Answer:
16
Step-by-step explanation:
12-(-4)=12+4=16
Answer:
16
Step-by-step explanation:
12 - (-4)
when you subtract a negative, you add.
12 + 4 = 16
Find the value of y ?
thank youuuuu
Answer:
Step-by-step explanation:
y = 3*[tex]\sqrt{15}[/tex]
Can someone help??
What is the equation of the blue line?
Answer:
y = 4x - 3
Step-by-step explanation:
Find two point of the line
(0,-3) ; (1,1)
Use this formula
(y - y1)/(y2-y1) = (x-x1)/(x2-x1)
(y-(-3)/(1-(-3) = (x-0)/(1-0)
(y+3)/4 = x
y+3 = 4x
y = 4x -3
Answer:
y = 4x -3
Step-by-step explanation:
The y intercept is (0,-3)
Using another point on the line (1,1), we can find the slope
m = (y2-y1)/(x2-x1)
m = (1 - -3)/(1-0)
= (1+3)/(1-0)
= 4/1
The equation for a line in slope intercept for is
y = mx+b where m is the slope and b is the y intercept
y = 4x -3
Beth is covering a cylinder can't create a pencil container for a test. The cat is 15 cm tall and has a diameter of 7 cm. How much paper what she need to cover only the sides of the can.
Please help...thx
Answer:
[tex]A = 329.7[/tex]
Step-by-step explanation:
Given
[tex]h = 15[/tex] --- height
[tex]d = 7[/tex] --- diameter
Required
Paper needed to cover the sides
To do this, we simply calculate the surface area of the cylinder (without considering the top and bottom)
This is calculated as:
[tex]A = 2\pi rh[/tex]
Where
[tex]r = \frac{d}{2}[/tex]
[tex]r = \frac{7}{2}= 3.5[/tex]
The formula becomes
[tex]A = 2 * 3.14 *3.5 *15[/tex]
This gives:
[tex]A = 329.7[/tex]
For what values of x and y is PQRS a parallelogram?
Answer:
x = 3
y = 2
Step-by-step explanation:
GIVEN :-
PQ = 2y + 3QR = 4y + 1RS = y + 5PS = 4x - 3TO FIND :-
The values of x & y for which PQRS will be a parallelogramFACTS TO KNOW BEFORE SOLVING :-
In a parallelogram , pair of opposite sides are always equal in length.
SOLUTION :-
PQRS will be a parallelogram only when :-
PQ = RSand PS = QR1) Assume that PQ = RS.
[tex]=> 2y + 3 = y + 5[/tex]
[tex]=> 2y - y = 5 - 3[/tex]
[tex]=> y = 2[/tex]
∴ For y = 2 , PQ = RS.
2) Now, assume that PS = QR.
[tex]=> 4x - 3 = 4y + 1[/tex]
(Put y = 2 in the equation)
[tex]=> 4x - 3 = 4 \times 2 + 1[/tex]
[tex]=> 4x - 3 = 9[/tex]
[tex]=> 4x = 9 + 3 = 12[/tex]
[tex]=> x = \frac{12}{4} = 3[/tex]
∴ For x = 3 , PS = QR.
CONCLUSION :-
For x = 3 & y = 2 , PQRS is a parallelogram.
how many 5- digit numbers are there in all the number system
Answer:
The smallest 5 digit number is 10,000 and the greatest 5 digit number is 99,999. There are 90,000 five-digit numbers in all.
Please help me. 20 POINTS
Answer:
could you please also post what the choosing options are and then ill edit this and do it again
Step-by-step explanation:
NEEEEEEEEED HELPPP step by step
Answer:
Step-by-step explanation:
PLEASE HELP THIS IS DUE & I DON'T UNDERSTAND AND FEEL LIKE GARBAGE: On the coordinate plane shown, each grid unit represents 10 feet. Polygon QRST has vertices Q(10, 20), R(−10, 20), S(−10, −10), and T(10, −10), and represents the floor plan of a room. Find the perimeter and area of the room.
The perimeter of the room is
feet. The area of the room is
square feet.
Answer:
perimeter is the length of all sides added together, since this a square and one side is 20 length, all sides must be 20 length. 20 + 20 + 20 + 20 = 80
The area is the length times width. 20 * 20 is 400.
Step-by-step explanation:
What shape has A pair of lines that form a right angle
To compare the effectiveness of two treatments, researchers conducted a well-designed experiment using a randomized block design in which the subjects were blocked by age-group (under 40 years and 40 years or older). Which of the following must be true about the randomized block design of the experiment?
(A) The number of subjects in each block is different.
(B) Treatments are randomly assigned to subjects within each block.
(C) The design cannot have a control group because subjects are blocked by age-group.
(D) The experiment uses a matched-pairs design, where subjects from one block are paired with subjects from the other block.
(E) The subjects in one block receive one treatment, and the subjects in the other block receive the other treatment.
Answer:
(B) Treatments are randomly assigned to subjects within each block.
Step-by-step explanation:
In the case when the comparison of the treatments should be done so the researcher want to conducted the experiment where the subjects were blocked by the age group so here the option b is considered as in this the treatments would be allocated on the randomly basis to the subject with respective to the each and every block
Rest of the options are wrong as the number of subjects are same, the design have the control and there is same replication of the number
A marketing research company desires to know the mean consumption of milk per week among people over age 31. A sample of 343 people over age 31 was drawn and the mean milk consumption was 4.4 liters. Assume that the population standard deviation is known to be 0.9 liters. Construct the 90% confidence interval for the mean consumption of milk among people over age 31. Round your answers to one decimal place.
Answer:
(4.3 ; 4.5)
Step-by-step explanation:
Given :
Sample size, n = 343
Sample Mean, xbar = 4.4
Standard deviation, σ = 0.9
Zcritical at 90%
Using the relation :
Xbar ± Margin of error
Margin of Error = Zcritical * σ/√n
Margin of Error = 1.645 * (0.9/√343)
Margin of Error = 0.0799394
Lower boundary = 4.4 - 0.0799394 = 4.320
Upper boundary = 4.4 + 0.0799394 = 4.480
(4.320 ; 4.480)
Answer the questions below.
(a) A pizza parlor has a choice of 11 toppings for its pizzas. From these 11 toppings, how many
different 8-topping pizzas are possible?
(b) 50 athletes are running a race. A gold medal is to be given to the winner, a silver medal is to be
given to the second-place finisher, and a bronze medal is to be given to the third-place finisher.
Assume that there are no ties. In how many possible ways can the 3 medals be distributed?
✺◟(∗❛ัᴗ❛ั∗)◞✺ ( T_T)＼(^-^ ) ( T_T)＼(^-^ ) ᕙ( • ‿ • )ᕗ (┛◉Д◉)┛彡┻━┻ ᕙ( • ‿ • )ᕗ ᕙ(＠°▽°＠)ᕗ (ノT＿T)ノ ＾┻━┻ (╯°口°)╯︵ ┻━┻ ᕙ(＠°▽°＠)ᕗ (ノT＿T)ノ ＾┻━┻ (╯°口°)╯︵ ┻━┻ ᕙ(＠°▽°＠)ᕗ (┛◉Д◉)┛彡┻━┻ (ノT＿T)ノ ＾┻━┻ (ノT＿T)ノ ＾┻━┻ (┛◉Д◉)┛彡┻━┻ ᕙ(＠°▽°＠)ᕗ (ノT＿T)ノ ＾┻━┻ (╯°口°)╯︵ ┻━┻ ᕙ(＠°▽°＠)ᕗ (ノT＿T)ノ ＾┻━┻ (╯°口°)╯︵ ┻━┻ ᕙ(＠°▽°＠)ᕗ (ノT＿T)ノ ＾┻━┻ (╯°口°)╯︵ ┻━┻ ᕙ(＠°▽°＠)ᕗ (ノT＿T)ノ ＾┻━┻ (╯°口°)╯︵ ┻━┻
what is the range of 0 and 8
Answer:
8
Step-by-step explanation:
range=highest number - lowest number
=8 - 0
=8
Solve the simultaneous equation
2x-3y =8 x+3y=14
Use elimination method....
Answer:
x = 22/3 y = 20/9
Step-by-step explanation:
2x-3y =8 x+3y=14
Add the two equations together to eliminate y
2x-3y =8
x+3y=14
-------------
3x +0y = 22
Divide each side by 3
3x/3 = 22/3
x = 22/3
Then take the second equation and multiply by -2 and add to eliminate x
2x-3y =8
-2x-6y=-28
----------------------
-9y = -20
Divide by -9
-9y/-9 = -20/-9
y = 20/9
x = 22/3 y = 20/9
the length of a rectangle is four times it's width.if the perimeter is 70cm. Calculate the length and area of the rectangle
Answer:
length=28 cm
the area = 196 cm²
Step-by-step explanation:
length = 4 × width
2×(4w+w) = 70
2×5w=70
10w=70
w= 7 cm
length = 4×7 = 28 cm
the area = 28 ×7 = 196 cm²
(5-^2)-^4 PLEASE TELL ME EHSY THIS IS
390625
^if that’s what you meant in the picture cause your question was confusing
Let f(x)=x3+9x2−81x+14. (a) Use the definition of a derivative or the derivative rules to find g
Answer:
[tex]g=6x+18[/tex]
Step-by-step explanation:
From the question we are told that:
Function
[tex]f(x)=x^3+9x^2−81x+14[/tex]
Generally 1st derivative f'(x) of Fuction f(x) is
[tex]f'(x)=3x^2+2*9(x)-81[/tex]
[tex]f'(x)=3x^2+18(x)-81[/tex]
Generally 2nd derivative f''(x) of Fuction f(x) is
Where
[tex]f''(x)=g[/tex]
Therefore
[tex]g=3x^2+18(x)-81[/tex]
[tex]g=2*3x^1+18[/tex]
[tex]g=6x+18[/tex]
Alice deposited 600 dollars in a new savings account, no other deposits were made, after 3 months interest was computed at an annual interest rate of 3 1/2 percent. how much interest did her money earn?
Answer:
: Gumuhit ng tatlong bagay na sa alam mo ay naging epekto ng digmaan. Iguhit ito Sa loob
ng mga bilog.
Step-by-step explanation:
Let's Write!
Directions: Write at least a five-sentence paragraph about the issue conveyed in the
picture using a pattern of idea development with its appropriate grammatical signals. A
rubric is given below for your guidance. Write your paragraph on a separate sheet of
paper.Directions: Write the word "TRUE” if the statement is true and write "FALSE” if the statement
is false. Write your answer on your answer sheet.
1. Always follow the routine “clean up while in use and clean up before keeping it”.
2. Manufacturer's instructions for operation and maintenance should be followed.
3. Employers have some control over potential hazards.
4. Before the vacuum cleaner becomes overloaded, throw dust bags after each use.
5. For the equipment with wheels, clean and check wheel-driven gears.
6. For proper storage/safekeeping of hand tools and equipment, surfaces of cutting tools
should be displayed for easy used and reach.
7. Only qualified people should carry out the maintenance and they should also keep
records of their inspections.
8. Check-up equipment irregularly to prevent serious breakdown.
9. Place guards on machinery to protect fingers and limbs.
10. Store electrical equipment outdoors.Directions: Write the word "TRUE” if the statement is true and write "FALSE” if the statement
is false. Write your answer on your answer sheet.
1. Always follow the routine “clean up while in use and clean up before keeping it”.
2. Manufacturer's instructions for operation and maintenance should be followed.
3. Employers have some control over potential hazards.
4. Before the vacuum cleaner becomes overloaded, throw dust bags after each use.
5. For the equipment with wheels, clean and check wheel-driven gears.
6. For proper storage/safekeeping of hand tools and equipment, surfaces of cutting tools
should be displayed for easy used and reach.
7. Only qualified people should carry out the maintenance and they should also keep
records of their inspections.
8. Check-up equipment irregularly to prevent serious breakdown.
9. Place guards on machinery to protect fingers and limbs.
10. Store electrical equipment outdoors.WORK #1
Direction: List 1 Digestive System disease. Identify its causes, symptoms, and treatment. Use the template
below.
Digestive Disease
Causes
Symptoms
TreatmentWRITTEN WORK #1
Direction: List 1 Digestive System disease. Identify its causes, symptoms, and treatment. Use the template
below.
Digestive Disease
Causes
Symptoms
Treatment
what is the formula for finding the height of a sphere? No links. Thanks in advance.
Step-by-step explanation:
what is the formula for finding the height of a sphere?
H → 2r
Answer:
The height can be represented as the diameter of the circle.
Step-by-step explanation:
A circle's height can be represented as a diameter because it is the distance between one end of the circle to the other end as it passes through it's center. So it now depends on the parameters given to calculate the diameter using the appropriate formulae.
help pls what is he surface area measured in square centimeters, of the shape
below do not include units in your answer
Answer:
Solution given:
l=8cm
b=8cm
h=3cm
now
total surface area=2(lb+bh+lh)
=2(8*8+8*3+8*3)=224cm²
224 cm² is a required volume.
In a class of students, the following data table summarizes how many students play
an instrument or a sport. What is the probability that a student plays a sport given
that they play an instrument?
Plays an instrument Does not play an instrument
Plays a sport
8
2
Does not play a sport
11
6
Answer:
ok
Step-by-step explanation:
HELPPP PLSS
DUE TN
WILL GIVE BRAINLIST
Answer:
49/144
Step-by-step explanation:
Answer:
49/144
Step-by-step explanation:
One pipe can fill a tank in 4 hours. A second pipe also requires 4 hours, but a third
needs three hours. How long will it take to fill the tank if all three pipes are open?
Answer:
Step-by-step explanation:
We will use the idea here that the first 2 pipes can get 1/4 of the job done in an hour, and that the third pipe can get 1/3 of the job done in an hour. We need to know then the number of hours it will take to fill the tank if all 3 work together. The equation looks like this:
[tex]\frac{1}{4}+ \frac{1}{4}+ \frac{1}{3}= \frac{1}{x}[/tex] Now we find a common denominator and solve for x. The common denominator is 12x. Multiplying everything by 12 x gives us
3x + 3x + 4x = 12 and
10x = 12 so
x = 1.2 hours
Answer:
1.2 hours
Step-by-step explanation:
we need to see how much each pipes does in the same amount of time
The least common multiple of 3 hours and 4 hours is 12 hours
In 12 hours:
Pipe 1 at 4 hours to fill a tank fills 3 tanks
Pipe 2 at 4 hours to fill a tank fills 3 tanks
Pipe 3 at 3 hours to fill a tank fills 4 tanks
All three pipes can fill 10 tanks in 12 hours
12 hours/10 tanks = 1.2 hours to fill one tank
-------------------------
Doing just the math
1/4 + 1/4 + 1/3 = x
3/12 + 3/12 + 4/12 = 10tanks/12 hours
12hours/10tanks = 1.2 hours
How do you find the cosine and tangent of an angle if you are given the
sine? You may make up (if you like) an example of this to help
illustrate (remember, sine can only be between -1 and 1).
Answer:
under
Step-by-step explanation:
We have the sin²x+cos²x=1, so we can find the cosine if we have the sine,after we have sin,cos, easily to find the tangent by usingtangent =Sine/cosine
HELP HELP HELP
Identify the maximum, minimum, y-intercept,
x-intercept, and increasing and decreasing interval on
the graph below.
Answer:
Step-by-step explanation:
Maximum is at (1.5,14).
Minimum is at (4, 0).
y-intercept is at (0, 9)
x intercept is at ( 4, 0).
increasing from x = 0 to x = 1.5 and x = 0 to 6.
decreasing from x = 1.5 to x = 0
According to this diagram, what is tan 62°?
Answer:
12
Step-by-step explanation:
i think that is the answer
) Which expressions are equivalent to 35? Choose ALL that apply.
9.27
81.3
3.5
3.3.3.3.3
9.9
Answer:
[tex](a)\ 9 * 27[/tex]
[tex](b)\ 81 * 3[/tex]
[tex](d)\ 3*3*3*3*3[/tex]
Step-by-step explanation:
Given
[tex]3^5[/tex]
Required
Select equivalent expressions
[tex](a)\ 9 * 27[/tex]
Express as exponents
[tex]9 * 27 = 3^2 * 3^3[/tex]
Apply law of indices
[tex]9 * 27 = 3^{2+3[/tex]
[tex]9 * 27 = 3^{5[/tex]
[tex](b)\ 81 * 3[/tex]
Express as exponents
[tex]81 * 3 = 3^4 * 3[/tex]
Apply law of indices
[tex]81 * 3 = 3^{4+1[/tex]
[tex]81 * 3 = 3^5[/tex]
[tex](c)\ 3*5[/tex]
Solve
[tex]3*5 = 15[/tex]
[tex](d)\ 3*3*3*3*3[/tex]
From calculator, we have
[tex]3*3*3*3*3=243[/tex]
Express as exponents
[tex]3*3*3*3*3=3^5[/tex]
[tex](e) 9 * 9[/tex]
Express as exponents
[tex]9 * 9= 3^2 * 3^2[/tex]
Apply law of indices
[tex]9 * 9= 3^{2+2[/tex]
[tex]9 * 9= 3^4[/tex]
Hence, a, b and d are true
Help me please :) thanks
Answer:
20 and 90
Step-by-step explanation:
38°
24 in
A restaurant owner plans to install this bicycle rack in front of her restaurant. In order to meet city safety requirements, the base
of the bicycle rack cannot exceed 20 inches so as to not obstruct pedestrians. Will this bicycle rack be approved by the city?
Answer:
39
Step-by-step explanation:
Yes, the base of the bicycle rack measures about 15 inches.
Whta is the sin angle?The sine (sin) of an acute angle in a right angled triangle is the ratio between the side opposite the angle and the hypotenuse of the triangle.
A restaurant owner plans to install this bicycle rack in front of her restaurant.
In order to meet city safety requirements, the base of the bicycle rack cannot exceed 20 inches so as to not obstruct pedestrians.
The base of the bicycle is ;
In the right angle triangle;
[tex]\rm = sin38 \times 24\\\\ =0.61 \times 24\\\\=14.77[/tex]
Yes, the base of the bicycle rack measures about 15 inches.
Hence, Yes, the base of the bicycle rack measures about 15 inches.
Learn more about sin angle here;
https://brainly.com/question/18597026
#SPJ2
How does the graph of the function g(x)=2^x-4 differ from the graph of f(x)=2^x
Answer:
The graph of g(x) is the graph of f(x) moved down 4 units.
Step-by-step explanation:
Subtracting a function by a constant:
Subtracting a function by a constant x is the same as moving the function down x units.
In this question:
[tex]f(x) = 2^x[/tex]
[tex]g(x) = 2^x - 4[/tex]
Thus, the graph of g(x) is the graph of f(x) moved down 4 units.