Answer:
When estimating area, count the squares that cover the shape. When estimating perimeter, count the unit lengths that are around the shape
Step-by-step explanation:
Joan bought a soft drink for 4 dollars and 9 candy bars. She spent
a total of 40 dollars. How much did each candy bar cost?
Cost of 9candies=40-4=36$
Cost of one candy:-
[tex]\\ \sf\longmapsto \dfrac{36}{9}[/tex]
[tex]\\ \sf\longmapsto 4\$[/tex]
Answer:
Let c = the cost of each candy bar
4 + 9c = 40
subtract 4 from 40
9c = 36
divide 9 from 36
c = $4.00
If they are linearly dependent, find scalars that are not all zero such that the equation below is true. If they are linearly independent, find the only scalars that will make the equation below true :
[-5] [2] [-17]
[4] [-1] [16]
[5] [5] [45]
Are the vactors linerly independent.
I bet you're talking about column vectors,
[tex]\begin{bmatrix}-5\\4\\5\end{bmatrix}, \begin{bmatrix}2\\-1\\5\end{bmatrix},\text{ and }\begin{bmatrix}-17\\16\\45\end{bmatrix}[/tex]
If these vectors are linearly independent, this means that
[tex]c_1 \begin{bmatrix}-5\\4\\5\end{bmatrix} + c_2 \begin{bmatrix}2\\-1\\5\end{bmatrix} + c_3 \begin{bmatrix}-17\\16\\45\end{bmatrix} = \begin{bmatrix}0\\0\\0\end{bmatrix}[/tex]
only if [tex]c_1=c_2=c_3=0[/tex].
In matrix form, we can write this as a system of linear equations,
[tex]\begin{bmatrix}-5&2&-17\\4&-1&16\\5&5&45\end{bmatrix}\begin{bmatrix}c_1\\c_2\\c_3\end{bmatrix} = \begin{bmatrix}0\\0\\0\end{bmatrix}[/tex]
This system has a potentially non-zero solution so long as the coefficient matrix is not singular.
Compute the determinant:
[tex]\begin{vmatrix}-5&2&-17\\4&-1&16\\5&5&45\end{vmatrix} = -5 \begin{vmatrix}-1&16\\5&45\end{vmatrix} - 4 \begin{vmatrix}2&-17\\5&45\end{vmatrix} + 5 \begin{vmatrix}2&-17\\-1&16\end{vmatrix} \\\\ \begin{vmatrix}-5&2&-17\\4&-1&16\\5&5&45\end{vmatrix} = -5(-45-80) - 4(90+85) + 5(32-17) \\\\ \begin{vmatrix}-5&2&-17\\4&-1&16\\5&5&45\end{vmatrix} = 0[/tex]
The coefficient matrix is singular, so there is no non-zero solution to the system, and in turn the given vectors are linearly dependent.
In a class of 48 children there are six more girls than boys how many boys are in the class
Answer: there are 16 boys in the class which means not ever girl can have a bf
Step-by-step explanation:
write 25x^2-150x+9y^2=0 in standard form
Answer:
[tex]\frac{(x-3)^{2} }{9} +\frac{y^{2} }{25}=1[/tex]
Step-by-step explanation:
Find the area of this triangle
Answer:
56 m²
Step-by-step explanation:
Hi there!
[tex]A=\displaystyle\frac{1}{2} bh[/tex] where b is the base and h is the height of the triangle
Plug in the base (14 m) and the height (8 m):
[tex]A=\displaystyle\frac{1}{2} (14)(8)\\\\A=\displaystyle\frac{1}{2} (112)\\\\A=56[/tex]
Therefore, the area of the triangle is 56 m².
I hope this helps!
Finding Ordered Pairs from an Equation For the equation below, x is the input and y is the output. Choose the ordered pair that makes a true statement for the equation.
Answer: The answer is dddddd
Step-by-step explanation:
fbfgzgsdgrhzdfgreyty
Given: ΔABC
Prove: The sum of the interior angle measures of ΔABC is 180°.
What is the missing step in this proof?
Answer:
first draw three triangle of different sizes and shape after that make box and measure each angle of each triangle with protractor and add three angles of triangle after you will find answer 180
Please help I’m in desperate need
Answer:
-r+3+5p
Step-by-step explanation:
it helps trustvhgh
Choose all expressions that are equal to 5.
31÷6.2
27.6÷5.2
18.6÷4
6÷2.1
20.1÷4.1
Answer:
without rounding, only the 1st one would be equal to 5
Step-by-step explanation:
31÷6.2=5
27.6÷5.2=5.307...
18.6÷4=4.65
6÷2.1=2.8
20.1÷4.1=4.9
BUT HEY, I HAVE PARANOIA AND THIS TIME I DIDNT CHECK LIKE A DOZEN TIMES SO MAYBE IM WRONG
oh and i forgot to say have a nice day or night or etc and good luck!
Answer:
31 / 6.2 = 5
Step-by-step explanation:
31/6.2 = 5
27.6/5.2 = 5.3
18.6/4 = 4.65
6/2.1 = 2.86
20.1/4.1 = 4.90
.) The function g is related to one of the parent functions g(x) = |x − 1| + 5 a.) Identify the parent function f. b.) Use function notation to write g in terms of f
Answer:
baljwjjwjsjjwjjejejjwkkjwjjwjwjwjjejejwjjejejjekkeke
I need help ASAP. ! I’m in 7 grade and I am not very good a math
Determine the distance between the two points (-1,4) and (7,10).
The distance between the points is
Answer:
10
Step-by-step explanation:
The formula for distance is [ √(x2 - x1)^2 + (y2 - y1)^2 ]
√(7 - (-1))^2 + (10 - 4)^2
√(8)^2 + (6)^2
√64 + 36
√100
10
Best of Luck!
If (5^4)m = 5^12, what is the value of m? (4 points)
A. 2
B. 3
C. 5
D. 8
Answer:
The value of m is 3
Step-by-step explanation:
(5^4)m =5^12
M = 3
(5^4)3 =5^4*3=12
(5^4)3 = 5^12
Answer:
(5 ^4)^m = (5)^12
625^m = (5)^12
Taking logs of both sides
log(625) *m = log (5) *12
m = log (5) *12 / log(625)
m = 0.69897000434 * 12 / log (625)
m = 0.69897000434 * 12 / 2.7958800173
m = 0.69897000434 * 12 / 2.7958800173
m = 3 answer is B
Here's a handy logarithm calculator: https://www.1728.org/logrithm.htm
Step-by-step explanation:
If m3 is 120°, what is m4?
Answer:
M3=120
M3=120
M4=? M4×120÷M3= M4=160
Which Statement is true for the absolute values of points P and Q on the number line?
Answer:
1. B |-8| > |6|
2. C |-9| > |-8|
Step-by-step explanation:
The correct statement is B. |-8| > |6|.
What is absolute value function ?An absolute value function is always positive irrespective of what sign is inside the modulus function as we know if |x| = a then x = a OR - x = -a if we cancel both the negative signs it also becomes |x| = a.
According to the given question we have been given a number line and asked to find the correct statement from the options.
Given two absolute value points |-8| and |6|.
We know |-8| is 8 and |6| is 6.
∴ The correct relation is |-8| > |6|.
learn more about absolute value function here :
https://brainly.com/question/10664936
#SPJ2
PLEASE HELP MEEEE!!!!!
Answer:
midpoint is (2, -3 )
Step-by-step explanation:
The midpoint can be found with the formula {(x1+ x2 )/2, (y1 + y2.)/2.} ( x1 , y11 ), and (x2 , y 2 ) are the coordinates of two points, and the midpoint is a point lying equidistant and between these two points.
I REALLY NEED HELP ASAP> PLEASE INCLUDE THE WORK AND HOW I SHOULD GRAPH IT.
Answer:
which class of question is this
apply the Pythagorean theorem to find the measure of leg in the following right triangle:
please
Answer:
6 m
Step-by-step explanation:
the Pythagorean theorem :
a²+b²=c²
=> b² = c²-a²
= 10²-8²
= 100-64
=36
so, b = √36 = 6
round 40408 to the nearest 100
Answer:
40400
Step-by-step explanation:
In order to round down, the tens place has to be less than 5. In this case, the tens place is 0. In order to round up, the tens place has to be greater than or equal to 5.
The Roy's safety-first ratio is actually a standard normal variable that measures the distance to the right of the mean.A. TrueB. False
Answer:
false................
On Monday, 198 students went on a trip to the zoo. A 4
buses were filed and 6 students had to travel in cars How many students were
in each bus?
7th grade scale factors coloring sheet anwser key
Answer:
7th Grade Math Scale Factor and Scale Drawings Review Packet - print and digital
Find the area of the shaded region
5x + 1
2x * 3
6
Answer:
Area of shaded region=[6×(5x+1)]-[4×(2x+3)]
=(30x+6)-(8x+12)
=30x+6-8x-12
=30x-8x+6-12
=24x-6
Evaluate -10+16/(-2)+7 and show your work
Answer:
-11
Step-by-step explanation:
[tex] - 10 + \frac{16}{( - 2)} + 7[/tex]
[tex] - 10 + 7 = - (10 - 7) = - 3[/tex]
[tex] - 3 + \frac{16}{ - 2} [/tex]
[tex] - 3 - 8 = - (3 + 8) = - 11[/tex]
[tex]\boxed{\green{= - 11}}[/tex]
What type of number is
-v16?
Answer:
A, B, C
It is a rational number, whole number, integer.
Step-by-step explanation:
[tex] - \sqrt{16} \\ = - 4[/tex]
What is the median of the followng set of number 1,6,8 and 10
The answer is 2.5
Step-by-step explanation:
Formula = (N + 1 / 2th) term
So,
Total numbers (N) = 4
Now,
(N + 1 / 2th) term
= (4 + 1 / 2th) term
= (5 / 2th) term
= (2.5th) term
If you like it plz make me brainliest
4) Without actually adding how can you tell if the sum of two numbers will be zero? Give an example,
Answer:
If there is a positive number being added by its negative opposite
Step-by-step explanation:
Find the quotient and the remainder. 9x^4 - x^2 + 2x + 9 divided by x^2 + 8 Use polynomial long division
Step-by-step explanation:
Solution
Given:
9x4−4x2+4 divided by 3x2−4x+2
To find:
Quotient and remainder
Solution:
Consider,
3x2+4x+2
3x2−4x+2 )9x4−4x2+4
9x4+6x2−12x3
12x3−10x2+4
12x3−16x2+8x
6x2−8x+4
6x2−8x+4
0
From the above long division,
Quotient=3x2+4x+2
Remainder=0
Write a numerical expression for the calculation.
Add 79, 167, and 19, and then divide by 40.
PLSSS HELP MEEE
Answer:246.475
Step-by-step explanation:
79+167+19/40
f(x)=2x
2
−x+9
\text{Find }f(4)
Find f(4)
Answer:
37
Step-by-step explanation:
f(x)=2x²−x+9
f(4)= 2(4)²-4+9
= 32-4+9
= 37
