Answers
Answer:
answer is a 14 okk 14 is a correct answer
Related Questions
Which of the following is a measure of spread?
1.Range
2.Mean
3.Median
4.Mode
5.All of the above: Mean, Median, Mode, and Range
6.Mean, Median, and Mode only
Answers
Answer: 1. range
Step-by-step explanation: range is the spread of values from lowest to highest in which you will find all the values.
can somebody plsss help me with these 2 questions
Answers
Answer:
no LLLLLLLLLLLLLL
2. Answer questions (a – d) for the following three data sets.
A = {3, 5, 7, 9, 11, 12, 12} B = {1, 2, 2, 5, 5, 9, 13}
C = {2, 5, 8, 9, 12, 13, 17}
b. Find the standard deviation of each data set.
c. Identify the data set with the largest and smallest standard deviation.
d. Explain what the standard deviations say about the data sets.
Answers
Answer:
The mean is
A. 8.4
B.5.2
C.9.4
Step-by-step explanation:
A= {3,5,7,9,11,12,12}
B= {1,2,2,5,5,9,13}
C= { 2,5,8,9,12,13,17}
A) Find the mean of each data set
B) Find the standard deviation of each data set
C) Identify the data set with the largest and smallest standard deviation
D) Explain what the standard deviations say about the data set
[tex]f(x) = 1 - 2 x ^{2} [/tex]
[tex]g(x) = x + 1[/tex]
Compute f(g(-1)).
Answers
Step-by-step explanation:
f(g(x))= f(x+1)
f(g(1))= f(-1+1)= f(0)
f(0)= 1 - 2(0)²
=1-0
=1
How can you tell if an equation (for example, x=16+3y (don’t solve this)) will be represented by a straight line when graphed on a coordinate plane? Is there an easy way to tell or how do you figure that out?
Answers
Answer:
I know it is a straight line because I can convert it into standard or slope intercept form. An example of when something isn't a straight line is like y=|x|.
x=16+3y
-3y=-x+16
y=1/3x-16/3
If the variable looks like x^2 or something, then it will not be a straight line.
anybody know this please help
Answers
9514 1404 393
Answer:
A = -5
Step-by-step explanation:
The equation can be simplified, then solved for A.
[tex]\dfrac{-8+A\times(-8)-(-6)}{-3+(-8)\div2\times4}=-2\\\\\dfrac{-8-8A+6}{-3-4\times4}=-2\\\\\dfrac{4A+1}{-3-16}=1\qquad\text{multiply by -1/2}\\\\4A+1=-19\qquad\text{multiply by -19}\\\\4A=-20\qquad\text{subtract 1}\\\\\boxed{A=-5}\qquad\text{divide by 4}[/tex]
Crosby had $300 in his checking
account. Over one week, he
withdrew $50, wrote a check for
$20, and deposited $60. What was
his account balance at the end of
the week?
Answers
Answer:
390
Step-by-step explanation:
so 50-20 = 30 30+60= 90
90+300 = 390
Answer:
$290
Step-by-step explanation:
300-50= 250
250-20=230
230+60=290
How long will it take 4 machines to complete a task, given that 7 machines can complete the same task in 8 days?
Answers
Answer:
14
Step-by-step explanation:
(3, r) and (7, 2) m = 1
Answers
Answer:
r = -2
Step-by-step explanation:
2+2 = 4
7-3 = 4
4/4 = 1
m = 1
4. Which of the following is correctly written in Standard Form?
Answers
Reason:
The standard form for equations is usually y=mx+c
Please mark as a brainliest (crown) above my comment. Would be much appreciated
Find the x and y intercepts
Answers
Answer:
Below
Step-by-step explanation:
The x-intercepts are the points on the graph where the lines cross the x-axis. This means that whatever the x-intercepts points are, the y's will be 0 :
(-3,0) and (3,0)
The y-intercept is the point on the graph where the line crosses the y-axis. This means that whatever the y-intercept point is, the x's will be 0 :
(0,-3)
Hope this helps!
A map of Pennsylvania has a scale of ¾ inch to 25 miles. If Pittsburgh and Philadelphia are 9 inches apart on the map, how many miles apart are the two cities? Please help due today
Explanation please
Answers
Answer:
225 miles
Step-by-step explanation:
0.75 inches : 25 miles
we can times 0.75 by 12 to get 9, so we have to times the other side by 12 too.
9 inches : 300
An object is thrown upwards with a speed of 20 m/s. After t seconds, its height can be solved using the formula h = 20t - 4.9t2 where h is the height and t is the time. After how many seconds is the object 19.6 meters high?
Answers
Step-by-step explanation:
h= 20t - 4.9t^2
when h=19.6m
19.6=20t - 4.9t^2
4.9t^2 -20t+19.6=0
solving quadratically
t= 1.64 seconds or t= 2.45 seconds
Which is the image of the point (9,-4) after a reflection about line y = 2 then translated along the vector <-2,4>?
A. (7,4)
B. (9,8)
C. (7,0)
D. (7,12)
Answers
=======================================================
Explanation:
Start at (9,-4). Move 6 units up to arrive at (9,2). This second point is on the horizontal mirror line of y = 2. We move another 6 units to get to (9,8).
Going from (9,-4) to (9,8) represents reflecting over the line y = 2.
Now apply the translation vector <-2,4> which says "shift to the left 2 units and shift up 4 units". That translation vector is the same as writing the rule [tex](x,y) \to (x-2,y+4)[/tex]
Applying that translation to the point (9,8) moves us to (7,12)
Check out the diagram below.
Factor -4 out of -12r + 20.
Answers
Answer:-12r+20=-4(3r-5)
Step-by-step explanation:
Pls mark as brainliest
Answer:
-4(3r + 5)
Step-by-step explanation:
To factor -4 out of -12r + 20, we need to find out what are the factors that can be multiplied with -4 to get a product of -12r and 20.
To get a product of -12, we must multiply -4 by 3r.
And to get a product of 20, we must multiply -4 by -5.
Therefore, the correct answer is: -4(3r - 5)
Please mark my answers as the Brainliest if you find this helpful :)
please answer this and explain I'm having a hard time understanding this
Answers
Answer:
Step-by-step explanation:
Statement
1 .
m<ACB = 2(x+10)
m <DCE = 5(3x-74)
2. <ABC ≅ <DCE
3. <ABC = <DCE
4. 2(x+10) = 5(3x-74)
5. 2x+20 = 15x -370
6. -13x = -390
7. x = 30
8. m<ACB = 2(30+10)°
9. m<ACB =80
Reason
1. Given
2. Vertical angles are congruent
3. Congruent angles have equal measure
4. Substitution POE (postulate of equivalence)
5. Distributive property of multiplication over addition and subtraction
6. - POE (subtraction POE- because we subtracted the same amount from both sides of the equation 15x and 20 )
7. division POE (we divided both sides of the equation by -13)
8. Substitution Postulate (we substituted x for 30)
9. Addition and multiplication postulate
determine the intercepts of the line
x intercept: ?,?
y intercept: ?,?
Answers
Answer:
x-int = 4.5
y-int = -1
Buddy you don't need to spam the question btw
HELP HELP HELP !!!
Which equation shows that the product of a square matrix A and its identity matrix I is A?
Answers
Answer:
Option B
Step-by-step explanation:
The multiplication process of matrices works by multiplying the first row of the first matrix by the first column of the second matrix. The same goes with the second row of the first matrix by the second column of the other matrix. Below is the solution why option B is the correct answer.
[tex]A = \left[\begin{array}{ccc}8&11\\13&5\\\end{array}\right][/tex]
[tex]B = \left[\begin{array}{ccc}1&0\\0&1\\\end{array}\right][/tex] ← This is the Identity Matrix.
The attached screenshot shows the solution of the multiplication process. In essence, if you multiply any matrix by the identity (Matrix B), you should end up with your original matrix. Thus, multiplying Matrix A by the Identity matrix results in the same values as Matrix A.
Therefore, the correct answer is B.
if x+y=7 and xy=10 find x2+y2+5xy
Answers
Answer:
64
Step-by-step explanation:
x+y = 7
xy = 10
2x+2y+5xy = 2(x+y)+5(xy) = 2*7+5*10 = 14 + 50 = 64
216 divied by blank to the third power
Answers
Answer:
6
Step-by-step explanation:
3√216 = 6
or
6 *6 is 36
36 * 6 is 216
Hope this helps!
Please help! Determining an unknown angle measure for geometry
Answers
M<3 = 115° is ur answer
Which of the following is a true statement?
a. The sum of two irrational numbers is always an irrational number.
b. The product of two irrational numbers is an irrational number.
c. Every real number is always rational.
d. Every real number is either rational or irrational.
Answers
Answer:
the sum of two irrational number is always an irrationa number
Johnny bought a Blu-Ray Disc recorder for $280. Now, it's on sale for $220. Find the percent of change in the price. Round to the nearest whole percent if necessary.
Answers
Answer -21.43
Step-by-step explanation:
-21.43
Step-by-step explanation:
cost price :$280
selling price:$220
%profit =sp-cp/cp ×100
%loss=cp-sp/cp×100
%loss=280-220/280 ×100
=60/280 ×100
=21.4285
=21
A package of 6 pairs of insulated gloves costs $38.94. What is the unit price of the pairs of gloves? The unit price is $ per pair of gloves.
Answers
Answer:
6.49
Step-by-step explanation:
6 pairs of insulated gloves cost $38.94
That means 6 x (price of one glove) = 38.94
Let's say the price of on glove = x
The equation is :
6x = 38.94
x = 38.94 ÷ 6 (divide all sides by 6)
x = 6 + (2.94 ÷ 6) (Splitting numbers to multiples of 6)
x = 6 + 0.4 + ( 0.54 ÷ 6) (Splitting numbers to multiples of 6)
x = 6 + 0.4 + 0.09 (Adding all sums)
x = 6.49
Each pair of gloves cost 6.49
-Chetan K
Answer:
6.49
Step-by-step explanation:
Practice 1-2: Unit Rates (Level: Middle School)
Here, given the cost of 6 pairs pf gloves = $38.94
Now, the unit price = Price per unit of the given item
U =
[tex]\frac{38.94}{6} =6.49[/tex]
What is the equation in slope-intercept form of a line with
slope -5/4 and y-intercept 2?
Answers
so
y = -5/4x + 2
good luck!!
Find the quotient. Your answer should be in simplest form.
-4/5 divided by 8/9
Answers
-4/5 times 9/8 = -36/40
Then simplify that you get -9/10
What does the expression you wrote in part d mean?
Answers
Answer:
you give us no context
Answer:
The expression means that if Harold has one pack of red sticks and one pack of blue sticks, he could distribute them equally among 4 people without having any sticks of either color leftover.
Step-by-step explanation:
A store is having a sale on sweatshirts. The regular price of a sweatshirt is $30. The markdown is 35% . What is the sale price of the shirt?
$10.50
$10.50
$40.50
$40.50
$19.50
$19.50
$1.50
Answers
For any linear function f(x) = mx + b, when does kf(x) = f(kx)?
Answers
Only when b = 0 or k = 1.
If f(x) = mx + b, then
f (kx) = m (kx) + b = mkx + b
while
k f(x) = k (mx + b) = kmx + kb
The two expression are identical only if
kb = b ===> kb - b = 0 ===> b (k - 1) = 0 ===> b = 0 or k = 1
The length of a rectangle is twice its width. The length is 4 1/2 feet. What is the area of the rectangle in square feet?
Answers
Answer:
Loading,please wait...
Step-by-step explanation: