Answer:
(y - 25) = - 0.25(x - 20)
Step-by-step explanation:
Given that :
Height of candle after burning for 20 minutes = 25 cm
Height after burning for 1 hr (60 minutes) = 10 cm
Height (y) in cm of candle x minutes after being lit:
Using the equation :
(y - y1) = m(x - x1)
m = (change in y / change in x)
Change in height within 60 minutes :
Height at 20 minutes = 25cm
Height after an hour = 10
Change in height per hour = (25 - 10) = 15cm
Hence, m = change in height per minute
15cm / 60 = 0.25cm ( - 0.25) (decrease in height)
y1 = 25 ; x1 = 20
(y - y1) = m(x - x1)
(y - 25) = - 0.25(x - 20)
Whats the answer to log [tex]log_{x+2} (9x) =2[/tex] ?
Answer:
x= 1, 4
Step-by-step explanation:
[tex]log_{x+2} (9x) =2\\\\
9x = (x+2)^2 \\\\
(x+2)^2 - 9x = 0\\\\
x^2 +4x + 4-9x = 0\\\\
x^2 - 5x +4= 0\\\\
x^2 - 4x-x+4=0\\\\
x(x-4)-1(x-4)=0\\\\
(x-4)(x-1)=0\\\\
x-4 =0\: or\: x - 1=0\\\\
x = 4\: or\: x = 1\\\\
x = 1,\: 4
[/tex]
find ten rational numbers between -2/5 and 1/2 (i need in a proper explaination please answer fasttt!!!)
Answer:
-0.39, -0.38, -0.37, -0.36, -0.35, -0.34, -0.33, -0.32, -0.31, -0.3
Step-by-step explanation:
Rational numbers are basically any number that are not numbers with non-recurring decimals or non-terminating decimals.
-[tex]\frac{2}{5}[/tex] = -0.4
[tex]\frac{1}{2}[/tex] = 0.5
Thus, any number from -0.4 to 0.5 with decimals (if any), that will terminate and not stretch forever is rational. [tex]\frac{1}{3}[/tex] is not rational. Decimals that repeat are also rational. pi is not rational.
Help me help me help me help me help me help me
Answer:
no that is incorrect I know because i took this test already
Answer:bnjckfkf
Step-by-step explanation:
Dhcj
the sum of two numbers is 9 and their difference is 1
Answer:
5 and 4
Step-by-step explanation
5 plus 4 is 9 and 5 and 4 are only one space apart
Write an equation of the line that passes through the given point and is
perpendicular to the given line.
Answer: how old r u lol
Step-by-step explanation:
Mr. Clarkston has a box of colored beads containing 3 pink, 6 purple, 3 yellow, 4 gold, and 2 silver beads. If a student reaches into the box and removes a bead without looking, what is the probability of removing a bead that is purple?
A) 5/6
B) 1/3
C) 2/3
D) 1/6
Answer:
B
Step-by-step explanation:
there are 18 beads and 6 of them are purple. 6/18 simplified is 1/3
3(x-3)= -9+3x
no solution, one solution, or infinitely many solution?
Answer:
Step-by-step explanation:
3(x-3)= -9+3x
3x-9=-9+3x
IMS
PLZZZZZZZZZZZZZZZ HELP I HAVE NO CLUE ON WHAT THE ANSWER ARE!!! PLZZZZZZZZZZZZZZZZZZZZZZZZZ HELP!!!!
Which expressions are equivalent to the expression (look at the first image) Select all that apply.
ANSWERS CHOICES IN SECOND IMAGE
AND EXPLAIN ITTTTTTT PLZZZZ
it seems like E is the one that looks simlar
if not im
so sorry
The y-intercept of the line whose equation is x - y= 7 is 0-7 01 07
Answer:
Y intercept is 7 here,
Look my first question
jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
Answer: jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj its 8
Step-by-step explanation:
PLEASE HELP ME please!
Answer:
x < -1
so its C
Step-by-step explanation:
One number is three more than the second number. Twice the first is nine less than three times the second. What are the two numbers?
Answer:
16 and 13
Step-by-step explanation:
Let the second no is x
First no = x+3
Twice the first is nine less than three times the second.
We can write in the form of equation as follows :
2(x+2) = 3x-9
Solving brackets first
2x+4=3x-9
Taking like terms together
9+4=3x-2x
13=x
First no = x+3 = 13 + 3 = 16
So, first and second numbers are 16 and 13 respectively.
need help asap please
Answer:
If your looking for #11 I think the answers -5
Step-by-step explanation:
IS ANYONE GOOD AT MATH!!!!!!!!!!
Answer:
yes i am!!!!!!
Step-by-step explanation:
the quadrilateral obtained by joining the mid points of adjacent sides of a square is?
Answer:
Square
Step-by-step explanation:
the quadrilateral obtained by joining the mid points of adjacent sides of a square is a square.
Tonya drove 343 miles the first day of her trip. How many days will it take her to drive the remaining 1200 miles if she continues at the same rate?
Answer:
It would take Tonya about 3.5 days
Step-by-step explanation:
[tex]1/343 = .003[/tex]
[tex].003*1200=3.5[/tex]
Answer:
nmnbbmnvbmn
Step-by-step explanation:
,jhnjbghjnvfgbhfbvn
Jalil and Victoria are each asked to solve the equation ax – c = bx + d for x. Jalil says it is not possible to isolate x because each x has a different unknown coefficient. Victoria believes there is a solution, and shows Jalil her work:
ax – c = bx + d
ax – bx = d + c
x (a – b) = d + c
x = x equals StartFraction d plus c Over a minus b EndFraction.
How can Victoria justify Step 3 of her work?
Rewrite the expression on the left using the distributive property.
Multiply both sides by x.
Rewrite the expression on the left using subtraction.
Divide both sides by x.
Answer:
Rewrite the expression on the left using the distributive property.
Step-by-step explanation:
Answer:
a
Step-by-step explanation:
Two numbers have a sum of 30. Half of their difference is 7. Find the numbers.
Answer:
15
Step-by-step explanation:
I think it is but am not sure
Answer:
The two numbers are 22 and 8
Step-by-step explanation:
22 + 8 = 30
22 - 8 = 14
14 ÷ 2 = 7 or 1/2 of 14 is 7
the sum of six consecutive positive integers is 2013,which is the largest of these
Answer:
67
Step-by-step explanation:
idonfthsjbwjsnsksmksns
Se desea sujetar un poste de 20 metros de altura con un cable que parte de la parte superior del mismo hasta el suelo de modo que forme un ángulo de 30 metros.¿Cual es la longitud del cable?
Answer:
la longitud del poste es ... creo que 60? No soy bueno con los medidores, pero espero que esto ayude.
in JKL, if m<J is 7 less than m<L and m<K is 21 less than twice m<L, find the measure of each angle
Answer:
Step-by-step explanation:
First you must know that the sum of angle in a triangle is 180degrees
In triangle JKL, <J+<K+<L = 180 ..... 1
If m<J is 7 less than m<L , then;
m<J = m<L -7 ..... 2
If m<K is 21 less than twice m<L then;
m<K = 2m<L - 21 ...... 3
Substitute 2 and 3 into 1;
from 1; m<J+m<K+m<L = 180
m<L - 7 + 2m<L - 21 + m<L = 180
4m<L - 28 = 180
4m<L = 180+28
4m<L = 208
m<L = 208/4
m<L = 52 degrees
Get m<J;
m<J = m<L -7
m<J = 52-7
m<J = 45 degrees
Get m<K;
m<K = 2m<L - 21
m<K = 2(52) - 21
m<K = 104 - 21
m<K = 83degrees
The Rodriguez family took 5.5 hours to gather information for their Schedule A. The itemized deductions saved them $4,095 in taxes. What was the mean savings per hour to fill out Schedule A tax form?
Answer:
The mean saving was $744.54 per hour to fill out Schedule A tax form.
Step-by-step explanation:
Given that:
Time taken by Rodriguez family = 5.5 hours
Amount saved in taxes = $4095
5.5 hours = $4095
The mean savings per hour can be calculated by dividing the total hours taken by the amount saved in taxes.
1 hour = [tex]\frac{4095}{5.5}\\[/tex]
1 hour = $744.54
Savings per hour = $744.54
Hence,
The mean saving was $744.54 per hour to fill out Schedule A tax form.
the ratio of the heights 1.50 cm and 75 cm of two person can be written as
Answer:
1 : 50
Step-by-step explanation:
1.50 : 75
Multiply by 2 so there are no decimals.
3 : 150
Divide by 3 to simplify.
1 : 50
Answer:
1:50 & 1:5
The ratio of heights 1.50 m and 75 cm of two people can be written as 1:50 and 1:5.
Suzy bought an Ipad for $432 and case for $57. If she gives the cashier $550, how
much will she get back?
Answer:
61 $
Step-by-step explanation:
Answer:
she would get 61 dollars back
Step-by-step explanation:
432+57=489 550-489=61 dollars
The three linear equations have y-intercepts of -3, 8 and 7 respectively. Yet, a function can have only
one y-intercept. Which of these is the y-intercept of this function? Explain how you made your choice.
Answer:
hello your question have some missing part attached below is the missing part
answer : y ( intercept ) = 8
Step-by-step explanation:
Having three linear equations with y-intercepts of -3, 8 and 7,
To determine The y-intercept of this function ;
x = 0 and x = 0 which comes in -2 ≤ x < 3
f' - f(x) = x + 8 ,
therefore the y intercept in f(0) = 0 + 8 = 8
Hallo this is on demos so please try and halp :D( i just organized it thats not what I think)
Answer:
Sorry
Step-by-step explanation:
write a two-step equation that involves division and addiction and had a solution of x=-25
Answer:
I didnt get
Step-by-step explanation:
You mean,
x + 0.y + 25 = 0
Step-by-step explanation:
2x-25=25
2x=50
x=50
2
x=25
hope u want this..
Question 1
Find the percent of change. Round to the nearest percent.
From $5 to $8
Answer:
60%
Step-by-step explanation:
So, the percent increase from $5 to $8 is 60%.
1. Find the sum of the measures of the angles of
a. A Quadrilateral
c. An Octagon
e. A 93-gon
b. A Heptagon
d. A Dodecagon
Answer:
E
Step-by-step explanation:
Find the product
(4p + 6)( 7p -5)
Answer:
28p^2+22p-30
Step-by-step explanation:
I'm a genius