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Digiron [165]
3 years ago
9

Using appropriate properties, find −

Mathematics
1 answer:
Marysya12 [62]3 years ago
6 0

Answer:

what does it say

Step-by-step explanation:

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What is the 5th term of the expansion of (3x+y^4)^7
chubhunter [2.5K]

9514 1404 393

Answer:

  945x^3·y^16

Step-by-step explanation:

The 5th term will be ...

  C(7,4)(3x)^3(y^4)^4 = 35·27·x^3·y^(4·4)

  = 945x^3·y^16

_____

The coefficients of the expansion are C(n, k) where n is the exponent of the binomial, and k+1 is the term number. This is n!/(k!(n-k)!). The general (k-th) term of the expansion (a+b)^n is C(n, k)a^(n-k)b^(k) where k ranges from 0 to n.

8 0
3 years ago
A persons weekly wage is worked out by using the formula
LuckyWell [14K]
The formula is : #of overtime hours(h) *£16 + basic pay (b)
So, the easier way to put it is W=h*16+b

A: Wage= £284

A. W=h(9)*16+b(140)
=9*16+140
=144+140
=284

B: Overtime = 11
So, with this one, we work backwards
Using the same formula

W=h*16+b
We can fill in
300=16h+124

First, subtract 124 on both sides leaving

176=16h
Now we divide 16 on both sides, canceling out the right side
Leaving
11=h

8 0
3 years ago
Find the slope of the line shown on the graph to the right (-4,-3) and (2,3)
DerKrebs [107]

Answer:

y=x+1

Step-by-step explanation:

to do this we have to use the slope formula, Rise/Run which is (y2-y1)/(x2-x1) so (3-(-3) or 3+3 divided by (2-(-4) or 2+4, so the slope would be 6/6 or 1. so it is up one over one, and since at the x coordinate of 0 it is y=1 we know the formula must be y=x+1

5 0
3 years ago
Read 2 more answers
2x + 3y = 40<br>5x + 2y = 30​
Andrew [12]

●✴︎✴︎✴︎✴︎✴︎✴︎✴︎✴︎❀✴︎✴︎✴︎✴︎✴︎✴︎✴︎✴︎✴︎●

          Hi my lil bunny!

❧⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯☙

A) Let's solve for x.  2x + 3y = 40

Step 1: Add -3y to both sides.

2x + 3y + -3y = 40 + -3y

2x = -3y + 40

Step 2: Divide both sides by 2.

\frac{2x}{2} = \frac{-3y + 40}{2}

x = \frac{-3}{2} y + 20

Answer : \frac{-3}{2} y + 20

~~~~~~~~~~~~~~~~~

B) Let's solve for x. 5x + 2y = 30

Step 1: Add -2y to both sides.

5x + 2y + -2y = 30 + -2y

5x = -2y + 30

Step 2: Divide both sides by 5.

\frac{5x}{5} = \frac{-2y + 30}{5}

x = \frac{-2}{5} y + 6

Answer : \frac{-2}{5} y + 6

❧⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯☙

●✴︎✴︎✴︎✴︎✴︎✴︎✴︎✴︎❀✴︎✴︎✴︎✴︎✴︎✴︎✴︎✴︎✴︎●

Hope this helped you.

Could you maybe give brainliest..?

❀*May*❀

7 0
4 years ago
Read 2 more answers
Convert 2,464 yards into miles. round your answer to the nearest tenth. hint: there are 1,760 yards in a mile.
PolarNik [594]
2464yard*1mile/1760yards
=1.4miles

4 0
3 years ago
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