Answer:
9
Step-by-step explanation:
when 2 negative signs meet or be multiplied the sign became "+" instead of "- -".
b. Betelgeuse
d. Sirius
2. Which star has a surface temperature most similar to the surface temperature of Alpha Centauri?
a Polaris
c. Procyon B
b. Betelgeuse
d. Sirius
Help me plz
Answer:
I think A..............
The temperature of the radiating layers of a star at which its continuous spectrum is produced is known as surface temperature of star.
Polaris star has a surface temperature most similar to the surface temperature of Alpha Centauri.Betelgeuse and Proxima Centauri have the same surface temperature .Sun has highest luminosity.Blue Giants type of star has a high temperature and a high luminosity.Learn more:
https://brainly.com/question/17717852
A lever is used to lift a load by applying an effort of 200 N. If load is 2o cm and effort is 80 cm far from the fulcrum, find the amount of load.
Find the sum of (x + 5),(-4x - 2) and (2x - 1)
Answer:
-x + 2
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Combining Like TermsStep-by-step explanation:
Step 1: Define
(x + 5) + (-4x - 2) + (2x - 1)
Step 2: Simplify
Combine like terms (x): -x + 5 - 2 - 1Combine like terms (Z): -x + 2The summit of Mount Mauna Kea is approximately 13,796 ft above sea level. What is the distance from the summit to the horizon, rounded to the nearest mile
Answer:
About 145 miles.
Explanation:
Assume that the distance from the center of the earth to any point on the earth's surface is 4,000 miles.
Step-by-step explanation:
r
=
4000
v
=
13796
5280
(divide by 5280 to convert to miles)
Using Pythagorean's Theorem:
a
2
+
b
2
=
c
2
a
2
+
4000
2
=
(
4000
+
13796
5280
)
2
a
2
=
(
4000
+
13796
5280
)
2
−
4000
2
a
=
√
(
4000
+
13796
5280
)
2
−
4000
2
≈
144.6
Answer:
About 145 miles.
Explanation:
Assume that the distance from the center of the earth to any point on the earth's surface is 4,000 miles.
Step-by-step explanation:
r = 4000
v = 13796/5280
(divide by 5280 to convert to miles)
Using Pythagorean's Theorem:
a^2 + b^2 = c^2
a^2 + 4000^2 = (4000 + 13796 /5280)^2
a^2 = (4000 + 13796 /5280)^2 − 4000^2
a = √(4000 + 13796 /5280)^2 − 4000^2 ≈ 144.6
This is just a shrunk down version so it is easier to read. All credit goes to the other answer.
73.9 meters is equal to
kilometers
Answer:
0.0739 kilometers is the answer
Answer: meter = 73.9 ⇌ kilometer = 0.0739
Step-by-step explanation:
73.9 meters = 0.0739 kilometer
Formula: divide the value in meters by 1000 because 1 kilometer equals 1000 meters.
So, 73.9 meters = 73.9/1000 = 0.0739 kilometer.
Hope that help you out :)
What is the outlier of 29, 2, 28, 30, 26, 31
Answer:
2
Step-by-step explanation:
Given the data : 29, 2, 28, 30, 26, 31
Outlier ;
Lower :Q1 - (1.5 * IQR)
Upper : Q3 + (1.5 * IQR)
Q1 = Lower quartile ; Q3 = upper quartile ; IQR = Interquartile range
Using calculator :
Q1 = 26
Q3 = 30
IQR = (Q3 - Q1) = 30 - 26 = 4
Lower : 26 - (1.5 * 4) = 20
Upper : 30 + (1.5 * 4) = 36
Hence, the number in the given data which falls outside the range is 2
Find the difference.
8 - 4 = 1
Eight minus four equals four!
Answer:
8 - 4 =4
Step-by-step explanation:
Can someone help me with this please???
Describe in words what you will do to solve this. You do not need to solve. -3x = 12
Answer:
First solve I will divide both sides by the coeeficient (the number attached to the vairable) -3. then I will have my answer of x = -4
Step-by-step explanation:
2 (29+1.5) = 18-9
Can you answer this step by step please.
Answer:61=9
Step-by-step explanation:
2(29+1.5)=18-92(29+1.5)29+1.5=30.52*30.5=6118-9=961=9Louis is constructing the perpendicular bisector
of GH . He has already constructed an arc as
shown.
What should Louis do for his next step?
Solution :
It is given that Louis is constructing a perpendicular bisector of a line GH.
Let the line GH be x units of length.
Louis is constructing a perpendicular bisector. So he should follow the following steps :
1. Louis should take the help of a compass and place the needle of the compass on one end of the line and take a measurement that is equal to the more than half the length of the line GH.
2. Then keeping the compass needle at one end of he line, Louis have to draw an arc above and below the line GH.
3. Now with the same measurement in the compass, place the compass needle on the other end and similarly cut two arcs above and below intersecting the previous arcs.
4. Now join the intersecting point with a straight line.
5. This is the perpendicular bisector of the given line GH.
need help :)........
The point (2,1) is rotated 90 degrees clockwise using center (0,0). What are the coodinates of the image?
Answer:
(1,-2)
Step-by-step explanation:
Rotation of Figures
When we rotate a figure 90 degrees clockwise across the origin, each point of the given figure has to be changed from (x, y) to (y, -x).
We are given the point (2,1) and it is rotated 90 degrees clockwise across the origin, thus the image has coordinates (1,-2).
The figure below shows the point and its image.
Marta tried solve the system below, but she made a mistake. Read carefully and try to figure out what her mistake was.
Finding Mistakes in a Solution
What was Marta’s mistake? Explain.
Answer:
Marta solved for y in the first equation and then substituted it back into that equation instead of the other one!
Step-by-step explanation:
edge 2020/2021
The mistake Marta did was substituting the value of a variable from equation 1 into same equation itself.
What is System of Equation?The system of equation is set of equations which have a common solution.
Marta was trying to solve the following equations:
10x+y = 22
2x+y =-2
For using the substitution method , the value of a variable is taken in terms of another variable from equation 1 and substituted in equation 2
y = 22 -10x will be substituted in equation 2
2x + (22-10x) = -2
2x +22 -10x = -2
-8x = -24
x = 3
y = -8
The system of equation has finite solution of x = 3, y =-8.
The missing equations are attached with the answer.
To know more about System of Equations
https://brainly.com/question/12895249
#SPJ5
Given the line q and r are parallel lines and m <3=123 find other angle measure
.............................. us to be a good day at work and I don't know what to do it again and again and again and again and again and again and again and again
On earth day 40 people volunteer to work at the city park cleanup. 10 of the 40 volunteers are high-school students. The coordinator wants to know what percent of the volunteers are in high school
Answer:
10/40
10/40=1/4
Percent= 25%
Step-by-step explanation:
Answer please thanks
Answer:
(2A /h) - b1 = b2
Step-by-step explanation:
A = 1/2 h ( b1 + b2)
Multiply each side by 2
2A = 2*1/2 h ( b1 + b2)
2A = h ( b1 + b2)
Divide each side by h
2A/h= h/h ( b1 + b2)
2A/h= b1 + b2
Subtract b1 from each side
2A /h - b1 = b2
Eric rented a truck for one day the base fee was 16.95 for additional charge of .76 cents for each mile driven eric had to pay 152.23 when he returned the truck how many miles did he drive
Answer:
178 miles
Step-by-step explanation:
Let Eric has driven d miles.
As the rate of charge of driving the truck = 76 cents /mile
So, the charge of driving the truck for d miles = 76d cents= $0.76d
The base fee of the truck was $16.95.
Total money paid at the time of returning the truck = $152.23
So, 16.95+0.76d=152.23
0.76d= 152.23-16.95=135.28
d=135.28/0.76
d=178
Hence, he drives 178 miles.
Solve the system of linear equations by substitution x-y=2 x+2y=5
Answer:
x = 3
y = 1
Step-by-step explanation:
x - y = 2 ---------------(I)
x + 2y= 5 ----------------(II)
x - y = 2
x = 2 + y _________(III)
Substitute x = 2 + y in equation (II)
2 + y + 2y = 5 {combine like terms}
2 + 3y = 5
3y = 5 -2
3y = 3
y = 3/3
y = 1
Substitute y = 1 in equation (III)
x = 2 + 1
x = 3
Select the correct locations on the graph.
Select the lines that represent functions.
All the lines given represent functions except the vertical line given which is attached below.
What is a Function?In a function, every x-values has only one possible y-value. Two x-values can have the same y-value but one x-value cannot have two different y-values. That is why a vertical line graph cannot in anyway represent a function.
An horizontal line graph is a constant function graph. Thus, all the lines represent functions except the vertical line that is attached below.
Learn more about functions on:
https://brainly.com/question/10439235
#SPJ1
Answer:
the diagonal line is a function and the line going from left to right is a function :)
Step-by-step explanation:
Please help! giving all the points I have!!! will give brainliest!!
Answer:
d because i took the test
Step-by-step explanation:
pls help if I don’t finish today mom will hurt me
Answer:
We conclude that:
g(10) = 8Step-by-step explanation:
First, we need to clear some concepts on how to fetch input and output from the function graph.
Determining the y-intercept:
We know that the y-intercept of the graph function can be determined by setting x = 0 and determining the corresponding y-value.
From the graph it is clear that x = 0, the value of y = 5. In other words, the graph intersects the y-axis at y = 5.
Therefore, the y-intercept of the graph is (0, 5).
Thus,
g(0) = 5Determining the x-intercept:
We know that the x-intercept of the graph function can be determined by setting y = 0 and determining the corresponding x-value.
From the graph, it is clear that y = 0, the value of x = -10. In other words, the graph intersects the x-axis at x = -10.
Therefore, the x-intercept of the graph is (-10, 0).
Thus,
g(-10) = 0Determining g(10):
From the graph, it is clearly visible that at x = 10, the value of the function output y = 8.
In other words,
at x = 10, g(10) = 8
Therefore, we conclude that:
g(10) = 8The number 100 has factors 2 and 50, since 2 times 50 = 100. List all the other factor pairs of 100.
Answer:
25 and 4
10 and 10
100 and 1
20 and 5
What is (1/4x−7)−(3/4x−5) ? Explain how you found your answer.
Answer:
2
Step-by-step explanation:
In Algebra you learned that Difference of Perfect Squares is x^2 - 25 = (x+5)(x-5)
Is there a way to factor the sum of perfect squares? ex: x^2 + 25 = (?)(?)
Answer:
(x+5i)(x-5i)
Step-by-step explanation:
We use imaginary numbers to solve that. since i = sqare root of -1 so i * i = -1.
You buy 5 balloons and 3 banners for $14. Your friend buys 1 balloon and
1 banner for $4. How much does each item cost?
Answer:
4 DLLS
Step-by-step explanation:
(3 · x ) · 7
what is the simplified answer to this question?
Answer:
21x
Step-by-step explanation:
In the parentheses, 3 * x is the same thing as 3x. Distribute 7 into 3x to get 21x as your final answer.
Answer:
21x would be the answer
The graph of a parabola has an axis of symmetry of and an intercept at . It passes through the point . What is the equation representing this parabola?
Answer:
The answer is B! All I did was take a screenshot of your question and put on my page.
can someone help me pls, I’ll give you points
Answer:
c :) brainliest?
Step-by-step explanation:
Answer:
-6 < -2
Step-by-step explanation
1/6x + 3/2 slope of line
Answer: m=1/6
Step-by-step explanation:
Coding Problem
Research department eight employees budget of $11,500 department
Answer:
d. 80:8:3
Step-by-step explanation:
The question
For each $ 200 spent by the research department, sales department spends $ 20.For every $ 400 spent by the sales department the advertising department spends $ 150. The triple ratio of the money spent by the research department to the money spent by the sales department to the money spent by the advertising department fan be expressed as 2:1:5 b. 20:4:1 c. 40:8:3 d. 80:8:3
Research department : Sales Deptt: Advert Deptt
$ 200 : $ 20
$4000 : $ 400 : $150
( multiplying 400 with 10 to get the research department proportion)
400 : 40 :15 (dividng by 10)
80 : 8 : 3 ( dividing by 5)
Here we see that the ratio between the research department and the sales department is 10 :1 ( 200: 20)
Keeping the same ratio for the proportion given 400: 150 the $ 400 is multiplied with 10 to get the proportion of the research department.
Then we obtain 4000: 400: 150 which is reduced first by dividing with 10 and then 5 .