Answer:
1a 2a
Step-by-step explanation:
n × (−2+5 ) = −8+20
n × 3 = 12
n = 4
2 + (n+6) = −1+6
n + 8 = 5
n = -3
how can i solve these simultaneous equation 11x+11y=1001 and 10x+y=10
Answer:
[tex]10x + y = 10 (1)\\ 11x + 11y = 1001(2) \\ from \: equation \:(1) \: y = 10 - 10x \\ 11x + 11(10 - 10x) = 1001 \\ 11x + 110 - 110x = 1001 \\ 11x - 110x = 1001 - 110 \\ - 99x = 891 \\ \frac{ - 99x}{ - 99} = \frac{891}{ - 99} \\ x = - 9 \\ y = 10 - 10x \\ y = 10 - 10( - 9) \\ y= 10 + 90 \\ y = 100[/tex]
Step-by-step explanation:
Hope that this is helpful.
Have a great day.
.Ms. Mathews plays a matching game. In order to advance to the next
level, she must score at least 10 points. She scores 18 points for
correct matches and -6 points for incorrect matches. Did Ms.
Mathews make it to the next level? Explain.
Answer:
yes, because 18-6 is 12, which is still greater than 10
Step-by-step explanation:
How will the terms of the sequence be written
Answer:
the nth term of a sequence is usually denoted by the symbole an . a1 =2 the second term is a2=6 and so....
A term is multiplied by 3 to get the next term . if you know the formula for the nth term of a sequence of n , then you can find any term .
formula : an =a1 + ( n - 1 ) d
hope its helpful . Good luck ;)
A triangle has the following side lengths: 6ft, 8ft, and 10ft. Is this a right triangle?
How did you know that the triangle is or is not a right triangle?
Answer:
yes, it is a right triangle
Step-by-step explanation:
it follows the pythagorean theorem
if you were to plug in the numbers, it would work
a^2 + b^2 = c^2
6^2 + 8^2 = 10^2
36 + 64 = 100
hope this helps :)
The most suitable prefix to use to express the mass of a sheet of paper is:
A. Centi B. Milli C. kilo D. Mega
Answer:
B
Step-by-step explanation: a paper is so thin it can only be expressed in millimeters
solve the circled ones
Answer:
2) Yes, because every input (x) has an individual output (y)
6) No, because there is an input that has 2 outputs
8) No, because there is an input that has 2 outputs
11) (I am unsure, but I think it is) No, there is no inputs
12) No, because there is an input that has 2 outputs
Step-by-step explanation:
For functions, every input needs to have only one output
3-5(a-4) pls heeeeeeellllp
Answer:
-5a + 23
Step-by-step explanation:
Step 1: Distribute.
[tex]3 + (-5)(a)+(-5)(-4)[/tex] [tex]3 -5a + 20[/tex]Step 2: Combine like terms.
[tex](-5a)+(20+3)[/tex] [tex]-5a + 23[/tex]Therefore, the answer is -5a + 23.
Answer:
−5+23
Step-by-step explanation:
3-5+20
23-5
-5+23
Please solve the math problem... I will mark you brainliest
Answer:
Y = 58
X = 66
Step-by-step explanation:
So the markers mean that those sides of the triangle are congruent. Because of this, we know that the angles opposite from those sides are equal as well.
In the big triangle, Y will be equal to the empty angle. You can then use:
180 = 64 + 2*Y
Then, solving for Y, you get:
Y = (180-64)/2
Y = 58
You can use the same idea for the smaller triangle. The empty angle will be the same as the angle marked as 57.
180 = 57*2 + X
Then, solving for X, you get:
X = 180 - 57*2
X = 66
Express in the form n:1
Give n as a fully simplified fraction 20:15
If a number is divisible by 2 and by 3, what other number must it be divisible by?
Answer:
no
Step-by-step explanation:
L bozo
Which of the following illustrates the truth value of the given conditional statement?
p: 10 > 7
q: 10 > 5
Answer:
they are both right
Step-by-step explanation:
the truth value is that 10 is higher than 7 or 5 (not sure if this is what you needed)
Solve for each inequality.
8 ≤ x - (-14)
31 ≥ b - (-18)
-5 < n + (-1)
Answer:
[tex]8 \leqslant x - ( - 14) \\ 8 \leqslant x + 14 \\ 8 - 14 \leqslant x + 14 - 14 \\ - 6 \leqslant x \\ x \geqslant - 6[/tex]
___o__o__
[tex]31 \geqslant b - ( - 18) \\ 31 \geqslant b + 18 \\ 31 - 18 \geqslant b + 18 - 18 \\ 13 \geqslant b \\ b \leqslant 13[/tex]
__o__o__
[tex] - 5 < n + ( - 1) \\ - 5 < n - 1 \\ - 5 + 1 < n - 1 + 1 \\ \\ - 4 < n \\ n > - 4[/tex]
I hope I helped you^_^
What is the value of(-5) to the fourth power
Answer:
625
Step-by-step explanation:
[tex](-5)^4[/tex] [tex]-5 * -5 * -5 * -5[/tex] [tex]25* -5 * -5[/tex] [tex]-125 * -5[/tex] [tex]625[/tex]625 I believe. If u do -5(-5) that’s 25 bc there’s four -5’s you will be left with 25(25) with is 625
Use quadratic regression to find
the equation of the parabola
going through these 3 points.
(-1,23), (1,-5), (3,-57)
y = [ ? ]x2 + [ ]x+ [ ]
Enter
Based on the information given, the required equation of parabola will be y= -3x² - 14x + 12.
SolutionThe parabola passes through the points (-1, 23), (1, -5), (3, -57). Let the equation of the parabola be y = ax² + bx + c.
For point (-1, 23), this will be:
23 = a(-1)² + b(-1) + c
23 = a - b + c ..... equation i
For point (1, -5), this will be:
-5 = a(1)² + b(1) + c
-5 = a + b + c .... equation ii
For point (3, -57), this will be:
-57 = a(3)² + b(3) + c
-57 = 9a + 3b + c .... equation iii
From equation i, 23 = a - b + c
Therefore, c = 23 - a + b .... equation iv
Substitute c into equation ii
-5 = a + b + 23 - a + b
-5 = 2b + 23
2b = -23 - 5.
2b = -28
b = -28/2 = -14
Substitute c into equation iii
-57 = 9a + 3b + 23 - a + b
-80 = 8a + 4b.
-80 = 8a + 4(-14)
-80 = 8a - 56
8a = -80 + 56
8a = -24
a = -24/8 = -3
Therefore, the value of c will be:
c = 23 - a + b
c = 23 -(-3) + (-14)
c = 23 + 3 - 14
c = 12
In conclusion, the required equation of parabola will be y = -3x² - 14x + 12.
Learn more about equations on:
https://brainly.com/question/4148030
Joan can't quite read the board in her math class. She writes down the equation she reads on the
board as 3x – 7 = 38. She correctly solves the equation she wrote down, but is surprised to hear the
teacher say the answer is 6 less than the answer she found. When she asks the teacher to check her
work, the teacher says that Joan copied the coefficient of x incorrectly (but copied everything else
correctly). What should the coefficient of x have been?
Answer:
x = 15
Step-by-step explanation:
3x - 7 =38
3x = 38+7
3x = 45/3
x = 15
The correct coefficient of x is 5 and the correct equation is 5x-7=38.
What is an equation?In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.
The given equation is 3x-7=38.
Solution to given equation is
3x=38+7
3x=45
x=15
The teacher say the answer is 6 less than the answer she found.
Which is x=9
The teacher says that Joan copied the coefficient of x incorrectly
If equation is 5x-7=38
5(9)-7=38
38=38
Therefore, the correct coefficient of x is 5 and the correct equation is 5x-7=38.
To learn more about an equation visit:
https://brainly.com/question/14686792.
#SPJ2
Question 5 (1 point)
Which pair of numbers are both between 6 and 7 ?
42 and 48
36 and 49
30 and 42
137 and 50
Answer:
36 and 49
Step-by-step explanation:
Please mark me as brainlyest
Answer:
42 and 48
Step-by-step explanation:
since the square root of 42 is 6.48
and the square root of 48 is 6.92
Both of these numbers fall between 6 and 7
Does anyone know how to do this?
Please help ASAP
Tell me where to put the shovel on the bottom number line
Answer:
on 60!! Hope this help's
Step-by-step explanation:
x -4 1 6 11
y -3 -2 -1 0
Answer:
Step-by-step explanation:
Let's simplify step-by-step.
x−41611y−3−2−10
=x+−41611y+−3+−2+−10
Combine Like Terms:
=x+−41611y+−3+−2+−10
=(x)+(−41611y)+(−3+−2+−10)
=x+−41611y+−15
Answer:
=x−41611y−15
Find the mean of the data in the dot plot PLS WILL GIVE BRAINLIST NOT
Answer:
0.38 for anyone that saw my last answer it was wrong sorry
Complete the following conversions.
i) 1 mm = ?metres
Answer:
0.001 m
Step-by-step explanation:
1 m = 1000 mm
1 mm
= 1 / 1000
= 0.001 m
Answer Please!!
I will brainlist him/her
Answer:
11 : 4
12 : 4 / 4
13 : 6/6
14 : 12 / 4
15: 9/3
16: 4/4
17: 15/5
18: 6/2
19: 10/5
20: 6/6
Lisa used 1/4 cup of milk in her muffin recipe. How can you write 1/4 as a decimal
Answer:
0.25
Step-by-step explanation:
Answer: 0.25
Step-by-step explanation: take 100 divide by 2 get 50 so divide by 2 get 25 make 25 a decimal and u get 0.25 ( hope this helps!)
Given the vertex (2, -1 )and the point(0,7), write the vertex form equation of the
quadratic function
Pls help!!!
Answer:
f(x) = 2(x - 2)² - 1
Step-by-step explanation:
Given the vertex, (2, -1) and the point, (0, 7), we can plug these values into the vertex form of the quadratic function:
f(x) = a(x - h)² + h
where:
vertex = (h, k)
a = determines whether the graph opens up or down, and the wideness or narrowness of the parabola.
h = determines how far left or right the parent function is translated.
k = determines how far up or down the parent function is translated.
We could substitute the given values into the vertex form, and solve for the value of "a":
f(x) = a(x - h)² + h
7 = a(0 - 2)² - 1
7 = a(-2)² - 1
7 = a(4) - 1
Add 1 to both sides:
7 + 1 = a(4) - 1 + 1
8 = 4a
Divide both sides by 4 to solve for a:
8/4 = 4a/4
2 = a
Since a = 2, and the vertex = (2, -1) then we could plug this value into the given function:
f(x) = 2(x - 2)² -1
Attached is a screenshot of the graph where it contains the given points.
Please mark my answers as the Brainliest, if you find my explanations helpful :)
find the gcf of 24 and 36
Answer:
The GCF of 24 and 36 is 12
Step-by-step explanation:
will mark as brainliest plz help
Answer:
30 is answer bro
Step-by-step explanation:
hope it wI'll help u
Sorry dude, diagram not visible, send a clear pic so I will help uh.
Write The following sum as product 18+12=
Answer:
30
Step-by-step explanation:
i think it is the or you wrong
Use the figure below to answer the following questions.
What is m∠1?
60
30
90
120
Answer:
30
Step-by-step explanation:
1. The exterior angle theorem states that the two opposing (in terms of the exterior angle) interior angles of a triangle are congruent to the exterior angle. This means that m∠1 (x) + 90 = 120. Now, we just have to solve for x.
2. (Solving)
Step 1: Subtract 90 from both sides.
[tex]x + 90 = 120[/tex] [tex]x - 90 = 120 - 90[/tex] [tex]x = 30[/tex]Step 2: Check if solution is correct.
[tex]30 + 90 = 120[/tex] [tex]120 = 120[/tex]Therefore, m∠1 = 30 degrees.
Answer:
∠ 1 = 30°
Step-by-step explanation:
The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.
120° is the exterior angle of the left triangle , then
∠ 1 + 90° = 120° ( subtract 90° from both sides )
∠ 1 = 30°
Order least to greatest
-0.5, 1.25, - 5,0.5,
Answer:
Step-by-step explanation:
1.25, -0.5, -5.05
please help.......................
Answer:
Find the product of the exponents... The third v\choice is the answer which is C. Happy to Help :)
(W^c)^d = W^c•d
Brainlyist please!
Step-by-step explanation:
A duck dives underwater and its path is described by the quadratic function y = 2x^2 - 4x, where y represents the position of the duck in meters and x represents the time in seconds. How long was the duck underwater?
Solving the quadratic equation, it is found that the duck was underwater for two seconds.
The path of the duck after x seconds is modeled by:
[tex]y = 2x^2 - 4x[/tex]
It is a concave up parabola, thus, the negative values of y, when he is underwater, are between the roots.
To find the roots:
[tex]y = 0[/tex]
[tex]2x^2 - 4x = 0[/tex]
[tex]2x(x - 2) = 0[/tex]
[tex]2x = 0 \rightarrow x = 0[/tex]
[tex]x - 2 = 0 \rightarrow x = 2[/tex]
2 - 0 = 2, thus, the duck was underwater for two seconds.
A similar problem is given at https://brainly.com/question/25181401