The cost of a tablet after a 20% discount can be represented by the expression t-0.2t. Simplify the expression
Answers
Steps are on paper.
Step-by-step explanation:
simplified 0.16t I used a simplify calculator
Related Questions
I need help on this. Can someone pls help me
Answers
Answer:
2
2
3x
Step-by-step explanation:
1.) we can divide both sides by three to get
(3x+6)/3=x+?
x+2= x+?
from here we can tell that ?=2
2.) Let's start by dividing both sides by negative one
(x-2)/ -1= ?-x
simplify
-x+2= ?-x
Here we get ?= 2
3.)
Let's mulitply both sides by 5 to get
15x-10= 5(?-2)
15x-10 = 5?-10
15x= 5?
3x= ?
the answer here is 3x
Write an equation of a line in slope-intercept form given the slope (m) and the y-intercept (b).
Slope, m =-
y-intercept, b =7
7
Answers
Step-by-step explanation:
y = mx + b
y = -7x + 7
this assumes m = - 7 , it got chopped off, otherwise what ever slope is change the first 7 for that number.
What are the lengths of the legs of a right triangle in which one acute angle measures 19° and the hypotenuse is 15 units long?
OA 9 units, 12 units
OB. 11 units, 10.2 units
OC 4.9 units, 15.8 units
OD 4.9 units, 14.2 units
OE 5.2 units, 14.1 units
Answers
Answer:
D) 4.9 units, 14.2 units
Step-by-step explanation:
I assume that we will be using trigonmetry as this is a right triangle
The two ratios that will be used are CAH (Cosine = adjacent/hypotneuse)
and SOH (Sine = opposite/hypotneuse)
While it does not matter which acute angle the problem is to, I decided to set up the triangle like so in the picture attached
This means x = adjacent and y = opposite here
Now we just need to plug in the numbers to find the missing variables
x) cos(19) = x/15
(15)cos(19) = x/15(15)
~14.2 = x
y) sin(19) = y/15
(15)sin(19) = y/15(15)
~4.9 = y
Hope that helps a bit
I took waaay too long to explain this lol
The value of x for the triangle is 14.2 and the value of y is 4.9. The correct option is D.
What is trigonometry?Trigonometry is the branch of mathematics that establishes a relationship between the sides and angles of a right-angle triangle.
The mathematical trigonometric functions, sometimes referred to as circle, angle, or goniometric functions, relate the angle of a right-angled triangle to the ratios of its two side lengths.
Calculate the value of x as below,
xcos(19) = x/15
(15)cos(19) = x/15(15)
14.2 = x
The value of y is calculated as,
ysin(19) = y/15
(15)sin(19) = y/15(15)
4.9 = y
To know more about trigonometry follow
https://brainly.com/question/20726216
#SPJ7
which phrases represent the expression k/2 - 5
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Answer:
K over two minus five
Step-by-step explanation:
I think?
Find the circumference of the circle.
4 mi
Find The circumference
(Type an exact answer in terms of pie)
Answers
Answer:
Circumference of a circle-
2 x Pi x Radius
2x Pi x 4
8Pi
ANSWER-8Pi
Hope it Helps!!
Please please give answer
Answers
Answer:
40 square cm
Step-by-step explanation:
2(l + b) = 28
(l + 4) = 28/2
l + 4 = 14
l = 14 - 4
l = 10 cm
Area = lb = 10*4 = 40 square cm
Help needed with this
Answers
Answer:
Choice 3 is not a function.
For a set of coordinates to be a function, there must be exactly one y-value for every x-value.
For choice 3, we see that the x-coordinate of "1" has two y-values, 3, and 7.
This means, that choice 3 is NOT a function.
Let me know if this helps!
4. Solve for x in each diagram.
a.
X°
108°
156°
Answers
Answer:
x = 48°Step-by-step explanation:
108° + 24° + x° = 180°132° + x° = 180°x° = 180° - 132°x= 48°MARK ME AS BRAINLISTPLZ FOLLOW MRcan someone pls help me on this
Answers
Answer:
48
Example:
Just multiply them.
Answer:
If you multiply them all together it equals 48 degrees
Evaluate the expression 7'2/x'2-2 for X=3
Answers
Answer:
7
Step-by-step explanation:
7²÷3²-2 = 49/9-2 =49/7 =7
A construction worker drops a hammer while building the Grand Canyon skywalk 4,000ft above the Colorado River. Use the formula t=h−−√4 to find how many seconds it takes for the hammer to reach the river. Round your answer to the nearest tenth of a second.
Answers
Answer:
15.8
Step-by-step explanation:
We are asked to find how many seconds it takes for an object to fall from a height of 4,000ft. We will use the given formula, t=h−−√4. Substituting h=4,000, we find
t=4000−−−−√4=15.8
So, the hammer reaches the river after 15.8 seconds.
A tape manufacturer has created a new formula that is supposed to be more adhesive on all types of surfaces. Managers wish to conduct an experiment on aluminum and wood to see how well the tape sticks to them. To determine this, they take a random sample of tape with the new formula and use four different weights taped to random places on each of the two surfaces. They will measure how long the tape holds the weights on each surface and compare the times. Which of the following best describes this experiment?a. This is an observational study.b. This is an experiment with blocking.c. The type of surface is a confounding variable.d. This is a double-blind experiment.e. This is a randomized experiment resulting in the placebo effect.
Answers
Answer:
This is an experiment with blocking ( B )
Step-by-step explanation:
The best way to describe this experiment is an experiment with blocking this is because the Type of surface where the tape is been tested can be considered a blocking variable while the weights can be considered as treatments
A blocking variable is a variable used in experiment which is not of primary interest to the experiment observer ( I.e. The tape is supposed to hold on all types of surfaces and not just on Aluminum and wood surface )
2x-5y + 11=0 3x-4y=18
Answers
Answer:
x = 134/7
y = 69/7
Step-by-step explanation:
let the x or y have a same coefficient to have a better way to solve it
There are 1/6 gallons of water in a 2/3 gallon container. What fraction of the container is filled?
Answers
Answer:
1/4
Step-by-step explanation:
2/3 multiply top and bottom of fraction by 2
4/6 is the capacity of the container
1/6 is filled
so 1/4 of the container is filled
Answer:
1/4
Step-by-step explanation:
it takes 2/6 per each 1/3 of a gallon there for there would be 4/6 in 2/3
SOMEONE PLS HELP WITH THIS! Picture is provided
Answers
Step-by-step explanation:
to simplify this try making table and substitute the value of X and get y
A restaurant has 23 tables. Some of the tables seat 4 persons and the rest seat two persons. In all, 76 persons can be seated at once. How many tables of each kind are there?
Answers
Answer:
15 tables with 4 seats and 8 tables with 2 seats.
Step-by-step explanation:
x = 4 seated tables
y = 2 seated tables
x + y = 23
4x + 2y = 76
Multiply first equation by -2 to cancel y's:
-2x - 2y = -46
4x + 2y = 76
2x = 30
x = 30 / 2
x = 15
And we said 23 tables so:
23 - 15 = 8
x = 15
y = 8
asap! add the formula too please!
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Answer:
Step-by-step explanation:
PLEASE HELP IM ON A TIME LIMIT!!!
Answers
Answer:
i answered the other question like this check your other question for the answerrs
Step-by-step explanation:
I need this done in 10mins
Answers
Answer:
Socko gained 3/5 kg from month 1 to month 2.
Step-by-step explanation:
Socko mass was 3/10 kg in month 1 and 9/10 kg in month 2.
The amount of mass he gained is k.
3/10 + k = 9/10
Subtract 3/10 from both sides.
k = 6/10
Reduce the fraction.
k = 3/5
Answer: Socko gained 3/5 kg from month 1 to month 2.
Timothy worked 9 hours and earned $7425. How much does he make per
nour at his job?
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Given the parent functions f(x) = 3x + 2 and g(x) = 5^x - 10, what is g(x) – f(x)? (2 points)
оа
g(x) = f(x) = 5^x- 8 - 3x
Ob
g(x) = f(x) = 5^x - 12 - 3x
ос
g(x) – f(x) = 3x - 8-5^x
Od
g(x) – f(x) = 3x + 12-5^x
Answers
Which is larger:
A. the absolute value of 12
B. the absolute value of -15
Answers
Answer:
A
Step-by-step explanation:
I am pretty sure this is right and I hope this helps
Answer:
B. the absolute value of -15
Step-by-step explanation:
Ok so,
lets rewrite them for it to make sense
| 12 | = 12
| - 15 | = 15
so now the question is "which is larger 12 or 15?" and the answer is 15 obvs lol
" | " = means absolute value
hope this helps have a good day!
Does the graph represent a function? (will give BRAINLIEST)
Answers
Answer:
yes, because they are both equal angles.
Step-by-step explanation:
though if it was a curved line it would be a true function
Interest of 200 million dollars 53% and 22 years will give brainliest to correct answer
Answers
Answer:
$2,313,150,687,166.22 is the interest accrued.
Step-by-step explanation:
Hope this helps
Answer:
$2,313,150,687,166.22 is the interest
Step-by-step explanation:
hope this helps.
3.- Una persona pinta el interior de un cuadrado de lado 15m, si antes de pintarlo
comete un error al medir la longitud de los lados de 0.2m, resolver por diferencial
(a).- ¿Cuál es el error máximo en el área de pintado (cuanto de diferencia de área
pinto más debido al error).
Answers
Answer: SOrry no espanypol
Step-by-step explanation:
(x^8+2x^4+1)+(2x^4+x^2+1)
Answers
Your problem → (x^8+2x^4+1)+(2x^4+x^2+1)
(x^8+2x^4+1)+(2x^4+x^2+1)
=x^8 + 2x^4 + 1 + 2x^4 + x^2+1
=x^8+2x^4+2x^4+x^2+1+1
=x^8+4x^4+x^2+2
HALPPPPP!!
Find k if the line y = kx-5 passes through the point (-6,14)
Answers
Answer:
k=-19/6
Step-by-step explanation:
y=kx-5 (-6, 14)
14=k(-6)-5
14=-6k-5
-6k=14+5
-6k=19
k=19/-6
Can Some please help
Answers
Answer:
First we need to find out how much is 1 inch in feet
80/5
=16
Now we just simply need to multiply
16x3/4
=12
Your answer is 12
Hope it Helps!!
The sum of three numbers is 123. The second number is 8 more than the first. The third number is 3 times the first. What are the numbers ?
First number: 23
Second number: 31
Third number: 69
Answers
Answer:
That is correct
Step-by-step explanation:
if you add all those numbers together, it will add up to 123... i think
help of you can.
An equation is shown below:
4x + 2(x − 3) = 4x + 2x − 11
Part A: Solve the equation and write the number of solutions. Show all the steps. (6 points)
Part B: Name one property you used to solve this equation. (4 points)
Answers
Answer:
Part A: No Solution
Part B: Distributive Property
Step-by-step explanation:
4x + 2x - 6 = 6x - 11
6x - 6 = 6x - 11
-6 ≠ -11
No Solution
Answer:
Part A. Couldn't find a variable to solve for.
This equation is invalid, the left and right sides are not equal, therefore there is no solution.
Part B. Distributive Property
Step-by-step explanation:
Simplifying
4x + 2(x + -3) = 4x + 2x + -11
Reorder the terms:
4x + 2(-3 + x) = 4x + 2x + -11
4x + (-3 * 2 + x * 2) = 4x + 2x + -11
4x + (-6 + 2x) = 4x + 2x + -11
Reorder the terms:
-6 + 4x + 2x = 4x + 2x + -11
Combine like terms: 4x + 2x = 6x
-6 + 6x = 4x + 2x + -11
Reorder the terms:
-6 + 6x = -11 + 4x + 2x
Combine like terms: 4x + 2x = 6x
-6 + 6x = -11 + 6x
Add '-6x' to each side of the equation.
-6 + 6x + -6x = -11 + 6x + -6x
Combine like terms: 6x + -6x = 0
-6 + 0 = -11 + 6x + -6x
-6 = -11 + 6x + -6x
Combine like terms: 6x + -6x = 0
-6 = -11 + 0
-6 = -11
Solving
-6 = -11
Couldn't find a variable to solve for.
This equation is invalid, the left and right sides are not equal, therefore there is no solution.
