Answer:
-8%
Step-by-step explanation:
Given : The humidity dropped an average of each hour over the last six hours.
which can be written as
Then , the total change in humidity in 6 hours will be:-
Hence, the total change in humidity = -8%
Margo studied for 20 minutes. How many seconds did she study?
A. 1,200
B. 800
C. 620
D. 120
Answer:
1200 because 12*60 is 1200
Select all true statements given the diagram below.
Answer: 1st, 2nd, & 3rd choice are all statements
Hannah made a ramp for her grandfather who was in a wheelchair. The ramp was 10 ft long and it was 5 ft away from the porch steps. How high were the porch steps?
Given :
Length of ramp( Hypotenuse ), l = 10 ft .
Length of base, b = 5 ft .
To Find :
How high were the porch steps.
Solution :
Let, height is h.
By Pythagoras theorem :
[tex]b^2+h^2=l^2\\\\h=\sqrt{l^2-b^2}\\\\h=\sqrt{10^2-5^2}\\\\h = \sqrt{75}\\\\h = 5\sqrt{3}\ ft[/tex]
Hence, this is the required solution.
Please help for brainliest.
Answer:
the answer is c
Step-by-step explanation:
sams candy store charges 2.50 per poud while cam charges 3 per pound meaning that sams candy is .50 cheaper per pound
can someone help me please
Answer:
greg
Step-by-step explanation:
heffly is a sociopath. he shall burn in the gates of hell
PLEASE HELP ME I REALLY NEED HELP IN ALGEBRA
(a) Does the graph represent a constant-rate relationship?
(b) Explain how you determined your answer in part A.
(c) If this is a constant-rate relationship, what is the constant rate?
Answer:
A no it is not
B his is because if you look at 1 on the x axis line you will see it matches 1 on the y axis but if you look at 4 on the x axis it is 2 on the y axis so it is not constant
C Thee was no constant relationship
hiiii please help if u can <3
Answer:
Step-by-step explanation:
given: triangle EDC is right angle isosceles triangle,AD and BC is perpendicular to AB.
statement reason
1. in triangle AED and BEC
a.∠ADE=∠EBC a.given( AD and BC is perpendicular to AB)
b.∠AED+∠DEC=∠EBD+∠ECB b. exterior angle of triangle is equal to two ∠AED =∠ECB opposite interior angle and substracting
(∠DEC=∠EBD=90°) from both side
c.ED=EC c corresponding sides of equal angle in
isosceles triangle are equal
2 ∴ triangle AED is congruent to BEC 2. by A.A.S axiom
A line passes through the point (10,2) and has a slope of 1/2. Write an equation in slope-intercept form for this line.
Answer:
Step-by-step explanation:
y - 2 = 1/2(x - 10)
y - 2 = 1/2x - 5
y = 1/2x - 3
Answer:
Step-by-step explanation:
You can read the slope right away.
y = 0.5x + b 1/2 = 0.5
The point will determine the y intercept
2 = 0.5*10 + b
2 = 5 + b
2-5 = b
b = - 3
The line is y = 0.5x - 3
use the discriminant to determine how many and what kind of solutions the quadratic equation x^2-x=1 has
Answer:
Two solutions
Step-by-step explanation:
x^2-x=1
plug into the discrimiant fomurla
The asnwer ends up being 5
which is positive, meaning that the discriminant has two solutions
Postitive number = Two solutions
The answer is 0 = One solution
Negative number = No solutions
:)
What is the equation of the line that passes through the point (−3,4) and has a slope of 1 ?
Answer:
y = x + 7
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Here m = 1, thus
y = x + c ← is the partial equation
To find c substitute (- 3, 4) into the partial equation
4 = - 3 + c ⇒ c = 4 + 3 = 7
y = x + 7 ← equation of line
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We have following equation to find the point-slope form of the linear functions.
[tex]y - y(0) = m \times ( \: x - x(0) \:) [/tex]
In which :
[tex]y(0) = y \: \: given \: \: point = 4[/tex]
[tex]x(0) = x \: \: given \: \: point = - 3[/tex]
[tex]m = slope = 1[/tex]
Now just need to put the coordinates and the slope in the above equation.
[tex]y - 4 = 1 \times ( \: x - ( - 3) \: )[/tex]
[tex]y - 4 = x + 3[/tex]
Add sides 4
[tex]y - 4 + 4 = x + 3 + 4[/tex]
[tex]y = x + 7[/tex]
Done...
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what could -15-5 represent
Answer:
-20
Step-by-step explanation:
-15 - 5 is -20.
I hope that this helps! :)
The expression (3+i)(1+2i) can be written Jim the form a +bi, where a and b are integers. What are the values of a and b?
Answer:
a = 1
b = 7
Step-by-step explanation:
We start by opening the brackets
We have;
3 + 6i + i - 2
= 1 + 7i
comparing with a + bi
a = 1 and b = 7
please help me with this i dont know wht im doing
Answer:
D: The slope is 3
Step-by-step explanation:
To figure out the slope, which is always a constant, you simply figure out the average displacement using the points we already know. This is described by the equation y2-y1/x2-x1. Let's use the ordered pairs (-3, 2) and (-1, 8) to figure this out.
8-2/-1-(-3) = 6/2 = 3
Another method you could use is to graph the points and figure out how many units y has to go up for every x over, or the "rise over run"
Either way, your slope is 3.
Answer:
its 3
Step-by-step explanation:
0.00045−2.5⋅10 −5 = what is the answer i been up all day
5 pounds of spaghetti costs 8 dollars. How much would 1 pound cost?
Answer:
1.6 dollars
Step-by-step explanation:
I hope this helped you
Answer:
1 pound of spaghetti = $1.60
Step-by-step explanation:
Since 5 pounds of spaghetti costs 8 dollars, simply divide 8 dollars by 5 to find the cost of 1 pound of spaghetti.
$8/5 = $1.60
Deku and reaper also what is 2-4=?
Answer:
the answer is -2
Step-by-step explanation: The answer is from google
Answer:
-2
Step-by-step explanation:
indeed brother
What is the measurement of this angle
Answer:
50 degrees
Step-by-step explanation:
If Steven was paid $12.00 for 3 hours of work, how much would he make for 2 hours of work?
Answer:
8 dollars
Step-by-step explanation:
12/3=4
4x2=8
determine the slope of the line that contains (-4,2) and (6,8)
In Will’s garden, 71 out of 200 plants have developed seeds. Which is closest to the percent of his plants that have developed seeds?
Answer: 35.5% of his plants have developed seeds
Step-by-step explanation:
200x5=1000
71x5=355
355/1000 35.5/100= 35.5%
Nate has an account that pays 2.76% simple interest per year and wants to accumulate $3,090 in interest from it over the next 15 years. How much money should Nate invest in this account to meet this goal?
a
$4,369.26
b
$4,373.77
c
$1,279.26
d
$7,463.77
Answer:
To achieve this goal, he must invest $7,463.77 ( d)
Step-by-step explanation:
mathematically;
simple interest = PRT/100
I = 3,090
P = ?
R = 2.76%
T = 15 years
3,090 = P * 2.76 * 15/100
100 * 3090 = 41.4 P
P = 309000/41.4
P = 7,463.77
Alana biked 15 miles in 1 hour. How many miles did she bike in 3 hours?
Answer:
45 miles
Step-by-step explanation:
15 miles = 1 hour
15 x 3 = x
x = 45
45 miles = 3 hours
Please help!!!!!
Fill in the following table with values, observe the pattern, and write an equation relating the second and fourth columns.
Answer: Answer from Plato
Step-by-step explanation:
Answer:
For the sin table:
Step-by-step explanation:
please can someone solve
*Geometry* Please help me answer 17. To 23
17. Longest side
18. Smallest side
19. *i think* parallel
20. hypothesis is false, and a contradiction is reached
21. must be greater
22. SAS (Side-Angle-Side)
23. (To answer this look back in your notes about the section, what other Inequality Theorem is talked about, since i don't know what section this comes from i cannot help you)
What is 180 inches in feet
Answer:15
Step-by-step explanation:
180÷12
Answer:
15 feet
Step-by-step explanation:
12 inches= 1 ft
180 inches* 1 ft/12 inches
inches and inches get canceled out and ft is the unit of measure now
180ft/ 12= 15 feet
Hope this helps!
Select the correct answer
Giving brainliest
Answer:
9
Step-by-step explanation:
just trust me, i did this stuff in like 2 grade
Answer:
9 miles
Step-by-step explanation:
from Pete's house to the store is 4 units
and from the store to the fair is 5 units
4+5=9 and 9 units= 9 miles
I hope this helped
In the circle below, Chords PQ and RS are parallel.
What is m
A. 80
B. 140°
C. 50°
D. 40°
PLEASE HELP ME ENEKELME PLEASE 10 POINTS!!
Answer:
40
Step-by-step explanation:
Can't remember the geometrical property
Answer:
40 is the answer there u go
math slope helpppp meeee
Answer:
1. -3/8 2. 1/2 3. -3/2
Step-by-step explanation:
You can use Y2-Y1/X2-X1 to find the answers
Ask me if you want it more in detail
HELP ASAP PLEASEEEE
Evaluate the expression: 73
The solution is _____.
Answer:
73 ,,,,,,,,,,,,,,,,,,,,,,,