A circle has a radius of 4in what is the area of the circle?
Answer:
A≈50.27in²Step-by-step explanation:
A=πr2=π·42≈50.26548in²
I hope it's help
Answer:
50.24
Step-by-step explanation: 1
C = 4 inches
4 in x 2 = 8
8 x 3.14 = 25.12
Step-by-step explanation: 2
C = 2 x 8 = 16
16 x 3.14 = 50.24
~Hope this helps!
~Hocus Pocus
Which of the following statements are true about inverse matrices?
All square matrices have inverses.
If A and B are inverse matrices, then A and B must be square matrices.
The determinant of a singular matrix is equal to zero.
If A and B are inverse matrices, then A + B = I.
If A and B are inverse matrices, then det(A)xde(B)=0
Any zero matrix does not have an inverse.
If B = A–1, then A = B–1.
B = A–1, then A = B–1. This statement is true. The inverse of a matrix is unique, so if B is the inverse of A, then A must be the inverse of B.
what is matrix ?An arrangement of integers in both columns and rows is known as a matrix. learns about matrices' components and dimensions and first presents them. A matrix is a rectangular grid with integers arranged in rows and columns.
The statements that are true about inverse matrices are:
Not all square matrices have inverses. A square matrix only has an inverse if its determinant is not equal to zero. If the determinant of a square matrix is zero, it is called a singular matrix and does not have an inverse.
If A and B are inverse matrices, then A and B must be square matrices. This is because only square matrices can have inverses.
The determinant of a singular matrix is equal to zero. This is because the determinant of a matrix is related to the linear independence of its columns or rows. A singular matrix has linearly dependent columns or rows, which means its determinant is zero.
If A and B are inverse matrices, then A + B = I. This is not necessarily true. In general, the sum of two inverse matrices is not necessarily the identity matrix.
If A and B are inverse matrices, then det(A) x det(B) = 1. This statement is almost true, but the correct statement is det(A) x det(B) = det(AB) = 1.
Any zero matrix does not have an inverse. This is because the determinant of a zero matrix is zero, and therefore it is singular and does not have an inverse.
If B = A–1, then A = B–1. This statement is true. The inverse of a matrix is unique, so if B is the inverse of A, then A must be the inverse of B.
To know more about matrix visit:
https://brainly.com/question/29995229
#SPJ1
Answer: B,C,E,F,G
Step-by-step explanation:
Adult tickets for the school musical are sold for $3.50 and student tickets are sold for $2.50 on a given night 425 tickets were sold for $ 1237.50. Wrote a system of linear equations for the problem
Answer:
3.5x + 2.50y = 1237.50
425 = x + y
Step-by-step explanation:
number of adult tickets: x
number of student tickets: y
3.5x + 2.50y = 1237.50
( value of adult ticket [3.50]* number of adult tickets [x]) + (value of student ticket [2.50] * number of student tickets [y]) = total value (1237.50)
425 = x + y
(number of adult tickets [x]) + (number of student tickets [y]) = total (425)
A full glass of water can hold 1/6 of a bottle.
How many glasses of water can be filled with 3 1/2. bottles of water?
Answer:
21 glasses
Step-by-step explanation:
6 glasses in a bottle
3 x 6 = 18
3 glasses in half a bottle
18 + 3 = 21
Answer:
21 glasses
Step-by-step explanation:
let 'g' = glasses of water
create a proportion, glasses over bottles equals glasses over bottles
1 = g
1/6 7/2
cross-multiply: 1/6g = 7/2
cross-multiply: 2g = 42
g = 21
I had 13 dollars. My mom gave me 10 dollars. My dad gave me 30 dollars. My Aunt, My Uncle, and Grandma gave me 100 dollars. I had another 7 dollars. How much did I have?
Answer:
370
13+10+30+100+100+100+7=370
Mrs. Pints wrote the volume formula as
“V=Bh”. What does ”B“ represents
Answer B stands For Base and h stands for Height
How is the solution of 2y=8 related to the solutions of 2y < 8
—
Answer:y=4 and the bottom is boundary point
Step-by-step explanation:
Answer:
y=4 and the bottom is boundary point
Step-by-step explanation:
HELP ASAP!!!!! PLEASE
Answer: imma say A
Step-by-step explanation: sorry if wrong
Find the perimeter and area of this shape
[tex] \boxed{ \sf{Area \: = 57 \: {cm}^{2} }}[/tex]
[tex] \boxed{ \sf{Perimeter = 34 \: cm}}[/tex]
See workings in the attached picture !
Hope I helped ! ツ
Have a wonderful day / night ! ♡
▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁
Kate is going to purchase a coat for $38, pants for $45, and 2 pairs of shoes for $34 each. If she has $180 to spend, how much will she have left over after she buys everything she wants?
Answer:
151
Step-by-step explanation:
38+45+2(34)=151
If u had 693 cats and 593 died
Answer:
you would have 100 cats left
5. Which two parts of the house have the
same area?
Answer:
Probably the floor and the roof
Step-by-step explanation:
PLS HELP ILL GIVE BRAINLIEST AND EVERYTHING ELSEE
Which model is equivalent to 4(2x +4)?
Answer:
option 4 should be the correct answer
Daniel works for 3 hours one day he gets paid $6 an hour.
The black triangles are similar. Find the value of x.
27
X
16
18
Answer:
x=24
Step-by-step explanation:
tell me if you want the steps
Answer:
x=24
Step-by-step explanation:
Jody packs:
2 skirts
3 pairs of pants
4 pairs of shorts
for her vacation.
What is the ratio of shorts to pants?
1Points
A
3:4
B
3:9
C
4:3
D
4:9
Answer:
C
Step-by-step explanation:
srslly its easy just look at it
Find the y intercept of the following equation. simplify your answer.
Answer:
b, the y-intercept, is 1
Step-by-step explanation:
Compare the given y = 4x + 1 to
y = mx + b
We see immediately that b, the y-intercept, is 1.
Help me please thanks
Answer: P = 79 feet
Step-by-step explanation:
V = (l)(w)(h)
171,114 = (57)(38)(p)
171,114 = 2,166p —> multiply
79 = p —> divide both sides by 2,166
Please help me with this brainly
it's C because the floor area is 120 square feet and the walls are 8 feet so if you multiply 120 × 8 you get 960.
x and y are two non-zero real numbers such that: x²-y²=15 and x+y=3√5. then x-y=
A. √15
B. √5
C. -3√5
Answer:
[tex](x-y)=\sqrt{5}[/tex]
Step-by-step explanation:
[tex]We\ are\ given\ that:\\x^2-y^2=15\\x+y=3 \sqrt{5}\\Now,\\We\ know\ that,\\If\ x\ and\ y\ are\ two\ real\ numbers,\\Then:\\(x+y)(x-y)=x^2-y^2\\Here,\\Substituting\ (x+y)=3\sqrt{5}\ in\ the\ LHS\ and\ (x^2-y^2)=15\ in\ the\ RHS,\\(x+y)(x-y)=x^2-y^2\\3\sqrt{5} (x-y)= 15\\Hence,\\(x-y)=\frac{15}{3\sqrt{5} } \\(x-y)=\frac{5*3}{3\sqrt{5} }\\(x-y)=\frac{5}{\sqrt{5} } [Cancelling\ 3\ from\ the\ numerator\ and\ denominator]\\(x-y)=\frac{\sqrt{5}*\sqrt{5} }{\sqrt{5} }\\(x-y)=\sqrt{5}[/tex]
A housing developer wants to create 45 house lots for every 10 acres of land. All the house lots will be the
same size and shape. Which of these is closest to the amount of land required to create 105 house lots?
A. 11 acres
B. 25 acres
C. 42 acres
D. 63 acres
Answer:
25 acres
Step-by-step explanation:
25 acres hope this helps
what is the value of the ( m ) in the equation 5 + m = 7
Answer: 2
Step-by-step explanation:
yeah
A family purchased tickets to a museum and spent a total of $38.00. The family purchased 4 tickets. There was $1.50 processing fee for each ticket
Answer:
38/1.50x4=101.33...
Step-by-step explanation:
Answer:
The answer is 8
Step-by-step explanation:
[tex]4 \frac{1}{9} + 1 \frac{1}{2} [/tex]
[tex]4 \frac{1}{2} \div \frac{3}{5} [/tex]
need help please
Step-by-step explanation:
[tex] \tt{ 1. \: \: 4 \frac{1}{9} + 1 \frac{1}{2}}[/tex]
⇢ [tex] \tt{ \frac{37}{9} + \frac{3}{2} }[/tex]
⇢ [tex] \tt{ \frac{37 \times 2 + 3 \times 9}{18} }[/tex]
⇢ [tex] \tt{ \frac{74 + 27}{18} }[/tex]
⇢ [tex] \tt{ \frac{101}{18}} [/tex]
⇢ [tex] \boxed{ \tt{5 \frac{11}{18}} }[/tex]
---------------------------------------------------------
[tex] \tt{ \: 2. \: \: 4 \frac{1}{2} \div \frac{3}{5}}[/tex]
⇢ [tex] \tt{ \frac{9}{2} \times \frac{5}{3}} [/tex]
⇢ [tex] \tt{ \frac{9 \times 5}{2 \times 3}} [/tex]
⇢ [tex] \tt{ \frac{45}{6}} [/tex]
⇢ [tex] \boxed{ \tt{7 \frac{3}{6}} }[/tex]
Hope I helped ! ♡
Have a wonderful day / night ! ツ
▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁
What is the perimeter of a square with a length of 19 meters?
Answer:
76 m
Step-by-step explanation:
If each side has a length of 19 m, then the perimeter is 19m*4 = 76 m
I already did questions but I need help with the rest
Include your scatter plot and the answers to the following questions in your word processing document.
1. Which variable did you plot on the x-axis, and which variable did you plot on the y-axis? Explain why you assigned the variables in that way.
2. Write the equation of the line of best fit using the slope-intercept formula $y = mx + b$. Show all your work, including the points used to
determine the slope and how the equation was determined,
3. What does the slope of the line represent within the context of your graph? What does the y-intercept represent?
4. Test the residuals of two other points to determine how well the line of best fit models the data
5. Use the line of best fit to help you to describe the data correlation.
6. Using the line of best fit that you found in Part Three, Question 2, approximate how tall is a person whose arm span is 66 inches?
7. According to your line of best fit, what is the arm span of a 74-inch-tall person?
Answer:
ok so 6 is connected to question 2, question 4 is asking two other points to determine how it will fit best in the models, question 5 use the line of the best fit to help u describe the data correlation, and question 7 it is jus asking wht the arm span of a 74inch tall person so jus figure the arm span yk (hope this helps)
Step-by-step explanation:
What is 530,000,000 divided by 15 million?
Answer:
Step-by-step explanation:
35.3333333333
Which of the following is the equation of a line that has a slope of 5 passes through the point (-3, 7)?
Answer:
y - 7 = m(x + 3)
Step-by-step explanation:
Apply the point-slope formula: y - k = m(x - h)
Then we have y - 7 = m(x + 3)
The temperature in Portland, Oregon,
is 37°F. The temperature in Mobile,
Alabama, is 22°C. In which city is
the temperature higher?
Answer:
I think 22°C
Step-by-step explanation:
what is the least common denominator of the rational expressions below? 1/x^2-4/3x^2+15
Answer:
3x^2(x+5)
Step-by-step explanation: