9th grade math help me please and thank you sosomuch
Answer:
The system is consistent; it has one solution ⇒ D
Step-by-step explanation:
A consistent system of equations has at least one solution
The consistent independent system has exactly 1 solutionThe consistent dependent system has infinitely many solutionsAn inconsistent system has no solution
In the system of equations ax + by = c and dx + ey = f, if
a = d, b = e, and c = f, then the system is consistent dependent and has infinitely many solutionsa = d, b = e, and c ≠ f, then the system is inconsistent and has no solutiona ≠ d, and/or b ≠ e, and/or c ≠ f, then the system is consistent independent and has exactly one solutionIn the given system of equations
∵ -2y + 2x = 3 ⇒ (1)
∵ -5y + 5x = 12 ⇒ (2)
→ By comparing equations (1) and (2)
∵ -2 ≠ -5
∵ 2 ≠ 5
∵ 3 ≠ 12
→ By using the 3rd rule above
∴ The system is consistent independent and has exactly one solution
∴ The system is consistent; it has one solution
i’m stuck between these two i don’t know which one it is
Answer:
The answer is A.
Step-by-step explanation:
This is because the Triangle is being rotated counter clockwise 90 degrees, then reflected over the Y axis.
So, point (-6, 8) would become (-8, -6), and so forth.
y = 4 + 6x
Siope-interce
What linear equation form is this equation written in?
Answer:
We can write this equation in slope-intercept form
y
=
m
x
+
b
where
m
is the slope and
b
is the
y
-intercept.
We know
m
=
−
4
and
b
=
6
, so we can insert these into the equation to get
y
=
−
4
x
+
6
Hope this helps!
what is 1000000000 + 10000000000
Answer:
11,000,000,000
Step-by-step explanation:
there is one extra 0 at the end on the number on the right which puts it in the ten billions place instead of the billions place.
<3 Enjoy,
Dea
Please help! I'm not sure on what I do.
Answer:
slope= 6.25
Step-by-step explanation:
the slope represents the meters he travels per second
Answer:
The slope is 0.16
Step-by-step explanation:
You have the run over the rise as a slope equation.
x/y or 5/31.25
The answer to that will be the answer to all of them.
5/31.25=0.16
10/62.5=0.16
15/93.75= 0.16
The rate of change(or slope) is 0.16.
The slope represents time over distance(t/d or x/y) for Oren's 100-meter race.
The difference between the roots of the quadratic equation x2 -14x +q =0 is 6. Find q
9514 1404 393
Answer:
q = 40
Step-by-step explanation:
When the quadratic has roots p and r, it can be factored as ...
(x -p)(x -r) = x² -(p+r)x +pr
So, the sum of the roots is 14, and their difference is 6. This lets us find the roots from ...
p + r = 14
p - r = 6
2p = 20 . . . add the two equations
p = 10
r = 14 -p = 4
The value of interest is then ...
q = pr = (10)(4)
q = 40
__
The graph shows the roots to be 4 and 10, as we found.
I NEED HELP ASAP!!!!!! Pls show the work!!!!!
PLZ HELP THIS IS FRUSTRATING FOR BRAINLIST
10. A local
meteorologist
estimated 3.5 inches of
rain for the month of
April. The actual rainfall
was 5.8 inches. What
was the percent error of
the estimate to the
nearest tenth of a
percent?
Answer:
39.7%
Step-by-step explanation:
(actual value - estimated value) / actual value
5.8 - 3.5 = 2.3
2.3 / 5.8 = 0.3965 = 39.65%
If a circle has a radius of 25 feet, what is the same circles diameter?
5 feet
12.5 feet
50 feet
150 feet
Which matrix represents the system of equations shown?
Answer:
b.
by relation
[tex] \binom{3x \: \: - 2y \: \: 12}{4x \: \: \: \: - y \: \: \: \: \: 9} \\ eliminate \: the \: unknowns \: (x \: and \: y) \\ \binom{3 \: \: - 2 \: \: 12}{4 \: \: \: \: - 1 \: \: \: \: \: 9} [/tex]
Please help ill mark brainliest please, please, please
Answer: I think its (B) Reflection over the x-axis
Step-by-step explanation: Hope this helps!
Answer:
reflection over the x axis
Step-by-step explanation:
because the line that there reflecting over is the x axis line thats left to right, not y axis which is up and down
hope that helps, have a great day :>
Find the solution of this system of equations.
Separate the x- and y-values with a comma.
X – 10y = 2
x - y = 2
enter the correct answer
State the triangle congruence theorem that can be used to prove triangles congruent
SSS
SAS
AAS
ASA
HL
Cannot Be Determined
Answer:
AAS
Step-by-step explanation:
Answer:
Its D
Step-by-step explanation:
on edge
8/9 divided by -5/4?
Answer:
-32/45
Step-by-step explanation:
pls help me answer this it is due today sorry if it looks wierd if correct I'll make Brainliest!!!!
Answer:
D. y = 0.8x + 9.25
Step-by-step explanation:
The pizza parlor charges a flat rate of 9.25, this means that the value 9.25 is constant. The value 0.8 is a coefficient, meaning that is relevance in the equation is to be multiplied by the x value.
Answer
D hope this helps
The area of sector NMK is 7.8cm2. Find the radius of circle M.
Answer:
the radius should be 36
Step-by-step explanation:
Calculate the frequency of light that has a wavelength of
4.25 x 10^-9m and a velocity of 300 m/s.
Answer:
The velocity of light, v, is the product of its wavelength, λ , and its frequency, f. This means that the wavelength is the velocity, v, divided by the frequency, f.
Wavelength of light = velocity of light / frequency of light
λ = v/f
λ = Wavelength of light, meters
v = Velocity of light (c = 3.0 x 108 m, for speed of light if not otherwise defined)
f = frequency of light, Hz
Step-by-step explanation:
The table shows the volume V (in cubic feet) of a cube with a side length of x feet. Does the table represent a linear or nonlinear function? Explain your answer.
Answer:
Step-by-step explanation:Determine whether each table represents a linear or nonlinear function. ... Show. YOUY work. Nonlinear; as x increases by 1, y increases by a greater amount of ... A cube has a side length of s meters. ... (Example 4) Nonlinear; sample answer: If you graph the function, the ordered pairs (side length, volume) do not lie on a.
A bookstore costs $96 a day to keep open, and it spends $12 for each book that it sells. If each book sells for $18, what is the break-even point
for this bookstore?
Answer: The break even point is when they have sold 16 books and have made $288
Step-by-step explanation: The costs are modeled in the equation y = 12x + 96. x is the number of books sold.
The earnings are modeled by he equation y = 18x.
Substitute 18x for y and solve for x.
18x = 12x + 96 Subtract 12x from both sides.
6x = 96 Divide both sides by 6
x = 16
Substitute into the original equations to solve for y
y = 12(16) + 96
y = 192 + 96
Y = 288
y = 18(16)
y = 288
Answer:
C = 12n + 90
Step-by-step explanation:
Find the value of x*
Answer:
8502
Step-by-step explanation:
45930+34729+835029=347230
Simplify the expression: 2x + 1 + 7x
Answer: 9x+1
Step-by-step explanation:
2x+7x=9x
Answer:
9x+1
Step-by-step explanation:
2x+1+7xCombine like terms, 9x+1Someone please help me. Thanks!
Can someone help.me with this pls.....
Answer:
5/14
Step-by-step explanation:
To work this out, we simply need to divide 1 3/4 miles by 4 9/10 miles.
1 3/4 ÷ 4 9/10
Start by converting both terms to improper fractions:
(4/4 + 3/4) ÷ (40/10 + 9/10)
= 7/4 ÷ 49/10
To divide, we simply multiply by the reciprocal of the second fraction:
7/4 * 10/49
= 70 / 196
Now we can take out common factors of the 70 / 196
70 / 196
= (5 * 2 * 7) / (14 * 2 * 7)
= 5 / 14
So the straight section of the track is five fourteenths of the entire length.
PLEAEEEE HELP I have to submit this in 30mins!!!!!!!!!
Answer:
It should be Volume of water
A list contains 7 consecutive even numbers in ascending order.The largest number is 30 and the smallest is 12 less than this.The mode is 20 and median is 22.If the sum of the two remaining numbers is 50,find all the number
Answer:
18, 20, 20, 22, 24, 26, 30
Step-by-step explanation:
We know that the largest number of the list is 30 and the smallest number is 12 less than that, which is 30 - 12 = 18.
This is our list so far: 18, __ , __ , __ , __ , __ , 30
The median of a set is the middle number of the set. In this case, since there are 7 terms in the set, the median, which the problem states is 22, must be the 4th number, since the 4th number is in the middle.
This is our list now: 18, __ , __ , 22, __ , __ , 30
Now, let's deal with the mode. The mode of a set is the term that shows up the most. Since the set is in ascending order and 20 < 22, we know that the two numbers in between 18 and 22 must be 20 and 20. This means that no term can show up more than once, with the exception of 20 because it is the mode.
This is our list now: 18, 20, 20, 22, __ , __ , 30
Finally, we'll deal with the last two numbers. We know that they must be even and that they both must be in between 22 and 30 (since the set is in ascending order). We also know that the two numbers must be different (see last paragraph) and that they sum to 50. The only two numbers that satisfy all of these conditions are 24 and 26, so they must be our last two numbers.
Therefore, the answer is 18, 20, 20, 22, 24, 26, 30. Hope this helps!
what is the answer it is immpossible
Answer:
b
Step-by-step explanation:
not exactly "impossible" my good lad
Answer:
B
Step-by-step explanation:
of course, the even fractions are not irrational.
sqrt 16 is not irrational bc =4
so the answer is B, or sqrt 15
Brainiliest
Solve For x.
x
_ = 4
40
A) 16
B) 36
C) 160
D)176
Answer:
It would be 160 (C)
Step-by-step explanation:
160 is the only one that works if u rplace x with 160.
Answer:
160
This is how I got my answer I divided each answer by 4 to see if it equaled 40 and 160 divided by 4 equals 40 so 160 is your answer
Approximately what percent of the rectangle below is not shaded?
A 25%
B 50%
C 33%
D 67%
f(x)=4x 2 +6x−2 find f(-5)
Answer:
68
Step-by-step explanation: