Answer:
202 Square inches and here's a cool face ツ
Answer:
202 square inches
Step-by-step explanation:
4x13=52 and 15x10=150 so 150+52=202
What is the solution to the system of linear equations represented by the matrix equations below. Please help!!!!!
The system of equations has infinite solutions.
Option D is correct.
What is matrix multiplication?Matrix multiplication is a binary operation whose output is also a matrix when two matrices are multiplied.
To multiply one matrix with another, we need to check first, if the number of columns of the first matrix is equal to the number of rows of the second matrix. Now multiply each element of the column of the first matrix with each element of rows of the second matrix and add them all.
Given
Matrix equations
[tex]\left[\begin{array}{ccc}2&4\\1&2\end{array}\right] \left[\begin{array}{ccc}x\\y\end{array}\right] = \left[\begin{array}{ccc}6\\3\end{array}\right][/tex]
L.H.S:
Using Matrix multiplication
[tex]\left[\begin{array}{ccc}2&4\\1&2\end{array}\right] \left[\begin{array}{ccc}x\\y\end{array}\right] = \left[\begin{array}{ccc}2x+4y\\x+2y\end{array}\right][/tex]
R.H.S:
[tex]\left[\begin{array}{ccc}6\\3\end{array}\right][/tex]
[tex]\left[\begin{array}{ccc}2x+4y\\x+2y\end{array}\right]=\left[\begin{array}{ccc}6\\3\end{array}\right][/tex]
Writing equation from above matrix
2x + 4y = 6
x + 2y = 3
or
2x + 4y = 6
2x + 4y = 6
Because there are two unknown number, but the two equations are consistent.
So, the system of equations has infinite solutions.
Option D is correct.
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The doctor has written an order for 350 mg of a particular drug. It is only available in a
liquid form. If each mL of the liquid contains 25 mg of the drug, how much of the liquid
will need to be given? Use dimensional analysis to set up the problem.
Answer:
14 mL
Step-by-step explanation:
because 1 ml = 25 mg we just need to divide 350 mg by 25 mg to know how many mL are equivalent to 350 mg.
350/25 = 14
therefore 14mL is equivalent to the 350 mg of the drug.
Hence, the liquid will need to be given is [tex]14ml[/tex] which is equivalent to the [tex]350[/tex] mg of the drug.
What is an equation?
The definition of an equation is a mathematical statement that shows that two mathematical expressions are equal.
Here,
[tex]1ml=25mg[/tex], here we need to divide [tex]350mg[/tex] by [tex]25 mg[/tex] to know how many [tex]ml[/tex]are equivalent to [tex]350 mg.[/tex]
i.e., [tex]\frac{350}{25}=14[/tex]
Therefore, 14mL is equivalent to the [tex]350[/tex] mg of the drug.
Hence, the liquid will need to be given is [tex]14ml[/tex] which is equivalent to the [tex]350[/tex] mg of the drug.
To know more about the equation
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Ms. Brand spends $24 on 8 bags of chips for a party. How much does each bag of chips cost? (aka, what is the constant of proportionality?
Answer:
3$ hgggggggggggggggggggggggggggggg
Step-by-step explanation:
24÷8=3
Please help!!!
Right Triangle A is a scale drawing of Right Triangle B. What is the area of right triangle B.
Answer:
x is 64 .
so the area of triangle b is 1 divide 2 ×64 ×8 which is 512 cm2
Three people invest at a ratio of 1:4:7. If the partnership is worth $636,000, what did each person invest?
Answer:
See the detailed answers below
Step-by-step explanation:
Given data
Ratio= 1:4:7
combined ratio= 1+4+7= 12
Total amount= $636,000
Apply the part to all method
The first person will take
1/12= x/ 636,000
cross multiply
12x= 636,000*1
x= 636,000/12
x= 53000
The second person will take
4/12= x/ 636,000
cross multiply
12x= 636,000*4
x= 2544000/12
x= 212000
The third person will take
7/12= x/ 636,000
cross multiply
12x= 636,000*7
x= 4452000/12
x= 371000
Kevin needs to buy some cardboard to build a box 11 inches long, 7 inches wide, and 10 inches high. How much cardboard is needed to build the box?
Answer:
770 inches of cardboard is needed to build this box
Step-by-step explanation:
Use the formula for cubes B x W x H
The base of the cube will be 7 inches the length is 11 inches, and the height is 10 inches. Then, we multiply.
7 x 11 x 10 = 770
The graph shows the function y = 3x - 1. What are the coordinates of the intercepts?
Answer:
Answer down bellow!
Step-by-step explanation:
y-intercept:(0,-1)
Also, the slope is 3!
For what value of x is line / parallel to line m in this figure?
Answer:
132
Step-by-step explanation:
The angle with a measure of 48 degrees and the angle labeled "x" are supplementary angles. Supplementary angles add up to equal 180
This means that we can find the value of the missing angle by subtracting the measure of the known angle from 180
So x = 180 - 48
180 - 48 = 132
Hence, x = 132
Simplify. 3(8x - 4) - 6x + 6
A- 18x+18
B- 18x-6
C- 20x-6
D-30x-6
Answer:
B. 18x - 6
Step-by-step explanation:
3(8x - 4) - 6x + 6
24x - 12 - 6x + 6
18x - 12 + 6
18x - 6
Please help!!!!!! I’ll give brainliest:)
Answer:
480
Step-by-step explanation:
The dice landed on two odds 12 out of the 50 times. Which is 24% of the time (.24). You then do 2,000 times 24% and get your answer of 480.
A 1x3 matrix times a 3x2 matrix, gives a product that is a
(I need both 7 and 8)
hello please help i’ll give brainliest
Answer:
letter b !!!!
Step-by-step explanation:
What are the polar coordinates for (-7, 7)?
Answer:
The polar form of (7, - 7) is (r, θ) = (7√2, - π/4)
Step-by-step explanation:
The radius of the pizza is 15 cm long.
What is the circumference of the pizza?
Express your answer in terms of pi
Answer:
30π cm
30pi cm
Step-by-step explanation:
c = 2πr
c = 2π(15)
c = 30π
Find the indicated side of the
triangle.
17
45°
a = [?][ ]
The indicated side of the triangle is 17√2 unit.
What is Pythagoras theorem?
In a right-angled triangle, the square of the hypotenuse side is equal to the sum of the squares of the other two sides, according to Pythagoras's Theorem.
Given:
The triangle is a right-angled triangle.
The length of the perpendicular = 17 unit.
Two angles of the triangle are 45° and 45°.
That means, base = 17 unit.
And the triangle is an isosceles triangle.
By the Pythagoras' theorem,
a = √(289 + 289)
a = √578
a = 17√2 unit.
Therefore, the value of a is 17√2 unit.
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A 16 ft ladder leans against a wall so that the base of the ladder is 5 ft away from the base of the wall. How far up the wall does the ladder reach.
Answer:
The ladder would reach 15.2 feet up
Lin got a $50 gift card to an online music store. She uses the gift card to buy an album for $9.99. She also wants to use the gift card to buy some songs. Each song costs $1.29
Answer:
$9.99 + $1.29x = $50
Step-by-step explanation:
something like this don't know if right though
A submarine dives 320 feet below the water's surface. Over the next six
minutes, it rises at a rate of 40 feet per minute. What integer represents the
position of the submarine after the six minutes?
Answer:
80
Explanation:
Since it rises at a rate of 40 feet per minute, just multiply 40 times 6 to get 240. Then subtract 320 minus 240 to get 80
I really need help!! can you explain how to do this and how you got your answer?
The volume of the cone is exactly ___ cubic centimeters.
Answer:
3141.59
Step-by-step explanation:
Solution with answer is in the attached image.
$32 is 8% of what amount?
Answer:
$32 is 8% of 400
Step-by-step explanation:
Have a good day :)
Answer:
100/8 = 12.5
32*12.5 = $400
Plz help will mark brainliest
∆ABC=∆DEF
AB=DE –>String
BC=EF–> Rib
m<C=m<F=90° –>List
AC=DF
So m<A=m<D=35 (It is not clear whether the number is 35 or 36, but the same number)
How do I solve these problems?
a cylinder has a radius of 7 meters and a height of 4 meters
Answer:
I need more information to complete this and what answer do you need
Step-by-step explanation:
help! I'm being timed!
Answer:
X=160
Step-by-step explanation:
if there is 21 marbles in a jar how many marbles would it hold of its full
Answer:
It would hold 30 marbles in total
A cell phone company advertises that their data plan costs "0.02 cents" for every kilobyte of data. Corinne used 1000 kilobytes of data. Using the advertised price, determine how much Corinne owes on the data plan.
Mike is 5 more than twice Carl's age. Mike's age plus Carl's age is 41. How old is
Mike?
Find the probability. Enter your answer as a simplified fraction.
Picking a purple marble from a jar with 3 green and 3 purple marbles.
The probability of picking a purple marble is
Answer:
1/2
Step-by-step explanation:
3+3=6 and 3/6 is 1/2
Keisha just bought 8 bags of 16 cookies each. She already had 6 cookies in a jar. How many cookies does Keisha have now?
Answer:
134 Cookies
Step-by-step explanation:
you first multiply 8 with 16
then you add six to the product
Answer:
134
Step-by-step explanation:
She bought 8 bags with 16 each .
So we get 8x16 , which gives us , 128 .
She already had 6 cookies so we get our total from the ones she bought and add that to out initial value , 6 .
128+6= 134
In Conclusion Keisha has 134 cookies in all .
- I really hope this helped , I'm terribly sorry if it didn't. :,)
Stay safe and have a wonderful day ! <3
~Sleepy~
PLEASE ANSWER CORRECTLY <3 I WILL GIVE BRAINLIEST THANKS IN ADVANCE!
Answer:
1: 130
2: 70
Step-by-step explanation:
Supplementary angles add up to equal 180
So to find the measure of the missing angles, we subtract the measure of the known angles from 180
For #1
∠B = 180 - 50
180 - 50 = 130
Hence ∠B = 130
For#2
∠D = 180 - 110
180 - 110 = 70
Hence, ∠D = 70
