Answer:
y=-2+1
Step-by-step explanation:
X
3
7
+
Simplify:X-3 X+4 x²+x-12
Rewrite the expression using the LCD:
Ox(x+4)-3(x-3)+7
(x-3)(x+4)
O x(x+4)+3(x – R+7
(x-3)(x+4)
x(x+4)+3(x-3) -7
(x-3)(x+4)
Answer: it’s a
Step-by-step explanation:
Answer: A for the first part and B for the second part
Step-by-step explanation:
Find cos 0 for 0 = 30°
The 0 has a weird line through it
Answer: [tex]\frac{\sqrt{3}}{2}[/tex]
======================================================
Explanation:
The symbol [tex]\theta[/tex] is the greek letter theta. It's often used in trigonometry for angles.
In this case, [tex]\theta = 30^{\circ}[/tex]
So,
[tex]\cos(\theta) = \cos(30^{\circ}) = \frac{\sqrt{3}}{2}[/tex]
You'll need to use a reference sheet or the unit circle to determine the value of cos(30). Or you could use a 30-60-90 triangle template.
When using the unit circle, look in the upper right quadrant (which is quadrant 1). The angle 30 degrees is in this quadrant. Locate the terminal point and note how [tex]\frac{\sqrt{3}}{2}[/tex] is the x coordinate of the terminal point. This is due to [tex]x = \cos(\theta)[/tex]
Side note: [tex]\frac{\sqrt{3}}{2} \approx 0.866025[/tex]
Peter made 19 1/8 cups of chili for the football game. If 14 3/4 cups of the chili were eaten how many cups of chili did peter have left over
Answer:
Step-by-step explanation:
The amount of increase , divided by the original amount, equals the ____of increase
Answer: percent
Step-by-step explanation: i know stuff and btw i hope this helps
Subtract (−x − 2) − (4x + 3).
Answer:
-5x - 5
Step-by-step explanation:
1. Distributive Property
-x - 2 - 4x - 3
2. Combine like terms
-5x - 5
Hope this helped!
A Stock company was selling at 28$ a share a month later it was selling at 21$ a share what is the percent loss ?
Answer:
25% loss
Step-by-step explanation:
21 is 75% of 28, because 7*3 = 21 and 7*4 = 28
100%-75%=25%
Hope this helps!
Answer:
the answer is 50 %
Step-by-step explanation:
C.P x (100+ (P/L) ) over 100 = S.P
C.P x 50 over 100 = 8500
C.P = 8500 x 100 over 50 = 17000 .Rs.
hope it helps make me the brainliest now !!!!!!!
5. Company “A” charges $80 a month for
their cell phone plan and $5 for a 100MB
of Data. Company “B” charges $60 a
month for their cell phone plan and $10 for
a 100MB of Data. How many mega bytes
of data used would make the cost from
either company equal?
Answer:
400 megabytes of data used will make the cost from either company equal.
Step-by-step explanation:
Given that:
Per month charges of Company A = $80
Charges of 100 MB = $5 = [tex]\frac{5}{100}=\$0.05\ per\ MB[/tex]
Let,
x be the number of MBs consumed.
y be the total charges.
y = 0.05x+80
Per month charges of Company B = $60
Charges of 100 MB = $10 = $0.1 per MB
y = 0.1x+60
For equal charges;
0.05x+80 = 0.1x + 60
80-60 = 0.1x-0.05x
20 = 0.05x
[tex]\frac{0.05x}{0.05}=\frac{20}{0.05}\\x=400[/tex]
Hence,
400 megabytes of data used will make the cost from either company equal.
I = $60, P = $750, r = 4%, t = ?. Find the amount of time.
Answer:
you need to be more specific.
Please help!!! I’ll mark brainliest!! (Look at picture)
Answer:
[tex]\huge\boxed{\sf (x*4) + (x*5) = 54}[/tex]
Step-by-step explanation:
[tex]\sf x(4+5) = 54\\\\Applying \ distributive \ property\\\\(x*4) + (x*5) = 54\\\\Distributive\ Property\ is:\\\\A(B+C) = (A*B)+(A*C)\\\\\rule[225]{225}{2}[/tex]
Hope this helped!
~AH1807Solve the system of linear equations by elimination.
3x−30=y
7y−6=3x
please explain
Answer: y = 6; x = 12
Step-by-step explanation:
3x - 30 = y
Change this into an equation where x and y are in the same side.
3x - 30 = y
Subtract y from both sides
3x - y - 30 = 0
Add 30 to both sides
3x - y = 30
7y - 6 = 3x
Do the same thing I did to the first equation
7y - 6 = 3x
Subtract 3x from both sides
-3x + 7y - 6 = 0
Add 6 to both sides
-3x + 7y = 6
We can now use the system of elimination to find x and y.
3x - y = 30
-3x + 7y = 6
After adding both equations, you get:
6y = 36
Divide 6 from both sides
y = 6
Since we now know y, we can solve for x.
3x - 30 = y
Substitute y for 6
3x - 30 = 6
Add 30 to both sides
3x = 36
Divide both sides by 3
x = 12
Hope this helped!
Answer:
[tex]x = 12.y = 6[/tex]
Step-by-step explanation:
Restructuring
[3x - 30 = y
-3x - 6 =7y
[tex] \frac{ - 36}{ - 6} = \frac{ - 6y}{6} [/tex]
y=6
Sub 6 in equ II
7(6)-6=3x
[tex] \frac{36}{3} = \frac{3x}{3} [/tex]
x=12
if 15.5 gallons are $24.16, how much is it for one gallon
Answer:
$1.55870968
Step-by-step explanation:
24.16dollars/15.5gallons = 1.55870968dollars/gallon
Word Problem (x and y intertcept)
A doll company can make a doll at a cost of P35 per doll. If the selling of the doll is x pesos and the number of dolls sold per month is 500 - x,
a. Express the monthly profit in pesos as a function of x.
b. If the selling price of the doll is P85, determine the monthly profit. Use the result in letter a.
Answer:
a. Monthly profit is
(x-35)(500-x)
b. given x = 85, the profit is 20,750 pesos
Step-by-step explanation:
a. The monthly profit is the selling price - cost price
The cost price for the number of dolls made will be ;
35(500-x)
The value of the amount we are selling all is;
x(500-x)
So the monthly profit would be;
x(500-x)-35(500-x)
= (x-35)(500-x)
b. Given the selling price we 85 , we want to calculate the monthly profit
From
what we have, x will be 85
Substituting in the equation we have for A above, we have that;
(85-35)(500-85)
= 50* 415 = 20,750 pesos
What is the equation of the circle shown below?
Step-by-step explanation:
Equation of circle: (x + 2)² + (y - 2)² = r²
Radius of the circle is 3 (from -2 to 1).
Hence we have
(x + 2)² + (y - 2)² = 3² or (x + 2)² + (y - 2)² = 9.
sinA.secA
__________ = tan²A
cosecA.cosA
Answer:
Please check explanations for answer
Step-by-step explanation:
Here, we want to show that the left hand side equals the right hand side
We can express the left hand side as:
sin A/ cos A * sec A/cosec A
kindly recall that;
sin A/cos A = tan A
Also;
sec A = 1/ cos A
cosec A = 1/ sin A
Thus, we have that ;
tan A * 1/cos A / 1 / sin A
= tan A * sin A/cos A
This is;
tan A * tan A = tan^2 A
Please help! Will give brainiest! HIGH POINTS
Evaluate each of the following using ...
Answer:
F(0)= 0, 0
F(3)= -21, 3
F(2)= -12, 2
Step-by-step explanation:
explanation
Answer the following Question with Appropriate Explanation
Answer:
option is B)
Step-by-step explanation:
2x is a perfect square. but x is not a perfect square, this brings us to the conclusion tht prob x is 2.
2x = 4
hence correct option is B) 4x is a perfect square, as 4x4=16, which is a perfect square...
You might need:
Calculator
Find the zeros of the function.
Enter the solutions from least to greatest.
g(x) = 4x2 – 484
lesser x =
greater 2 =
Answer:
x = -11, x = 11
Step-by-step explanation:
Zeros are when g(x) = 0:
[tex]0=4x^{2} -484[/tex]
[tex]0=4(x^{2} -121)[/tex]
[tex]0=x^{2} -121[/tex]
Factor:
[tex]0=(x-11)(x+11)[/tex]
[tex]0=x+11, 0=x-11[/tex]
[tex]x=-11, x=11[/tex]
Write the rule for the linear function. Remember a function rule is written using f(x)
Answer:
The rule for the linear function wil be:
f(x) = xStep-by-step explanation:
We know that linear function can be represented using the slope-intercept formula
y = mx+b
where m is the slope and b is the y-intercept
Given the function is linear
Taking two points
(0, 0)(1, 1)Finding the slope between (0, 0) and (1, 1)
Using the formula
Slope = m = [y₂ - y₁] / [x₂ - x₁]
= [1 - 0] / [1 - 0]
= 1 / 1
= 1
Thus, the slope of the line = m = 1
We know that the value of y-intercept can be determined by setting x = 0, and determining the corresponding value of y.
From the graph, it is clear
at x = 0, y = 0
Thus, the y-intercept b = 0
Now, substituting m = 1 and b = 0 in the slope-intercept form of linear function
y = mx+b
y = (1)x + 0 ∵ m = 1, b = 0
y = x
f(x) = x ∵
Therefore, the rule for the linear function wil be:
f(x) = xThe original price of a video game is $32.99 before tax. When Mario bought the video game it rang up as $26.39 before tax. He then paid 8% sales tax on the discounted price.
Part A: What is the percent discount on the game? Show all work and steps in your solution. (5 points)
Part B: What is the total amount that Mario paid for the video game including tax? Show all work and steps in your solution.
Answer:
Part A: The percent discount on game is 20%.
Part B: Mario paid a total of $28.50 including sales tax.
Step-by-step explanation:
Given that:
Part A:
Original price of video game = $32.99
Discounted price = $26.39
Amount of discount = 32.99 - 26.39 = $6.60
Discount percent = [tex]\frac{Amount\ of\ discount}{Original\ price}*100[/tex]
Discount percent = [tex]\frac{6.60}{32.99}*100 = 0.20*100[/tex]
Discount percent = 20%
Part B:
Sales tax = 8% of discounted price
Amount of sales tax = [tex]\frac{8}{100}*26.39 = 0.08*26.39[/tex]
Amount of sales tax = $2.11
Total amount = $26.39 + $ 2.11 = $28.50
Hence,
Part A: The percent discount on game is 20%.
Part B: Mario paid a total of $28.50 including sales tax.
Find the equation of the straight line that is parallel to 2y - x = 7 and bisects the line joining the points (3,1) and (1,-5).
Answer:
yes that is completely correct
Look at the graph shown below:
Which equation best represents the line?
A: y = 1 over 3 x - 1
B: y = 3x - 1
C: y = -x + 1 over 3
D: y = 3x + 1
OMG PLEASE HELP QUICK 7TH GRADE LEVEL
Answer:
26 Feet
Step-by-step explanation:
6 feet 6 inches x 4
Answer:
That would be about 26 feet.
Step-by-step explanation:
Use the word virtue in a complete and strong sentence about someone you know.
Answer:
Step-by-step explanation:
My friend is a virtue because he is very upright. The patience that he has is very virtuous, and during school, he shows high moral standards and you can see it by the grades he gets.
Hope this helped a little!
Sarah started collecting coins last year.
She already collected 58, when she received another 21 from her parents.
She is expecting to get 12 more for her birthday next week.
How many coins is she going to have at the end of next week if her expectation is right?
Answer:91 coins
Step-by-step explanation:You add them all together the numbers which are 58 and 21 and 12.It gives you 91 coins in total.
Hope it helps :)
Based on the graph shown, which features are correctly stated?
Answer:
A, B, & C.
that's features that correctly stated.
Will mark brainliest
A team spent 20 minutes on passing drills and 40 minutes on shooting drills.
What is the ratio of time spent on shooting drills to time spent on passing drills?
1 to 3
3 to 1
2 to 1
1 to 2
Paul's Pizzeria sells 45 cheese pizzas and 20 pepperoni pizzas each week.
What is the ratio of cheese pizzas to pepperoni pizzas sold each week by Paul's Pizzeria?
4:2
3:1
9:4
9:2
Which simplified ratio correctly compares 12 yards to 20 feet?
3:5
5:3
5:9
9:5
Answer:
1. 1 to 2 2. 9 to 4 3. 5 to 3
Step-by-step explanation:
Its just half which is one to 2, this one is pretty simple, so trust me
you just find the highest number that can go into both ones.
12 yards and 20 feet, one yard in 3 feet
Answer:
the ratio is 20
Over 40
Step-by-step explanation:
it’s logical I got it correct and you just put them together
What does sas stand for
Answer: Statistical Analysis System
Step-by-step explanation:
3)Hubba Bubba Bubble gum
was $0.25 thirty years ago.
Today it costs $1.39. What is
the percent increase? Round
to the nearest hundredth (if
necessary).
V
Answer:
456% increase
Step-by-step explanation:
Step one:
given data
Hubba Bubba Bubble gum was $0.25 30 years ago
Today it costs $1.39.
Required
The percentage increase
Step two:
Percentage increase= change in price/ old price *100
Percentage increase= 1.39-0.25/0.25 *100
Percentage increase=1.14/0.25 *100
Percentage increase=4.56*100
Percentage increase=456%
Some helpp pleaseeeee
Step-by-step explanation:
( 1.5 * 10^0 ) * ( 2.0 * 10 ^ - 5)
= 1.5 * 1 * 2.0 * 10 ^ - 5
= 3 * 10^-5
Hope it will help :)
28 POINTS!!!!!! Solve for x. Please Help
Answer:
The third choice, [tex]x\leq -8[/tex]
Step-by-step explanation:
One way to do it is to substitute in the potential answers. I'll show you here.
Choice 1
[tex]2(-2)+3\leq (-2)-5[/tex]
[tex]-4+3\leq -2-5[/tex]
[tex]-1\leq -7[/tex]
We can see that this is false, so the answer cannot be choice 1.
Choice 2
[tex]2(2)+3\leq (2)-5[/tex]
[tex]4+3\leq 2- 5[/tex]
[tex]7\leq -3[/tex]
This is also false, so the answer cannot be choice 2.
Choice 3
[tex]2(- 8)+ 3\leq (-8)-5[/tex]
[tex]-16+3\leq -8-5[/tex]
[tex]-13\leq -13[/tex]
This is true. Let's see if choice 4 works.
Choice 4
[tex]2(8)+3\leq (8)-5[/tex]
[tex]16+3\leq 8-5[/tex]
[tex]19\leq 3[/tex]
This is not true. Therefore, 3 is correct.