Answer: x=-3 and y = 11
Step-by-step explanation: x+y = 8 and x-y = - 14
From first solve y = 8-x and now Insert y to later
x -(8-x) = -14. x -8+x-14. 2x = -6 and x=-3. Y = 8-x = 11
If f(x) = 5x – 2 and g(x) = x+1, find (f = g)(x).
OA. 5x - x-3
B. 5x2 +1
O C. 5x® - X-1
D. 5x4 - 2
Answer: Choice A) 5x^3 - x - 3
=================================================
Work Shown:
We subtract the two functions like so
(f - g)(x) = f(x) - g(x)
(f - g)(x) = ( 5x^3-2 ) - ( x+1 )
(f - g)(x) = 5x^3 - 2 - x - 1
(f - g)(x) = 5x^3 - x - 3 ..... choice A
Note: be sure to remember to distribute the negative to every term inside (x+1), and not just to the x only.
On tax-free weekend, Miss Bailey plans to purchase 25 iPad minis for her class. The price of an iPad mini is $329. Use a strategy to determine the amount she will spend.
Explain your reasoning using models or pictures and words.
Answer:
$8225
Step-by-step explanation:
329 (amount for each ipad mini) x 25 (amount of ipad minis Missbailey is going to buy) = 8225.
please help me Find the quotient of 24 and 12.
Answer:
2
Step-by-step explanation:
24/12 = 2
Answer:2??????? Are you dividing 24 by 12????
Step-by-step explanation:
does the method of quadratic equations apply for all equations?
Answer:
i don't think so that's why it's for quadratic and not others like linear or geometric, I might be wrong thiugh
Answer:
Look below.
Step-by-step explanation:
No, the method of quadratic equations doesn't apply for all equations. This is because the quadratic formula can only be used to solve any quadratic equation when it's in standard form. Some equations arent in the format of ax2 + bx + c = 0, meaning that you cant use these mothods on any equation.
17 gallons of water are used to completely fill 5 fish tanks. If each tank holds the same amount of water, how many gallons will each tank hold? Express your answer as a mixed number.
Answer:
3.4 or 3 and 2/5 is how much water each fish tank will hold.
Step-by-step explanation:
write an expression with the same meaning as " 7 less than the square of a number
[tex]7 < {n}^{2} [/tex]
Describe these points with a double inequality
Answer:
E
Step-by-step explanation:
so much words sis sossy
Answer:
Step-by-step explanation:
[tex]-3$<$ x\le 13[/tex]
Shane works at an electronics store. he earns 13% comission on his sales. Shane's comission this month $780. what are his total. sales for this mounth?
Answer:
$6000
Step-by-step explanation:
let's find the unit rate first
we know that 780 is 13% of all his sales so what we can do is find the unit rate
780/13=60 so 1% of all the money is $60
Now we just do simple multiplication; 60*100=6000
So the original sale was $6000
Hope this helped, have a good day!
Answer:
6000
Step-by-step explanation:
780/13 = 60 (100)
= 6000
What is the second term of this expression, 15k-5+13+k
Answer:
16k + 8
Step-by-step explanation:
Combine like terms
15k + k = 16k
-5 + 13 = 8
This is proportional, true or false? (Proportional means it has an equivalent ratio/constant rate of change/the same rate) (True=yes, it's proportional, false means it is not proportional) y = 12x
Answer:
Yes/True
Step-by-step explanation:
The given expression is :
y = 12 x
We know that, Proportional means it has an equivalent ratio / constant rate of change / the same rate.
Here,
y ∝ x
12 is the constant of proportionality
Hence, the given expression is proportional.
what is the volume of the cylinder?
Answer:
V = 17003.1
Step-by-step explanation:
Formula of the volume of a cylinder: V = pi*r^2*h
But in this case it tells you to replace pi with 3.14, so plugging in your numbers into the formula...
V = (3.14)(19)^2*(15)
= 17003.1
Notes: r = 19, because half of 38 is 19
If you have anymore questions, please ask! Cheers!
it takes 24 hours to fill a large pool with two hoses, where the water in one hose flows four times as fast as the other hose.
how long will it take the slower hose to fill the basin if the faster hose is not functioning
A-60
B-72
C-96
D-120
A student is asked to find the length of the hypotenuse of a right triangle. The length of one leg is 32 centimeters, and the
length of the other leg is 26 centimeters. The student incorrectly says that the length of the hypotenuse is 7.6 centimeters
a. Find the length of the hypotenuse of the right triangle to the nearest tenth of a centimeter
Answer:
hypotenuse = 41.2
Step-by-step explanation:
[tex]c^{2} = a^{2} + b^{2}[/tex]
[tex]c^{2} = 32^{2} + 26^{2}[/tex]
[tex]c^{2} = 1024 + 676[/tex]
[tex]c^{2} = 1700[/tex]
[tex]\sqrt{c^{2}} = \sqrt{1700}[/tex]
[tex]c = 41.23[/tex] ⇒ [tex]41.2[/tex]
I need help, I’ve been stuck on this question plz
Answer:
when distributing the first equation 1/4(8y+24) it is actually 2y+6 because 1/4*24= 6 not 8
Step-by-step explanation:
answer this in 40 seconds for brainiest:)
Answer:
15
Step-by-step explanation: multiply 3x5 lol
Look at the number line.
+++
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5
Which absolute value expression represents the distance
shown on the number line?
OA) 12.5 + 5
OB) 12.5 - 5
OC) 12.50 – 151
OD) 12.5] + 151
(I’M MARKING BRAINLIEST)
Plzzz help meeeeee!!!
Write an equation that you can use to solve for x.
Enter your answer in the box.
Answer:x= 40
Step-by-step explanation:
x+80+60= 180 (angles on a straight line)
A catering company loses $110 as a result of a delay. The 5 owners of the company must share the loss equally. Which quotient represents each owner's share of the loss? A.–110 ÷ 5 B.–110 ÷ –5 C.110 ÷ 5 D. 110 ÷ –5
Hurry!
Answer:
c
Step-by-step explanation:
110 divide it by 5 because there are 5 owners and you should get $2.2
Question 7 of 9
Diego is making a trail mix for him and his friends to take with them on a hike next week. He mixes 4 2/6 pounds of nuts, 3 3/6 pounds of raisins, and
2 3/6 pounds of chocolate chips. How many 1/3
pound bags of trail mix can he make? original answer Please and now
Answer:
your answer is 31
Step-by-step explanation:
18. The Tennis for Champs company is looking into new ways to package tennis balls. The packaging engineer at the company is exploring options for vacuum packing the balls (removing the air from the containers in which they are packaged) so they will retain good bounce. He wonders how much air there is in a standard container of tennis balls. Find the amount of empty space in a cylindrical container that is 18 cm tall and contains three tennis balls 6 cm in diameter. Use 3.14 for pi.
Answer:
Amount of empty space in the cylinder = 395.64 cm³
Step-by-step explanation:
Since the cylinder contains 3 tennis balls each measuring 6 cm in diameter, we can say that the diameter of the cylinder is 6 cm because the balls are on top of each other. Since we have 18 cm is the height of the cylinder,then;
Formula for volume of a cylinder is;
V = πr²h
We are to use π = 3.14
Thus, V_cylinder = 3.14 × (6/2)² × 18
V_cylinder = 508.68 cm³
Volume of a tennis ball is;
V_tennis ball = (4/3)πr³
V_tennis ball = (4/3) × 3.14 × (6/2)³
V_tennis ball = 37.68 cm³
Thus, volume of 3 tennis balls = 3 × 37.68 = 113.04 cm³
Amount of empty space in the cylinder = V_cylinder - V_3 tennnis ball = 508.68 - 113.04 = 395.64 cm³
What is the answer?!!!
Answer:
27
Step-by-step explanation:
240/9 = 26.6667
round to
27
Answer:
6 hours
Step-by-step explanation:
so 10.5 * 12 = 126 then 4 * 15 =60
126 + 60 = 186
240 - 186 = 54
54 divided by 9 =6
10 times the difference of y and 5?
Answer:
10(y-5)
Hope this helped!!
PLS HELP ASAP! GIVING BRAINLY!!
Answer:
A
Step-by-step explanation:
1-0.045=0.955
What is the power of 15?
PLS ANSWER QUICKLY! :(
Answer:
165
Step-by-step explanation:
165 shoukd be
A circular trampoline has a radius of 8 feet. Wendy wants to buy a cover for the trampoline. What will be the area of the cover?
8 square feet
16 square feet
645 square feet
2560 square feet
Which is equivalent to (4 x y minus 3 z) squared, and what type of special product is it
question answer choices are:
A. 16 x squared y squared + 9 z squared, the difference of squares
B. 16 x squared y squared + 9 z squared, a perfect square trinomial
C. 16 x squared y squared minus 24 x y z + 9 z squared, the difference of squares
D. 16 x squared y squared minus 24 x y z + 9 z squared, a perfect square trinomial
Answer:
The answer is option D
Step-by-step explanation:
When factored out option C and D are the same but it is a perfect square, not the difference of squares.
Option (D) 16 x squared y squared minus 24 x y z + 9 z squared, a perfect square trinomial is the correct answer.
What is an algebraic expression?An expression which is made up of variables and constants, along with algebraic operations (addition, subtraction, etc.). Algebraic expressions include at least one variable and at least one operation.
For the given situation,
The expression is (4xy-3z)^2.
This expression can be expand by using the formula,
[tex](a-b)^{2} = a^{2} -2ab+b^{2}[/tex]
Here, a = 4xy and b = 3z
⇒ [tex](4xy)^{2} -2(4xy)(3z)+(3z)^{2}[/tex]
⇒ [tex]16x^{2} y^{2} -24xyz+9z^{2}[/tex]
Hence we can conclude that option (D) 16 x squared y squared minus 24 x y z + 9 z squared, a perfect square trinomial is the correct answer.
Learn more about algebraic expression here
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please help me
The lengths of a triangle are 50 m, 120 m, and 130 m. Which formula could be used to show that the triangle is a right triangle?
A. 502 + 1302 = 1202
B. 1202 + 502 1302
C. 1302 + 1202 = 502
D. 502 + 502 1202
Answer:
Step-by-step explanation:
1302 + 1202 = 502
Answer:
1302 + 1202 = 502
Step-by-step explanation:
Cant really explain. 1302 + 1202 = 502
What is the measure of angle P?
Round only your final answer to the nearest hundredth.
Answer:
i think its 130
Step-by-step explanation:
hope this helps? :|
A book costs $45. Sales tax on the book is 7%. Write two different expressions that represent the final cost of the book in dollars. One of the expressions should use only a single multiplication and no other operations.
Answer:
7% of 45=3.15 and 3.15= 7% of 45
Step-by-step explanation:
The final cost of the book is, 45-7% of 45=41.85 and
41.85= 45-7% of45.
What is multiplication?In mathematics, multiplication is a method of finding the product of two or more numbers. It is one of the basic arithmetic operations, that we use in everyday life.
Here, given that,
A book costs $45.
Sales tax on the book is 7%.
So, the final cost =$45-$( 7% of 45)
=$45-3.15
=$41.85
Hence, The final cost of the book is, 45-7% of 45=41.85 and
41.85= 45-7% of45.
To learn more on multiplication click:
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