Answer:
Step-by-step explanation:
(-6,-5) , ( 0,-1) , (-3 , -3) , (2 , 0 ) are solution of the inequalities.
The point that lies on the purple area and on the solid line are the solutions of the equations.
Marking branliest!
What is the mean absolute deviation of the data in Table 3 (Number of Siblings)?
Answer:
To find the mean absolute deviation of the data, start by finding the mean of the data set. Find the sum of the data values, and divide the sum by the number of data values. Find the absolute value of the difference between each data value and the mean: |data value –
The mean absolute deviation of the number of siblings in the data given is: 1.33.
How to Find the Mean Absolute Deviation of a Data?Find the mean, the calculate the average of the difference of each data point and the mean.
Given the data:
0, 2, 4, 1, 3, 5, 0, 1, 1, 0, 3, 2, 4, 0, 1, 3, 2, 1, 6, 2, 1, 0, 1, 3
Mean = (0 + 2 + 4 + 1 + 3 + 5 + 0 + 1 + 1 + 0 + 3 + 2 + 4 + 0 + 1 + 3 + 2 + 1 + 6 + 2 + 1 + 0 + 1 + 3)/24 = 46/24
Mean = 1.9167
Mean absolute deviation = [(0 - 1.9167) + ( 2 - 1.9167) + ( 4 - 1.9167) + ( 1 - 1.9167) + ( 3 - 1.9167) + ( 5 - 1.9167) + ( 0 - 1.9167) + ( 1 - 1.9167) + ( 1 - 1.9167) + ( 0 - 1.9167) + ( 3 - 1.9167) + ( 2 - 1.9167) + ( 4 - 1.9167) + ( 0 - 1.9167) + ( 1 - 1.9167) + ( 3 - 1.9167) + ( 2 - 1.9167) + ( 1 - 1.9167) + ( 6 - 1.9167) + ( 2 - 1.9167) + ( 1 - 1.9167) + ( 0 - 1.9167) + ( 1 - 1.9167) + ( 3 - 1.9167)]/24
Mean absolute deviation = 32/24
Mean absolute deviation = 1.33
Learn more about the mean absolute deviation on:
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WILL GIVE BRAINLIEST AND THANKS. determine if these are tangent to the circle
Answer:
19 Five is not tangent to the circle.
20 Eight is tangent to the circle.
Step-by-step explanation:
In order for one of the legs to be a tangent to a circle, the length must be part of a right angle triple.
I don't think the diagram on the left is, but I'll check it.
5^2 + 12^2 =
25 + 144 =
169
square root of 169 is 13
The length of the hypotenuse should be 13 not 14. Fourteen does not make Pythagorean triple. 13 would. So the line 5 units long does not make a tangent to the given circle.
The diagram on the right is a different story. 6 8 and 10 do make a Pythagorean triple, even though the two diagrams are not the same.
The radius and the distance to the external point form a right angle.
The Pythagorean triple is
6^2 + 8^2 = 10^2
36 + 64 = 100
100 = 100
Select the true statement about Triangle ABC.
Answer:b
Step-by-step explanation:
Hey! can someone help me find the value of x please??!
Answer:
x = 13
Step-by-step explanation:
The triangles base angles are congruent, so the triangle is isosceles with the 2 legs being congruent, then
x = 13
Find the area of the sector. Use 3.14 for pl and round your
answer to the nearest tenth if necessary.
19 m
I am a teacher for all subjects so the answer is 201 m
Match each equation with the correct number of solutions
A direct proportion relationship is one in which quantities are always related to each other by the same ratio. true or false?
Answer:
True
Step-by-step explanation:
Example: (7,14) = (1,7)
8 of 8
Work out the mean for the data set
below:
2.3, 0.3, 7,6.1, 9.7
Give your answer as a decimal.
Answer:
Mean = 5.08
Step-by-step explanation:
The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count.
[tex] \frac{2.3 + 0.3 + 7 + 6.1 + 9.7}{5} [/tex]
[tex] = \frac{25.4}{5} [/tex]
= 5.08
Which of the following statements follows from (x - 3)2 = 5?
Ox2 + 9 = 5
Ox-3 = 15
OX-3 = +25
Answer:
Option B is correct
Select the two values of x that are roots of this equation
Answer:
c
Step-by-step explanation:
There are two answers to the question...
Answer:
B and C
The ages, in years, of employees at a fabric store are represented by the box-and-whisker plot shown.
Answer:
There isn't a plot.
Step-by-step explanation:
Tell whether the sequence is arithmetic. If it is, what is the common difference? -21, -15, -9, -3,
Answer:
it is arithmetic and the difference is 6
Does anyone know how to solve this?
Given :
A right angle triangle ABC .
To Find :
The perimeter of ABC .
Solution :
Since, triangle ABC is right angled and angle ∠ABC is 46° .
So, AC = AB cos 46° = 7.64 units.
Also, CB = AB sin 46° = 7.91 units.
Therefore, the perimeter of ΔABC is :
P = 11 + 7.64 + 7.91 units
P = 26.55 units
Hence, this is the required solution.
Factor completely 18x2 − 21x −15. 3(2x + 1)(3x − 5) 3(2x − 5)(3x + 1) 3(2x − 1)(3x + 5) 3(6x + 1)(x − 5)
Answer:
3(2x + 1)(3x - 5)
Step-by-step explanation:
Given
18x² - 21x - 15 ← factor out 3 from each term
= 3(6x² - 7x - 5 ) ← factor the quadratic
Consider the factors of the product of the x² term and the constant term which sum to give the coefficient of the x- term.
product = 6 × - 5 = - 30 and sum = - 7
The factors are + 3 and - 10
Use these factors to split the x- term
6x² + 3x - 10x - 5 ( factor the first/second and third/fourth terms )
3x(2x + 1) - 5(2x + 1) ← factor out (2x + 1) from each term
(2x + 1)(3x - 5)
Then
18x² - 21x - 15 = 3(2x + 1)(3x - 5)
Answer:
A
Step-by-step explanation:
Consider this equation
3x+ 1=2x-5
Answer: x=-6
Step-by-step explanation:
Add 5 to both sides to get 2x by itself
Yes, subtract 1 from both sides to get 3x by itself so you can subtract 2x as to not get a negative x value
One common mistake would be to accidentaly adding or subtracting 1 or 5 when they are supposed to be added/subtracted. To avoid this just go back and check your awnser by plugging it in.
Calculate the size of angle V on the square named FTLP.
18 cm
F
T
c
6
P
Given :
A square of side 18 cm.
To Find :
Angle V on the square.
Solution :
This problem can be done easily without using pen and paper but we need to know the property of diagonal of square given below :
The diagonals of the square bisect each other at 90°.
This will hold true for any right angle triangle.
Therefore, the angle V on the square is 90°.
A culture of bacteria living in a can doubles every minute. After 19 minutes the can is half- full. After how many minutes will the can be completely full?
Answer: after 19 more minutes.
Step-by-step explanation:
The question is asking how may more minutes until full, wich means the it needs 19 to be half full, it will need 19 more minutes to make it fully full.
But if it wants to know the total amount of minutes needed for the whole can to be full from zero min, than its 38 min.
Translate the sentence into an equation. Twice the difference of a number and 6 is 2.
Step-by-step explanation:
2(x-2)=6, x-2=3, x=5.......................
Roofing You are replacing the roof on the house shown, and you want to know the total area of the roof. The roof has a 1-1 pitch on both sides, which means that it slopes upward at a rate of 1 vertical unit for each 1 horizontal unit.
Answer:
See Explanation
Step-by-step explanation:
According to the Question,
Given That, Roofing You are replacing the roof on the house (Please Find Diagram in attachment), and you want to know the total area of the roof. The roof has a 1-1 pitch on both sides, which means that it slopes upward at a rate of 1 vertical unit for each 1 horizontal unit.1). find the value of x and y. (Please Find Diagram in the attachment)
⇒ Now, Because of the “1-1 pitch”, the triangle you see with x and y is an isosceles right triangle in Diagram, with hypotenuse 24.
⇒ That means x and y are equal (x=y) and using the 45° , 45° , 90° triangle ratio,
And, By Pythagoras Theorem We get
x² + x² = 24²
2x² = 576
x² = 288 ⇔ √288 ⇒ x=12√2 & y=12√2
2). Find the Total area of the roofing (Please Find Diagram in the attachment)
⇒ Now, The total area of the roof is the sum of the two isosceles right triangles on each side of the roof, plus the two rectangles.
⇒ Total Area = 2×{1/2× 12√2 × 12√2 × Sin90°} + 2×{35×12√2}
⇒ Total Area = 288 + 1187.93
⇒ Total Area = 1475.93 Unit²
Solve for X:
-7x + 15 > -20
Answer:
14
Step-by-step explanation:
because when you solve the equation you subract 15 from both sides and then divide -7 from the answer
Answer:
x < 5
Step-by-step explanation:
-7x + 15 > -20Step 1 :- Move constant to the right-hand side and change their sign.
-7x > -20 -15Step 2 :- Calculate the difference.
-7x > -35Step 3 :- Divide both side of the inequality by -7 and flip the inequality sign.
-7x / x < -35 / 7x < 5help me solve this question !
Answer:
The answer is
(x-5)(x+5)
Write an equation of the line that passes
through (0, – 5) and is perpendicular to
the line y= - 4/5x
Answer:
[tex]y = \frac{5}{4} x - 5[/tex]
A 9-pack of sponges costs $4.68. What is the unit price?
Answer:
You can do 4.68/9.
One pack of sponges costs $0.52 cents
Answer: $0.52
Step-by-step explanation: You divide 4.68 by 9 for the unit price
What is the slope of the line on the graph?
help quickly, please!
Answer:
x^2+22x+121
Step-by-step explanation:
(x)^2+2*x*11+11^2
=x^22x+121
Solve the equation for X. Show all work.
6(-3x - 4) = - 18x + 24
WILL GIVE BRAINLIEST‼️
PLEASE SHOW WORK:)
Answer:
(6x + 5)(x + 2)
Step-by-step explanation:
x coefficients must multiply to 6
so 6 * 1 or 2*3
10 must be 5*2 or 1* 10
(6x + 5)(x + 2) = (6x² + 12x + 5x + 10) = 6x² + 17x + 10
PLEASE HELP ME WHAT IS THE ANWSER
Answer:
c is the same angle as a
b and d are the same as the other
and together the are what's left from 360° after a and c got their share
so
360 -98 -98 = b + d
makes
164 = b + d
since they are of equal value, just decide 164 by 2 and you got b and d at once
pls brainliest
Answer:
Vertical Angles: a and c , d and b
m<b= 82⁰ , m<c=98⁰ , m<d=82⁰
Adjacent Angles: a and b , b and c , c and d ,d and a
correct me if im wrong
what are the answer to this question
Answer: t=-3h+25
Step-by-step explanation:
t=-3h+25
25 degrees is a constant-- it never changes, no matter how many hours goes by. So, you don't multiply a variable with it.
The temperature drops every 3 hours-- this is not constant, since it's dependent on the number of hours that passes. So, use a variable here. Since the temperature drops every three hours, it's -3, and not 3.
Answer:
[tex]t=-3h+25[/tex]
Step-by-step explanation:
If we know that when [tex]h=0[/tex], [tex]t=25[/tex], then we can use a direct proportion equation ([tex]x=ky[/tex]). The temperature decreases every hour by 3 degrees. However, we know that before any temperature drop, the temperature was 25 degrees. All together, this gives us [tex]t=-3h+25[/tex], where [tex]-3h[/tex] is the temperature drop each hour, and [tex]25[/tex] is the starting temperature. Hope that explained things :)
Can someone help me with this math problem ?? Pls it’s for my final !
-
A 525ft cable runs from the top of an antena to the ground. The angle of elevation made by the ground to the top of an antena 25°
How tall is the antena ??
Answer:
221.87 feet
Step-by-step explanation:
Given that,
A 525 ft cable runs from the top of an antenna to the ground.
The angle of elevation made by the ground to the top of an antena 25°
We need to find the height of the antenna.
Using trigonometry,
Hypotenuse, H = 525 ft
θ = 25°
So,
[tex]\sin\theta=\dfrac{P}{H}\\\\P=H\sin\theta\\\\P=525\times \sin(25)\\\\P=221.87\ ft[/tex]
So, the height of the antenna is equal to 221.87 feet.
