Answer: 8x^2 -4x -7
Step-by-step explanation: the x^2 term comes first, followed by the x, then the constant which in this case is -7
so it would be 8x^2 -4x -7
The polynomial -7 + 8x² - 4x written in descending order is 8x² - 4x - 7.
To write the polynomial -7 + 8x² - 4x in descending order, we arrange the terms from highest degree to lowest degree.
Here's how to do it step by step:
Step 1: Identify the degree of each term:
The term -7 has a degree of 0 (since it is a constant).
The term 8x² has a degree of 2 (since it has a variable raised to the power of 2).
The term -4x has a degree of 1 (since it has a variable raised to the power of 1).
Step 2: Arrange the terms in descending order based on their degrees:
Start with the term with the highest degree and proceed in decreasing order. In this case, we have only three terms, so we start with the highest degree term:
8x² (degree 2)
Next, we consider the next highest degree term:
-4x (degree 1)
Finally, we have the constant term:
-7 (degree 0)
Step 3: Write the polynomial in descending order:
Putting the terms together in descending order, we have:
8x² - 4x - 7
So, the polynomial -7 + 8x² - 4x written in descending order is 8x² - 4x - 7.
Learn more about polynomials in descending order click;
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What is the value of x in the equation 1.5(x + 4) – 3 = 4.5(x – 2)?
Step-by-step explanation:
1.5x + 6-3= 4.5x- 2
1.5x+3=4.5x-2
we transposed
4.5x-1.5x= 3+2
3x= 5
we divide both sides by 3
3x/3= 5/3
x= 5/3
Can someone help me do this
Answer:
71 degrees
Step-by-step explanation:
It is quite hard to see the question but I believe we are looking for the unknown angle E (correct me if I am wrong and I will revise my answer!)
Can someone help!!! I've been stuck on this for a while
A fence is 7 feet 6 inches high.
1 foot=12 inches
What is the height of the fence in centimetres?
Answer:
228.6 centimeters
Step-by-step explanation:
We remember that 1 inch is 2.54 centimeters.
We also know that 7 feet 6 inches is equal to 7*12+6 inches, which equals 90 inches.
So, 7 feet 6 inches is 90 inches is [tex]\boxed{228.6}[/tex] centimeters.
fully simplify (2x+y)^2
Answer:
4
2
+
4
+
2
Step-by-step explanation:
solve for k.
k(4r−5)≥12r−9
Answer:
[tex]k = \frac{12r - 9}{4r - 5} \\ [/tex]
Step-by-step explanation:
[tex]k(4r - 5) \geqslant 12r - 9 \\ k = \frac{12r - 9}{4r - 5} \\ [/tex]
824 is between which two numbers ?
Answer:
823 and 825
Step-by-step explanation: i doubt this is what you meant but be more specific
factorise B square minus 25
Answer: (b+5)(b-5)
Step-by-step explanation:
both b^2 and 25 are square numbers, so square root both of them to give b and 5, then put into brackets with a + and -
Help please!! i will give brainliest
Answer:
[tex]for \: - 1 \leqslant x < 1 \: y = - 3 \\ for \: \: 1 \leqslant x < 3 \: \: y = 1 \\ for \: 3 \leqslant x \leqslant 5 \: y = 5[/tex]
A plant splits into 2 new plants each week. How many plants will you have after 6 weeks?
Answer:
The answer is 12
Step-by-step explanation
6x2
Just multiply 6 by 12
Look at the angle. Which description is true
Answer:
The angle is greater than 90 degrees, which is also known as an obtuse angle.
Help with this please
Answer: B
Step-by-step explanation: u have to simplify the 36 and the 12
what is equivalent to x^4-12x^2+36
Answer: x^4-12x^2+36
Step-by-step explanation:
If Susie takes a test with 50
questions and gets of them
5
correct, how many questions did
she miss?
PLS HELP WILL MARK AS BRAINLIEST
Answer:
26. the y intercept is -6
27. the y intercept is 2
28. the y intercept is -3
29. I cant answer because it is cut off in the picture...
Step-by-step explanation:
These equations follow a simple formula- the slope formula
y=mx+b
In this formula:
b is the y intercept
m is the slope that is multiplied by x
hope this helps:)
please crown me brainliest!!!
Quadratic shifted left by
1 unit vertical stretch by a
factor of 1.
Answer:
1(x+1)^2
Step-by-step explanation:
For the function f(x) whose graph is shown below, what is the value of f(5)?
We want to look at the given graph to estimate the value of f(5). We found that: f(5) = 2
In the coordinate axis, we can see a blue curve, which represents the function f(x).
To find the value of f(5), first, we need to locate the value x = 5 on the horizontal axis.
Once we find it, we need to move vertically until we meet the curve.
Once we meet the curve, we move horizontally until we meet the vertical axis, that intersection gives the value of the function when evaluated in x = 5.
By this method we can see that: f(5) = 2
If you want to learn more, you can read:
https://brainly.com/question/17267403
Which fractions are equivalent to
62/10
Answer:
31/5
Step-by-step explanation:
Divide both the numerator and denominator by 2.
Mia solved the equation 4x - 8 = 2(2x-4) and ended up with -8 = -8. what does this mean?
a) one solution
b) many solutions
c) no solutions
d) she did it wrong
Answer:
D
Step-by-step explanation:
She should have ended up with 4x-8= 4x-8
When you put everything on the proper side everything cancels out
someone help me im trying not to fail this year-
Answer:
x-y=-3
Step-by-step explanation:
What is the measure of the supplement of each angle 117º
Answer:
The supplementary angle of 117° :
= 180° – 117°
= 63°
This year, the girl scouts sold 2 more than four times as boxes of cookies as they did last year. This year they sold 402 boxes.
How many boxes did they sell last year?
Answer:
100
Step-by-step explanation:
they sold 2 more that 4 times as many, so subtract two
402-2=400
then divide by four
400/4=100
Hope this helps!
Write an equation in slope-intercept form for the line that has a slope of
4
and passes through (0, 7).
5
Answer:
D. y = -4/5x + 7
Step-by-step explanation:
y = -4/5x + b
7 = -4/5(0) + b
7 = 0 + b
7 = b
An exploring ship is pulling up a diver at the rate of 25 feet per minute. The diver is currently 100 feet below sea level. How deep was the diver 15 minutes ago?
Solve the system of equations: 2x + 5y = -1 and 3x - y = 7
A. х = 7, y=6
B. x = 2, y = -1
C. X = 2, y = 1
D. None of the above
Answer:
B.) is correct answer .....
I think it is right..
I think it is right..Please make me brainliest..
After two years, the ash tree grew 51 inches. How much does it grow each year? How tall is in in 5 years? Use the double number line to find your answer.
Answer: 25.5 inches per year, in 5 years it will be 127.5 inches.
Step-by-step explanation:
it grows 25.5 inches every year, so the math for this is 25.5 x 5
(5 representing the years) and you get an answer of 127.5in.
Renting a kayak costs $10 per hour. renting a canoe cost $5 per hour plus a $7 fee. Which equation could be used to determine h, the number of hours for which they each cost the same ?
Please help me!!! Will give brainliest!
3x° + 36° = 156° (since alternate interior angles are equal)
3x° = 120 °
x = 40
2. Ms. De Los Santos bought 5 3/7 gallons of ice cream for the 6th grade Wakanda Day celebration. If each scholar is served 1/16 gallon of ice cream, what is the greatest number of scholars that can be served?
A ratio is a _______________ of two quantities.
Answer: Comparision
A ratio is a comparison of two quantities.
, Hope this helps :)
Have a great day!!
Answer:
a comparison of two quantities by division.