G I DID THIS ON KHAN!!!
In which step did Montiah make an error?
3(x+8)2 + 8 = 83
3(x+8)2 = 75
Step 1
(x + 8)2 = 225
Step 2
X + 8 = +15
Step 3
X = 7 or x = -23 Step 4
Answer:
Step-by-step explanation:
I think you mean 3(x+8)², not 3(x+8)2. If you cannot type ², use ^ to mark the exponent: 3(x+8)^2.
3(x+8)² + 8 = 83
3(x+8)² = 75
(x+8)² = 25
x+8 = ±√25
x+8 = ±5
x = -8 ± 5 = -3, -13
Answer:
Step 2
Step-by-step explanation:
Use the drawing given. (Please answer first blank and let me know it the second blank is correct.)
Answer:
EF = 12
arc AG = 62°
Step-by-step explanation:
since ED = 13, EC = 13, so DF = 10/2 = 5
EF² + 13² - 5² = 169 - 25 = 144
EF = √144 = 12
∠AEG = 90° - 28° = 62°
arc AG = 62°
The perimeter of a rectangle is represented by the expression 6x + 4. If the width of the rectangle is represented by the expression x – 1, which expression represents the length? 4x + 6 4x – 6 2x + 3 2x + 6
Answer:
2x + 3
Step-by-step explanation:
two sides measure (x-1) which gives 2(x-1) or 2x - 2
subtract 2x - 2 from 6x + 4 to get 4x + 6
4x + 6 represents twice the length so divide it in half to get:
2x + 3
Answer:
The perimeter of a rectangle is represented by the expression 6x + 4. If the width of the rectangle is represented by the expression x – 1, which expression represents the length?
4x + 6 4x – 6 2x + 3 <<<CORRECT 2x + 6
Step-by-step explanation:
EDGE 2021
What’s the answer to this?
Answer:
45 degrees
Step-by-step explanation:
Have a grate Day :)
1. You roll a number cube numbered from 1 to 6.
P( a number divisible by 3).
1/2
Step-by-step explanation:
there are two numbers 3 and 6 so 2/6 is 1/3
Triangle ABC is a right triangle. The lengths of the legs are 60 centimeters and 80 centimeters.
What is the length, in centimeters, of the hypotenuse?
Answer:
69.28 cm
Step-by-step explanation:
i used a calculator but the steps you take to solve this are...
1. Multiply the length of one side by the length of the other.
80x60 = 4,800
2. Square that number to get the hypotenuse
[tex]\sqrt48000[/tex]
3. You've got your answer
(69.28)
Answer:
100 cm
Step-by-step explanation:
<3
Simplify the expression to a polynomial in standard form: (4x-3)(-2x^2-7x-5)
How to solve your problem
(4−3)(−22−7−5)
(4x−3)(−2x2−7x−5)(4x-3)(-2x^{2}-7x-5)(4x−3)(−2x2−7x−5)
Simplify
1
Distribute
(4−3)(−22−7−5)
(4x−3)(−2x2−7x−5){\color{#c92786}{(4x-3)(-2x^{2}-7x-5)}}(4x−3)(−2x2−7x−5)
4(−22−7−5)−3(−22−7−5)
2
distribute
4(−22−7−5)−3(−22−7−5)
4x(−2x2−7x−5)−3(−2x2−7x−5){\color{#c92786}{4x(-2x^{2}-7x-5)}}-3(-2x^{2}-7x-5)4x(−2x2−7x−5)−3(−2x2−7x−5)
−83−282−20−3(−22−7−5)
3
−83−282−20−3(−22−7−5)
−8x3−28x2−20x−3(−2x2−7x−5)-8x^{3}-28x^{2}-20x{\color{#c92786}{-3(-2x^{2}-7x-5)}}−8x3−28x2−20x−3(−2x2−7x−5)
−83−282−20+62+21+15
4
Solution
−83−222++15
I know this looks like a lot but its just how you solve your problem.
therefor, your answer is
Solution
−83−222++15
Hope this helps!
Have a great day!
-Hailey
Use the table showing the number of visitors to the art museum each month
A. What is the mean of the data?
B. what is the median
of the data?
C. what is the mode of the data?
Answer:
The answer is C
Step-by-step explanation:
Cause the visitors to the Act got more data
Posted Mar 22
Lana bought a sports car for $75,700. If the value of her car decreases 4.3% annually.
When using the exponential DECAY formula, what would be the value of r?
Answer:
The value of r will be 0.043
Step-by-step explanation:
Firstly, we need to write the exponential decay formula
the general form of the formula is;
A = P(1-r)^t
where A is the price after a certain year t
P is the initial value
r is the decay rate
t is the time
From the question, we have that;
r = 4.3%
4.3% in decimal will be 4.3/100 = 0.043
HELPPPPPPPPPPPPP MEEEEEEEEEEEEEEEEEEE
Answer:
angle KJG = angle FGJ (by alternateinteriorangle)
There are 1,024 players in a tennis tournament. In each round, half of the players are eliminated. Which function can be used to find the number of players remaining in the tournament at the end of x rounds?
A: f(x)=1,024(1.50)x
B: f(x)=1,024(0.50)x
C: f(x)=1,024(1.05)x
D: f(x)=1,024(0.05)x
Answer:
f(x) = 1,024(0.50)x
Step-by-step explanation:
i just took the test :)
Daniel had $30 to spend at the fair if she admission to the fair is $7 and the rides cost 1.50 each what is the greatest number of rides Daniel can go on write an inequality that represents Daniels situation. How many rides can Daniel go on?
Answer:
Daniel can go on 22 rides.
Step-by-step explanation:
Whats the common ratio of the geometric sequence 6, 36, 216,
Answer:
Common ratio is 6.
Step-by-step explanation:
The geometric sequence is being multiplied by 6 each time because 6x6=36, and 36x6=216.
Answer: Find the common ratio of the geometric sequence 6, 36, 216,...6,36,216,...
a_1=6 a_2=36 a_3=216
a
1
=6a
2
=36a
3
=216
\text{Common Ratio:}
Common Ratio:
r=\frac{a_2}{a_1}
r=
a
1
a
2
r=\frac{36}{6}
r=
6
36
r=6
r=6
Alan has read 20% of his book. He has 64 more pages to finish. How many pages are there in the book?
Answer:
80 pages
Step-by-step explanation:
We can think of this as 80% of the book is 64 pages
.8x = 64
x=80
Unit 7: Polygons & Quadrilaterals
Nomework 4: Rhombi and Squares
Answer:
Hey mate, here is your answer. Hope it helps you.
Step-by-step explanation:
6x-21 —->
x=21+6
=27
Answer:
x=11°
Step-by-step explanation:
PSRQ is square ⇒ ∠PQR=90°⇒ ∠PQS=45° ⇒ 6x-21=45 ⇒6x=66 ⇒x=11°
5x^2 + 19x + 12=0
how do i figure this out
Answer:
x=−4/5 or x=−3
Step-by-step explanation:
Step 1: Factor left side of equation.
(5x+4)(x+3)=0
Step 2: Set factors equal to 0.
5x+4=0 or x+3=0
x=−4/5 or x=−3
can someone help me with this please
Answer:
Alternate Interior angles
Alternate Interior angles are angles that are within two parallel lines.
So for the above question, our pairs of Alternate Interior angles are:
= Angle 4 and Angle 6
Angle 3 and Angle 5
Alternate exterior angles
Alternate exterior angles are angles that are found outside the two parallel lines
For our above question, our pairs of Alternate exterior angles are:
= Angle 1 and 7
Angle 2 and Angle 8
Corresponding angles
= Angle 1 and Angle 5
Angle 2 and Angle 6
Angle 4 and Angle 8
Angle 3 and Angle 7
Step-by-step explanation:
Alternate Interior angles
= Angle 4 and Angle 6
Angle 3 and Angle 5
Alternate exterior angles
= Angle 1 and 7
Angle 2 and Angle 8
Corresponding angles
= Angle 1 and Angle 5
Angle 2 and Angle 6
Angle 4 and Angle 8
Angle 3 and Angle 7
Sydney bought 3 cookies for 1.80 at this price how much would a dozen cookies cost
Answer:
$7.20
Step-by-step explanation:
A dozen = 12, Sydney bought 3 cookies for $1.80, 12 divided by 3 = 4, so 4 times $1.80 = $7.20
hope this helps :D
Answer:
7.20
Step-by-step explanation:
Please answer correctly! I will mark you as Brainliest!
Answer:
answer what?
Step-by-step explanation:
The largest tree in the United States is growing in Sequoia National Park in California. The tree is a giant sequoia whose trunk is roughly circular and has a circumference of 998 inches. Find the diameter of the tree. Use 3.14 for pi and round your answer to the nearest tenths place.
Answer:
318 (rounded)
Step-by-step explanation:
d = diameter
c = circumference
d = c/3.14
hope this helps you
The ratio of boys to girls at school today 4:7. If there are 350
boys at school today, how many girls are there? Round
down.
Answer:
There should be about 612 girls
Step-by-step explanation:
350 divided by 4 = 87.5
87.5 x 7 = 612.5
round 612.5 down, which gets 612
I NEED HELP QUICKLY
No Links or Files you will be reported
Based on the graph, what is the solution set to the equation −30+9x=−0.5x|x−1|−2?
The solution set to the equation is {____}.
Answer:
{ 3 }
Step-by-step explanation:
-30+9x=-0.5 |x-1| -2
from the graph, we can see that both curves intersect at (3,-3)⇒x=3
put x=3 in LHS&RHS
⇒LHS=-30+9(3)=-3
RHS=-0.5 |3-1|-2=
-1/2×2-2=-1-2=-3
so the answer will be 3..
hope it helps..
have a great day!!
use the pre image to find the coordinates. PLEASE HELP DUE BY 10:15
Answer:
m(3,1)
j(0,0)
E(0,-1)
x(5,0)
The length of a tropical garden at a conservatory is 5 feet more than its width. A
walkway 2 feet wide surrounds the outside of the garden. If the total area of the
walkway and garden is 126 square feet, find the dimensions of the garden,
1.2 mi =
ft someone pls tell me I have a test tomorrow!!
Answer: 6336 ft.
Step-by-step explanation:
If you were asking what 1.2 miles equals in feet, your answer would be 6336 feet. Good luck on your test tomorrow!
Answer:
6336 feet
Step-by-step explanation:
each mile has 5280 feet. Simply multiply 1.2 by 5280 to get your answer
What is the value of y? Enter your answer, as an exact value in the box.
Step-by-step explanation:
[tex] \sin(30) = \frac{y}{6} \\ y = 6 \times \sin(30) = 3[/tex]
Answer this question to get marked as barinliest!!!!
A dartboard has a diameter of 30 inches. What are its radius and circumference?
Answer:
radius = 15 in.
circumference = 94.2 in.
Step-by-step explanation:
radius = diameter/2 = 30 in./2 = 15 in.
circumference = (pi)d = 3.14 * 30 in. = 94.2 in.
A 20-ounce soft drink costs $1.80. A 12-ounce soft drink costs $1.32.
Answer:
rfgvsdgsgvbd fs e gbaebg g
Step-by-step explanation:
CAN SOMEONE HELP ME, ILL GIVE BRAINIES AND PLEASE NO LINKS
A business owner receives a $5,000 loan with 13%
interest,charged at
the end of each year.
Write an expression to represent the amount owed, in dollars, after the
given number of years of making no payments.
1. after 1 year
2. after 2 years
3. after tyears
Answer:
Step-by-step explanation:
Given;
Loan = $5,000
Interest rate = 13% charged at the end of each year
Question 1. Expression to represent the amount owed, in dollars, after;
a. After 1 year.
Owed amount = Loan + accrued interest= $5000 + ( 13% * $5000 * 1 year )
= 5650
b. After 2 years.
Owed amount = Loan + accrued interest
= $5000 + ( 13% * $5000 * 2 years )
= $6300
c. After t years
Owed amount = Loan + accrued interest= $5000 + ( 13% * $5000 * t years )= $5000 + $650t
Question 2. Explain how to convince someone that your expression for t years is correct.
Amount owned= borrowed amount + accrued interest
Accrued interest = Interest rate per year * Loan amount * time in years ( for simple interest case )
Loan amount = $5000
Time = t years
Interest rate = 13% per year
Accrued interest = 13% * $5000 *t years= $650t
Amount owned will therefore be; = Loan amount + Accrued interest
= $5000 + $650t