Answer:
I think it's 4 and why do I have to write 20 letters?
The opposite sides of a rectangle are (2x-1)cm and (x+3)cm . if it has a perimeter of 28 cm , find the area of the rectangle
Answer: 49 square cm
======================================================
For any rectangle, the opposite sides are the same length.
Set the given expressions equal to x and solve to get
2x-1 = x+3
2x-x = 3+1
x = 4
So each opposite side is:
2x-1 = 2*4-1 = 8-1 = 7x+3 = 4+3 = 7Each side being the same length (7) confirms we have the correct x value.
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Let's say L = 7 is the length and W is the unknown width.
We'll use the perimeter of a rectangle formula given below with P = 28 as the given perimeter. Solve for W.
P = 2*(L+W)
28 = 2*(7+W)
28/2 = 7+W
14 = 7+W
7+W = 14
W = 14-7
W = 7
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The rectangle has a length of L = 7 and width of W = 7, so its area is
A = L*W
A = 7*7
A = 49 square cm
Because we have the length and width as the same value, this rectangle is also a square.
What is the factored form of X3-1?
o (x2-1) (x2+x+1)
o (x-1)(x2-x+1)
0 (x-1)(x2+x+1)
o (x2-1) (x2+2x+1)
The factored form of (x³ - 1) is option C. (x - 1) (x² + x + 1)
What are Polynomials?Polynomials are mathematical expressions which consist of one or more terms involving variables and coefficients connected with operations like multiplication, subtraction, addition and natural number powers of variables.
Given is a cubic polynomial expression.
Given is x³ - 1.
We have to factorize it.
x³ - 1 = x³ - 1³
We have the algebraic expression identity that,
a³ - b³ = (a - b) (a² + ab + b²)
Using the expression, we get,
x³ - 1³ = (x - 1) (x² + x + 1²)
= (x - 1) (x² + x + 1)
Hence the correct form is option C.
Learn more about Factorization of Polynomials here :
https://brainly.com/question/26354419
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A cylindrical water tank has a radius of 14.5 feet and a height of 7.5 feet. Which value is the best estimate of the volume of the water tank? Round your answer to the nearest tenth of a foot.
Answer:
C= 2π14.5
C= 91.1061869
91.1061869 X 7.5 = 683.296402
A of a circle = πr squared
as the are two circles to a cylinder 2πr squared
2 X π X 14.5 = 1321.03971
add together
1321.03971 + 683.296402 = 2004.33611 ft squared
PLS HELP!!! BRAINLIEST AND 20 POINTS!!!
Answer:
A. P=11*3 = 33 ft
A= 21*3 = 63 ft^3
B. P = 9*3 = 27 ft
A = 15*3 = 45 ft^3
C. P = 20*3 = 60 ft
A = 24*3 = 72 ft^3
D. P = 13*3 = 39 ft
A = 25*3 = 75 ft^3
Step-by-step explanation:
[tex] h(t) = 8 + 40.8t -{16t}^{2} [/tex]
at what height is the ball after 2 seconds?
Step-by-step explanation:
When t = 2,
h(2) = 8 + 40.8(2) - 16(2)² = 8 + 81.6 - 64 = 25.6
Therefore the height after 2 sec is 25.6.
Answer:
[tex]h(t) = 8 + 40.8t - {16t}^{2} \\ h(2) = 8 + 40.8(2) - 16 {(2)}^{2} \\ = 8+81.6 - 64 \\ = 89.6 - 64 = \boxed{25.6}[/tex]
After 2 seconds the ball will be at the height of 25.6 unit.
Tyson works 34 hours each week at $20.39 per hour.
Tyson has 29.51% taken out for taxes and withholdings,
What is the net pay per year?
A $488.68
B. $10,638.21
C. $204.58
D. $25,411.31
Answer:
34 X 20.39 = 693.26
693.26 X 52 = 36049.52
100-29.51 = 70.49
36049.52/100 X 70.49 = 25411.306648
monetary value rounded 2dp = $25411.31
answer is D
Amelia works for 6 hours and earns $48.00. The graph shows the
relationship between the number of hours Amelia works, x, and the
total amount she earns, y.
Which point represents the number of dollars Amelia makes per hour?
O (1,8)
O (8,1)
O (6,48)
O (48,6)
how can 86 books to 150 books
Answer:
74.42
Step-by-step explanation:
(150-86):86*100 =
(150:86-1)*100 =
174.41860465116-100 = 74.42
4 pounds of jelly beans for $6. What is the unit rate?
Answer:
4 to 6? not 100% sure but i think that's it.
What is the correct sequence of steps?
I dunn know wut you mean but herez..
Simplify the parenthesis
Simplify all exponents
Simplify all multiplication and division, left to right
Simplify all addition and subtraction, left to right
Hava gud day :P
iii,v,iv,i, and ii
can I get brainlyest?
HELP ME!! Solve 1/2(10x + 6) + 3/4 (8x + 3)
Answer:
11x+5.25
Step-by-step explanation:
Open the brackets
1/2 x 10x= 5x, 1/2 x 6 =3
3/4 x 8x=6x, 3/4 x 3 =2.25
Like terms together
5x + 6x + 3 + 2.25
Answer
11x + 5.25
Answer: 11x+21/4
Step-by-step explanation:
So I shared in the () and then I add them all by making them all having the same denominator and then add them all again , it’s easier to understand with my work .
Hope it helped:)
Have an amazing day.
Expand & simplify
(x + 2)(x + 6)
Step-by-step explanation:
=(x+2)(x+6)
=x²+6x+2x+12
=x²+8x+12
hope it helps..
Answer:
x^2+8x+12
Step-by-step explanation:
expanding the answer:x*x+8*x+12
what is the area of the shaded part of the square?
options:
[tex]a) 2a {}^{2} - a \: \: \: \: \: b)4a - ab \: \: \: c)4a {}^{2} - ab \: \: \: d) \: 2a {}^{2} + ab[/tex]
Answer: c) 4a² - ab
Step-by-step explanation:
A = (2a)² - ab = 4a² - ab
Work out the circumference of this circle.
Take a to be 3.142 and give your answer to 1 decimal place.
9m
Answer:
28.3 (explaination below)! :)
Step-by-step explanation:
Use the formula for cicrumfrence: C=2πr
Radius can be found by splitting the given number in half, (unless you were given the radius already, then you'd just multiply by 2).
Plug in our numbers. C= 2π4.5
Then, multiply.
You'd get 28.27433388230814.
Rounding to the first decimal place, you'd have a final answer of 28.3.
Hope this helps!
What value of x makes this equation true?
12x - 15 = 6 - 3x
F: 7/3
G: 7/5
H: 5/7
J: 3/7
Answer:
G: 7/5
Step-by-step explanation:
12x - 15 = 6 - 3x
12x + 3x = 6 + 15
15x = 21
x = 21/15
x = 7/5
In which quadrant is the ordered pair ( 7, -8 ) located? *
Quadrant I
Quadrant II
Quadrant III
Quadrant IV
Answer:
i think IV
Step-by-step explanation:
because of the picture
You have 19.3 ounces of juice in a cup and pour 33.5 more ounces in the same cup. How many total ounces of juice are in the cup now?
Answer: There is 52.8 ounces of the juice in the cup now.
Step-by-step explanation:
We are given that,
The quantity of juice you initially have = 19.3 ounces
You added 33.5 ounces more to the cup.
Then, By using the addition operation, the total quantity of juice in the cup will be (Juice you initially had) + (additional amount)
i.e. The total quantity of juice in the cup= 19.3 + 33.5 ounces
The total quantity of juice in the cup= 52.8 ounces
Hence, there is 52.8 ounces of the juice in the cup now.
The figure shows two angles. What is the value of x?
Answer:
x=70
Step-by-step explanation:
First subtract 30 from 180
180-30=150
Subtract 10 from 150
150-10=140
Divide 140 and 2
140÷2=70
Answer:
x=70
Step-by-step explanation:
angles on a straight line add to 180
so first you do 180-30 which equals to 150
this means that 2x+10=150
take away 10 from both sides and your left with
2x=140
since you are finding x
you divide both sides by 2
x=70
Solve for the variable in each equation.
1) 3x=0
2) x(x-8)=0
3) (x+1)(x-6)=0
4) (x-2)(x+5)(x-3)=0
PLEASE HELP !
I GIVE BRAINIEST
Can someone help me with question number two.
Using the first graph.
Just in case you can’t see the question is for number two how long does it take the plane to reach its maximum altitude.
what’s the area of the figure ?
Answer:
8x^3y
Step-by-step explanation:
The area of a rectangle is length * width.
area = 4x^2y * 2x =
= 4 * 2 * x^2 * x * y
area = 8x^3y
An expression can often be used to model a real-life situation. For each of the following expressions, write a real-life situation using money as the context. Then, evaluate the expression and interpret the result in terms of the situation. Here's an example.
The following situation is modeled by the expression -24.50 + 100.00: Jonathan overdrew his checking account by $24.50. He then transferred $100.00 from his savings account to his checking account. His new checking account total is $75.50.
Make sure to use complete sentences in your answers.
1) $8.15 + $11.99
2) $20 - $18.04
3) 7($1.45)
4) 42.08 / 4
Answer:
Question
An expression can often be used to model a real-life situation. For each of the following expressions, write a real-life situation using money as the context. Then, evaluate the expression and interpret the result in terms of the situation. Here's an example.
The following situation is modeled by the expression -24.50 + 100.00: Jonathan overdrew his checking account by $24.50. He then transferred $100.00 from his savings account to his checking account. His new checking account total is $75.50.
Make sure to use complete sentences in your answers.
1) $8.15 + $11.99
2) $20 - $18.04
3) 7($1.45)
4) 42.08 / 4
It's too short. Write at least 20 characters to explain it well.
Find the sum of the geometric sequence
1+ 0.8+0.8^2+0.8^3+...+0.8^19
Write down a rule for the sequence 810,270,90,30
PLSS HELP ❤️❤️❤️❤️
Answer:
10(3^(5-n))
Step-by-step explanation:
solve |3x – 2|= |2x + 7|
Answer:
x=9, -1
Sorry if its wrong
CORRECT ANSWERS GET BRAINLY NEED ASAP
Answer:
I have made it in above pic
Calculate the slope of the line
Answer:
0.38
Step-by-step explanation:
0×x=0.3 bexuse the angle need works
Randy owns 120 baseball cards, and Phil owns 95 baseball cards. The number of baseball cards Davis owns is equal to 5 times the difference between Randy's number of cards and Phil's. How many cards does Davis own?
Answer:
125
Step-by-step explanation:
120 - 90 = 25 x 5 = 125
A 6-pack of key chains costs $5.20. What is the unit price?
O $0.87
O $1.43
O $7.00
O $1.60
divide 5.20 by 6 and you will get 0.87
Find the missing dimension.
The missing dimension is
meters.fill in the blank
20, it's a cube
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