3 years ago

W2 – 2w Complete square to make perfect square trinomial

Mathematics

1 answer:

ziro4ka [17]3 years ago

7 0

Answer:

Step-by-step explanation:

(a - b)² = a² - 2ab + b²

We have

w² - 2w = w² - 2(w)(1)

We must add 1²

w² - 2(w)(1) + 1² = (w - 1)²

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Using 50 observations, the following regression output is obtained from estimating y = β0 + β1x + β2d1 + β3d2 + ε. Coefficients

pickupchik [31]

Answer:

The answer is "789.03 and 806.16".

Step-by-step explanation:

$y\^ \ \ = -0.45 + 3.78(x) -11.88(d_1) + 5.25(d_2)$

For point a:

Calculating the value for $y\^ \ \ x = 212,\ \ d_1 = 1, and \ \ d_2 = 0$

$y\^ = -0.45 + 3.78(212) -11.88(1) + 5.25(0)$

$= -0.45 + 801.36 -11.88 + 0\\\\= 789.03$

For point b:

Calculating the value of $y\^ \ \ for \ \ x = 212, \ \ d_1 = 0, and \ \ d_2 = 1$

$y\^ = -0.45 + 3.78(212) -11.88(0) + 5.25(1)$

$= -0.45 + 801.36 -0 + 5.25\\\\= 806.16$

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3 years ago

Staci has 7 more cats than Taylor. Write an expression that illustrates how many cats Staci has. use x to represent the number o

jasenka [17]

Taylor=T Staci=S
T=x S=x+7

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4 years ago

Will give brainly if correct

LuckyWell [14K]

Answer: The answer is <u>7 1/3</u>

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3 years ago

Barbara has 7 swimsuits. She needs to take 4 swimsuits on a vacation. In how many different ways can she choose 4 swimsuits out

levacccp [35]

You should use here the formula for combinations

$C_n^k=\dfrac{n!}{k!(n-k)!}.$

In your case n=7, k=4, then

$C_7^4=\dfrac{7!}{4!(7-4)!}=\dfrac{7!}{4!\cdot 3!}=\dfrac{4!\cdot 5\cdot 6\cdot 7}{4!\cdot 2\cdot 3}=5\cdot 7=35.$

Answer: 35 ways, option A.

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3 years ago

-2j =-90<br><br><br> Answer:<br> j = ?<br><br> Answer the ? Mark pls

sleet_krkn [62]

Answer:

j = 45

Step-by-step explanation:

-2j =-90

Divide each side by -2

-2j/-2 = -90/-2

j = 45

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3 years ago

Read 2 more answers