Answer:OK Lets get one thing straight Not all 2 × 2 matrices have an inverse matrix. If the determinant of the matrix is zero, then it will not have an inverse; the matrix is then said to be singular. Only non-singular matrices have inverses.To find the inverse of a 2x2 matrix: swap the positions of a and d, put negatives in front of b and c, and divide everything by the determinant (ad-bc).
hope this helps have a nice night ❤️
Step-by-step explanation:
help me plz branniest to whoever right
25 points pls help me
Answer:
y = 45 / 2x + 50
Step-by-step explanation:
The best equation for the line of the best fit would be y = 45 / 2x + 50.
The slope would be 45 / 2 and the y-intercept would be ( 0 , 50 ).
I used the points, ( 0 , 50 ) and ( 4 , 140 ) to get the equation, slope, and the y-intercept.
I used those points because they were the most accurate ones that I know for now.
Also, remember the formula is, "y = mx + b."
Which statement about this figure is true?
Answer:
there is no attached image
Step-by-step explanation:
Answer:
no picture
Step-by-step explanation:
Please do this for brainlest and extra points!!! Pleaseee IT IS DUE
Answer:
Step-by-step explanation:
1) 3
2) 15
3) 4
4) 27
5) 28
6) 18
7) 17 2/3
Which is the equation of the line that passes through the point (-5, -2)
and has a slope of 3?
(F) y = 3x + 13
G. y = 3x + 1
H. y = 3x - 2
J. y = 3x - 15
Answer:
F) y=3x+13
Step-by-step explanation:
y-y1=m(x-x1)
y-(-2)=3(x-(-5))
y+2=3(x+5)
y=3x+15-2
y=3x+13
The rectangular floor of a classroom is 40 feet in length and 32 feet in width. A scale
drawing of the floor has a length of 10 inches. What is the perimeter, in inches, of the
floor in the scale drawing?
The perimeter of the floor in the scale drawing is 36 inches.
What is the area of the rectangle?
To find the area of a rectangle, we multiply the length of the rectangle by the width of the rectangle.
The scale of the drawing is 10 inches for 40 feet, which means that every inch in the drawing represents 4 feet in reality.
To find the perimeter of the floor in the scale drawing, we can add up the length of each side in the drawing, where every inch represents 4 feet.
The length of the floor is 40 feet, which is equal to 10 inches in the scale drawing (40/4=10). So, the length of the scale drawing is 10 inches.
The width of the floor is 32 feet, which is equal to 8 inches in the scale drawing (32/4=8). So, the width of the scale drawing is 8 inches.
Therefore, the perimeter of the floor in the scale drawing is:
P = 2(length + width)
= 2(10 + 8)
= 2(18)
= 36 inches
hence, the perimeter of the floor in the scale drawing is 36 inches.
To learn more about the area of the rectangle visit:
brainly.com/question/2607596
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Is this correct? Please answer
Answer:
Yes it is correct (need more letters)
Answer:
yes it is correct needs more letters
10. Determine if the triangle is a right triangle. Please help
Answer:
it is a right triangle
Step-by-step explanation:
Answer:
No, it's not a right triangle
Step-by-step explanation:
Use a^2 + b^2 = c^3 to find if it's a right triangle
a^2 + b^2 = c^3
(13)^2 + ([tex]\sqrt{29}[/tex] )^2 = (14)^2
169 + 29 = 196
198 [tex]\neq[/tex] 196
What is the PERIMETER of a square with side length 3 cm? The perimeter is solved by adding the length of all 4 sides together.
Answer:
18
Step-by-step explanation:
Answer:
12
Step-by-step explanation:
To find perimeter of a square you do 4L which is 4× the length so that's 12
9. Elsie has 5 jumbo freezies, to share with the 13 players on her soccer
team. She cuts each freezie into thirds. Does Elsie have enough freezie
pieces for everyone on her team?
Answer:
Yes
Step-by-step explanation:
5 cut into 3 pieces each = 15 pieces
each of the 13 players could have a piece with 2 left over.
Solve for h
h – 5 = -30
Make sure to show your work for full points!
Question 7 options:
HELP ME ASAP PLEASE
Answer:
H=-30+5
H=-25
Pls mark as brainliest
Please I need help please
Answer:
18840
Step-by-step explanation:
The formula for a cone is r^2·h·3.14/3
R=20
H=45
Plug in the numbers and multiply and divide to get 18840
A bus covers a distance of 2.45 km in 2 min. What is the speed of bus?
Answer:
The speed of the bus is 74.242 kilometers per hour.
Step-by-step explanation:
Let suppose that bus runs at constant speed and that speed is measured in kilometers per hour. Then, the speed of the bus ([tex]v[/tex]), in kiometers per hour, is determined by following kinematic expression:
[tex]v = \frac{s}{t}[/tex] (1)
Where:
[tex]s[/tex] - Travelled distance, in kilometers.
[tex]t[/tex] - Time, in hours.
If we know that [tex]s = 2.45\,km[/tex] and [tex]t = 0.033\,h[/tex], then the speed of the bus is:
[tex]v = \frac{s}{t}[/tex]
[tex]v = 74.242\,\frac{km}{h}[/tex]
The speed of the bus is 74.242 kilometers per hour.
I will give BRAINLIEST!!
21 cm
Find the circumference. Round your answer to the nearest hundredth. Use 3.14 for
Enter the correct answer in the box.
Answer:
132 cm
I hope this helped!
I don’t understand this question someone please help
Answer:
£152.40
Step-by-step explanation:
If he made 80 cakes at a ratio of 3:2:5, then he made:
24 chocolate cakes
16 lemon cake
40 fruit cakes
He sold all of the chocolate: 24x2=48
He sold 3/4 of the lemon: 3/4 of 16=12 12x1.70=20.40
He sold 7/8 of the fruit cakes: 7/8 of 40=35 35x2.4=84
48+20.40+84=152.40
9. What is the volume for the cone shown above, to the nearest cubic centimetre?
A.343 em
B.1039 cm
C.132 cm
D.1115 cm
Answer:
B .
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WHAT IS 5,350 DIVIDED BY NOTHING =5.35
Answer:
x = 1000
Step-by-step explanation:
5,350 ÷ x = 5.35
To find this you should divide 5,350 by 5.35.
5,350 ÷ 5.35 = 1000
x = 1000
Answer:
5.35
Step-by-step explanation:
Divide 5,350 by 5.35
[tex]5350 \div 5.35[/tex]
you'll get 1000
Check your answer by dividing 5350 by 1000
[tex]5350 \div 1000 = 5.35[/tex]
Seahorses can swim about 1/2 mile per hr. If a seahorse needs to go 6 mi, how long will it take?
Answer:
12 hours
Step-by-step explanation:
to find the answer to this one you divide 6 by 1/2
6/1/2=12
it takes 12 hours for the sea horse to travel 6 miles
hope this helps :D
Roberto cut 12 meters of string into 4 equal sized pieces. How long is each piece of string in centimeters?
Answer:
300
Step-by-step explanation:
Divide 12 and 4.
12/4 = 3
Each piece is 3 meters long.
To convert meters to centimeters you have to multiply 3 by 100.
100 x 3 = 300.
just answer plz its 20 points
Answer:
x=14.5
Step-by-step explanation:
since we know the sum of a triangles interior angles equal 180, we can subtract 66 from 180
180-66=114
6x-8+2x+6=114 - combine like terms
8x-2=114 - add 2 to both sides
8x=116 - divide by 8
x=14.5
angle a= 79
angle n=35
What is the area of the shaded portion in square?
Answer:
8 -2 π square units
Step-by-step explanation:
Hi, I hope this helps; I apologize for answering late. I just now completed this lesson, myself! I assure you its right.
Solve by substitution method y = 3x+2 5x - 3y =18
Answer:
It would be:
(-6,-16)
Step-by-step explanation:
x=-6, y=-16
Solve for the first variable in one of the equations, then substitute the result into the other equation.
Use the Distributive Property to rewrite each algebraic expression, 3(x + 1). (GIVING BRAINLIEST)
Answer:
Step-by-step explanation:
3(x+1) = 3·x + 3·1 = 3x + 3
Answer:
3x + 1
Step-by-step Explanation:
Just multiply or distribute 3 (outer number) to each set of the inner terms in the parenthesis which are x and 1.
what is the answer to 1/4 + 8 * 8 + 6 + 8
Prompt:
What does it mean to multiply polynomials?
Explain how to multiply (x + 2) (X - 4) as if you're teaching a student a year
younger than you.
Please help asap 9th grade stuff
Answer:
x power2+6x+4 is the answer
Question 10 (5 points)
(06.05 LC)
The two-way table shows the number of students in a class who like mathematics
and/or science.
Do Not Like
Mathematics
Like
Mathematics
Total
Like
Science
18
?
38
Do Not
Like
Science
16
6
32
Total
34
26
70
What is the missing number in the table? (5 points)
1. 10, 2. 12, 3. 20, 4. 56
Answer:
the answer is 20 i just took the test
Step-by-step explanation:
Answer:
The answer is 20, cus 20 plus 6 + 26 on the chart and 38-18=20 on the chart as well :)
Step-by-step explanation:
If the first two terms of a geometric sequence are 16 and 24, which of the following is the value of the fourth term?
a. 32
b. 36
c. 40
d. 54
Answer:
D. 54
Step-by-step explanation:
Remember that for geometric series, it's a progression by multiplication. From the first term, you multiply by your common ratio to get each successive term.
[tex]a_{n}[/tex] = [tex]ar^{n-1}[/tex]
In which [tex]a_{n}[/tex] is the nth term in a sequence.
A is the first term.
And R is the common ratio.
The common ratio is 1.5. Which was found by dividing 24 by 16.
Our equation would now be : [tex]16*1.5^{n-1}[/tex]
By replacing n with 4, you will get 54.
Or, if we multiply each term by 1.5, you will end up with 54 by the time you reach the fourth term.
Hope this helps mate.
Equation practice with vertical angles
Answer:
x = 7
Step-by-step explanation:
Vertical angles are congruent (equal). Therefore, we can set the values equal to each other in an equation to solve for x.
7x + 68 = 2x + 103
5x + 68 = 103
5x = 35
x = 7
a student eats 7 servings of vegetables and 4 servings of fruits one day. Which statement is true
A. The ratio of fruits and vegetables the student eats 7 to 4.
B. The ratio of fruits to vegetables the student eats that day is 7 to 11
C. The ratio of vegetables to fruit the student eats that day is 4 to 7.
D. The ratio of vegetables to total fruits and vegetables the student eats that day is 7 to 11.
Answer:
A
Step-by-step explanation:
I think
I hope
Welp
Have a cookie
please help me i really need help please
Answer:
39°
Step-by-step explanation:
IM assuming xyz is a triangle
180 - 113 - 28 = 67 - 28 = 39