Step-by-step explanation:
circle has an area of 500 inches if we multiply it by 3 we get 1500 inches
Review the experimental question and hypothesis. Which statement best explains why the hypothesis is testable?
Question:
How does the amount of water individuals drink everyday affect the number of facial blemishes they receive every month?
Hypothesis:
If the amount of water people drink everyday affects the concentration of certain hormones in their blood, then increasing the amount of water consumed daily will decrease the number of facial blemishes they receive each month.
The hypothesis includes an explanation and makes a prediction.
The hypothesis is written using an "If …, then …" format.
The hypothesis includes both an independent variable and a dependent variable.
The hypothesis can be used to accurately explain observable facts.
Answer:
Step-by-step explanation:
I think the answer should be that there is an if -- then way the statement is worded. Quite often if then statements are used in this kind of experiment. Beyond that I can't make any comment. I don't know that it truly is testable, but it sounds like it should be.
Answer:
The hypothesis includes an explanation and makes a prediction.
Step-by-step explanation: I took the quiz on primavera and got that answer
Evaluate the expression when x=6 and y=-3.
-x+7y
Answer:
-27
Step-by-step explanation:
Let x = 6 and y = -3
[tex]-(6)+7(-3)\\-6-21\\-27[/tex]
Solve the formula for the given variable.
-2x - 6 = 4x
Please helppp
Answer:
s snsnnssjsjjsnsnsjs
es 17 es
2
7) through: (-3,0), slope
3
Answer:
Step-by-step explanation:
Point-slope equation for line of slope m that passes through (x₀, y₀):
y-y₀ = m(x-x₀)
Slope =3 and (x₀, y₀)=(-3,0)
y = 3(x+3)
y = 3x+ 9
:::::
Slope-intercept equation for line of slope m and y-intercept b:
y = mx+b
m=1 and b= -4:
y = x-4
If (x^2−1)/(x+1) = 3x + 5, then x + 3 =
(A) -3
(B) -2
(C) 0
(D) 2
(E) 4
3. Ms. Mason bought 24 bags of chips for $0.52 each. What was the total cost of
the pencils before sales tax was added? Show your work!
Answer:
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Circled one please help
Formula-
If a set has “n” elements, then the number of subset of the given set is 2n and the number of proper subsets of the given subset is given by 2n-1. Consider an example, If set A has the elements, A = {a, b}, then the proper subset of the given subset are { }, {a}, and {b}
Symbol that can be used-
The symbol "⊆" means "is a subset of". The symbol "⊂" means "is a proper subset of".
Hope it helps you... pls mark brainliest if it helped you.
Fifty three million, eight hundred thousand and thirteen
Answer:
53,800,013
need brainliest!!!
Reflect the shape below across the line x = - 2 . Label the new coordinates.please help me.
Answer:
Step-by-step explanation:
How do we solve this? Please help?
Answer:
f'(1) = 7/2
Step-by-step explanation:
We are given the function: [tex]f'(x)=\frac{7}{2\sqrt{x} }[/tex]
To find f'(1), substitute the value for x and evaluate it.
[tex]f'(1)=\frac{7}{2\sqrt{1} }\\\\f'(1)=\frac{7}{2(1)}\\\\f'(1)=\frac{7}{2}[/tex]
Therefore, f'(1) = 7/2.
You are going to decorate one wall of your bedroom by putting a border along the top. The wall is a square wall with an area of 256 square feet what is the length of the border that you will need for your wall?
Answer:
16 ft
Step-by-step explanation:
Each edge of wall = √256 ft = 16 ft
will give someone a brainlyest pls help! thank you
Answer:
D.
Step-by-step explanation:
5/4=1.25, -2[tex]\sqrt{2}[/tex] = -2.828
Therefore,
1.25 (5/4), 1.04, -0.34, -2.828 (-2[tex]\sqrt{2}[/tex]), -17
596 is divisible by 2?
a.yes
b.no
Answer:
It's yes
Step-by-step explanation:
Answer:
yep
Step-by-step explanation:
number is even, so it can be evenly divided by 2. :)
the number of boys and girls in a school are 480 and 576 respectively. express the ratio of the number of boys to that of girls
Answer:
boys : girl
5 : 6
Step-by-step explanation:
boys : girl
480: 576
Divide each side by 96
480/96 : 576/96
5 : 6
Boys = 576
Girl = 480
GCF of 576 and 480 is 96.Now , dividing both numbers by GCF.
[tex] \large\bf{\red{ \longrightarrow}} \tt \: \frac{ \cancel{480} \: ^{5} }{ \cancel{576} \: ^{6} } \\ [/tex]
[tex] \large\bf{\red{ \longrightarrow}} \tt \: \frac{5}{6} \\ [/tex]
⇛Hence , the ratio will be 5 : 6The products of (2,3) and (-2,-3) is
Answer:
(-4,-9)
Step-by-step explanation:
multiply (a,b)
11z/(z+3) = 13 - i , z∈C please solve it
[tex]\frac{11z}{z+3}=13-i,z\in\mathbb{C}[/tex]
First, multiply both sides by [tex]z+3[/tex],
[tex]11z=(13-i)(z+3)[/tex]
[tex]13z+39-iz-3i=11z[/tex]
Collect terms and put z on the left,
[tex]2z-iz=3i-39[/tex]
[tex]z(2-i)=3i-39[/tex]
[tex]z=\frac{3i-39}{2-i}[/tex]
Division of complex numbers is defined by multiplying both denominator and numerator with complex conjugate of the denominator,
[tex]z=3\frac{(i-13)(2+i)}{(2-i)(2+i)}[/tex]
Multiply out,
[tex]z=3\frac{2i-1-26-13i}{5}[/tex]
[tex]z=3\frac{-11i-27}{5}[/tex]
The result is,
[tex]z=-\frac{81}{5}-\frac{33}{5}i[/tex]
Hope this helps :)
A driveway is 2/5 kilometers long. Omar walks 1/3 of the driveway. How far does Omar walk?
Answer:
2/15 kilometers
Step-by-step explanation:
Multiply the distance by the fraction walked
2/5 kilometers * 1/3
2/5 * 1/3
2/15 kilometers
Which graph represents the given equation? y=3/2x^2+4x-2
Answer:
y=3/2x^2+4x-2
Hope it helps
simplify by factorization process 35²-15²
Answer:
1000
Step-by-step explanation:
35^2: 1225
15^2: 225
1225 - 225
A ball thrown upwards hits a roof and returns back to the ground.
The upward movement is modeled by a function [tex]s=-t^2+3t+4[/tex]
s= −(t^2)+3t+4
and the downward movement is modeled by [tex]s=-t^2+3t+4[/tex]
s= −2(t^2)+t+7, where s is the distance (in metres) from the ground and t is the time in seconds.
Find the height of the roof from the ground.
Answer: 6 m
A ball thrown upwards from the altitude 4 m,
hits a roof and returns back to the ground.
upward movement: s= −t²+3t+4
downward movement: s=-2t²+t+7
Step-by-step explanation:
Let's calculate the intersection:
[tex]- t^2+3t+4 =-2t^2+t+7\\\\t^2+2t-3=0\\\\t^2+3t-t-3=0\\\\t(t+3)-(t+3)=0\\\\(t+3)(t-1)=0\\\\t=-3 \ (exclude)\ or\ t=1\\\\if\ t=1 \ then\ s=-1^2+3*1+4=6\\\\height\ is\ 6\ m.\\[/tex]
Sorry, i have forgotten the picture.
charles is 22 years older than his sister danielle. in 10 years he will be twice as old as danielle. how old is each of them now?
9514 1404 393
Answer:
Charles: 34Danielle: 12Step-by-step explanation:
If Charles is 22 years older, he will be double Danielle's age when she is 22. If that is 10 years from now, Danielle is 12 and Charles is 34.
solve for x please help (show work)
Answer:
x=-2
Step-by-step explanation:
3x+8x - 3 = -25
Combine like terms
11x -3 = -25
Add 3 to each side
11x -3+3 = -25+3
11x = -22
Divide by 11
11x/11 = -22/11
x = -2
[tex]\large\bf{\pink{ \longrightarrow \: }} \tt \:3x \: + \: 8x \: - \: 3 \: = \: - 25[/tex]
[tex]\large\bf{\pink{ \longrightarrow \: }} \tt \:11x \: - \: 3 \: = \: - 25[/tex]
[tex]\large\bf{\pink{ \longrightarrow \: }} \tt \:11x \: = \: - 25 \: + \: 3[/tex]
[tex]\large\bf{\pink{ \longrightarrow \: }} \tt \:11x \: = \: - 22[/tex]
[tex]\large\bf{\pink{ \longrightarrow \: }} \tt \: x \: = \: {\cancel\frac{ {- 22} \:^{ - 2} }{11}} \\ [/tex]
[tex]\large\bf{\pink{ \longrightarrow \: }} \tt \:x \: = \: - 2[/tex]
Which of the following could represent the
interval (8,35)? Select two that apply.
A 8
B 8
C {x|8
D {x|8
E [8,35]
Use the following conversions to answer the question.
60 seconds = 1 minute
60 minutes = 1 hour
24 hours = 1 day
How many minutes are there in a week?
A. 420
B. 1,400
C. 10,080
D. 604,800
Answer:
C. 10,080
Step-by-step explanation:
We can multiply to find how many minutes there are in 1 day.
24 * 60 = 1,440
Now, we can multiply that value by 7 to find out how many minutes there are in 1 week.
1,440 * 7 = 10,080
Best of Luck!
helppppppppppppppppp pllllzzzzz
a
b
c
Answer:
b rectángulo de la referencia de los números que están por debajo de la construcción de un triángulo obtusangulo
14
11. The number of kilograms of corn needed
to feed 5000 chickens is 30 less than twice
the number of kilograms needed to feed
2800 chickens. How many kilograms of
corn are needed to feed 2800 chickens?
(A) 70
(B) 110
(C) 140
(D) 190
(E) 250
Answer:
x = 2515
Step-by-step explanation:
5000 = 2x - 30
2800 = x
have a great day! I hope this helps!140 kilograms of corn is needed to feed 2800 chickens.
What is Equation Modelling?
Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.
We have the number of kilograms of corn needed to feed 5000 chickens is 30 less than twice the number of kilograms needed to feed 2800 chickens.
Assume that [x] kilograms of corn is needed to feed 2800 chickens.
for 2800 chickens → [x] Kg of corn is needed
for 1 chicken → [x/2800] Kg of corn is needed.
So, we can write -
5000 × [x/2800] = 2x - 30
50x/28 = 2x - 30
50x = 28(2x - 30)
50x = 56x - 28 x 30
50x - 56x = - 840
- 6x = - 840
6x = 840
x = 140
Therefore, 140 kilograms of corn is needed to feed 2800 chickens.
To solve more questions on Equation Modelling, visit the link below -
brainly.com/question/14441381
#SPJ2
ZA and ZB are complementary angles. If m A = (8x + 27)° and m
ZB = (6x – 21)°, then find the measure of ZB.
Answer:
15
Step-by-step explanation:
Complementary angles add to 90 degrees
8x+27 + 6x-21 = 90
Combine like terms
14x+6 = 90
Subtract 6 from each side
14x+6-6 = 90-6
14x = 84
Divide by 14
14x/14 = 84/14
x=6
We want angle B
B = 6x-21 = 6*6-21 =36-21 = 15
PLEASE HELP ASAP
Solve the inequality [tex]\sqrt[3]{x+4} \ \textgreater \ \sqrt[2]{-x}[/tex]
A) x < 2
B) x > 2
C) x > –2
D) x < –2
Linear relationship
Answer:
y=2x-1
Step-by-step explanation:
Consider two points, (-2,-5) and (-1,-3)
slope = ((-3)-(-5))/((-1)-(-2))=2/1=2
b=-5-(2)×(-2)=-1
putting it into y=mx+c,
y=2x-1
How is the next term in this sequence found?
−6, −4, −2, 0, 2
A)
A) Add 2 to the previous term.
B) Add −2 to the previous term.
C) Multiply the previous term by 2.
D) Multiply the previous term by −2.
Answer:
add 2 to every privious term
Step-by-step explanation:
-6+2=-4
-4+2=-2
-2+2=0
0+2=2
