Answer:
area of the rectangle is length *breadth
length =(x+5)
breadth =(x-5)
=(x+5)(x-5)=x^2-5x+5x-25=x^2-25
Answer:
[tex]\boxed {\boxed {\sf a=x^2-25}}[/tex]
Step-by-step explanation:
The area of a rectangle is the product of length and width.
[tex]a=l*w[/tex]
The length is (x+5) and the width is (x-5).
[tex]a= (x+5)(x-5)[/tex]
We have two binominals, so we can multiply using FOIL: First, Outside, Inside, Last.
F: x*x= x²O: x*-5= -5x I: x*5= 5x L: 5*-5 = -25[tex]a= x^2-5x+5x-25[/tex]
Combine the like terms: -5x and 5x. They cancel each other out.
[tex]a=x^2-25[/tex]
The area of the rectangle is x²-25
Joelle spent 1 1/2 hours studying for her science test. Rileigh studied 3/4 for of Joelle‛s time. What fraction of an hour did Rileigh spend studying?
Answer: 1¹/₈ hours
Step-by-step explanation:
Joelle spent 1¹/₂ hours reading and Rileigh spent 3/4 of that time.
To find out how much time Rileigh spent, multiply the fractions but first convert the improper fraction to a proper fraction:
= 1¹/₂ = 3/2
= 3/2 * 3/4
= 9/8
= 1¹/₈ hours
Answer:
1 1/8
Step-by-step explanation:
it's just right
someone help me please
Answer:
c
........ ......
Step-by-step explanation:
126÷42=3
3×28=84
The base of an isosceles triangle is 24cm and its area is 192 sq.cm . Find its perimeter
Answer:AB = AC since the given triangle is isosceles. Area = 192 sq.cm. = 64 cm. Hence the perimeter of triangle is 64 cm.
Step-by-step explanation:
Find the missing length of the triangle
HELP!
Answer:
37
Step-by-step explanation:
EASY QUESTION! WILL GIVE BRAINLIEST! AND THANKS!
A clothing store donated a percent of every sale to charity . The total sales were $6,380 so the store donated $319. What percent of $6,380 was donated to charity ?
5% Because when you minus them it will be 6061 and 6061/6380 converted ad a fraction will be 95% so that means that 5% is subtracted
Please help me solve this.
Answer:
see my questions please come
x=-7y+5
5x=4y=-6
solve by substitution
7. Present age of Rahul is 't years
a) What was Rahul's age 8 years back?
b) Rahul's mother is 6 years more than 5 times Rahul's age. What is his mother's age ?
Step-by-step explanation:
a) rahul's age = t
rahul's age 8 yrs. back = t - 8
answer bdbdbdhdhdhhs
Answer:
B
Step-by-step explanation:
common means you want the same denominator so you want the denominator to be both 10. 2 x 2 = 4, 2 x 5 = 10 so 4/10
Answer:
answer is c 3/10 and 4/10
Step-by-step explanation:
alright so 10. 5 can go into 10 2 times. the 2 times is which is what we multiply the numerator by and the 5 by both multiplying by 2 equaling 4/10 for simpler explanation
5 goes into 10 2 times
multiply both sides by 2
2 x 2 = 4
-- --
5 x 2 = 10
is it true that In Math, an expression does not use a equal sign. (=)
Answer:
this is true
Step-by-step explanation:
not every expression equation uses an equal sign in the question
if i have all a's and one d what is my gpa
Answer:
Step-by-step explanation:
umm like 2.8 i think
HELP ME PLSS ASAP!!
The graph shows the prices of different numbers of bushels of corn at a store in the current year. The table shows the prices of different numbers of bushels of corn at the same store in the previous year.
A graph shows Number of Bushels on x-axis and Price of Corn in dollars on y-axis. The x-axis scale is shown from 0 to 14 at increments of 2, and the y-axis scale is shown from 0 to 98 at increments of 14. A straight line joins the ordered pairs 2, 14 and 4, 28 and 6, 42 and 8, 56 and 10, 70 and 12, 84.
Previous Year
Number of Bushels
Price of Corn (dollars)
2
10
4
20
6
30
8
40
Part A: Describe in words how you can find the rate of change of a bushel of corn in the current year, and find the value. (5 points)
Part B: How many dollars more is the price of a bushel of corn in the current year than the price of a bushel of corn in the previous year? Show your work. (5 points)
Answer:
Part A: 8
Part B: $1
Step-by-step explanation:
Part A: We know that 3 bushels is $24, and that rate remains constant, as the graph has a straight line.
Divide both sides by 3 to get 1 bushel=$8.
We can also double check with the other values: 48/6=$8 per bushel, 72/9=$8 per bushel, and so on.
The rate of change is the slope of a line (how much one value changes when the other value does). In this equation, the equation of the line is y=8x, so the slope is 8. Therefore, the rate of change is 8.
Part B: In the previous year, each bushel of corn was 21/3, 42/6, etc., or $7 a bushel. This year, it is $8, so $8-$7=$1
Therefore, the price has increased by $1 this year.
30. Find the value of expression 20m2 + 30m + 40 when a)m = -3 b)m= - 4 c) m = 3
Answer:
di you mean m² when you say m2 or not?
The values of the expression are;
-21, 240, 310 respectively
We were given the equation as ;
20 [tex]m^{2}[/tex] + 30m + 40
Then we can find the values of the expression with the given options to know the answer by input the value of ' m' into the given equation
Option (a) (m=-3)20( [tex]-3^{2}[/tex] )+ 30(-3)+ 40 = -21Option (b) (m=-4)20([tex]-4^{2}[/tex] )+ 30(-4)+ 40 = 240Option (c) (m=3)20([tex]3^{2}[/tex]) + 30(3)+ 40 = 310Therefore, the values of the expression are; -21, 240, 310 respectively
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In the number 6231732,the value of the digit 3 on the left is _ times the digit 3 on the right
Answer:
1,000
Step-by-step explanation:
this number is 6,231,732 so each number is at a different value place the three on the left is in the 10,000 place and the three on the right is in the tens place so it is multiplied by 1,000 because 30•1,000=30,000
How can a Line Plot help you find an average with data given in Fractions?
Answer:
I did not understand its confusing
Answer: Since it tells you where everyone is and where the average is, it's helpful.
I dont understand the question
Explanation:
If the exponent is negative, then that means we apply the reciprocal. So something like x^(-2) becomes 1/(x^2). A polynomial cannot have a variable in the denominator like this. So we can rule out choices A, B, and D. Choice C is the only thing left. It is a polynomial because the exponent is a positive whole number.
2. Celeste was selling meal tickets for the holiday program at her school. The
cost of a dinner ticket is $10. She is also selling dessert tickets for $6. She lost
track of how many of each ticket she sold; however, she remembered that she
was given 100 tickets and she collected $900. The system of equations shown
can be used to represent this situation: Part A: What does the variable x
represent in this system of equations?
A. The number of dinner tickets sold.
B. The number of dessert tickets sold.
C. The number of dollars collected for dinner tickets.
D. The number of dollars collected for dessert tickets. ption 1
Answer:
A. The number of dinner tickets sold.
Step-by-step explanation:
Celeste was selling meal tickets for the holiday program at her school. The
cost of a dinner ticket is $10. She is also selling dessert tickets for $6. She lost track of how many of each ticket she sold; however, she remembered that she was given 100 tickets and she collected $900.
Let us represent
Number of dinner tickets = x
Number of dessert tickets = y
From the above question, our system of equations is given as:
x + y = 100...... Equation 1
$10 × x + $6 × y = $900
10x + 6y = 900...... Equation 2
Therefore, the variable x in this system of equations represents the number of dinner tickets sold.
Option A is the correct option.
Jayden is buying an Ipod that has a price tag of $85. At the register, the cashier applies a 20% discount to the $85 price. How much will Jayden pay for the Ipod after the 20% discount?
4. Find the product of (a+b)(a²-ab+b?)
Answer:
a³+b³
Step-by-step explanation:
this is formula. You can also refer to the attachment
Answer:
Step-by-step explanation:
(a + b) (a² - ab + b) = a*(a² - ab + b) + b(a² - ab + b)
= a*a² - a*ab +a*b + b*a² - b*ab + b*b
= a³ - a²b + ab + a²b -ab² + b²
= a³ - a²b + a²b + ab - a²b + b²
= a³ + ab - a²b + b²
Please help !!!!!!!!!
Answer:
This is some ton of work LOL
Step-by-step explanation:
A. 4/7×5/5=20/35 We multiply by 5 for A because 35÷5=7 and you need to multiply top and bottom. You can NOT forget that. We do not need to simplify something this time? 3/5X7/7=21/35. Why are we muliplying something new? figure out. no need to simplify. oBVIOUSLY 3/5 IF BIGGER
B. As usual etc...
An art class charges each student $15 to attend, plus a fee for supplies. The instructor hopes to collect $240 total from the 12 students who attend the class.
2.1) Write a question that you could figure out using this information and whose answer is not already given.
Answer:
Find the cost of supplies charged by the instructor for each student.
Can somebody plz help answer this word problem and also write a equation to how u got the answer lol thx :3
WILL MARK BRAINLIEST WHOEVER CAN ANSWER THIS FIRET :DD
Answer:
Marc has 48kg mass
Step-by-step explanation:
16 x 3 = 48
Answer:
Step-by-step explanation:
Mass of sister = 16 kg
Mass of Marc = 3 times than sister = 16 x 3 = 48kg
f(x) = 3x²+5, what is f(-3)
Answer:
32
Step-by-step explanation:
f(x) = 3x²+5
f(-3) = 3(-3)^2+5 = 27 + 5 = 32
Answer:
F(-3)=86
Step-by-step explanation:
3•(-3)^2 + 5
-9^2 +5
81+5=86
helen has to buy all the butter she needs to make 60 biscuits she buys the butter in 250 g packs what is the exact amount of butter she needs to buy
Answer:
480
Step-by-step explanation:
sorry if its wrong bro
Step-by-step explanation:
a- for 15 biscuits:
sugar=60g
for 60 biscuits, she will need:
sugar=240, as she would make 15 biscuits 4 times to get a total of 60 biscuits
the amount of flour must be 3×sugar used
so amount of flour she needs is 720g
b i- she needs a total of 480g butter as butter is 2× of sugar used
ii- since she buys in 250g packs, she would have to buy 2 packs
20 g will be left after she finishes making the biscuits
A classroom is arranged with 6 seats in the front row, 12 seats in the middle row, and 10 seats in the back row. The teacher randomly assigns seats to students as they enter the classroom.
What is the probability that the first student who enters the classroom will be assigned a seat in the front row?
Answer:
4/15 i'm pretty sure
(Sorry if it's wrong, it's been awhile since i've done stuff like this)
x - 2y < 0
hello !! I'm trying to get y by itself so I can graph this, I think the answer is
[tex]y < \frac{x}{2} [/tex]
but I'm not entirely sure
if anyone can help me with this that'd be awesome !!
can someone help pls
Answer:
Step-by-step explanation:
-1 =5
0=0
1=-3
2= -4
3=-3
4=0
Answer:
-1 = 5
0 = 0
1 = -3
2 = -4
3 = -3
4 = 0
5 = 5
Step-by-step explanation:
IF THS IS THE ANSWER CAN U PLZ MAKE ME BRAINLIEST
THANK U AND BE SAFE AND HEALTHY :)
Write down the value of angle y, giving a reason for your answer
Y=
Other angle given is 67 degrees
Answer:
y would be 67 as well.
Step-by-step explanation:
they are alternate interior angles. hope it helps
In part (a) the missing angle of a triangle is 70 degrees and in part (b) the missing angle is 67 degrees.
What is the triangle?In terms of geometry, the triangle is a three-sided polygon with three edges and three vertices. The triangle's interior angles add up to 180°.
Part(a)
We have a triangle shown in the picture.
The two lengths of a triangle are equal.
The angle opposite to the sides will be equal.
As we know,
The triangle's interior angles add up to 180°.
180 = 55 + 55 + x
x = 180 - 110
x = 70 degrees
In part (b)
There are two parallel lines shown in the picture.
The angle y will be the same as 67 degrees because two parallel lines are cut by a transversal line.
Thus, in the part (a) the missing angle of a triangle is 70 degrees and in part (b) the missing angle is 67 degrees.
Learn more about the triangle here:
brainly.com/question/25813512
#SPJ5
SOMEONES PLS HELP ILL GIVE BRAINLIEST
Answer:
130
Step-by-step explanation:
1. A right triangular prism has a base with perimeter 12 cm and area 6 cm2.
a) Find the whole-number dimensions of the base.
b) The length of the prism is 6 cm. Sketch the prism. Include its dimensions.
Calculate the surface area of the prism.
Answer:
A right triangular prism has a base with perimeter 12 cm and area 6 cm2. a) Find the whole-number dimensions of the base
Step-by-step explanation:
you have to study