Will mark brainliest!plz help
EXTRA POINTS!
Answer both questions...
Scientists discovered the ozone layer was depleting at a rapid rate. At the beginning of the study the ozone layer was 3 millimeters thick. Throughout the study it depleted at a rate of 0.04 Millimeters per week.
Which function can be used to find the thickness of the ozone layer in meteres x days sconce the study ?
A) T(x)=-0.04(x+3)
B) T(x)=0.04(x+3)
C) T(x)=0.04x+3
D) T(x)=-0.04x+3
Answers
Answer:
1. D
2. D
Step-by-step explanation:
Answer:
i thinks it's D im not so sure but i think it's D
Related Questions
There are 515 students who attend central middle school. Three out of every 5 students live within 1 mile of the school. How many students at central middle school live within 1 mile of the school?
Answers
Answer:
103 students live 1 mile away from the school.
Step-by-step explanation:
First dicide what the problem is really asking you then you end up getting divisoin them divide 515/3.
Suppose a system of two linear equations has one solution. What must be true about the graphs of the two equations?
They intersect at one point.
They intersect at two points.
They have the same slope.
They have the same y-intercept.
Answers
Answer:
They intersect at one point
Step-by-step explanation:
I took the test and got 100%
Answer:
They have to intersect at one point
Step-by-step explanation:
the diagram shows a right-angle triangle.
Answers
Answer:
Step-by-step explanation
The shortest length of the right-angled triangle is 4 cm.
What is a right-angle triangle?A right-angled triangle is a triangle, that has one of its interior angles equal to 90 degrees or anyone angles is a right angle.
Given is, the diagram shows a right-angle triangle.
We have area of the right-angle triangle = 18 cm²
We know that area of a right-angle triangle = 1/2(base)(height)
18 = 1/2(x - 1)(x + 4)
36 = (x - 1)(x + 4)
x² + 4x - x - 4 = 36
x² + 3x - 4 = 36
x² + 3x - 4 - 36 = 0
x² + 3x - 40 = 0
x² - 5x + 8x - 40 = 0
x(x - 5) + 8(x - 5) = 0
x + 8)(x - 5) = 0
x = -8 or 5
we can only use positive numbers because length can't be negative,
Thus, x = 5
The shortest side is definitely one of the 2 legs. The hypotenuse of a triangle is the longest side.
Therefore,
height = x - 1 = 5 - 1 = 4 cm
base = x + 4 = 5 + 4 = 9 cm
Hence, the shortest length of the right-angled triangle is 4 cm.
learn more on right-angled triangle here:
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Write the equation in point-slope form
of the line that passes through the point
(4, -7) and has a slope of -1/4.
Answers
Answer:
first i know but idk then
EASY PLEASE HELP PLEASE HELP 15 POINTS...PLEASE HELP
Answers
Answer: its is 3
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
Which of the tables represents a function? Table AInput Output 4 3 3 2 3 1 Table BInput Output 1 3 3 5 5 7 Table CInput Output 0 0 1 4 1 5 Table DInput Output 4 1 4 2 4 3 Table A Table B Table C Table D
Answers
Answer:
The answer is Table B. Because only table B. doesn't have repeating x or domain.
Answer:
I think the answer might be b
Step-by-step explanation:
Find the midpoint of the segment with the following endpoints.
(5,5) and (1,1)
Answers
Answer:
(3,3)
Step-by-step explanation:
x=(5+1)/2=3
y=(5+1)/2=3
How do you divide mixed fractions
Answers
Answer:
See my explanation below.
Step-by-step explanation:
Let's start with two random mixed numbers.
[tex]4\frac{3}{5}[/tex] ÷ [tex]5\frac{1}{4}[/tex]
The first step is starting with [tex]4\frac{3}{5}[/tex]. Think about going from the denominator to the number on the left. After you remember that rule multiply 4 by 5. You should get 20. After that, you add by the numerator. 20 + 3=23
This is how it would be written.
[tex]\frac{23}{5}[/tex]
Do the same for the next mixed number. 5 x 4 = 20 and add by the numerator 21.
[tex]\frac{21}{4}[/tex]
After this is done. You will multiply by those fractions. [tex]\frac{23}{5}[/tex] x [tex]\frac{21}{4}[/tex] = [tex]\frac{483}{20}[/tex] we would write it as [tex]24\frac{3}{20}[/tex] as a mixed fraction.
I hope this helps!
Select the correct answer. Which equation, when solved, gives 8 for the value of x?
Answers
The 3rd equation, as if you solve for x as shown, you will end up with equation x=8.
[tex]\frac{5}{4}x-\frac{3}{2}x=-4+2[/tex]
[tex]\frac{5}{4}x-\frac{6}{4}x=-2[/tex]
[tex]-\frac{1}{4}x=-2[/tex]
[tex]x=8[/tex]
The manager of a garden store decides to hold a Buy 3, Get 1 Free sale on vegetable plants. The sale is held for one week and a total of 636
vegetable plants were sold (not including the ones given away for free). If each plant cost the store $2.90, how much money did the store lose
by giving away the free plants?
Answers
Answer:
the shop lost $922.20 by giving away free vegetable plants.
Step-by-step explanation:
you would start by dividing 636 by two to see how many free vegetable plants were given away.
636 / 2 = 318
this shows us how many free vegetable plants were given for free, so then to find how much money the store lost giving them away for free, you would multiply 318 by 2.9
318 x 2.9 = 922.2
Therefore the shop lost $922.20 by giving away free vegetable plants.
help me please , the question is in the picture .
Answers
Answer: 4.2x10^5=420000
Step-by-step explanation: its a positive five so you go in the positive direction from the decimal but if it was a negative you could go the other way (hope this helps)
Which equation is equivalent to y – 6 = –12(x + 4)?
A. y = –6x – 48
B. y = 6x – 48
C. y = –12x – 42
D. y = –12x – 54
Answers
Answer:
Y-6 = -12 (x+4) Y = -12x - 48 + 6 Y = -12x - 42 answer is c
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[tex]y - 6 = - 12(x + 4)[/tex]
[tex]y - 6 = - 12x - 48[/tex]
Add sides 6
[tex]y - 6 + 6 = - 12x - 48 + 6[/tex]
[tex]y = - 12x - 42[/tex]
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
The correct answer is (( C )) .
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
Please help!! I’m stuck on this one haha
Answers
Answer:
Ready to help soon as we know what that "one" is
Answer:
hahaha where is the pic
Step-by-step explanation:
a force of 10 newtons act in a direction 75 above horizontal moving an object 15 meters from (0,0) to (15,0). What is the work done by the force?
A. 2.59 joules
B. 3.88 joules
C. 38.82 joules
D. 150.00 joules
Answers
Answer:
C
Step-by-step explanation:
i think
The required work done is 38.82 joules.
Work done to be determine for force of 10 newton on angle of 75° for 15 meters.
Work done is define as the force required to move an object by some displacement.
Here, work done = force x displacement x cosФ
= 10 x 15 x cos75°
= 150 x 0.25
= 38.82 joules
Thus, the required work done is 38.82 joules.
Learn more about work done here:
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please help me in math
Answers
so you find the size difference inbetween each term which is -5 so you know there will be -5n in your formula so then you need to make n= 1 (for the first term) so that equals -5 but you want -3 so you need to find what + -5 equals -3 which is 2.
So now you know your answer is 2-5n
write the polynomial in standard form 3-3m+4m^{2} -1/2m^{6}
Answers
Answer:
[tex]3-3m+4m^2-\frac{1}{2} m^6[/tex]
Step-by-step explanation:
What is the value of v? Please provide an explanation, thanks!
Answers
Answer:
13
Step-by-step explanation:
(180-(11v+15)+9v-8+6v-9=180
4v+148=180
4v=52
v=52/4
=13°
Im Giving Brainliest............. Someone Plzz Help?
Answers
Answer:
For the first one 25.925%
The second is 23.333%
The third is 27.27%
Let me know if this helps!
What is 36 x 36
A. 1296
B. 1256
C. 1298
D. 1301
Answers
Answer:
A.1296
Step-by-step explanation:
Answer:
A. 1296
Step-by-step explanation:
36 x 36 = 1296
I put it into a calculator..
Please Answer! I have been working on this for an hour and can't get it!
Given A (4,2) and B (-1,y), what is y when the slope of AB is -7/5?
Answers
Answer: y= 9
Step-by-step explanation:
B = (- 1, y)
We know that the slope is -7/5 which is rise/run
Thankfully the run is 5 which is the exact distance from 4 to -1 so we would need to apply -7 to 2 which would be 5
The answer is
B = (- 1, 5)
Can you show me the answers step by step please?
Answers
Answer:
3490
Step-by-step explanation:
Is this negative positive or no correlation
Answers
Step-by-step explanation:
No correlation
WILL GIVE BRAINLIEST
Select all the correct answers.
Which relations represent functions?
Answers
Answer:
First and third relations represent functions.
Step-by-step explanation:
First and third relations are one-to-one and many-to-one respectively, therefore these are functions.
Second and fourth relations are one - to - many, thus they are not functions.
Answer:
first and third
Step-by-step explanation: just took the test like 5 secs ago
a(b + c) = a • b + a • c, where a, b, and c are real numbers
Use the distributive property to simplify the expression.
8(3 + 4) = 24 +
Answers
Answer:
a(b + c) = a • b + a • c
=> 8(3 + 4) = 8.3 + 8.4 = 24 + 32
Step-by-step explanation:
Answer:
The answer for the blank is 32
Step-by-step explanation:
what is the interior of a decagon
Answers
Answer:
Decagon Definitions A decagon is a 10-sided polygon, with 10 interior angles, and 10 vertices which is where the sides meet. A regular decagon has 10 equal-length sides and equal-measure interior angles. Each angle measures 144° 144 ° and they all add up to 1,440° 1,440 °.
Step-by-step explanation:
really hope this helps, Good luck ^w
Please help me i'm not very good at math :))
Answers
Answer: (1, 5)
Explanation:
You really just have to input all the variables into the inequality and see if it is accurate.
(2, 4)
4 > 2(2) 4 > 4 no, it is equal to, not greater than
4 > 3 yes
(0, 3)
3 > 2(0) 3 > 0 yes
3 > 3 no, again, equal to
(4, 6)
6 > 2(4) 6 > 8 no
6 > 3 yes
(1, 5)
5 > 2(1) 5 > 2 yes
5 > 3 yes
Notice that two line segments are formed on each transversal between the central parallel line and the outer parallel lines. Measure the lengths of the four line segments.
Answers
Answer:
Picture?
Step-by-step explanation:
Answer:
heres the picture
Step-by-step explanation:
PLEASE HELP ME I AM PAYING 100 POINTS!!
Mal works at a photo gallery. He charges $50 for a large photo and $40 for a large frame. Sales tax is 5%. How much total tax will a customer pay on both?
Answer the questions to show how to write and simplify expressions that represent the problem.
1. One way to calculate the total tax is 0.05(50 + 40). Use the order of operations to evaluate this expression. Show your work.
Write your answer in the space below.
2. Use the distributive property to expand 0.05(50 + 40).
Write your answer in the space below.
3. Find the total tax using the expanded expression. Did you get the same answer as you did by evaluating the original expression?
Write your answer in the space below.
4. Which expression, the original expression or the expanded expression, involves finding the total cost first, then calculating the tax on that total?
Write your answer in the space below.
Answers
Answer:
1. 0.05x90
2. 4.5
Step-by-step explanation:
1. 0.05(50+40)
50+40=90
0.05x90
2. 0.05(50)+0.05(40)
0.05x50= 2.5
0.05x40= 2
2.5+2= 4.5
That all i could do sorry but I hope this helps
Answer:
1. 0.05x90
Step-by-step explanation:
Write each fraction in simplest form.
1) 4/8
2) 3/9
??
22
3) 9/12
??
4) 3/6
??
Answers
Step-by-step explanation:
1. 4/8=1/2
2.3/9=1/3
3.9/12=3/4
4.3/6=1/2
2/3y + 3/4 = 8/9
help
Answers
Answer:
y = 5/24
Step-by-step explanation:
2/3 = 24/36
3/4 = 27/36
8/9 = 32/36
32-27 = 5
5/36 / 2/3 = 15/72 = 5/24
Answer:y=5/13
Step-by-step explanation:
8/9-3/4 is 5/36
divide by 2/3 is