Answer:
Because a drop in temperature means decrease in temperature therefore, we take an integer with negative sign and added to previous temperature.
Step-by-step explanation:
Drop in temperature means decrease in the temperature .When the temperature decreases then we take decrease value of temperature in negative integer. Because decrease means the temperature fall down .Hence , the decrease in temperature measure with negative sign .
For example, if we take temperature T= 70°C.
If the temperature decreases by 5°c then the temperature
Decrease in temperature=-5°C
Hence, the temperature T= 70+(-5)=65°C.
Therefore , from example we can say that when temperature decreases by some value in integer . Then ,we get final temperature obtained by adding drop in temperature ( negative integer ) in previous value of the temperature.
Which operation is NOT closed for polynomials?
A) (x3 + 8x − 5) (x4 + 6x + 2)
B) (x2 + 4x − 5)(8x2 + 3x − 6)
C) (6x2 + 2x − 3) + (x2 − 5x + 4)
D) −(2x2 + 2x − 5) − (x2 + 2x + 9)
Answer:
A
Step-by-step explanation:
You had a typo with A, and I think that is the answer as well, seeing as you typed all of your other answers correct, and none of them were labeled open by the first answerer, despite the typo.
The hypotenuse of a right triangle is 6 inches. if one of the legs is 2 inches, find the degree measure of each angle
Answer:
(square root) 30
Step-by-step explanation:
I don't know if that's right I'm taking this test right now it might be wrong sorry if its wrong lol
(ab - 9)(ab + 8) Please help
Please help with 2 questions thank you.
One gallon of paint usually covers about 350 square feet. How many square feet will 2.5 gallons cover? Show your work, including labeling your answer with the appropriate units of measure.
Unit rate is the quantity of an amount of something at a rate of one of another quantity.
If 1 gallon covers 350 square feet.
2.5 gallons will cover 875 square feet.
What is a unit rate?It is the quantity of an amount of something at a rate of one of another quantity.
Example:
A man can walk 8 miles in 2 hour
In one hour, the man can walk for 4 miles
We have,
One gallon covers 350 square feet.
This can be written as:
1 gallon = 350 square feet
Multiply both sides by 2.5.
2.5 x 1 gallon = 2.5 x 350 square feet
2.5 gallons = 875 square feet
Thus,
If 1 gallon covers 350 square feet.
2.5 gallons will cover 875 square feet.
Learn more about unit rates here:
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Which of the following are among the five basic postulates of Euclidean geometry?
Check all that apply.
A. All equilateral triangles are also equiangular.
B. A circle can be drawn with any center and radius.
C. Through a point not on a given line, there is exactly one line parallel to the given line.
D. All right angles are equal to one another.
Answer:
Choices B, C, and D are correct.
Step-by-step explanation:
Euclid's Five postulates are as follows:
1. A straight line segment may be drawn from any given point to any other.
2. A straight line may be extended to any finite length.
3. A circle can be drawn with any center and radius.
4. All right angles are congruent/equal to each other.
5. Through a point not on a given line, there is exactly one line parallel to the given line.
Now looking at these postulates and the choices we are given we see that only choice B, C, and D match with above.
From the options given, the statements that are among the five basic postulates of Euclidean Geometry are: B, C, and D.
The five basic postulates of Euclidean geometryThe five (5) basic postulates are:
Any straight line segment is drawn from any point to another.Any straight line can be drawn and extended to any finite length.Circles are drawn given a center and radius.Right angles are always congruent.If a given point is not on a given line, there exist a line that is parallel to the given line.Therefore, from the options given, the statements that are among the five basic postulates of Euclidean Geometry are: B, C, and D.
Learn more about Euclidean Geometry on:
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Three-fourths of an inch on a map equals 750 miles. what would one inch equal?
One inch on the map is equal to 1000 miles.
Explanation:To find what one inch would equal on the map, we can set up a proportion using the given information. We know that three-fourths of an inch on the map equals 750 miles. Therefore, the proportion would be: 3/4 inch = 750 miles. To find what one inch would equal, we can cross multiply and solve for the missing value:
3/4 inch * 1 inch = 750 miles * 1 inch
Simplifying, we get: 3/4 = 750 miles * 1 inch
Dividing both sides by 3/4, we get: 1 inch = (750 miles * 1 inch) / (3/4)
Simplifying further, we find that one inch on the map is equal to 1000 miles.
PLEASE HELP ASAP! BRAINLIEST TO BEST/RIGHT ANSWER
Please help ASAP! 16 points
HELP! Two lines intersect at a point, forming ∠1 , ∠2 , ∠3 , and ∠4 .
∠1 and ∠3 are vertical angles.
∠2 and ∠4 are vertical angles.
m∠1=70°
What is the measure of ∠2 ?
Which of the equations below shows the relationship in the table? [X] [15] [5] [3] [1] ------------------------------------------ [Y] [1] [3] [5] [15]] A. y = 15x B. y = x - 14 C. y = x + 2 D. y = 15 x
Find sec θ if θ is in Quadrant IV and sinθ=-1/5
Answer:
i got the answer 5(sqrt6)/12
sam decides to build a square garden if the area of the other garden is 9x^2 -24x +16 square feet what is the length of one side of the garden
How do you determine if two lines are perpendicular?
triangle abc is an isosceles right triangle. what is the measure of a base angle
Answer:
The measure of the base angle = 45°
Step-by-step explanation:
For better explanation of the solution see the attached figure of the diagram :
Given : An isosceles right triangle ABC
To find : Measure of the base angle
Solution :
Since, The triangle is right angle triangle.
⇒ m∠B = 90°
Also, ΔABC is an isosceles triangle
So, AB = BC
Now, Angles opposite to equal sides are equal
⇒ m∠A = m∠C
Now, Using Angles sum property of a triangle
⇒ m∠A + m∠B + m∠C = 180°
⇒ m∠C + 90° + m∠C = 180°
⇒ 2m∠C = 180° - 90°
⇒ 2m∠C = 90°
⇒ m∠C = 45°
Hence, The measure of the base angle = 45°
-21 - 7x = 8x + 24 How do you solve this?
Choose an equation for the relationship between the measures of the segments, angles, and arcs.
Which two equations would be most appropriately solved by using the zero product property?
Select EACH correct answer.
Which two equations would be most appropriately solved by using the quadratic formula?
Select EACH correct answer.
Answer:
1 - B and C
2 - B and C
Step-by-step explanation:
Ques 1: We know that,
Zero Product Property states that 'If ab=0, then either a=0 or b=0 or both are zero'.
So, from the options, we see that,
The equation [tex](x-3)(x+4)=0[/tex] can be solved using this property.
Also, the equation [tex]2x^2+6x=0[/tex] can be simplified to [tex]2x(x+3)=0[/tex].
So, this [tex]2x(x+3)=0[/tex] can also be solved by the given property.
Since, the other options cannot be factorized.
Hence, the correct options are B and C.Ques 2: We know that,
The quadratic formula is used to solve find the solution of the quadratic equation of the form [tex]ax^2+bx+c=0[/tex].
So, from the options, we see that,
The equations [tex](x-3)^2=36[/tex] and [tex](x+8)(x+9)=0[/tex] can be solved directly by using the 'Zero Product Property'.
The other equations cannot be solved directly and would be solved using the quadratic formula.
Hence, the correct options are B and C.Divide a six-sided polygon into triangles to find the sum of its interior angles.
A.360 degrees
B. 900 degrees
C. 1080 degrees.
D. 720 degrees
8.
A particular sound wave can be graphed using the function y = –3 sin x. Find the period of the function.
period = 2pi
period = –3
period = 3
period = 1/2
Melinda goes blowing on Saturday afternoon. She bowls three games nand pays for shoe rental. Define a variable and write an expression to represent the total cost Melinda pays. Then find the total cost if one game cost 4$
You have 20 shirts in your closet. 4 blue, 7 red, 3 green and 6 black. You pick one without looking. What is the probability that you pick a blue or black shirt?
Please help! How many ways can a cook arrange 7 or 10 spice jars on a spice rack?
A. 720
B. 604,800
C. 5,040
D. 120
I will fan and medal!!! PLEASE
A gray-scale digital camera with 1,000,000 pixels takes a picture (the picture is made of 1,000,000 parts and each part has a certain amount of gray). A histogram is made where the data is the amount of gray in each of these parts. The histogram looks bell-shaped with a mean of 125 gray levels and a standard deviation of 15.
How many pixels are brighter than 163 gray levels?
5000
10,000
160,000
50,000
To find the number of pixels brighter than 163 gray levels in a digital camera histogram, calculate the Z-score and use it to determine the percentage of values above that score, resulting in 160,000 pixels.
A gray-scale digital camera with 1,000,000 pixels has a histogram with a mean of 125 and standard deviation of 15 gray levels. To find the number of pixels brighter than 163 gray levels, first calculate the Z-score for 163: Z = (163 - 125) / 15. Then, use a Z-table or calculator to find the percentage of values above this Z-score, which corresponds to the number of pixels brighter than 163.
The answer to the question is 160,000 pixels brighter than 163 gray levels.
State whether the relationship between the variables in the table is a direct variation, an inverse variation, or neither. If it is a direct or inverse variation, write a function to model it.
x=3,9,13,20
y=9,27,39,60
I know it's direct but how do I write a function model to it?,
The variation is a direct variation, and the function to model it is y = 3x
From the table, we can see that:
The y values are calculated by multiplying the corresponding x values by 3
Take for instance;
When x = 3, y = 9
When x = 9, y = 27
Using the above pattern, the function to model the table is y = 3x
Read more about direct variations at:
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Answer:
B. Neither
Step-by-step explanation:
Which inequality represents the following sentence?
Twelve fewer than a number is at least 18.
12 + x ≤ 18
x – 12 ≥ 18 (This one correct?)
12 – x ≥ 18
x – 12 < 18,
Answer:
B) x - 12 ≥ 18.
Step-by-step explanation:
Given : Twelve fewer than a number is at least 18.
To find : Which inequality represents the following sentence?.
Solution : We have given
Twelve fewer than a number is at least 18.
Let the number be x .
According to question :
Twelve is less than a number x .
x - 12 ( negative sign used for fewer).
x - 12 ≥ 18.
Here we used greater than equal to sign because x- 12 is at least 18 mean is must be 18 or greater than 18.
Then equation become x - 12 ≥ 18.
Therefore, B) x - 12 ≥ 18.
A garage contains a combination of 20 bikes and tricycles. In total, there are 44 wheels. How many bikes and how many tricycles are in the garage.
The solution explains how to find the number of bikes and tricycles in a garage based on the total number of wheels and the given combination.
Explanation:The question: A garage contains a combination of 20 bikes and tricycles. There are a total of 44 wheels.
Step-by-step solution:
Let's denote the number of bikes as B and the number of tricycles as T.
Each bike has 2 wheels, so the total number of wheels contributed by the bikes is 2B.
Each tricycle has 3 wheels, so the total number of wheels contributed by the tricycles is 3T.
Given that the total number of wheels is 44, we can form the equation: 2B + 3T = 44.
Since there are 20 bikes and tricycles in total, we have the equation: B + T = 20.
Solving the system of equations, we find that there are 12 bikes and 8 tricycles in the garage.
What’s 100-((10x7)+(5x7-5)
Answer:
the answer 60
Step-by-step explanation:
First I did 10x7 which equals 70, Second I did 5x7 which equals 35 and then subtracted 5 to get 30, Third I did 100-70 to get 30 and than I did 30+30 to get 60.
Can someone please help me with this question?! (geometry)
Answer:
see below
Step-by-step explanation:
The arc length (s) can be found in terms of angle (θ) and radius (r) as ...
s = rθ
Dividing by r gives ...
s/r = θ
Since the angles are the same for the two circles, the ratios of interest are ...
[tex]\dfrac{s_1}{r_1}=\dfrac{s_2}{r_2}=\theta [/tex]
HELP PLEASE!!
Which is greater, the total volume of three spheres, each of which has a diameter 3 in., the volume of one sphere that has a diameter 8 in., or the volume of a hemisphere with a diameter of 9 in.?
a) The volume of three spheres, each with a diameter of 3 inches, is greater.
b) The volume of one sphere with a diameter of 8 inches is greater.
c) The volume of the hemisphere with a diameter of 9 in. is greater.
d) The two volumes are the same.,
Answer:
Step-by-step explanation:
Answer:
Here is my answers for the practice that I have come across. It may be the new one. I also shortened it.
1. find the SA of a grape fruit with a c of 14cm.
62 cm^2
2. a sphere has a volume of 900 ci. find SA
451
3. a solid metal cube with an edge length of 9 in is melted and reshaped into a sphere. which is SA of sphere
391.7
4. the sphere below fits snugly inside a cube with 6 in edges what is the v of the space between the sphere and the cube
102.9
5. find the v in terms of pi of a sphere with a SA of 9 pi square feet
9/2 pi ft^3
6. which of the following is the greatest the total v of 3 sphere each of which a diameter of 5 in the v of one sphere that has a diameter 8 in or the v of a hemisphere with a diameter of 10 in
the v of 1 sphere with a diameter of 8 in is greatest
7. a sphere has center 0 0 0 and a radius of 5
0 -3 4
8. find v of figure the diameter of the base is 4 cm
46/3 pi cm^3
9. a sphere with a radius of 5 cm fits inside a box every face is tangent to the sphere
6 pi
10. tennis balls are sold in packs of 3 and come packaged in a plastic cylindrical container there is no space between
69 square inches
Step-by-step explanation: