Use the graph to solve the given system of equations,
x-3y=-3
x+y=5
Answers
Answer:
x=3
y=2
Step-by-step explanation:
Related Questions
24 dollars for 7 books can you give me the rate and unit plz and thank you love
Answers
Answer:
4 dollars per book
Step-by-step explanation:
When full, the gas tank of a car holds 22 gallons. It now contains 16.5 gallons. What percent represents how full the tank is?
Answers
Answer:
75%
Step-by-step explanation:
16.5/22 = 0.75
0.75 x 100 = 75
∴ 75% of the tank is full.
What is the vertex of the graph of the function below?
y= x2 - 10x + 21
O A. (5,-4)
B. (3,0)
O C. (5,0)
OD. (3,-4)
Answers
Answer:
Step-by-step explanation:
A. (5,-4)
The vertex of the graph of the function is (5,-4).
The answer is option A.
What is a function?A function has an input and an output.
A function can be one-to-one or onto one.
It simply indicated the relationships between the input and the output.
Example:
f(x) = 2x + 1
f(1) = 2 + 1 = 3
f(2) = 2 x 2 + 1 = 4 + 1 = 5
The outputs of the functions are 3 and 5
The inputs of the function are 1 and 2.
We have,
To find the vertex of the function y = x² - 10x + 21,
We can use the formula:
x = -b/2a
where a is the coefficient of the x² term, b is the coefficient of the x term, and x is the x-coordinate of the vertex.
In this case,
a = 1 and b = -10, so:
x = -(-10)/(2 x 1) = 5
To find the y-coordinate of the vertex, we can substitute x = 5 into the function:
y = (5)² - 10(5) + 21 = -4
Therefore,
The vertex of the graph of the function is (5,-4).
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(4)2 -4(-5) (-1) Help Please For This
Answers
Answer:
-12
Step-by-step explanation:
first 4 times 2 is 8
so- 8-4(-5)(-1)
next negative four times negative 5 positive 20
so- 8+20(-1)
20 times negative 1 is -20 plus 8 is -12.
6 and three-fourths divided by 1 and two-thirds?
Answers
Answer:
81/20
Step-by-step explanation:
please answer this question GIVING BRAINLIEST!!
Answers
Answer:11
Step-by-step explanation:
Answer:
the answer i belive is 11
Step-by-step explanation:
Question 2 of 10
Which of these questions can be answered with numbers?
O A. Is there an engineering school?
O B. What intramural sports are offered?
O C. Is financial aid available?
ОО
D. How much is the tuition?
SUBMIT
Answers
Answer:
I guess its D?
Step-by-step explanation:
Jake biked 24 miles in 4 hours. If he biked at a constant rate of speed, how far did he bike in 1 hour?
Answers
Answer:
24 divided by 4 is 6
Step-by-step explanation:
24/4 = 6 so it would be 6 miles you have divide 24 by 6
On the last day of school, Davon surveys the students in his class to find out how many absences each had during the school year. The results are shown below.
{15, 0, 10, 1, 4, 4, 7, 6, 9, 9, 13, 11, 6, 5, 3, 8, 4, 3, 10, 17, 11, 4, 4, 3}
Represent these data on the histogram below.
!!!PLEASE HELP!!! To create the histogram, place your cursor over each interval on the x-axis then click and drag the bar up to graph the correct number of students. If you need to change the number of students you placed, click the top of the bar then drag the bar up or down to show the number of students you need. (there are 5 colums and it only goes up to 12)
Answers
Answer:
0-2 = 2. 3-5 = 9. 6-8 = 4. 9-11 = 6 12 & more = 3
Mr. Morris bought lunch for the entire class, costing him $80. He left a 20%
tip. How much was his total bill?
Answers
Answer:
$96.00
Step-by-step explanation:
if the bill is $80 an there was a 20% tip, that would mean that the tip was $16, and 80 + 16 = 96. the total bill is $96.00
use multiplication to find all the whole number ratios equivalent to 5 to 11
Answers
Answer:
thxfor free points
Step-by-step explanation:
5 to the power of 3 + 4 to the power of 2 - 3 to the power of 2
Answers
Answer:
Step-by-step explanation:
5^3+4^2-3^2= 132
125+16-9
132
What is the basic ratio of 36:84
Answers
3:7
Step-by-step explanation:
divide them both by 12
Answer:
3/7
Step-by-step explanation:
you keep simplyfiying until you get to the unit rate.
How to Solve a Problem A 4-column table with 3 rows. Column 1 has entries run, do not run, total. Column 2 is labeled lift weights with entries 40, blank, 65. Column 3 is labeled do not lift weights with entries blank, x, blank. Column 4 is labeled total with entries 75, blank, 120. Can you determine what number x represents from the information given? Explain how you got your answer.
Answers
Answer:
Yes, you can determine the number of people who do not run or lift weights by first finding that 55 people do not lift weights, and that 35 people run, but do not lift weights. Subtracting 35 from 55, you get that 20 people do not do either.
Step-by-step explanation:
The required value of a number of people is 20 who don't do either.
What are Arithmetic operations?Arithmetic operations can also be specified by subtracting, dividing, and multiplying built-in functions.
Column 1 has the entries run, do not run, and total. Column 2 is called lift weights, and it has the values 40, blank, and 65. Column 3 is captioned "do not lift weights" and has entries blank, x, and blank. Column 4 is called total and has the entries 75, blank, and 120.
As per the given information, the required solution would be as:
The number of people who do not run or lift weights by first determining that 55 individuals do not lift weights and 35 people run but do not lift weights. When you subtract 35 from 55, you get 20 people who don't do either.
Thus, the required value of a number of people is 20 who don't do either.
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HELP ME PLEASE ONLY k12 reasoning and proof
Answers
Answer:
angle addition and x=15
Step-by-step explanation:
PLEASE HELP!!!!!
a,b,c,or d?!?!?
Answers
Answer:
A
Step-by-step explanation:
MARK BRAINLIEST
Let |r| = 6 at an angle of 30° and |s| = 11 at an angle of 225°. Which expression represents |r – s|?
Answers
Answer:
probably c. the one w cos(165) on the end
Step-by-step explanation:
hope this drawing helps at all~ looks a bit busted but yea
The value of expression is, [tex]|r-s|=\sqrt{284.5}=16.86[/tex]
Sum of vectors :If two vector r and s are present. Then magnitude of resultant of these two vectors are calculated by cosine formula.
[tex]|r-s|^{2}=r^{2} +s^{2} +2|r||s|cos\theta[/tex]
Where [tex]\theta[/tex] is angle between both vectors.
A diagram is attached below.
[tex]|r-s|^{2}=6^{2} +11^{2} +2*6*11*cos15\\\\|r-s|^{2}=36+121+127.5\\\\|r-s|^{2}=284.5\\\\|r-s|=\sqrt{284.5}=16.86[/tex]
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Porfavor soy nueva me pueden ayudat resolviendo estos ejercicios
Le estoy corona y los sigo tambien porfis ayudeme
Answers
Por ejemplo, si x = 2a, entonces debajo de x^2 sera (2a)^2 = 4a^2.
Mismo va para y^2.
Para 2xy, haces el mismo. Por ejemplo, si x = 2a y y = 3b, 2xy sera 2(2a)(3b) = 2(6ab) = 12ab.
Sigues este pattern para la tabla.
Y para los otros cuestiones, yo te recomiendo que los “expand” y simplificas. (Lo siento español no es mi premier lenguaje)
Por ejemplo:
(4x^3 + 2y)^2
(4x^3 + 2y)(4x^3 + 2y)
(4x^3)^2 + 2(8x^3y) + 4y^2
* multiplicar los exponentes
4x^6 + 16x^3y + 4y^2
4(x^6 + 4x^3y + y^2)
Y desde aquí creó que puedes obtener los productos. Si necesitas mas ayuda mándame una mensaje. Espero que te ayuda!
Add 1/2 + (-3/4)= show the work
Answers
Answer:
2/4 - 3/4 = -1/4
Step-by-step explanation:
2/4 is half
3/4 is a little more than half
2/4-3/4=1/4
Hope this helps!! :D
Simplify 3 square root of 512
Answers
Answer:
8
Step-by-step explanation:
not sure if this is what ur looking for sorry
The simplified form of 3√(512) using radical is 48√(2).
To simplify √(512), find the prime factorization of 512.
Prime factorization of 512:
512 = [tex]2^9[/tex]
Now, rewrite the square root as follows:
√(512) = √[tex](2^9)[/tex]
Next, use the property of square roots that states √(a * b) = √(a) * √(b):
√[tex](2^9)[/tex] = √([tex]2^8 * 2)[/tex]
= √[tex](2^8) * \sqrt(2)[/tex]
Since √[tex](2^8)[/tex] is equal to [tex]2^4[/tex] then
√(512) = [tex]2^4[/tex] * √(2)
Finally, simplify √(2) as it is not a perfect square:
√(512) = [tex]2^4[/tex]* √(2)
= 16 * √(2)
So, the simplified form is 48√(2).
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A music teacher sells piano lesson packages.
Piano Lesson Packages
Total Cost
Number of Lessons
$90
10
$160
20
$80
10
$120
20
Which package has the lowest ratio of cost to number of lessons?
Answers
Answer:
$120 for 20 lessons
Step-by-step explanation:
has the lowest ratio
Answer:
The Answer is 120 for the cheapest piano lessons
Maria drives 130 miles in 2 hours. If she keeps driving at the same speed without stopping, what is the total time it will take her to drive 650 miles?
Answers
Explanation: 650 divided by 130 is 5 and 2 hours multiplied by 5 hours is 10 hours. Sorry if I got it wrong, but hoped I helped.
Answer:
10 hours~!
Step-by-step explanation:
my sister leigha is 4 years old, Sheila is 12 yrs old. when leigha becomes 18 how old will sheila be?
Answers
Answer:
26
Step-by-step explanation:
Sheila will be 26.
.........
Mr. Ramirez purchased 25 concert tickets for a total of $245. The concert tickets cost $17 for adults and $12 for children under the age of 12.
Answers
Answer:
Step-by-step explanation: Use the variables “a” for adults and “c” for children.
Sarah used properties of operations to write the following three equivalent expressions to .
A. There are no errors. All of the expressions are equivalent.
B. Expression 1. Sarah can’t apply the Distributive Property if there are three addends.
C. Expression 2. Sarah can’t combine -4 and -6. She must combine -4 with 8.
D. Expression 3. Sarah applied the Distributive Property but incorrectly multiplied 1/2 (-6) .
Answers
Answer:
The answer is d
Step-by-step explanation:
The step expression 3 is incorrect, there should be -3 in place of +3.
What is expression?An expression in maths, a statement involving at least two different numbers (known or unknown) and at least one operation.
Given is an expression, 1/2{-4+8+(-6)}
On solving, we get,
1/2{-4+8+(-6)}
= 1/2(-4) + 1/2(8) +1/2(-6)
= 1/2{-4+(-6)} + 4
= -2+4-3
When we will divide, -6 by 2, we will get -3 and Sarah used +3 which made her expression 3 incorrect.
Hence, The step expression 3 is incorrect, there should be -3 in place of +3.
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Take a look at the following set of data: 5, 12, 24, 19, 1, 32, 194. What word describes the data point 133?
1.outsider
2.median
3.range
4.outlier
Answers
Answer:
Outlier!! I know it sounds like a cat poster but it's true
Step-by-step explanation:
Answer:
median
Step-by-step explanation:
it means average which the average of the set will give you 133
Find the value of x that makes u and v parallel
Answers
Answer:
3
Step-by-step explanation:
equate the two together to get the value of x
Who do u guys think will win National League MVP if ur right u'll get brainlyest
no idk
Answers
Answer:
Will Leitch
Step-by-step explanation:
which expression is equivalent to 6-(-8)
○ -6+8
○ -6+(-8)
○ 6+(-8)
○ 6+8
Answers
Answer: 6 + 8
Step-by-step Explanation: When you're adding and subtracting positives and negatives and you see a minus a negative in a problem, you can change it to plus a positive.
So 6 - (-8) can be thought of as 6 + (+8).
Answer:6+8
Step-by-step explanation:
Be prepared to share with the class -
What are a couple of things you have noticed? Any Wonderings?
Answers
Answer:
2x
Step-by-step explanation:
In the unlike terms column, they have different variables which means you can’t add or subtract them together. They also have different exponents, so you can’t add or subtract them either.
The coefficients can be different, but the variable and the degree of the variable must remain the same in order for it to be considered like terms. Hope this helped!