The error made by Kaitlyn when solving the system of equations is in step 2. Her solution will be incorrect.
The right option will be: No, she made an error in step 2. She should have found y = 0. 5.
Given the system of linear equations:
-3x + 2y = 8 ---> eqn. 1
3x + 2y = -6 ---> eqn. 1
First add both equations together:
Step 1: 4y = 2
Next, divide both sides by 4:
Step 2: y = 2/4
y = 0.5
Kaitlyn got y = 2 instead of 0.5 in this second step. The solution she would get will be incorrect since an error has occurred here.Therefore, the error made by Kaitlyn when solving the system of equations is in step 2. Her solution will be incorrect.
The right option will be: No, she made an error in step 2. She should have found y = 0. 5.
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HELP!! I desperately need help!! I would appreciate if you could show work please!!!
Answer:
a) 137.9°
b) 12.2° (please refer to explanation because I didn't know what to round to)
Step-by-step explanation:
1a) A supplementary angle will equal 180°, so you must subtract 42.1 from 180
180-42.1 = 137.9
1b) A complementary angle will equal 90°, so you need to use the expression given and add an x for the other part of 90°
8x-20+x = 90
9x-20=90
9x=110
x=12.2
c(n)=-6+5(n-1) Find the 8th term in the sequence
Answer:
-7
Step-by-step explanation:
c(8)=-6+5x7
c(8)=-1x7
c(8)=-7
solve the following x2-2x-24=0
Answer:
[tex]x=6[/tex] and [tex]x=-4[/tex]
Step-by-step explanation:
[tex]x^2-2x-24=0[/tex]
[tex](x-6)(x+4)=0[/tex]
[tex]x=6[/tex] and [tex]x=-4[/tex]
What is the measure of the missing angle in this triangle
Yes
Answer:
The measure of the missing angle is 25 degrees.
using the letters from the word equation, how many 5-letter patterns can be formed in which q isfollowed immediately by u?
Using the arrangements formula, it is found that there are 720 words that can be formed.
The number of possible arrangements of n elements is the factorial of n, that is:
[tex]A_n = n![/tex]
In this problem:
The non-qu letters of the word equation will be arranged in 5 positions.The "qu" can be positioned in 6 ways(letters 1-2 to letters 6-7), hence:[tex]T = 6 \times 5! = 6! = 720[/tex]
There are 720 words that can be formed.
To learn more about the arrangements formula, you can take a look at https://brainly.com/question/24648661
Simplify.
46‾√+26‾√−6‾√
56‾√
518‾‾‾√
618‾‾‾√
66‾√
618 hope this helps you have an amazing week
What is the slope of the line that passes through the points shown in the table?
X Y
-1 -5
0 -3
1 -1
2 1
can anyone help me pls
Answer:
88 degrees, 44 degrees
Step-by-step explanation:
The total of angles in a triangle is 180 degrees
so, 48+x+x-44=180
48-44+x+x=180
4+2x=180
-4 on both sides
2x=176
x=88
Which speed is the fastest? 4 miles in 1/3 hour 1/3 mile in 4 hours 1/2 mile in 3 hours
Answer: 4 miles in 1/3 hour
Step-by-step explanation:
Which ordered pair is the solution set
for 3x + 5y < 10?
Answer:
Slope is -3/5
Slope intercept form: y<-3/5x+2
Step-by-step explanation:
Your going to have a shaded region, with a dashed line
the y intercept will be (2)
the x intercept will be (3.333,0)
The vertices of AXYZ are X(-4, 7), Y(0, 8), and Z (2, -1).
What are the vertices of r(180, 0) (AXYZ)?
"
Answer:
Step-by-step explanation:
i think it true if right mark me as brainiest and thank
1 4/8 in a improper fraction?
Step-by-step explanation:
Step 1: Multiply the whole number part (1) by the denominator (8).
1 × 8 = 8
Step 2: Add the product from Step 1 (8) to the numerator (4).
8 + 4 = 12
Step 3: Write that result (12) above the denominator. So,
[tex]\frac4{8}{1}[/tex]
Step 4: The fraction [tex]\frac{12}{8}[/tex]
Can be reduced by dividing both numerator and denominator by the GCD(12,8) = 4. Thus,
[tex]\frac1{4}{8} =\frac{3}{2}[/tex]
what expressions are equivalent to 7 ^ 8 x 7 ^ -4
Answer:
7^4
Step-by-step explanation:
The equivalent expression 7^8 x 7^-4 using a single exponent is 7^4
How to write the expression using a single exponent.From the question, we have the following parameters that can be used in our computation:
7 ^ 8 x 7 ^ -4
This means that
7^8 x 7^-4
Apply the law of indices
So, we have
7^8 x 7^-4 = 7^(8 - 4)
This gives
7^8 x 7^-4 = 7^4
Hence, the solution is 7^8 x 7^-4 = 7^4
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y-2=-7/5(x--2). Please include explanation when giving your answer. I'm really struggling with this. 20 points for whoever can answer this.
Answer:
[tex]x=\frac{10y-27}{5\left(-2+y\right)};\quad \:y\ne \:2[/tex]
Step-by-step explanation:
First, you have to simplify [tex]\frac{-7}{5(x-2)}[/tex] to become [tex]-\frac{-7}{5(x-2)}[/tex]
Next, you multiply both sides by [tex]5(x-2)[/tex] to make [tex]y\cdot \:5\left(x-2\right)-2\cdot \:5\left(x-2\right)=-\frac{7}{5\left(x-2\right)}\cdot \:5\left(x-2\right)[/tex]
After that, you need to simplify again to become [tex]y\cdot \:5\left(x-2\right)-10\left(x-2\right)=-7[/tex]
Now, expand [tex]5(x-2)-10(x-2)[/tex] to become [tex]5xy-10y-10x+20=-7[/tex]
Then, add 10y to both sides [tex]5xy-10y-10x+20+10y=-7+10y[/tex]
Next, you simplify to create [tex]5xy-10x+20=-7+10y[/tex]
After that, subtract 20 from both sides to make [tex]5xy-10x+20-20=-7+10y-20[/tex]
Now, simplify again to get [tex]5xy-10x=10y-27[/tex]
Next, factor [tex]5xy-10x[/tex] to get [tex]5x(y-2)[/tex]
Finally, divide both sides by [tex]5(y-2)[/tex] to get [tex]\frac{5x\left(y-2\right)}{5\left(y-2\right)}=\frac{10y}{5\left(y-2\right)}-\frac{27}{5\left(y-2\right)};\quad \:y\ne \:2[/tex]
If you did it right your final answer should be [tex]x=\frac{10y-27}{5\left(-2+y\right)};\quad \:y\ne \:2[/tex]
Hope this helps explain it!
Here is a balanced Hanger. Each triangle weighs 2.5 pounds, each circle weighs 3 pounds, and x represents the weight of each square. Select all equations that represent the hanger
Answer:
c if am wrong please correct me
Determine whether it is possible to form a triangle
with side lengths 4.2, 4.2, and 8.4.
O yes
no
Answer:it is possible to have a triangle with the given side lengths. 7,9,13. Add any two sides and see if it is greater than the other side.
Step-by-step explanation:
how many days would it take for a tiger to eat a boar
What is the slope
A. 2
B. 4
C. 5
We know the slope formula.
=> [tex]\frac{y_{2} -y_{1} }_{x_{2}-x_{1} } }[/tex]=> [tex]\frac{16-12}{7-5}[/tex]=> [tex]\frac{4}{2}[/tex]=> [tex]2[/tex]Conclusion:Therefore, the slope is 2.
Hoped this helped.
[tex]BrainiacUser1357[/tex]
∠HOA appears to be a right angle.
true or false
Answer:
False!
Step-by-step explanation:
Right angles are 90 degrees, for example EOA appears to be closer to a right angle but not HOA
FIND THE PROBABILITY OF EACH EVENT. MAKE SURE YOUR PROBABILITY IS IN SIMPLEST FORM (NOT KEYWORDS)
M&M BAG HAS 5 BLUE, 6 GREEN, 10 YELLOW, 2 RED, AND 3 BROWN.
blue________
yellow_________
brown and red_________
not blue or brown________
purple____________
not red____________
skittles_____________
M&M__________
FIRST TWO ANSWERS HAVE A CHANCE OF GETTING BRAINLIEAST
Answer:
(a) The probability that at least 5 of the first 10 sites contain the given keyword is 0.0328.
(b) The probability that the search engine had to visit at least 5 sites in order to find the first occurrence of a keyword is 0.4096.
Step-by-step explanation:
Mark as brainliest if correct
26=7(g−9)+1226, equals, 7, left parenthesis, g, minus, 9, right parenthesis, plus, 12
Find 3 other points for this equation for both x and y ( bots don’t answer pls )
Answers:
Row one: x = -10 and y = -4Row two: x = 0 and y = 6Row three: x = 2 and y = 8There are infinitely many other possible answers.
===================================================
Explanation:
The [tex]\frac{3}{3}[/tex] simplifies to 1. Dividing any nonzero number over itself always leads to 1.
So the equation [tex]y = \frac{3}{3}x+6[/tex] simplifies to [tex]y = x+6[/tex]
To determine y, we add 6 to x.
Pick 3 random values you want for x.
Let's say we picked x = 0
y = x+6
y = 0+6
y = 6
So x = 0 leads to y = 6
-----------
If you tried something like x = 2, then,
y = x+6
y = 2+6
y = 8
So (2,8) is another point on the line
-----------
Lastly, let's try a negative number. Let's go for x = -10
y = x+6
y = -10+6
y = -4
The input x = -10 gives the output y = -4
There isn't any restriction on x, so you can use any number you want. Therefore, there are infinitely many possible answers.
ANSWER ASAP WILL MARK BRAINLIEST
Answer:
how many
Step-by-step explanation:
Please help, I will mark brainliest :)
Answer:
Its A $0.50 per mile
Step-by-step explanation:
Points A, B and C lie on a circle, centre O.
Angle AOC = 142°.
Find the value of y.
The value of y in the cyclic quadrilateral with ∠AOC(142°) is 38°
The diagram above represents a cyclic quadrilateral.
A cyclic quadrilateral has all it vertices on the circumference of the circle.
Therefore,
Opposite angles are supplementary. This means they add up to 180 degrees.
Therefore,
142° + y° = 180°
subtract 142 from both sides of the equation
142 - 142 + y = 180 - 142
y = 38°
learn more about circle theorem here: https://brainly.com/question/24795394
one more time what 4 + 4 × 4 + 4 ÷ 4=
Answer:
I think probably 21
Step-by-step explanation:
4+16+1 = 21
Helpp with number 23 pls
Answer : Susan is correct
Susan is correct because if you get that chart and turn all the numbers to decimals and divide the chart in half you will get the answer to 1.4/0.2 because the chart has 14 slots and if you divide that by 2 you will get 7 just think of 1.4/0.2 as 14/2.
hey guys , can you help me with this question please … i seriously don’t wanna fail this
Answer:
48
Step-by-step explanation:
You get the third length which is the hypotenuse then you add them all since its asking for the perimeter
QUICK I NEED HELP….PLZ Hurry!! ;-;
Which equation represents a liner function
Equation 1: Y=2x+1
Equation 2: Y^2= 3x+1
Equation 3: y=5x^5-1
Equation 4: Y= 4x^4-1
Answer: Equation 1: Y=2x+1
Step-by-step explanation:
tim and sue share a small pizza. tim eats 2/3 o the pizza
Answer:
Sue eats 1/3 of the pizza
Step-by-step explanation:
Answer:
Sue eats 1/3 of the pizza
Step-by-step explanation:
3/3 - 2/3 = 1/3