Answer:
[tex]\huge\boxed{A=(9x^2-48x+64)ft^2}[/tex]
Step-by-step explanation:
The formula of an area of a square:
[tex]A=s^2[/tex]
[tex]s[/tex] - side of a square
We have [tex]s=(3x-8)ft[/tex]
Substitute:
[tex]A=(3x-8)^2[/tex]
METHOD 1:
Use [tex](a-b)^2=a^2-2ab+b^2[/tex]
[tex]A=(3x)^2-2(3x)(8)+8^2=9x^2-48x+64[/tex]
METHOD 2:
Use FOIL: [tex](a+b)(c+d)=ac+ad+bc+bd[/tex]
[tex]A=(3x-8)(3x-8)=(3x)(3x)+(3x)(-8)+(-8)(3x)+(-8)(-8)\\\\=9x^2-24x-24x+64=9x^2-48x+64[/tex]
Answer:
9x^2-48x+64 ft^2
Step-by-step explanation:
(3x − 8) (3x − 8)
Multiply 3x by (3x − 8)
3x(3x − 8)
9x^2-24x
Multiply - 8 by (3x − 8)
- 8(3x − 8)=-24x+64
Combine 9x^2-24x and -24x+64
9x^2-48x+64 ft^2
Hope this helps! Plz award Brainliest : )
9. A hot air balloon ascended to a height of 35 meters 2 minutes after launch. After some time, the
balloon's altitude began to change by -3% meters every minute for 9 minutes. To avoid a tree, the Hot air
balloon flew up by 5/2 meters. What is the new altitude of the hot air balloon?
meters
Answer:
-3
Step-by-step explanation:
that it
Item 15 You deposit $50 in your savings account. One week later, you withdraw $20. Write each amount as an integer.
Is 9.52 less than 90.13?
Answer:
Yes, 9.52 is less than 90.13
Step-by-step explanation:
Because 90 is a whole number from the decimal 90.13, and 9 is the whole number from the decimal 9.52
Compare 90 and 9. 90 is greater; therefore, 9.52 is less than 90.13
Kenji is playing the video game dragon tamer, where players go on a adventure finding and training. In the first level he gets 10 points for finding a silver thorn dragon but gets -6 points when it scorched him with fire
Elise runs 6 miles during each track practice. How many miles would Elise have run after 3
track practices?
miles
Submit
How many solutions exist for the given equation? 12x + 1 = 3(4x + 1) – 2
Answer:
3=3 infinity many solutions
Step-by-step explanation:
12x+1=3(4x+1)-1
3x4x 3x1
12x+1=12x+3-2
+2 +2
12x+3=12x+3
-12x -12x
3=3
The length of a rectangle is 2 feet less
than three times the width. If the
perimeter is 68 feet, what are the
dimensions of the rectangle?
The length of the rectangle is 25 feet and the width of the rectangle is 9 feet.
It is given that,
Length of a rectangle is 2 feet less than three times the width.Perimeter is 68 feet.Explanation:
Let [tex]x[/tex] be the width of the rectangle. Then the length of the rectangle is [tex]3x-2[/tex].
Perimeter of a rectangle is:
[tex]P=2(\text{length}+\text{width})[/tex]
[tex]68=2(3x-2+x)[/tex]
[tex]68=2(4x-2)[/tex]
[tex]68=8x-4[/tex]
Isolate the variable.
[tex]68+4=8x[/tex]
[tex]\dfrac{72}{8}=x[/tex]
[tex]9=x[/tex]
Now, the length of the rectangle is:
[tex]3(9)-2=27-2[/tex]
[tex]3(9)-2=25[/tex]
Thus, the length of the rectangle is 25 feet and the width of the rectangle is 9 feet.
Learn more:
https://brainly.com/question/4769725
What number is 1/8 (one eighth) of 448?
Answer: the answer is 56
does anyone know this i need an answer asap btw its 8th grade work
Find the midpoint of the line segment using the midpoint formula
^ (-3,5) (8,-1)
M=
A) (5.5,-3)
B) (2,2.5)
C) (2.5,2)
D) (5.5,2)
FIRST CORRECT ANSWER GETS BRAINLIEST AND 50 POINTS.
Given the following expressions:
A. 5^3 * 5-^4
B. 3^5/3-^6
C.(1/4)^3 * (1/4)^2
D. (-7)^5/(-7)^7
Part 1: use operations of exponents to simplify each expression (A-D) include your work in your final answer
Part 2: for each simplified expression (A-D) tell whether or not the expression has a value between zero and one
Answer:
A) [tex]5^3*5^{-4}=5^{3-4}=5^{-1}=\frac{1}{5}[/tex] (Yes. It has a value between zero and one.)
B) [tex]\frac{3^5}{3^{-6}}=3^{5-\left(-6\right)}=3^{5+6}=3^{11}=177147[/tex] (No. It does not have a value between zero and one.)
C) [tex]\left(\frac{1}{4}\right)^3* \left(\frac{1}{4}\right)^2=\left(\frac{1}{4}\right)^{3+2}=\left(\frac{1}{4}\right)^5=\frac{1^5}{4^5}=\frac{1}{1024}[/tex]. (Yes. It has a value between zero and one.)
D) [tex]\frac{\left(-7\right)^5}{\left(-7\right)^7}=\left(-7\right)^{5-7}=\left(-7\right)^{-2}=\frac{1}{\left(-7\right)^2}=\frac{1}{49}[/tex] (Yes. It has a value between zero and one.)
Answer:
see below
Step-by-step explanation:
A. 5^3 * 5^-4 = 1/5
It has value between 0 and 1
B. 3^5 / 3^-6 = 177147
It doesn't have a value between 0 and 1
C. (1/4)^3 * (1/4)^2 = 1 / 1024
It has value between 0 and 1
D. (-7)^5 / (-7)^7 = 1/49
It has value between 0 and 1
Which conditional has the same truth value as its converse?
Answer:
All statements are true, but if you try to reverse them they won't necessarily be true.
Let's try:
Square ⇒ Has 4 sides
But if something has 4 sides it doesn't mean it's a square (example: rectangle)
Angle is 80° ⇒ acute angle
But acute angle is any angle below 90°, not just 80° so the reverse isn't true.
x – 17 = 4 ⇒ x = 21
And if we reverse
x = 21 ⇒ x – 17 = 4
we see that it's true for either direction.
x = 7 ⇒ |x| = 7
But |x| = 7 doesn't mean that x has to be 7, x can also be -7, so the reverse isn't true.
x – 17 = 4, then x = 21
Step-by-step explanation:
HELP ME PLZ I have only ten minutes
If ST=15 and RT=40, then RS=
Step-by-step explanation:
RS = RT-ST
................
Answer:
RS=25
Step-by-step explanation:
RT-ST=RS
40-15=25
Apples at the grocery store cost $0.94
Apples at the grocery store costs $0.94 per pound. What is the total cost if Ashley
buys 3.25 pounds of apples? Round to the
nearest hundredth.
Answer:
$3.05 i'm pretty sure
Step-by-step explanation:
If one pound is $0.94 and she bought 3.25 pounds you multiply 3 by 0.94 and get $2.82 (we multiply by 3 to make it easier and to deal with the .25 later) then now we deal with the .25, since .25 is 1/4 in fraction just find out what 1/4 of .94 is which is .23 cents. So add $2.82 and $0.23 and you get $3.05
1. What is v27 equal to?
a. 9
b. 5.3
c. 5.2
d. 13.5
I need the answer
Answer:
does it come with a pic?
Answer:
I think C. 5.2 is the answer
Explanation:
If you put this in the calculator, you will get 5.19615242271. This number is rounded to 5.2
Hope this helps!
What is the slope of the line?
Anyone want to help with more questions after this question I’ll give you brainlets
Answer:
its d
Step-by-step explanation:
5 to the fourth power *since you timesed 5x5 four*4* times
What is the solution to x3 = 64? A 4 B 8 C 16 D 21
Answer:
Option A
Step-by-step explanation:
I am assuming that '3' is an exponent.
[tex]x^3=64\\\\\sqrt[3]{x}=\sqrt[3]{64}\\\\\boxed{x=4}[/tex]
Hope this helps.
convert 3/9 4/9 and 5/9 into decimals
Answer:
0.3333333333
0.4444444444
0.5555555556
What is the slope of a line perpendicular to the line whose equation is
6x + 4y = 72.
Write the equation of the line with slope 8 and passes through the point ( - 9, - 7)
Answer:
y = 9x + 65Step-by-step explanation:
To find the equation of the line given the slope and a point we use the formula
[tex]y - y_{1} = m(x - x_{1})[/tex]
where
m is the slope
( x1 , y1) is the point
From the question the slope is 8 and the point is ( - 9 , - 7)
Substitute the values into the above formula and solve for the equation
We have
[tex]y + 7 = 8(x + 9) \\ y + 7 = 9x + 72 \\ y = 9x + 72 - 7[/tex]
We have the final answer as
y = 9x + 65Hope this helps you
WHOEVER ANSWERS RIGHT FIRST GETS BRAINLIEST 4(4m-10)=8(m-5)+8m Combine the liked terms Im assuming.. Couldn't find answer anywhere!
Answer:
simplified it is
16m-40=16m-40
How do I simplify this? I got to 2/(3/x)-1 but I don't know how to simplify that further. Please show steps.
(f o g) (x) means that we substitute 3/x into x for f(x)
2 / ((3/x) - 1)
We have to get rid of the fraction in the denominator. Multiply both the top and bottom by x
(f o g) (x) = [tex]\frac{2x}{3 - x}[/tex]. This is as simplified as it can get.
1. The surface area of a cylinder is T-2rerh2r', where is the surface area, andr
is the radius of the base. A penny is a cylinder with a diameter of 19.05 millimeters
and a thickness of 1.55 millimeters. Ignoring the raised design, what is the surface
area of a penny?
Answer:
the surface area of a penny = 662.81 mm²
Step-by-step explanation:
given:
A penny is a cylinder with a diameter of 19.05 millimeters
and a thickness of 1.55 millimeters.
find:
what is the surface area of a penny?
surface area of a cylinder formula:
As = 2 π r h + 2 π r²
let r = 19.05 / 2
r = 9.53 mm
let h = 1.55mm
plugin values into the formula:
As = 2 π (9.53) 1.55 + 2 π (9.53)²
As = 92.76 + 570.05
As = 662.81 mm²
therefore,
the surface area of a penny = 662.81 mm²
Answer:
the surface area of a penny = 662.81 mm²
Step-by-step explanation:
i got this correct in exam
Will mark as brainiest!! PLZ HELP!!
Answer:
1 mile =5280 foots
10 miles=52800 foots
10 miles per hour=52800 per hour
52800 per second = 14.67 aprox
14.67×25=366.75aprox
Step-by-step explanation:
Therefore answer is 366.75 aprox
I hope it will help mark me as brainlist answet
Answer:
660 feet in 25 secs
Step-by-step explanation:
First convert 18 mph into feet per second and you get 26.4 feet per second and then you multiply that by 25 to get 660 ft.
How many solutions exist for the given equation?
3(x + 10) + 6 = 3(x + 12)
Explain your answer and I'll mark you Brainlyiest.
Answer:
Infinitely many solutionsStep-by-step explanation:
3(x + 10) + 6 = 3(x + 12)3x + 30 + 6 = 3x + 363x - 3x = 36 - 360 = 0This equation has infinitely many solutions as for any value of x we have same result
Answer:
Infinitely many
Step-by-step explanation:
Tyler needs to complete the table for his consumer science class. He knows that 1 tablespoon contains 3 teaspoons and that 1 cup contains 16 tablespoons. Write an equation that represents the number of teaspoons, t, contained in a cup, C.
Answer:
I hope this helps you : ) !!!
Step-by-step explanation:
t = teaspoons
c = cup
b = tablespOON
T = B x 3
( teaspoons ) 48 = ( tablespoons ) 16 x ( for each tablespoon there is 3 teaspoons ) 3
for every one tablespoon, there are 3 teaspoons which equal how many cups there are.
48 TEASPOONS
16 TABLESPOONS
1 CUP
Marlon withdrew $25 from his savings account every week for 5 weeks. Which expression is the best choice to help him determine the total amount of money he withdrew? A: (25)(−5) = −125; he withdrew $125 B: (−25)(5) = −125; he withdrew $125 C: (−25)(−5) = 125; he withdrew $125 D: (25)(5) = 125; he withdrew $125
I think it's D.
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Find the length of RE
5 + x +3 + 2x + x + 7 + 8 + x =
Answer:
23+5x
Step-by-step explanation:
Group like terms(Numbers and variables)-
5+3+7+8+x+2x+x+x
Add the like terms-
23+5x
