4 -2 5
5 -1 8
this is what it showed in brackets as the correct answer.
The matrix that represents the system of equations 4x-2y=5 and 5x- y=8 is [tex]\left[\begin{array}{cc}4&-2\\5&1\end{array}\right] \left[\begin{array}{c}5&8\end{array}\right][/tex]
How to determine the matrix?The system of equations is given as:
4x-2y=5
5x- y=8
Remove the variables
x y
4 -2 5
5 -1 8
Represent as a matrix
[tex]\left[\begin{array}{cc}4&-2\\5&1\end{array}\right] \left[\begin{array}{c}5&8\end{array}\right][/tex]
Read more about matrix at:
https://brainly.com/question/1821869
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Howard can type 70 words per minute. At this rate, how many words can he type in
15 minutes?
Answer:
1050
Step-by-step explanation:
ez
70x15
Answer:
1,050
Step-by-step explanation:
you get the answer by using 70/1=x/15 or 70x15 which is 1,050
A researcher has collected the following sample data. The mean of the sample is 5. 3 5 12 3 2 Refer to Exhibit 3-2. The coefficient of variation is _____.
Answer:
81.24%
Step-by-step explanation:
First we solve for the variance
Sample space of
3,5,12,3,2
n = 5
Variance = s²
= (3-5)²+(5-5)²+(12-5)²+(3-5)²+(2-5)²/5-1
= 4+0+49+4+9/4
S² = 66/4
= 16.5
Secondly we find the standard deviation
= √16.5
= 4.062
Coefficient of variation
Cv = sd/mean x 100
= 4.062/5 x 100
= 406.2/5
= 81.24%
What is the equivalent ratio of 3/10
Answer:
6/20
Step-by-step explanation:
multiply 3 x 2 then 10 x 2 and you will have an equivalent ratio. Theres alot more of them but heres a simple one.
Answer:
6/20
12/40
24/80
Step-by-step explanation:
Alicia took a survey to determine her classmates’ favorite pets. She wrote the results on the board. Select whether each statement is true or false
Answer:
c
Step-by-step explanation:
1. Explain and give the formula for the formula for the following properties for segments in a circle.
a. Segments from Chords:
b. Segments from Secants:
c. Segments from a Secant and Tangent line:
2. Explain what a radian is and how it relates to a degree.
3. Define the following terms.
a. Inscribed Circle of a Triangle:
b. Incenter:
c. Circumscribed Circle of a Triangle:
d. Circumcenter:
Answer:
see explanation
Step-by-step explanation:
1
(a)
If 2 chords of a circle intersect then the product of the measures of the parts of one chord is equal to the product of the measures of the parts of the other chord.
(b)
If 2 secants are drawn from an external point to a circle then the product of the measures of one secant's external part and the entire secant is equal to the product of the measures of the other secant's external part and that entire secant.
(c)
If a tangent and a secant are drawn from an external point to a circle , then the square of the measure of the tangent is equal to the product of the measures of the secant's external part and the entire secant.
2
A radian is defined as the angle subtended at the centre of a circle by an arc equal to the radius of the circle.
1 revolution = 360° = 2π radians
1 radian = [tex]\frac{360}{2\pi }[/tex] ≈ 57°
3
(a)
An inscribed circle of a triangle is a circle drawn inside a circle so the circle barely touches the sides of the triangle.
(b)
The incentre is at the point of intersection of the triangle's 3 angle bisectors.
(c)
A circumscribed circle of a triangle ( circles drawn around the triangle so that the circle passes through each of the triangles's vertices.
(d)
The circumcentre is at the intersection of the perpendicular bisectors of the triangle's sides.
'
- Save & Exit Certify
2/15
Correct
Question 4 of 15, Step 1 of 1
A rock is thrown upward with a velocity of 25 meters per second from the top of a 34 meter high cliff, and it misses the cliff on the way back down. When will the rock
be 8 meters from ground level? Round your answer to two decimal places.
Gravity Formula
Answer:
Do you have a picture because i work better with pictures
Step-by-step explanation:
A researcher randomly selected 500 students from the total of 8000 students that attended a private college in California in order to investigate the average number of hours spent studying per day at this private college. The researcher found that these 500 students studied an average of 5.75 hours a day.In the previous question, the 5.75 hours a day would be an example of a
Answer:
Statistic
Step-by-step explanation:
We are given four options
Parameter
Statistic
Sample
Population
In the given question the total number of students represents the population i.e population and the population size would be= N= 8000
The number of students selected represent a sample the sample size would ben= 500
A statistic is used for a given sample e.g in the given question the mean of the sample represents the statistic.
A parameter is used for a population e.g in the given question the mean of the population would be a parameter. A parameter is computed from the entire population
The correct option is statistic.
is 1.8L greater than 1,500 ML
Answer:
yes
Step-by-step explanation:
Answer: yes
Step-by-step explanation: 1.8 L is greater than 1,500 ML because 1.8 L equals 1800 ML.
One Liter has 100 mL
Hope this helps :)
Two cups of flour make 23 batch of bread. How many cups of flour make 1 batch?
- A beaker is filled with 0.23 liter of water. Leon
fills another beaker with 3 times as much
water. How much water is in Leon's beaker?
A 0.96 liter
B 0.84 liter
C 0.69 liter
D 0.47 liter
Answer:c
Step-by-step explanation:
7•7•7•7+1+1 exponent
Answer:
The right answer is 2,403
Step-by-step explanation:
52:54
If f(x) = 6x – 4, what is f(x) when x = 8?
2
16
44
52
Answer: 44
Step-by-step explanation:
f(x)=6x-4
f(8)=6(8)-4
f=48-4
f=44
Answer:
44 is the answer
Step-by-step explanation:
This is right on edg. 2020
Union City Bakery uses a chocolate chip muffin recipe that yields 1/2 cup of milk for every batch of 12 chocolate chip muffins. Based on the recipe:
* How much milk is needed to make each muffin?
* How much milk in needed to make 24 chocolate chip muffins?
Answer:
Grease bottoms only of 12 muffin cups or line with baking cups. ... I made some changes to the recipe;
Step-by-step explanation:
I added 1 cup milk, 1 cup chips, 1 cup ... was way too much batter for 12 muffins; I ended up making two trays and they were done in 18 minutes. I give it four stars only because of all the changes I had to make
pls help find x of this and help me understand how to find it :)
What is the difference between heat and temperature?
How does a thermometer measure temperature?
When, if at all, does heat transfer stop?
Exit Ticket
What type of heat transfer occurs when eggs fry in a pan?
What type of heat transfer occurs when you roast a marshmallow by holding it over a campfire?
What type of food in which convection helps the cooking process? Explain your answer
When you touch a picnic table, your hand gets warmer. Explain how energy conservation applies to this situation
please answer these i give brainliest
Answer:
heat is hot and tempture is all
The ratio of male employees to female employees is 1:3. If there are 144 female
employees in total, how many males are there?
Answer:
There are 48 male employees.
Step-by-step explanation:
144 divided by 3 = 48
48 x 1 = 48
Therefore there are 48 male employees.
1. A T-shirt company charges a design fee of $25 and then sells the shirts for $10 each. The total cost
y can be represented by the equation y = 10x + 25, where x represents the number of T-shirts. The graph
of the equation is shown. Describe what the slope and y-intercept represent.
Answer:
the slope is 10 dollars times how many ever shirts
the y-intercept is the design put on the shirt which costs 25
[IMAGE ATTACHED]
Please help me with 9
Answer:
C=35x+75
It would cost $425 for 15 people
Step-by-step explanation:
Marcus graphed a point on the number line. A number line going from 0 to 1 with 8 equal spaces between 0 and 1. A point is marked on the line half-way between 0 and 1. What fractions did he graph? Check all that apply.
Answer:
A,C,D
Step-by-step explanation:
I got it right :D
Mr Tan bought a house for $410 000. He paid a deposit of 30% and took on a loan for the remaining amount. How much was his loan? Give your answer
correct to the nearest ten thousands.
Answer:
The amount of the loan Mr. Tan borrowed was $ 287,000.
Step-by-step explanation:
Since Mr. Tan bought a house for $ 410,000, paying a deposit of 30% of its value and requesting a loan for the rest of its value, to determine the amount of the loan, the following calculation is required:
100 - 30 = 70
410,000 x 0.70 = X
287,000 = X
Therefore, the amount of the loan Mr. Tan borrowed was $ 287,000.
The perimeter of a rectangular field is 336 m. If the length of the field is 89 m, what is its width?
It says to classify what does this mean I be dumb
What does a polygon look like
A polygon looks like this,
The length of a rectangle is three times its width. If the area of the rectangle is 243 m squared, find it’s perimeter
Answer: 72
Step-by-step explanation:
L= 3W
area of a rectangle A= LxW
replace L with 3 W
A=3W*W= 3w^2
243=3W^2
243/3=W^2
81=w^2, and W=9
L=3*9=27
P= (L+W)=2(27+9)=72
Daniel wanted to make note cards by cutting pieces of paper in half. Before starting he got three more pieces to use. When he had 20 half-pieces of paper. With how many did he start with? ( I need the step by step how to solve this)
Answer:
10
Step-by-step explanation:
before he started, he had 7 pieces of paper and then grabbed 3 more = 10 sheets of paper
he took those sheet and cut them in half so...
10 sheets cut in half = 20
Answer: 20
Step-by-step explanation:before he started, he had 7 pieces of paper and then grabbed 3 more = 10 sheets of paper
he took those sheet and cut them in half so...
10 sheets cut in half = 20
a square and rectangle are shown below the width of the rectangle is the same length at a side of the square both represented by x the length of the rectangle is one foot more than twice its width the perimeter of the rectangle is 26 feet more than that of the square write an expression for the length of the rectangle in terms of x label of the drawing
Answer:
The answer for the length of the rectangle in terms of x is 2x+1=26
Step-by-step explanation:
Which of the following is NOT equivalent to the other three?
In a card game it is possible to have negative score. If Laura starts with a score is 10 what will be her new score if she loses 38 points ?
Answer:
28
Step-by-step explanation:
10-38=28
$&#:÷&#&;#&$;'ebsjdkeowkdbs;#&$;'fbxjrbxjr
please answer fast:(((
Answer:
5
Step-by-step explanation:
I would say 5 because it looks like an isosceles triangle and isosceles triangles have two equal legs on a triangle.
Enter a range of values for x.
+
42°
3x+156
23
21
[ ? ]

Answer:
-5<x<9
Step-by-step explanation:
It took me a while to find figure it out.