values.
The median is the middle value of an ordered data set. If the data set has an odd number of values, the median is the exact middle number. If there is an even number of values, the median is the average of the two central numbers.
The mode is the value that appears most frequently in the data set. If no number repeats, the data set has no mode; if two or more numbers occur with equal frequency and more often than any other number, the dataset is multimodal, having several modes.
Each of these measures provides a different perspective on the typical value or center of a dataset, and is useful in various statistical analyses.
Liz earns a salary of $2,200 per month, plus a commission of 3% of her sales. She wants to earn at least $2,800 this month. Enter an inequality to find amounts of sales that will meet her goal. Identify what your variable represents. Enter the commission rate as a decimal.
Answer:
The amount of sales in order to meet her goal must be greater than or equal to $20,000
Step-by-step explanation:
Let
x----> represent the amount of sales Liz will need
we know that
The amount of sales for the month multiplied by the commission rate as a decimal plus the fixed amount must be greater than or equal to $2,800 each month
so
The inequality that represent this situation is
[tex]0.03x+2,200\geq 2,800[/tex]
solve for x
subtract 2,200 both sides
[tex]0.03x \geq 2,800-2,200[/tex]
[tex]0.03x \geq 600[/tex]
divide by 0.03 both sides
[tex]x \geq \$20,000[/tex]
The amount of sales in order to meet her goal must be greater than or equal to $20,000
whats the area of 3,0 3,9 8,9 8,0 in units
Answer:2
Step-by-step explanation:
math help pls, thank youu!!!!!!
Answer:
See below.
Step-by-step explanation:
John has 16 cups of apples and 15 cups of flour..
A pie needs 4 cups of apples and 3 cups of flour.
Apples: 16/4 = 4 he has enough apples to make 4 pies.
Flour: 15/3 = 5 he has enough flour to make 5 pies.
He can only make 4 pies, because of the amount of apples he has.
By making 4 pies, he uses all his apples, and he can make no cobblers.
x = 4 pies; y = 0 cobblers
Plot (4, 0).
A pie needs 2 cups of apples and 3 cups of flour.
Apples: 16/2 = 8 he has enough apples to make 8 cobblers.
Flour: 15/3 = 5 he has enough flour to make 5 cobblers.
He can only make 5 cobblers, because of the amount of flour he has.
By making 5 cobblers, he uses all the flour, and he can make no pies.
x = 0 pies; y = 5 cobblers
Plot (0, 5).
Now we calculate the amount of money.
At point (4, 0), 4 * $3 = $12
At point (0, 5), 5 * $2 = $10
Point (4, 0) shows a profit of $12 which is the most profit he can make.
Consider the diagram shown. Choose all the true statements.
If Θ = 2 rad, then r > s.
If Θ = 1 rad, then r ≤ s.
If s = 1/2r, then 2Θ = 1.
If s/2r=1, then Θ = 2
Answer:
If Θ = 1 rad, then r ≤ s
If s = 1/2r, then 2Θ = 1
If s/(2r)=1, then Θ = 2
Step-by-step explanation:
we know that
The arc length s is equal to
[tex]s=r\theta[/tex]
where
r is the radius
[tex]\theta[/tex] is the central angle in radians
Verify each statement
case 1) If Θ = 2 rad, then r > s
The statement is false
Because
For Θ = 2 rad
substitute
[tex]s=r(2)\\s=2r[/tex]
so
[tex]s>r[/tex]
case 2) If Θ = 1 rad, then r ≤ s
The statement is true
Because
For Θ = 1 rad
substitute
[tex]s=r(1)[/tex]
[tex]s=r[/tex]
so
[tex]r\leq s[/tex] ---> is true
case 3) If s = 1/2r, then 2Θ = 1
The statement is true
Because
For s=1/2r
substitute
[tex]\frac{1}{2}r=r\theta[/tex]
[tex]\theta=\frac{1}{2}[/tex]
[tex]2\theta=1[/tex]
case 4) If s/2r=1, then Θ = 2
The statement is true
Because
For Θ = 2
substitute
[tex]s=r(2)\\\\\frac{s}{2r}=1[/tex]
How do i find the point on a line segment given the ratio and endpoints?
Answer:
OkAy reeee
Step-by-step explanation:
BOOMER
I need to know this answer
Answer:
r = 7
Step-by-step explanation:
Given
r + 15 = 4r - 6 ( subtract 4r from both sides )
- 3r + 15 = - 6 ( subtract 15 from both sides )
- 3r = - 21 ( divide both sides by - 3 )
r = 7
At a sale on winter clothing Cody brought two pairs of gloves and four hats for $43.00 tori bought two pairs of gloves and two hats for 30.00.find the prices of the hats and gloves
Answer:
Cost of one glove pair is $ 8.50 and the cost of one hat is $6.50
Step-by-step explanation:
Let g represents the cost of one gloves pair
h represents the cost of one hat
Then
Cody brought two pairs of gloves and four hats for $43.00
This can be written as
2g + 4h = 43-------------------(1)
Tori bought two pairs of gloves and two hats for 30.00
This can be written as
2g + 2h = 30------------------(2)
Subtracting (2) from (1)
2g + 4h = 43
2g + 2h = 30
(-)
--------------------------
0g + 2h = 13
------------------------------------
2h =13
h = 13 / 2
h = 6.5---------------------(3)
Substituting (3) in (2)
2g + 2(6.5) = 30
2g + 13 = 30
2g = 17
g = 17 / 2
g = 8.5
So one hat is $6.50 and one pair of gloves is $8.50.
i was told to find 2 reasons. i did one, can someone do my other?
pls dont let this slide cmon PLEASE
Answer:
The following observation and calculations show that the iterative rule is correct.
Step-by-step explanation:
The second reason why these calculations are true is the fact these calculations represent geometric sequence.
Considering the data
200, 220, 242, 266.2, 292.82, 322.102,....
Any sequence is said to be the geometric sequence If the ratio between two consecutive terms remains constant - commonly known as common ration which is denoted by 'r'.
As the ratio between two consecutive terms remains constant. For example,
[tex]r=\frac{220}{200} =1.1, r=\frac{242}{220} =1.1, r=\frac{266.2}{242} =1.1[/tex]
So, the given sequence is a geometric sequence. In other words, in Geometric Sequence each term can be found in terms of multiplying the previous term by a constant factor which is 1.1.
So,
220 is obtained by multiplying 200 by 1.1.
i.e. 200×1.1 = 220
Also,
242 is obtained by multiplying 220 by 1.1.
i.e. 220×1.1 = 242
and so on...
Therefore, it is clear from the current observation and calculation that the iterative rule is correct.
Keywords: sequence, geometric sequence
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Which equation can be simplified to find the inverse of y = x2 – 7? x = y squared minus one-seventh StartFraction 1 Over x EndFraction = y squared minus 7 x = y2 – 7 –x = y2 – 7
Answer:
x = y^2 – 7
Step-by-step explanation:
The first step in finding the inverse of y = f(x) can be to write the equation x = f(y). The equation shown above is such an equation.
Answer:
[tex]x= y^2-7[/tex]
Step-by-step explanation:
We have been given an equation [tex]y=x^2-7[/tex]. We are asked to determine that which equation can be simplified to find the inverse of our given equation.
We know that to find inverse of an equation, the x and y-values are interchanged.
Let us interchange x and y values for our given equation.
[tex]x= y^2-7[/tex]
Therefore, the equation [tex]x= y^2-7[/tex] can be simplified to find the inverse of our given equation.
Which of the following representations are functions?
A only
A and B only
A and C only
A, B and C
Option 2: A and B only
Step-by-step explanation:
A: [tex]\{(0,9),(3,12),(-5,10),(5,10)\}[/tex]
The function can be represented in ordered pairs. Also, the x-values are not repeated and each has only one y-value. Hence, in this given ordered pair the values of x are not repeated and each has only one y-value.
Thus, A is a function.
B: [tex]y=x^{2} +10[/tex]
This is the general way of representing a function in which the input value (x-value) exactly related to one output value (y-value). Hence, in this given function the x-value has only one y-value.
Thus, B is a function.
C: The function can also be represented using tables in which each x-value is not repeated and has only one y-value. But, in this given table, the values of x (x=10) are repeated twice.
Thus, C is not a function.
Option 1: A only
Reason: A and B are the correct representations of the function.
This option 1 is not the correct answer.
Option 2: A and B only
Reason: A and B are the correct representations of the function.
This option 2 is the correct answer.
Option 3: A and C only
Reason: C is not a function. Only A and B are the correct representations of the function.
This option 3 is not the correct answer.
Option 4: A, B and C
Reason: Only A and B are the correct representations of the function and C is not a function.
This option 4 is not the correct answer.
If c (x) = StartFraction 5 Over x minus 2 EndFraction and d(x) = x + 3, what is the domain of (cd)(x)?
all real values of x
all real values of x except x = 2
all real values of x except x = –3
all real values of x except x = 2 and x = –3
Answer:
The domain of the function (cd)(x) will be all real values of x except x = 2.
Step-by-step explanation:
The two functions are [tex]c(x) = \frac{5}{x - 2}[/tex] and d(x) = x + 3
So, (cd)(x) = [tex](\frac{5}{x - 2})(x + 3) = \frac{5(x + 3)}{x - 2}[/tex]
Then, for x = 2 the function (cd)(x) will be undefined as zero in the denominator will make the function (cd)(x) undefined.
Therefore, the domain of the function (cd)(x) will be all real values of x except x = 2. (Answer)
Answer:
the answer is b on edg2020
Step-by-step explanation:
1. the sum of the first n odd positive integers is 64. what is the value of n ?
2. how many positive integers between 100 and 200 are divisible by 14 ?
please please help :(
Step-by-step explanation:
The sum of first n odd positive integer is n^2. The nth odd number is 2n-1.
i.e. 1 + 3 + ........+ (2n-1) = n^2.
1 + 3 +..........+ (2n-1) = 64
n^2 = 64
n = 8.
The positive integers between 100 and 200 which are divisible by 14 are 112, 126, 140, 154, 168, 182, 196. It is obtained by the multiples of 14 between 100 and 200.
100 = 7 * 14 + 2
200 = 14 * 14 + 4. The answer is 14 - 7 = 7
The seven numbers are
14 * 8 = 112
14 * 9 = 126
14 * 10 = 140
14 * 11 = 154
14 * 12 = 168
14 * 13 = 182
14 * 14 = 196
Mr. Phillips is mixing paint for his art
class. How many 6-ounce bottles can
he fill with the quantities of paint shown
at the right? Explain.
Answer:
the question lacks the full information and is incomplete.
Step-by-step explanation:
An inscribed angle of circle T has a measure of 36°. Determine the measure of the intercepted arc?
A. 72
B. 6
C. 36
D. 18
Answer:
A
Step-by-step explanation:
An inscribed angle of circle T has a measure of 36°.
The cantral angle subtended on the same arc as this inscribed angle has the measure twice greater than inscribed angle, so the measure of the central angle is
[tex]36^{\circ}\cdot 2=72^{\circ}[/tex]
The measure of the intercepted arc (at which angles are subtended) is the same as the measure of the central angle, so correct option is option A
Answer:
a is the answer
Step-by-step explanation:
theresa has two brothers , paul and Steve, who are both the same height. Paul says he is 16 inches shorter then 1 1/2 times theresas height. Steve says he is 6 inches shorter then 1 1/3 times theresas height. if they are both right how tall is Theresa? write an expression to represent Pauls height in inches
Answer:
7ft
Step-by-step explanation:
p=paul's height
s=steve's height
t=theresa's height
p=s
1 and 1/2=3/2
1 and 1/3=4/3
p=-16+(3/2)t
s=-6+(4/3)t
p=s so
-16+(3/2)t=-6+(4/3)t
add 6 to both sides
-10+(3/2)t=(4/3)t
times both sides by 6 to clear fractions
-60+9t=8t
minus 9t both sides
-60=-t
times -1
60=t
t=60
theresa is 60 inches or 5ft
steve and paul are 84 inches or 7ft (wow!)
A circle with circumference 6 has an arc with a 20 central angle,
What is the length of the arc?
Answer:
0.3 units
Step-by-step explanation:
The ratio of the length of the arc to the circumference of the circle is proportional to the ratio of the central angle to the sum of angle in a circle.
[tex]\frac{l}{6}=\frac{20}{360}[/tex]
This implies that:
[tex]l=\frac{20}{360}*6[/tex]
This simplifies to: [tex]l=\frac{20}{60}[/tex]
[tex]l=\frac{1}{3}=0.3 units[/tex]
Since the circumference of this circle is 6 units, the length of the arc formed is equal to 0.33 units
Given the following data:
Circumference = 6 units.
Central angle = 20°
How to calculate the length of the arc.Mathematically, if you want to determine the length of the arc formed by a circle, you will divide the angle subtended by the arc by 360 degrees and then multiply this fraction by the circumference of the circle as follows:
20/360 × 6 = 0.33 units.
Read more on circumference here: brainly.com/question/14478195