Answer:
3
Step-by-step explanation:
To evaluate an expression with a particular value of the variable, put that value where the variable is and do the arithmetic.
__
1/3(-6) +5 = -2 +5 = 3
For x = -6, the value of the expression is 3.
If you flipped 2 coins, what is the probability that both will land on tails?
3/4
0/4
1/4
1/2
The probability of getting exactly two tail is 1/4.
If A'B' is 8 find the length of AB.
If angle B is 40 degrees what is the measurement of B'?
If angle A is 80 degrees what is the measurement of A'?
Using AA what is the measurement of angle C?
The length of AB when A'B' is 8 is 12
The measurement of B' when angle B is 40° is also 40°
The measurement of A' when A is 80° is also 80°
The measurement of C using AB is 60°
What are similar triangles?Similar triangles are triangles that have the same angles and the ratio of their corresponding sides are equal.
Analysis:
ΔCA'B' is similar to ΔCAB.
Which means [tex]\frac{A'B'}{AB}[/tex] = [tex]\frac{CB'}{CB}[/tex] = [tex]\frac{CA'}{CA}[/tex]
A'B' = 8, CA' = 4, CA = 6
[tex]\frac{8}{AB}[/tex] = [tex]\frac{4}{6}[/tex]
4AB = 8 X 6
AB = 48/4 = 12
Line BA nd B'A' are parallel lines joined by two transversals BC and CA.
So, ∠B = ∠B' = 40°( corresponding angles are equal)
Also, ∠A = ∠A' = 80° ( corresponding angles are equal)
∠A + ∠B +∠C = 180( sum of angles in a triangle)
80 + 40 + ∠C = 180
120 + ∠C = 180
∠C = 180 - 120 = 60°
In conclusion,
The length of AB when A'B' is 8 is 12
The measurement of B' when angle B is 40° is also 40°
The measurement of A' when A is 80° is also 80°
The measurement of C using AB is 60°.
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In a certain family, the probability of having twins in 0.08 and the probability of having a single baby is 0.92.
What is the probability of a family having two sets of twins?
Answer: SE = √. pA(1 - pA). nA. +. pB(1 - pB). nB. = √. 0.08(0.92). 200. +. 0.344(0.656). 200. = 0.039. (b) The sample sizes of 200 are large enough
Step-by-step explanation:
CHOOSE A MYSTERY FRACTION
THEN WRITE 3 TO 5 QLUES FOR
A CLASSMATE TO USE TO GUESS
YOUR FRACTION.
Answer:
Step-by-step explanation:
Guess My Mystery Fraction
1. My fraction has a denominator of 4*12
2. My fraction can be simplified to 5/8
3. My fraction has a numerator of 10*3
Please help u need help ASAP
Answer:
I Think its fed
Step-by-step explanation:
x = √2x-1
Simplify each equation. Make sure to check for extraneous solutions
x= V2 x-1
x-V2 x= -1
x+x = 1/V2
2x = 1/V2
x = 1/2V2
x = V2/4
A committee must be formed with 4 teachers and 7 students. If there are 9 teachers to choose from, and 8 students, how many different ways could the committee be made?
Find the length of BC.
BC is 14
DC and BC are equal
3y + 5 = 5y - 1
-3y
5 = 2y - 1
+1
6 = 2y
÷2
3 = y
y=3
Substitute y=3 into 5y-1, to find BC
5y-1
5x3 - 1
15 - 1
14
BC is 14
Hope this helps!
Answer:
Step-by-step explanation:
Let corner angle at C=α
tanα=12;BC=x;AC=xsecα
By a standard property of right angled triangles,
(xsecα)2=x(x+2)
simplify
x=BC=2tan2α=8.
The sketch is not proportionately drawn.Also
AB=4,AC=45–√
I need help with my homework
Answer:
y = 50x + 900
Step-by-step explanation:
I used the slope formula (y = mx + b). y represents the total money she earns each month
Find the distance between the pair of points.
(2, 0) and (-1, 1)
Step-by-step explanation:
given points (2,0) and (-1,1)
let A(2,0) and B(-1,1)
A(2,0) B( -1,1 )
(x1 , y1) (x2 , y2)
AB = √(x2 - x1)² + (y2 - y1)²
= √(-1 - 2)² + ( 1 - 0 )²
= √(-3)²+ 1²
= √9 + 1
= √10
Therefore,distance between given points is √10
Dan's car depreciates at a rate of 9% per year.
By what percentage has Dan's car depreciated after 4 years?
Give your answer to the nearest percent.
Answer:
about 31%
Step-by-step explanation:
[tex]1 - {.91}^{4} = 1 - .6857 = .3143 = 31\%[/tex]
a package of buttery round crackers contains 4 sleeves of crackers each package of crackers cost $2.49 A function, f(x) is written to represent the cost of purchasing x packages of crackers
What is the practical domain for the function f(x)?
.All positive integers
.All whole numbers
.All whole numbers that are multiples of 4
.All real numbers
The practical domain of function f(x) has all positive integers and all whole numbers that are multiples of 4 that is option A or D is correct
What is domain?The domain is "set of all possible inputs value for the function".
According to the question,
A package of buttery round crackers contains 4 sleeves of crackers each
package of crackers cost $2.49. A function f(x) written to represent the cost of purchasing x packages of crackers.
In order to find the practical domain for the function f(x) only if analysis the value of domain function 'x' must positive number so contain 'all positive integers' and since a package of buttery round crackers contains 4 sleeves then domain must contain 'all whole numbers that are multiples of 4'.
Hence, the practical domain of function f(x) has all positive integers and all whole numbers that are multiples of 4.
Learn more about domain here
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PLSS HELP ME WITH THIS !! 20 POINTSS
Answer:
Constant of Proportionality is k = y/x
Step-by-step explanation:
k = 0.5/1 = 0.5
Answer:
k = 0.5
Step-by-step explanation:
the constant of proportionality is the slope of the line
using the point (1, 0.5 ) , then
k = [tex]\frac{y}{x}[/tex] = [tex]\frac{0.5}{1}[/tex] = 0.5
A line passes through the point (-1, 8) and has a slope of 9. Can someone put that in slope intercept for
Step-by-step explanation:
[tex]y - y_1 = m.(x - x_1)[/tex]
[tex]y - 8 = 9.(x - ( - 1))[/tex]
[tex]y = 9x + 9 + 8[/tex]
[tex]y = 9x + 17[/tex]
A right triangle has a length of 30 and a side with a length of 18. A side with a length of 24 is opposite angle theta. What statement about the angle theta is true?
HELP QUICKLY PLEASE
Answer:
[tex]\text{A. }\cos \theta = \frac{3}{5}[/tex]
Step-by-step explanation:
See attached file for complete work.
Use what you know about translations of functions to analyze the graph of the function f(x) = (0.5)X-5 + 8
You may wish to graph it and its parent function, y = 0.5% on the same axes.
The parent function y = 0.5% is
า
across its domain because its base, b, is such that
DONE
The function, f shifts the parent function 8 units
DONE
The function, f shifts the parent function 5 units
DONE
Answer:
First box is: decreasing
Second box: 0< b< 1
Third box: Up
Fourth box: Right
Step-by-step explanation:
Please help me on this
Answer: Not gonna spoon feed but the ratio is -3
6 * -3 = -18
-18 * -3 = 54
u should be able to get t4, t5 and t6 now by urself
The points L, M, N and O all lie on the same line segment, in that order, such that the ratio of LM : MN : NO is equal to 3 : 1 : 5. If LO=36, find NO.
NO = ( )
Answer:
NO = 20
Step-by-step explanation:
If the pieces are in the ratio of 3:1:5 and the whole thing is 36, then set up an equation:
3x + 1x + 5x = 36
and solve, see image.
37/16 as a decimal rounded to the nearest tenth
Answer:
2.3
CAN I GET BRAINLIEST PLEASE
Step-by-step explanation:
Answer:
2.3.Step-by-step explanation:
We know that:
the fraction is 37/16What we DON'T know is:
the decimal of 37/16.Solve for the decimal:
37/16= 2.3 (Can't find my explanation).Answer is 2.3.
Help me plsssssssssssssssss
Answer:
h=12
Step-by-step explanation:
by cross multiplying we get 1h=12 or h=12 so h=12
What’s the area of the field and I need a step by step explanation. Thanks you and have a great day
A flag pole is 35 feet high. The sun shines a shadow of the flag pole to the ground. The shadow,
going out from the base of the flag pole is 12 feet long. What is the distance from the top of the
flag pole to the tip of the shadow?
Which steps could be part of the process in algebraically solving the system of equations, y + 5x = x² + 10 a
y = 4x -10? Select two options.
Oy=x² + 5x + 10
Oy + 5x = x² + 10 + 4x - 10
00=x²-9x
00=x²-9x + 20
One x-value of a solution to the system is 4.
Answer:
0 = x² - 9x + 20
4 is a solution for the system.
Step-by-step explanation:
y + 5x = x² + 10
y = 4x -10
Replacing the value of y in the first equation. This method is called sustitution.
(4x -10) + 5x = x² + 10
4x - 10 + 5x = x² + 10
4x + 5x - 10 = x² + 10 organizing.
9x - 10 = x² + 10 sum of similar terms.
0 = x² + 10 -9x + 10 organizing.
0 = x² - 9x + 10 + 10 organizing.
0 = x² - 9x + 20 sum of similar terms.
What happens if replace 4 in the equation.
0 = 4² - 9(4) + 20
0 = 16 - 36 + 20
0 = -20 + 20
0 = 0 I find that 4 is a solution for the system.
PLS HELP ASAP
Solve the following system of equations.
x + y = 3
2x + 2y = 6
A) (1.5, 1.5)
B) (0, 3)
C) infinite number of solutions
D) no solution
Answer:
C.
Step-by-step explanation:
x + y = 3
2x + 2y = 6
Multiply the first equation by 2:
2x + 2y = 6
This is the same equation as the second one.
So there are an infinite number of solutions.
wich one is a Line of Symmetry with a line going up and down called
a.Horizontal Line of Symmetry
b.Vertical Line of Symmetry
c.Diagonal Line of Symmetry
Your answer is B.
Vertical goes straight up and down.
Horizontal lines go side to side
A diagonal line is slanted.
8. Wilson cut open a packing box that
was shaped like a rectangular prism
to see the net. What shapes did
Wilson see?
A 1 triangle and 2 rectangles
B 1 square and 3 rectangles
c 6 rectangles only
D 6 triangles one
all sides of a rectangular prism would be rectangles.
Answer: c. 6 rectangles only
Which of the following is a unit fraction? 3/8 ,15/16 ,4/9,1/8
Answer:
its b
Step-by-step explanation:
ab equal 76 because 4
or Three baseball players are playing catch. Kenny is directly south of Ling and directly west of Sidney. Kenny and Sidney are 8 feet apart and Sidney and Ling are 10 feet apart. How far apart are Kenny and Ling?
Answer:18 feet
Step-by-step explanation:
It would be 18 feet because if you add 8 feet from how far him and Sidney are then 10 feet from how far Sidney and Ling are.
what percent of 7 is 3.5
Answer:
50%Step-by-step explanation:
what percent of 7 is 3.5
3.5 is half of 7, so 100%: 2 = 50%
Answer: 50%
I have shown two methods, both work well and can be used to solve other scenarios as well.
[Method One]
We will set up a proportion and solve.
-> A percent divided by 100 is a decimal. This means 100% = 1 in our proportion
[tex]\frac{1}{7} =\frac{x}{3.5}[/tex]
7x = 3.5
x = 0.5
0.5 * 100 = 50%
[Method Two]
We will put the whole value in the denominator, and the "what percent of" value is the numerator.
[tex]\displaystyle \frac{3.5}{7}[/tex]
0.5
0.5 * 100 = 50%
Suppose the figure above is translated 2 units left and 4 units up. The translated figure is then dilated with a scale factor of 3, centered at the origin. Which is the ordered pair for the image of C?