2 years ago

Can someone help me

Mathematics

1 answer:

Artyom0805 [142]2 years ago

6 0

Answer:

Step-by-step explanation:

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F(x)x^2-x+3 find f(x+2)

ivolga24 [154]

Answer: =7

Step-by-step explanation:

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2 years ago

Betty bought a new dress for 30% off. The original price of the dress was 45 dollars. How much was the sale price?

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It'll Most Likely Be... C. $31.50

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3 years ago

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What is the coefficient of the third term in the binomial expansion of (a + b)6? 1 15 20 90

Sholpan [36]

Answer: 15

Step-by-step explanation:

(r+1)th term of $(a+b)^n$ is given by:-

$T_{r+1}=\ ^nC_r(a)^{n-r}b^r$

For $(a+b)^6$ , n= 6

$T_3=T_{2+1}=\ ^6C_2(a)^{6-2}(b)^2\\\\$

$=\ \dfrac{6!}{4!2!}a^4b^2\ \ \ [^nC_r=\dfrac{n!}{r!(n-r)!}]\\\\=\dfrac{6\times5\times4!}{4!\times2}a^4b^2\\\\=3\times5a^4b^2\\\\ =15a^4b^2$

Hence, the coefficient of the third term in the binomial expansion of $(a+b)^6$ is 15.

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3 years ago

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A random sample of 4000 U.S. citizens yielded 2150 who are in favor of outlawing cheesing. Find the point estimate for estimatin

Darina [25.2K]

Answer:

0.5375

Step-by-step explanation:

The point estimate of proportion of all Americans who are in favor of outlawing cheese can be computed as

p=x/n

Here. x is the number of favorable outcomes and n is sample size.

We are given that x=2150 and n=4000, So,

p=2150/4000

p=0.5375.

Thus, the point estimate of proportion of all Americans who are in favor of outlawing cheese is 0.5375.

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3 years ago

2/v + 2 = 9 solve for v

kenny6666 [7]

2/v+2=9
-2 -2
2/v=7
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V=14

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3 years ago

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