Answer: im very sorry
Step-by-step explanation:
Use matrices to rotate the vector v=<-4 , 1> by 270°. Write the resulting vector in component form
Using rotation rules, it is found that the resulting vector is:
v = <1, 4>
When a vector in component form <x,y> is rotated by 270 degrees, the rule is:
<x, y> -> <y, -x>
That is, x and y are switched, and the signal of x changes.
In this problem, the vector is v <-4, 1>, hence:
<-4, 1> -> <1, -(-4)> -> <1,4>
Hence, <1,4> is the resulting vector.
A similar problem is given at https://brainly.com/question/12673036
Is there a direct proportion in 4.5a = b + 12
help . This is rise and run .
Answer:
Rise 4 and runs -10
Step-by-step explanation:
So the slope is 4/-10
Help HELP HELP HELP URGENT
Answer:
28
Step-by-step explanation:
Given the base and height, we can split the triangle into 2.
So now the height for our right triangle with still be 25 but the base will become half of what it used to be which is 12.
Using the Pythagorean Theorem:
A^2+B^2=H^2
a = side of right triangle
b = side of right triangle
c = hypotenuse
Plugin the values
25^2+12^2=H^2
625+144=H^2
769=H^2
27.73=H
Rounded to 28
Hope this helps :)
Can someone help me plzz
Given that XY is a line segment with the angle a = 51°, work out the value of
the angle marked b.
Y
b
a
X
The diagram is not drawn to scale.
ASP PLZ
Answer:
129º
Step-by-step explanation:
This is just a guess since you didn't include the diagram
b is supplemetary to a
therefor
b = 180 - a
b = 180 - 51
b = 129º
Simplify the scale 5mm: 1 meter , writing your answer in ratio form.
Answer:
1 : 200
Step-by-step explanation:
To get an answer in ratio form, we must convert meters into millimeters or we can convert millimeters to meters. Then we can get our answer.
Step 1: Convert.
=> 5 millimeters : 1 meter
=> 5 millimeters : 1000 millimeters
Step 2: Simplify.
=> 5 millimeters : 1000 millimeters
=> 1 millimeter : 200 millimeters
Key Note: Answer in ratio form is always unitless.
=> 1 : 200
So therefore, 1 : 200 is our ratio. Hoped this helped.
Select the number line model that matches the expression | -6 - (-3)∣
During a day a student spends 7 hours sleeping ¼ of the day studying and 1/12 of the time travelling what fraction of the day is left for other things (in fraction)
The width of a rectangle is the length minus 4 units. The area of the rectangle is 12 units. What is the width, in units, of the rectangle?
Answer:
the width is 3
Step-by-step explanation:
you divide the 4 by 12
Answer:
2 units
Step-by-step explanation:
Area = Length × Width of a rectangle
If Length = L
Width = L-4
So 12 units = L×(L-4)
12 = L^2 -4L
L^2 -4L -12=0
Simplify this equation
L^2 + 2L -6L -12 = 0
L( L+2) - 6(L+2) = 0
(L+2) (L-6) = 0
L+2 =0 Or L-6=0
L=-2 Or L= +6
But L can't take a negative value
therefore L= 6
Now if we substitute and check,
L× (L-4) = 6×2=12 units
width = 6-4 =2 units
what is the answere to 7 times 4/21
[tex] \Large{\boxed{\sf 7 \times \dfrac{4}{21} = \dfrac{4}{3}}} [/tex]
[tex] \\ [/tex]
Explanation:[tex] \blue{\begin{gathered}\begin{gathered} \\ \boxed { \begin{array}{c c} \\ \blue{ \sf{\boxed{ \sf Multiplication \: of \: fractions \text{:}}}} \\ \\ \sf \dfrac{a}{b} \times \dfrac{c}{d} = \dfrac{a \times c}{b \times d} \\ \\ \end{array}}\\\end{gathered} \end{gathered}} [/tex]
[tex] \\ [/tex]
[tex] \sf 7 \times \dfrac{4}{21} [/tex]
[tex] \\ [/tex]
First, write 7 as a fraction:
[tex] \\ [/tex]
[tex] \sf 7 \times \dfrac{4}{21} = \dfrac{7}{1} \times \dfrac{4}{21} [/tex]
[tex] \\ [/tex]
Then, identify the value of a, b, c, and d:
a = 7b = 1c = 4d = 21[tex] \\ [/tex]
We can finally find our answer:
[tex] \\ [/tex]
[tex] \sf \dfrac{7}{1} \times \dfrac{4}{21} = \dfrac{7 \times 4}{1 \times 21} = \dfrac{28}{21} [/tex]
[tex] \\ [/tex]
Let's simplify our answer:
[tex] \\ [/tex]
[tex] \sf \dfrac{28}{21} = \dfrac{4 \times 7}{4 \times 7} = \boxed{\boxed{\sf \dfrac{4}{3}}} [/tex]
[tex] \\ \\ [/tex]
▪️Learn more about the multiplication of two fractions here:
↦https://brainly.com/question/25774102
help please!!
ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ
Step-by-step explanation:
1 not function
2 function
3 not function
4 function
ihope it helps
9. The area of a rectangular fence is 300 square feet. If the width of the
fence is 15 feet, then find its length.
Answer:
20 feet
Step-by-step explanation:
The area formula is lw=A, where l is the length, w is the width, and A is the area. So, plug in the known variables. This creates the equation l15=300. Then, solve for l by dividing both sides by 15. Therefore, l=20. You can check your answer by plugging in all of the variables to create the equation 20*15=300. This is a true statement, thus 20 feet must be the correct length.
12. Hannah wants to buy 4 presents for at least $60. She wants to spend an equal amount of money on each present. Write and solve an inequality to show the least amount of money Hannah will spend on each present
Answer: 15
Step-by-step explanation:
So it is pretty much 60/4 which is easy 15 here is the work
1 5
4 6 0
- 4
2 0
- 2 0
0
Answer:
x ≥ $15
Step-by-step explanation:
At least means ≥
4x ≥ $60 Replace the inequality sign with an = sign and solve the equation.
4x = $60
x = $60 ÷ 4
x = $15 Now put the inequality sign back into the problem
x ≥ $15
PLEASE HELP FAST; What is (7 · 5 · 2 / 7 · 3)^2 x (5^0 / 2^-3)^3 x 2^-9?
-10/9
20/3
-100/9
-700/3
Answer:
I think it's 900
Step-by-step explanation:
20 plants were measured and their heights recorded in cm. Here are the heights: b) Draw a fre 8.2 6.5 2.7 19.4 to represe 16 14.1 17.1 14 8 4.9 2.9 15.5 7.3 15 4.4 11.8 13.9 7 10.2 4.6 19.5 7.3 6 . Ол о a) Complete the frequency table. Height, h cm Frequency 0
The required frequency table as
Heights, h cm Frequency
0 < h ≤ 5 5
5 < h ≤ 10 4
10 < h ≤ 15 6
15 < h ≤ 20 5
What is the frequency of an observation?The frequency of a variable value is the number of times it appears in a particular observational series or data.
A variable's frequency is always a positive integer.
Here the heights in the condition of 5 < h ≤ 10 appear as 4.
Here the heights in the condition of 10 < h ≤ 15 appear as 6.
Here the heights in the condition of 15 < h ≤ 20 appear as 5.
The required frequency table as
Heights, h cm Frequency
0 < h ≤ 5 5
5 < h ≤ 10 4
10 < h ≤ 15 6
15 < h ≤ 20 5
Thus, the required frequency table of the given observation is above.
Learn more about the frequency of an observation here:
https://brainly.com/question/5102661
#SPJ2
What is the approximate area of a circle with a diameter of 10in
Answer:
A≈78.54in²
Step-by-step explanation:
Can I have brainliest pls?
x =
12
9
6 2/3
help me out please you guys are awesome ^-^
the answer is x = 6 2/3
ok done. Thank to me :>
so my math teacher made us do a review and I forgot how to do 8.90 x 15 bc when I do it's not in the multiple choices help
Answer:
133.5
An easy way of doing this is to ignore the decimal so consider it as 89 instead because 0 is insignificant. So do 89x15 = 1335 we know that 8.90 has 1 decimal place because 0 is not significant so you just add 1 decimal place which becomes 133.5
PLEASE HELP
Please factor completely by finding the greatest common factor:
12xy^4 − 21x^2y^5z + 36xy^3
Answer:
-3xy^3 (7xy^2z-4y-12)
Step-by-step explanation:
Simply factor out "-3xy^3." GL!
Answer:
so in both you can see that 7xy is common . Thus it is a common factor.Step-by-step explanation:
What is the value of x?
A
3x - 5
Enter your answer in the box.
4x - 30
В
B
X=
2x + 20
Answer: x = 25
Step-by-step explanation:
This appears to be an equilateral triangle. All angles are shown to be the same. This means all 3 sides will have the same length:
3x-5
4x-30
2x+20
are all equal to each other.
3x-5 = 4x-30
x = 25
----
3x-5 = 70
4x-30 = 70
2x+20 = 70
f(x)=X^2+2x-3
HELPPPP FINAL
First, you factor the equation
(x-1)(x+3)=0
x=1,-3
Hope this helps :)) and btw another resource for this type of question would be desmos graphing calculator where you could just enter in the euqaoitn and get the answer!
What is the sum of 3/12 + 2/12
Answer:
5/12
Step-by-step explanation:
You want to buy dome new books that cost $13 each. Shipping is $5 per order. If you but 9 books, what us the cost of the order
2 different ways to construct congruent angles
Answer
1.make them same length
2. do not forget to include lines
Step-by-step explanation:
x is a whole number such that 7x – 3 > 18
Write down the smallest value of x.
7x - 3 > 18
Add 3 to both sides
7x > 21
Divide both sides by 7:
X > 3
Since x has to be greater than 3 the smallest whole number that would work is 4
Answer: 4
Answer:
see below
Step-by-step explanation:
7x – 3 > 18
Add 3 to each side
7x – 3+3 > 18+3
7x> 21
Divide by 7
7x/7 >21/7
x > 3
The smallest integer value of x is 4
If a number y has z positive integers factors, then y and 2z integer factors. True or false?
Answer: TRUE
ANSWER IS IN THE PICTURE MARK ME BRAINLIEST!!Answer:
true
Step-by-step explanation:
both of them are probably integers.
(fyi this is a question found in grade 8 mathematics text book in ethiopia page 64)
alberto started out bench pressing 40 pounds, he then added 5 pounds every weeks
PLEASE HELP
What is the explicit formula for this sequence?
-6, -2, 2, 6, 10, ...
^ an = (-6) + (n-1)4
For what value of P, the binary number 1910, represents 14?
Answer:
1110
Step-by-step explanation:
14 in binary is 1110