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3 years ago

Can I have some help

Mathematics

1 answer:

Brums [2.3K]3 years ago

6 0

$\frac{100}{40} = \frac{z + 69}{z} \\ 100z = 40z + 2760 \\ 60z = 2760 \\ z = 46$

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What is the coeffieent of (x^4)(y^4) in the expansion of (x+y)^8

kap26 [50]

ANSWER

The coefficient is 70.

EXPLANATION

The given binomial expression is

$(x+y)^8$

The specific term of a binomial expansion can be determined using the formula,

$T_{r+1}= nC_ra^{n-r}b^r$
where

$n=8,r=4,a=x,b=y$

We substitute these values into the formula to get,

$T_{4+1}= 8C_4x^{8-4}y^4$

We simplify to get,

$T_{5}= 70x^{4}y^4$

Hence the coefficient is 70.

4 0

2 years ago

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laiz [17]

Answer:

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Step-by-step explanation:

5 0

2 years ago

2+2+2+2+2+2+2+206+737472

taurus [48]

Answer:

737714

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8 0

2 years ago

Read 2 more answers

Help please!!!!!!!!!!!!!

kaheart [24]

Answer:

Step-by-step explanation:

6x3=18

8-3=5

6+1=7

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I hope this helps!

5 0

2 years ago

The average cost of tuition and room and board at a small private liberal arts college is reported to be $8,500 per term, but a

Tom [10]

Answer:

H₀: µ ≤ $8,500; H₁: µ > $8,500

z= +1.645

Step-by-step explanation:

From the given problem As average cost of tuition and room and board at a small private liberal is less than the financial administrator As hypothesis is true.

As standard deviation is $ 1,200

α = 0.05

H₀: µ ≤ $8,500

if the null hypothesis is true then value for critical z is +1.645.

6 0

2 years ago