Answer:
c
Step-by-step explanation:
mass will never change only weight will as weight is dependent on gravitational field strength
Answer:
Its C
Step-by-step explanation:
my teacher said it right
9. Choose the correct solution and graph for the inequality.
Answer:
x ≤ -9
Step-by-step explanation:
x-3 ≤ -12
x ≤ -12+3 (Isolate x)
x ≤ -9
i need help with this question i dont know what to do or what its asking
What's the question???
Last month, there were 4 sunny days for every rainy day. If there were 30 days in the month, how many days were rainy? Explain your reasoning
Answer:
26 because 30-4=26
Step-by-step explanation:
Find the angle measures. Justify you responses.
Given: a//b, m<3= 63 degrees
Find: m<6, m<7
(The < is used as the angle sign)
Answer:
i think 89
Step-by-step explanation:
Answer:
m∠6 = 117º
m∠7 = 63º
Step-by-step explanation:
m∠3 = m∠7 = 63º(corresponding angles)
180º - m∠3 = m∠6 = 117º (same side interior angles are supplementary)
or
180º-m∠7 = m∠6 = 117º (linear pair)
Find the slope given the two points:
(3, 70) , (15, 90)
Answer:
x= 5/3
Step-by-step explanation:
You have given an equal sided triangle with side length a. A straight line connects the center
of the bottom side to the border of the triangle with an angle of α. Derive an expression for
the enclosed area A(α) with respect to the angle (see drawing
Answer:
Where α is an acute angle (first figure)
The area of the shaded triangle = ((√3)·a²/4)·sin(α)·csc(120 - α))
Where α is an obtuse angle (second figure)
The required area of the shaded region = (√3)·a²/4 + (√3)·a²/4)·sin(α)·sec(α + π/6)
Step-by-step explanation:
Where α is an acute angle (first figure)
The given parameters are;
The given triangle = Equilateral Triangle
Let the sides of the equilateral triangle = 2·a
Therefore;
The measure of each interior angles of the given triangle = 60°
Let c represent the side of the shaded triangle opposite ∠α and b represent the side of the shaded triangle opposite ∠60° and c, represent the third side of the shaded triangle, we have;
The sides of the equilateral triangle = 2·a
By sine rule, we have;
c/sin(α) = b/sin(60°) = a/sin(180 - (60 + α)) = a/sin(120 - α))
b = sin(60°) × a/sin(120 - α)) = (√3)/2 × a/sin(120 - α))
The area of the shaded triangle = 1/2 × a × b × sin(α) = 1/2 × a × (√3)/2 × a/sin(120 - α)) × sin(α) = ((√3)·a²/4)·sin(α)·csc(120 - α))
The area of the shaded triangle = ((√3)·a²/4)·sin(α)·csc(120 - α))
Where α is an obtuse angle (second figure)
The required area of the shaded region = The area of the equilateral triangle - The area of the small unshaded triangle, with base side a and interior angles, (180° - α), 60° and ((180 - (180° - α) - 60°) = ) α - 60°
The area of the unshaded triangle is found as follows;
By sine rule, we have;
c/sin(180° - α) = b/sin(60°) = a/sin(α - 60°)
b = sin(60°) × a/sin(α - 60°) = (√3)/2 × a/sin(α - 60°)
The area of the unshaded triangle = 1/2 × a × b × sin(α) = 1/2 × a × (√3)/2 × a/sin(α - 60°) × sin(α) = -((√3)·a²/4)·sin(α)·sec(α + π/6)
The area of the shaded triangle = -((√3)·a²/4)·sin(α)·sec(α + π/6)
The required area of the shaded region = 1/2×a²·sin(60°) - (-((√3)·a²/4)·sin(α)·sec(α + π/6))
The required area of the shaded region = (√3)·a²/4 + (√3)·a²/4)·sin(α)·sec(α + π/6)
negative 3 times x equals?
Answer:
-3x
Step-by-step explanation:
Answer:
Step-by-step explanation:
If we multiply any negative number in this case -3 times a POSITIVE we will always get a negative. So the positive we can put as x and multiply -3 times x = -3x.
Hope this helps :D
Keiko, Juan, and Tony have a total of $80 in their wallets. Keiko has $5 less than Tony. Juan has 3 times what Tony has. How much does each have?
Answer:
Keiko 12 + Juan 51 + Tony 17 = $80
Step-by-step explanation:
K + J + T = 80
K=T-5
J=3T
T=T
T-5 + 3T + T = 80
5T -5 = 80 --> 5T = 85 --> T = 17
now that u know T=17, substitute the value of T to find K and J
K=(17)-5 = $12
J=3(17) = $51
T= $17
g(x)=−x+5, solve for x when g(x)=-2
Step-by-step explanation:
a....................................
3/8 + 1/8 - 2/7 + 1/4
Answer:
0.46428571428
Step-by-step explanation:
Answer:
13/28Step-by-step explanation:
3/8 + 1/8 = 4/8 = 1/2 = 0.5
1/2 - 2/7 = 3/14 = 0.214285714286
3/14 + 1/4 = 13/28 = 0.464285714286
13/28 or 0.464285714286Hope this helps! <3
A right triangle is shown below. What is cos EFD?
Will make BRAINLIEST
I really don’t understand it.
Answer:
11.1803399
Step-by-step explanation:
By Pythagoras Theorem
[tex] \sqrt{hight {}^{2} + base {}^{2} } [/tex]
[tex] \sqrt{100 + 25} [/tex]
[tex] \sqrt{125} [/tex]
[tex] = = > 11.1803399[/tex]
Answer By,
Zeeshan Khan
The lenngths of the sides of the triangle are in the extended ratio 8:9:10. The primeter of the triangle is 108 cm.What are the lengths of the sides?
The lengths of the sides of the triangle in cm are____?
Please help me!!
Answer:
I dont know if anyone can answer kinda doesn't make sense
Please hurry. Thank you in advance
Answer:
The value of x in this equation is -23
Step-by-step explanation:
The given equation is:
[tex]-x-8 = 15[/tex]
The given equation is a linear equation in one variable. The solution of the equation requires isolating x on one side of the equation.
Properties of equality will be used to find the solution.
Using Addition property of equality
Adding 8 on both sides
[tex]-x-8+8 = 15+8\\-x = 23[/tex]
Multiplication property of equality
Multiplying both sides by -1
[tex]x = -23[/tex]
Verification:
[tex]-x-8 = 15\\-(-23)-8 = 15\\23-8 = 15\\15 = 15[/tex]
Hence,
The value of x in this equation is -23
Miguel is calculating the slope of a line of best-fit in the scatterplot below.
Which pair of points would be best for Miguel to use?
1. P and W
2. Q and V
3. R and U
4. S and T
Answer:
the answer is B.
Step-by-step explanation: i done the test have a nice day :))))
What is an equation in slope-intercept form of the line that passes through (6, 10) and is parallel to the graph of y=1/3x−1?
Given:
The equation of line is
[tex]y=\dfrac{1}{3}x-1[/tex]
To find:
The equation of line in slope-intercept form parallel to given line and passes through (6,10).
Solution:
The slope intercept form of a line is
[tex]y=mx+b[/tex] ...(i)
where, m is slope and b is y-intercept.
The equation of given line is
[tex]y=\dfrac{1}{3}x-1[/tex] ...(ii)
On comparing (i) and (ii), we get
[tex]m=\dfrac{1}{3}[/tex]
Slope of given line is [tex]\dfrac{1}{3}[/tex].
We know that slope of parallel lines are same. So, the slope of required line is [tex]\dfrac{1}{3}[/tex].
Since slope of required line is [tex]\dfrac{1}{3}[/tex] and it passes through (6,10), therefore the equation of line is
[tex]y-y_1=m(x-x_1)[/tex]
[tex]y-10=\dfrac{1}{3}(x-6)[/tex]
[tex]y-10=\dfrac{1}{3}(x)-\dfrac{1}{3}(6)[/tex]
[tex]y-10=\dfrac{1}{3}(x)-2[/tex]
Add 10 on both sides.
[tex]y-10+10=\dfrac{1}{3}(x)-2+10[/tex]
[tex]y=\dfrac{1}{3}(x)+8[/tex]
Therefore, the required equation of line is [tex]y=\dfrac{1}{3}(x)+8[/tex].
Does anyone else like online.... oooor is just me
Which fraction is equivalent to negative 1 over 6 ? (1 point) 6 over negative 1 negative 6 over 1 negative 6 over negative 1 1 over negative 6 I will give you the brainiest too
Answer:
1 over negative 6
Step-by-step explanation:
okay so first you said you had negative 1 over 6, this can be written as -1/6.
You then had -6/1 twice and finally you had 1 over negative 6, which can also be written as -1/6.
Ask questions if you are confused
Answer:
1 over negative 6
Step-by-step explanation:
okay so first you said you had negative 1 over 6, this can be written as -1/6.
You then had -6/1 twice and finally you had 1 over negative 6, which can also be written as -1/6.
n-7<15 then graph on number line
Answer:
n<22
Step-by-step explanation: That is the best i can do it
does anyone do savvas realize
Answer:
Yes, I do for my Spanish class!
Do you have any questions about it?
4. Two savings accounts each start with a $200 principal and have an interest rate of 5%. One account earns simple interest and the other is compounded annually. Which account will earn more interest over 10 years? How much more?
Answer:
The compounded annually account will earn more interest over 10 years
Step-by-step explanation:
The rule of the simple interest is I = Prt, where
P is the original valuer is the rate in decimalt is the timeThe rule of the compounded interest is A = P[tex](1+\frac{r}{n})^{nt}[/tex], where
A is the new valueP is the original valuer is the rate in decimaln is the number of periodst is the timeThe interest I = A - P
∵ Each account start with $200
∴ P = 200
∵ They have an interest rate of 5%
∴ r = 5% = 5 ÷ 100 = 0.05
∵ One account earns simple interest and the other is compounded
annually
∴ n = 1 ⇒ compounded annually
∵ The time is 10 years
∴ t = 10
→ Substitute these values in the two rules above
∵ I = 200(0.05)(10)
∴ I = 100
∴ The simple interest = $100
∵ I = A - P
∵ A = 200[tex](1+\frac{0.05}{1})^{1(10)}[/tex]
∴ A = 325.7789254
∵ I = 325.7789254 - 200
∴ I = 125.7789254
∴ The compounded interest = $125.7789254
∵ The simple interest is $100
∵ The compounded interest is $125.7789254
∵ $125.7789254 > $100
∴ The compounded annually account will earn more interest
over 10 years
(6)(-18)(5)= (-18)(6)(5)
What is the difference of the expression (1 + 4i) − (−16 + 9i)?
Answer:
Step-by-step explanation:
(1+4i)-(-16+9i)
1+4i+16-9i
17-5i
please solve!
y-2/5y
PLEASE ANSWER FAST !!
Answer:
Obviously condensation
Step-by-step explanation: because it is
Find the sum of 4.5 x 10^2 and 6 x 10^3 and show work please
Answer:
6.45 × 10³
Step-by-step explanation:
4.5 × 10² + 6 × 10³ = 0.45 × 10³ + 6 × 10³ = (0.45 + 6) × 10³ = 6.45 × 10³
Answer:
450 and 6000
Step-by-step explanation:
4.5 × 10²
4.5 × 100
450
6 × 10³
6 × 1000
6000
These two triangles are similar what is the length of t?
Answer:
I think 15
Step-by-step explanation:
You are taking part in a 10 km charity walk. It takes you 3.25 hours to complete the walk. What was your average walking speed, in km per hour? Round your answer to the nearest
Answer:
3.077 km/hr (though your question did not specify where to round to)
Step-by-step explanation:
10km/ 3.25 hr
‼️IM GIVING OUT BRAINLIEST ‼️
Elsa used the multiplication table below to write ratios that are equivalent to StartFraction 12 Over 4 EndFraction.
A multiplication table.
One number is missing from the equivalent ratio, as shown.
StartFraction blank Over 12 EndFraction
What is the missing number?
6
18
24
36
Answer: 24
Step-by-step explanation:
The table shows the mileages x (in thousands of miles) and the selling prices y (in thousands of dollars) of several used automobiles of the same year and model.
Mileage, x: 22 14 18 30 8 24
Price, y: 16 17 17 14 18 15
a.) Use a graphing calculator to find the equation of the line of best fit. Round the slope to the nearest tenth and y-intercept to the nearest integer.
y=
b.) Identify the correlation coefficient. Round to the nearest thousandth.
r=
Interpret the correlation coefficient.
the data show a ___ ___ correlation.
Answer:
ŷ = -0.18363X + 19.71681
-0.9685
Step-by-step explanation:
Given the data:
Mileage, x: 22 14 18 30 8 24
Price, y: 16 17 17 14 18 15
Using the online regression calculator :
The regression equation obtained is :
ŷ = -0.18363X + 19.71681
Where ;
y = predicted variable
- 0.18363 = slope or gradient
X = predictor variable
19.71681 = intercept
The correlation Coefficient R = -0.9685
This signifies a strong negative relationship between the x and y variable.
The line of best fit has an equation of:
y = -0.1875x + 19.625
A linear equation is given by:
y = mx + b;
where y, x are variables, m is the slope of the line and b is the y intercept.
Let x represent the mileages (in thousands of miles) and y the selling prices(in thousands of dollars) of used automobiles.
Plotting the points using geogebra graphing calculator, the line of best fit has an equation of:
y = -0.1875x + 19.625
Therefore the slope is -0.1875 and the y intercept is 19.625
Find out more at: https://brainly.com/question/11324911