Answer:
Tina's height is x inches. She is shorter than her brother, whos height 56 inches.
Step-by-step explanation:
Let the height of Tina = x inches
and the height of her brother = 56 inches
if Tina is shorter than her brother then,
x < 56 inches
Consider a set of data in which the sample mean is 73.4 and the sample standard deviation is 4.9. Calculate the z-score given that x
This question is incomplete, the complete question is;
Consider a set of data in which the sample mean is 73.4 and the sample standard deviation is 4.9. Calculate the z-score given that x = 69.5.
Round your answer to two decimal places.
Answer: the z-score is -0.80
Step-by-step explanation:
Given that;
mean μ = 73.4
standard deviation σ = 4.9
x = 69.5
z-score = ?
z = (x - μ) / σ
we substitute
z = (69.5 - 73.4) / 4.9
z = -3.9 / 4.9
z = - 0.7959 ≈ -0.80 { 2 decimal places }
Therefore, the z-score is -0.80
I need help with this work plz
Answer:
wheres the work???⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
where's the screenshot?
by what number must row 2 in the matrix??
Answer:
Look at the picture
Step-by-step explanation:
i took the test
The row 2 in the matrix must be multiplied by 0.5
Matrix MultiplicationAccording to the question;
The row 2 contains elements; 2 0 -2Hence, let the required number to multiply row 2 be; x so that;
2 × X = 10 × X = 0-2 × x = -1From all the equations above; it follows that;
x = 1/2 = -1/-2Hence, the required number is; 1/2 = 0.5
Read more on matrix multiplication;
https://brainly.com/question/1821869
A car traveled 63 miles on 3 gallons of gas. What proportion can you set up to determine how many miles, m, the car can travel on 7 gallons of gas? 63 7 7 63 ECO II 63 = 3
Answer: With 7 gallons of gas, the car can travel 147 miles.
The proportion is:
N*(63 miles/3) = total distance the car can travel with N gallons of gas.
Step-by-step explanation:
We know that with 3 gallons of gas, the car can travel 63 miles.
Then for N gallons of gas, we first need to count the number of times that 3 is in N.
This is equal to the quotient between N and 3:
N/3
This is the number of times that we have 3 gallons of gas, in a total of N gallons of gas.
And for each one of these, the car can travel 63 miles.
Then the total distance that the car can travel with N gallons of gas is:
(N/3)*63 miles. = N*(63 miles/3) = total distance the car can travel.
In this case, we want to know how many miles the car can travel with 7 gallons of gas, then if we use that equation we get:
(7/3)*63 miles = 147 miles.
please help me asap
Answer:
The answer to the question provided is 53°.
Active
2
3
The average person's speed when riding a bike along a street is 18 kilometers per hour. What conversion factor can be
used to convert this speed to meters per hour?
1 kilometer
1,000 meters
1 meter
1,000 kilometers
1,000 meters
1 kilometer
1,000 kilometers
1 meter
Save and Exit
Sue
Alex drove 372 miles on I-95 and used 12 gallons of gasoline. How many miles did Alex’s car travel per gallon of gasoline?
Answer:
372/12=31
31mpg
Step-by-step explanation:
heres more lolllllllllllll
Answer:
Awwww ty <3
You are too nice lollllllllllllll
Step-by-step explanation:
The shaded areas show the fraction of each of four shelves in a toy store that are stocked with toys and games.
Which mixed number represents the amount of shelf space that is filled?
I need an answer ASAP and pls explain I gotta pass this test
Answer:
2 4/12
Step-by-step explanation:
Answer:
Step-by-step explanation:
how do i write an equation in point-slope form for a horizontal line that passes through(4, –2)??
Answer:
[tex]y = -2[/tex]
Step-by-step explanation:
Given
Horizontal Line
[tex](x_1,y_1) = (4,-2)[/tex]
Required
Determine the equation
The equation is calculated using:
[tex]y - y_1 =m(x-x_1)[/tex]
Where
[tex]m = slope[/tex]
Because the line is a horizontal line, then:
[tex]m = 0[/tex]
Substitute 0 for m and values for x1 and y1 in [tex]y - y_1 =m(x-x_1)[/tex]
[tex]y - (-2) = 0(x -4)[/tex]
[tex]y +2 = 0(x -4)[/tex]
[tex]y +2 = 0[/tex]
Subtract 2 from both sides
[tex]y +2-2 = 0-2[/tex]
[tex]y = -2[/tex]
Hence, the equation is: [tex]y = -2[/tex]
Tina is going for a bike ride. When she leaves her house, she starts pedaling and her speed steadily increases. As she approaches the stop sign at the end of her street, she slows down at a steady pace until she comes to a complete stop. After waiting at the stop sign for her turn to go, she starts pedaling again and her speed steadily increases at a slower pace than when she first left her house. She reaches a comfortable speed and rides at this speed until she approaches another stop sign, causing her to steadily slow down until she again comes to a complete stop.
Answer:
1
Step-by-step explanation:
1212112
please show work to thank you
Answer:
Step-by-step explanation:
1) AC⊥BD and BD bisects AC 1) given
2) AD≅DC 2) linear bisector thm.
3) ∠ADB and ∠CDB are right angles 3) perpendicular bisector thm.
4) ∠ADB ≅ ∠CDB 4) all right ∡'s are congruent
5) BD ≅ BD 5) reflexive POV
6) ΔABD ≅ ΔCBD 6) SAS
Hope this helps!
btw, I was not able to put the lines on top of some of the letters, so my apologies.
Please help me with this question
Answer:
1. 3 x 2 = 6 / 4 x 3 = 12 = 6/12 [simplify] = 1/2 thats the first answer, just do how i did it to get the others, its pretty simple
5.5.19
Factor out the greatest common factor from the following polynomial.
6x(z + 14)+(z + 14)
Select the correct choice below and, if necessary, fill in the answer box to complete your cho
6x(z + 14)+(z+14) = _______ Type your answer in factored form.)
The polynomial has no common factor other than 1.
Answer:
The greatest common factor of 6x(z + 14)+(z + 14) is 1
and if you want it in factored form it is (z + 14)(6x + 1)
Need help I’m not sure what it is.. it’s 8th grade math
Answer:
c is the answer to this
Step-by-step explanation:
Given:
g(x) = 5 – 6x
Find:
g(5)
are the two triangles congruent ?
A. yes
B. no
c . there not enough information to say
Answer:
no
Step-by-step explanation:
Harry makes fruit punch with 3 cups of cranberry juice, 2 cups of mandarin orange juice, and 3 cups of watermelon juice. Approximately what percentage of the punch is cranberry juice?
Answer:
37.5%
Step-by-step explanation:
2/3 x 2/8 in the simplest form
Answer:
[tex] \frac{1}{6} [/tex]
Step-by-step explanation:
[tex] \frac{2}{3} \times \frac{2}{8} = \frac{2 \times 2}{3 \times 8} = \frac{4}{24} [/tex]
Lets divide the numerator and denominator with 4.
[tex] = > \frac{4 \div 4}{24 \div 4} = \frac{1}{6} [/tex]
1: The temperature is -2
∘C
. If the temperature rises by 15
∘C
, what is the new temperature? (Draw a number line to help)- The temperature is -2 c. If the temperature rises by 15 c, what is the new temperature? Answer {You would do 15c takeaway -2c This would equal to the new temperature as being 13c.}
2: At midnight the temperature is - 6
∘C
. At midday the temperature is 9
∘C
. By how much did the temperature rise? (Draw a number line to help)- 15° Celcius {You can add from -6 +1 till you get to 0 then add the rest of the numbers and it will exactly be 15.}
3:Draw a number line to help you with what the final temperature is.
Then write an addition expression that represents the final temperature.
(Hint: Start temp + movement amount = final temperature )
The temperature was and then fell .
__________ + _________ = __________
The temperature was and then rose .
__________ + __________ = __________
The temperature was and then fell .
__________ + __________ = __________
THIS HELP WITH THE LAST QUESTION THIS WILL MEAN ALOT :( FILL IN THE BLANKS!!!
Answer:
For 1. it's 13 degrees 2. For B it is 15 degrees.
Step-by-step explanation:
thats all i could really answer you should try separating this a little more
Solve the equation
3(-2-3x)=-9x-4
Answer: There are no values of x that make the equation true. No solution.
Which of the following shows two congruent triangles
Answer:
all of them
Step-by-step explanation:
all of them seem to have the same marks
but if u get the question wrong my next bet would be to go with only C because it has the marks on the sides if that makes sense
3. A number increased by 5 and divided by 2 is equal to 75. What is the number?
Answer:
633
Step-by-step explanation:
Find the Value of “Y”.
Answer:
26
Step-by-step explanation:
7x - 28 = 5x + 12 and 5x + 12 + y = 180
The angle (7y - 28) and angle y are supplementary angles which means their sum is 180°
7y - 28 + y = 180 add like terms
8y - 28 = 180 add 28 to both sides
8y = 208 divide both sides by 8
y = 26
A and B are sets of real numbers defined as follows.A= {z│z > 4}B= {z│z ≤ 9}Write A U B and A ∩ B using interval notation. If the set is empty, write Ø
Answer:
[tex]AnB=(5,6,7,8,9)[/tex]
[tex](AUB)=(5,\infty) U (-\infty,9)[/tex]
Step-by-step explanation:
From the question we are told that
A= {z│z > 4}
B= {z│z ≤ 9}
Generally A&B are assumed to be really integers
therefore
A={5,6,7,8,.....}={z│z > 4}
B=(9,8,7,6.....)={z│z ≤ 9}
a)For [tex]AnB[/tex]
Mathematically the [tex]AnB[/tex] is given as
[tex]AnB[/tex]=[tex]A=(5,6,7,8,9,10......) n B=(9,8,7,6,5,4,3,2,1......)[/tex]
[tex]AnB[/tex]=(5,6,7,8,9)
Therefore the intercept [tex]AnB[/tex] is Given as
[tex]AnB=(5,6,7,8,9)[/tex]
b) for [tex]AuB[/tex]
Mathematically the [tex]AuB[/tex] is given as
[tex]AuB[/tex]=[tex]A=(5,6,7,8,9,10......) U B=(9,8,7,6,5,4,3,2,1......)[/tex]
[tex]AuB[/tex]= [tex](5,\infty) U (-\infty,9)[/tex]
Therefore the union [tex]AuB[/tex] i given as
[tex]AuB[/tex]= [tex](5,\infty) U (-\infty,9)[/tex]
Substitute x=y+1 into the expression 3x -1 and determine the first step
Answer: the solution becomes 3=y+1-1
Step-by-step explanation:
The first step is to combine like terms meaning you subtract 1-1. Then you are left with 3=y.
Someone please help and choose correct answer
Answer:
The equation of line that passes through point (2,-1) and has a slope of -3 is [tex]\mathbf{y=-3x+5}[/tex]
Option A is correct.
Step-by-step explanation:
We need to write equation of line that passes through point (2,-1) and has a slope of -3
The equation is written in slope-intercept form: [tex]y=mx+b[/tex] where m is slope and b is y-intercept.
We are given slope: m = -3
We need to find y-intercept (b)
Using the point (2,-1) and slope m=-3, we can find y-intercept
[tex]y=mx+b\\-1=-3(2)+b\\-1=-6+b\\b=-1+6\\b=5[/tex]
So, we get y-intercept b = 5
Now, the required equation having slope m =-3 and y-intercept b = 5 will be:
[tex]y=mx+b\\y=-3x+5[/tex]
So, the equation of line that passes through point (2,-1) and has a slope of -3 is [tex]\mathbf{y=-3x+5}[/tex]
Option A is correct.
Malik has two pencils. He has four blue pencils and 2 red pencils. What is the radio of red pencils and blue pencils?
Answer: 2:4 or 1:2
You could also write it in a fraction 1/2
Answer:
2:4
Step-by-step explanation:
We know that Malik has 4 blue pencils and 2 red pencils. Therefore, the ratio of red pencils to blue pencils is 2:4.
# of red pencils : # of blue pencils
2 red pencils : 4 blue pencils
2:4
I hope this helps!
PLEASE HELP ME ANSWER THIS I WILL GIVE FREE THANKS
Answer:
C: Two solutions
Step-by-step explanation:
If you try to solve the problame you can find to solution's
Hope this Help's
Answer:
lol too bad laurenercsp6fpli
Step-by-step explanation:
PLEASE HELP!!!!! I'LL MARK BRAINLIEST Which table represents a linear function with a greater y - intercept than that of the function represented in the graph?
A. X Y
0 3
6 -39
B. X Y
-2 0
0 0
C. X Y
0 5
5 -45
D. X Y
-2 1
0 4
E. X Y
0 -7
4 11
Answer:
The answer is c
Step-by-step explanation:
Answer:the answer is c mark me brainiest remember
Step-by-step explanation: