Step-by-step explanation:
multiply 5x+2y=19 by 3 youll get 15x+6y=57
eliminate y
7x-6y=9
15x+6y=57 +
22x=66
x=3
substitute x to 5x+2y=19
15+2y=19
2y=4
y=2
What are four ways to represent functions?
A function shows the relationship between at least two variables. There are several ways to represent a function; some of them are:
Using tablesUsing equationsUsing graphsBy verbal expressionsTables
The following table shows the relationship between two variables x and y
[tex]\left[\begin{array}{cccccc}x&1&2&3&4&5\\y&2&4&6&8&10\end{array}\right][/tex]
Equations
Notice that the y values of the above table are twice the corresponding x-values.
So, the equation can be represented as:
[tex]y = 2x[/tex]
Graphs
See attachment for the graph of [tex]y = 2x[/tex]
Verbal
As stated above, the value of y is twice the value of x.
The above statement is a verbal representation of a function
Hence, a function can be represented with a table, graph, equation and verbally.
Read more about functions at:
https://brainly.com/question/6241820
Someone please answer this for me ASAP
Answer:
m=-1/2
Step-by-step explanation:
what is the area of 4 1/2 feet wide and 6 1/2 feet long
Answer: 29 1/4
Step-by-step explanation:
Multiply and simplify to 29 1/4
How many different 5-digit whole
numbers can be made using the
digits: 2,3,4,5, and 6 when each
digit can be used once only?
Answer:
120
Step-by-step explanation:
so
?????this 5 interrogative marks are our 5 digit number
for the first place you have 5 choices(2, 3, 4, 5, 6)
for the second:4
for the third:3
for the fourth:2
and for the fifth:1
you multiply this choices
5×4×3×2=120
A manufacture of spark plugs how's it going producing less than 2% affective ones. Of the last 8000 spark plugs, 13 were defective. a. What is the experimental probability that the next sparkplug will be defective? b. Did the manufacture reach his goal? Explain.
Answer:
P = 0.001625
yes, it did
Step-by-step explanation:
given data
affective ones = 2%
spark plugs = 8000
defective = 13
to find out
experimental probability that the next sparkplug will be defective and Did the mannufacturer reach its goal
solution
we know that there are 13 are defective out of 8000
so P = 13 ÷ 8000
P = 0.001625
so that P( the next sparkplug will be defective) is = 0.001625
and
yes, we mannufacturer to reach goal
because 0.001625 < .02
So, the goal is reached as the experimental probability is less than 2%
This is due today, please help!!! I will give brainliest.
Answer:
Step 1, all the exponents are increased by 4
Step-by-step explanation:
The first incorrect step occurred in Step 1, where all the exponents were increased by 4.
This is mathematically incorrect due to exponential rules. When distributing exponents inside parentheses, we have to multiply the existing exponents inside the parentheses by the exponent outside the parentheses.
For example, (x²)³ is not x²⁺³, but rather, x⁽²⁾⁽³⁾.
We multiply the exponents instead of adding them together.
Therefore, the correct Step 1 should multiply all the variables' exponents by 4.
Steps 2 and 3 are correct since we do add the exponents when multiplying exponents with the same base, and we do subtract exponents with the same base when dividing.
pls help will give brainisest.
Find the length of A.
Answer:
If i'm correct I think that the length of a would be 4 because it shorter then five just by a minuscule measure .
Step-by-step explanation:
Fill in the blanks needs to be done by 9:30!!
Answer:
1. Straight line
2. mx+b
3. slope , y intercept
4. dont know sorry
Step-by-step explanation:
convert 2,000,000mm into Decametres
Answer:
200
Step-by-step explanation:
1 decameter =10,000
so 2,000,000/10000=200
Answer:
200
Step-by-step explanation:
To convert 2,000,000mm into Decameters
Formula = Divide the mm to 10,000
2,000,000/10,000 we get 200
Find the sum of the interior angle measures of a convex 15-gon (a fifteen-sided polygon).
Answer:
2340 degrees.
Step-by-step explanation:
The sum of the interior angle measures of any polygon can be calculated using the following expression ([tex]n[/tex] is the number of sides the polygon has):
[tex]180(n-2)[/tex]
For a 15-sided polygon, plug in 15 for n and simplify:
[tex]180(15-2)=180(13)[/tex]
Multiply to solve:
[tex]180(13)=2340[/tex]
For a 15-sided polygon, the sum of the interior angles must be 2340 degrees. You can go a step further and divide 2340 by 15 to figure out the individual measure of each interior angle (156 degrees).
The sum of the interior angles of a fifteen-sided polygon is 2340°.
What is the formula for interior angle of a regular polygon?The formula for calculating the sum of interior angles is (n-2)×180° where is the number of sides. All the interior angles in a regular polygon are equal. The formula for calculating the size of an interior angle is: interior angle of a polygon = sum of interior angles ÷ number of sides.
Given that, a fifteen-sided polygon.
Now, the sum of the interior angle measures is
(15-2)×180°
= 13×180°
= 2340°
Therefore, the sum of the interior angle measures is 2340°.
Learn more about the sum of interior angles here:
https://brainly.com/question/28793979.
#SPJ2
What are vernal pools?
A lakes
B swimming pools
C hollows where water collects
D caves where wild animals sleep
Answer: C. Hollows where water collects :)
Step-by-step explanation:
7+1-8-5||
(1-4) +17
What the answer
Answer:
Step-by-step explanation:
-5(3)+13
Can someone help me solve all of these problems for brainliest and a heart? please and thank you!
Answer:
Top Right Problem: PACKAGE #2 and $0.80
Bottom left: BAND and $0.05
Bottom Right: PEPSI and $0.05
Which of these is a unit rate? (from time4learning)
(A). $3.50 for 2 gallons of juice
(B). $5.00 for 3 pounds of cheese
(C). $4.25 for 1 watermelon
(D). $2.75 for 6 hamburger rolls
Answer:
B
Step-by-step explanation:
I will give brainliest to who answers this. Please answer quick
Answer:
Im pretty sure it would just be g= -p+15
Step-by-step explanation:
I really hope this helps, if not I am so sorry
Answer:
G= 1/6p -15
Step-by-step explanation:
Let's solve for g.
p=6g+90
Step 1: Flip the equation.
6g+90=p
Step 2: Add -90 to both sides.
6g+90+−90=p+−90
6g=p-90
Step 3: Divide both sides by 6.
6g/6 = p−90/6g
=1/6p−15
Write an equation of the line that passes through the given points.
(2,6) (-4,-2)
Answer:
y = 8/6x + 10/3
Step-by-step explanation:
You find the slope (m) first which is
Change of y over change of x
(6) - (-2) over (2)- (-4)
8/6 = m
Then you plug it into the equation y = mx + b
y = (8/6)x + b
Now you pick any of the set of points to plug in for x and y to solve for b
(6) = (8/6)(2) + b
6 = 8/3 + b
b = 10/3
Then plug into the equation for just m and b to get the equation of the line that passes thru both sets of points.
y = 8/6x + 10/3
Using addition, subtraction, multiplication, division, exponents, grouping symbols, and at least one positive and negative number, make an expression equal to 10 (no repeating numbers)
Answer:
2 + 3 (1) + (10 / 5)^2 + 7 - 6 = 10
Step-by-step explanation:
2 + 3 (1) + (10 / 5)^2 + 7 - 6
= 2 + 3 + (2)^2 + 7 - 6
= 2 + 3 + 4 + 7 - 6
= 10
In the diagram AB is parallel to CD. What is the value of X
Answer:
B) 120
Step-by-step explanation:
of the following functions represent
exponential growth?
f(x) = 001(1.77)*
f(x) = 2(1.5)
f(x) = 5(0.5)*
f) = 5e+
DONE
PLEASE HURRY 100 POINTS
Answer:
a,b,c
Step-by-step explanation:
edg
Answer:
A. f(x) = .001(1.77)x
B. f(x) = 2(1.5)^x/2
C. f(x) = 5(0.5)^-x
Step-by-step explanation:
Correct on Edge 2022
what is 3a + 2b - 6c
Answer:
Step-by-step explanation:
a = 3
b = 2
c = 12
3a+2b-6c
3(3)+2(2)-6(12)
-59?
What does x=? I'm really not sure about this.
Answer:
9
Step-by-step explanation:
For this, we need to know the scale factor first. We can do that by looking at a same side of the two shapes.
CD = 2 and ML = 3.6
3.6 / 2 = 1.8
just to confirm, let's take MN = 7.2 and DE = 4
7.2 / 4 = 1.8
So now we know the scale factor is 1.8
Now to figure out x, we just need to use BA = 5
and because the scale factor is 1.8
so we just need to do: 5 * 1.8 = 9
ill give brainlist if someone can help me with this question
Answer:
m = 1 and b = 5/7
Step-by-step explanation:
Take two of the points. The first two. (7, 5) and (8, 6).
We can find the slope using:
y2-y1/x2-x1
We can sub in the values:
6-5/8-7 = 1/1 = 1
So the slope is 1
now, putting this into y=mx+b, and using one of the coordinates from earlier, we can solve for b:
5 = (1)(7) + b
b = 5/7
Therefore, m = 1 and b = 5/7
Hope this helps!
A 4-ounce serving of yogurt has 8 grams of protein. How many grams of protein are in a 16-ounce serving container of yogurt? *
Answer:
16/4 = 4
4 * 8 = 32
32 grams in a 16 ounce serving
Answer:
32 grams of protein
Step-by-step explanation:
We know that 8 is double of 4, which means that if you have 16 ounces you are going to multiply by 2 to double it, which gives you 32.
A new app charges an annual fee plus an additional fee per new game downloaded. The table shows the linear relationship between the number of new games downloaded and the total cost including the annual fee. Which statement is true?
A.
The additional fee per game is $10.
B.
The additional fee per game is $1.99.
C.
The annual fee is $1.99.
D.
The annual fee is $19.99.
The correct answer is below:
a car uses 8 gallons of gas to travel 290 miles. how much gasoline will the car use to travel 490 miles
Answer:
11.03
Step-by-step explanation:
To find this answer, you would need to find how many miles 1 gallon of gas will take them. To find this, you would do 290÷8=36.25. So with this information, you will be able to find out how much gas it would take to travel 400 miles. You would do 400÷36.25=11.03. 11.03 would be how many gallons of gas is used to travel 400 miles.
Figure A is a scale image of Figure B.
16
10
Figure A
12.5
Figure B
What is the value of x?
Answer:
20
Step-by-step explanation:
I got it correct on khan
Maxine spent 15 hours doing her homework last week. This week she spent 18 hours doing homework. She says that she spent 120% more time doing homework this week. Is she correct? Show your work to justify your decision.
Answer:
I think it's wrong but.....2.7
Step-by-step explanation:
15:100=0.15
0.15×18=2.7
Ava's family has completed 40% of their road trip. They have traveled 72 miles. How many miles is the trip?
Answer:
180 miles
Step-by-step explanation:
if you divide 72 by 4 you can see what 1/10 of the trip is, which is 18. 18 times 10 (since 18 is one tenth of it) equals 180. hope this helps!
?? anyone know thank you❤️
Answer: 9/8
Step-by-step explanation:
you turn 1/2 into 4/8 and add that to 5/8 to get 9/8
Given the equation kx – 17 = 51 + x, where k=1, solve for X.
Answer:
No solution for x, when k = 1x = 68/(k - 1), when k≠ 1Step-by-step explanation:
Given the equation
kx – 17 = 51 + x, where k = 1,Solve for x:
1*x - 17 = 51 + xx - 17 = x + 51x - x = 51 + 170 = 68,Incorrect equation, no solution for x when k=1
Solving for x when k ≠ 1
kx - 17 = 51 + xkx - x = 51 + 17x(k - 1) = 68x = 68/(k - 1)