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3 years ago

What else would need to be congruent to show that ABC= A DEF by SAS?

Mathematics

1 answer:

Doss [256]3 years ago

3 0

Answer:

Step-by-step explanation:

BC ≅ EF

BC needs to be congruent to EF to show that ΔABC ≅ ΔDEF by SAS<em><u>(Side -Angle-Side)</u></em> Postulate.

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Using the completing-the-square method, rewrite f(x) = x2 − 8x + 3 in vertex form. f(x) = (x − 8)2 f(x) = (x − 4)2 − 13 f(x) = (

S_A_V [24]

Answer:

f(x) = (x - 4)² - 13

Step-by-step explanation:

Given

f(x) = x² - 8x + 3

To complete the square

add/subtract ( half the coefficient of the x- term )² to x² - 8x

f(x) = x² + 2(- 4)x + 16 - 16 + 3 = (x - 4)² - 13

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4 years ago

Read 2 more answers

Direct mail advertisers send solicitations ("junk mail") to thousands of potential customers in the hope that some will buy the

Arte-miy333 [17]

Answer:

The 90% confidence interval for the percentage of people the company contacts who may buy something is between 10.82% and 14%

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

For this problem, we have that:

$n = 1160, \pi = \frac{144}{1160} = 0.1241$

90% confidence level

So $\alpha = 0.1$ , z is the value of Z that has a pvalue of $1 - \frac{0.1}{2} = 0.95$ , so $Z = 1.645$ .

The lower limit of this interval is:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.1241 - 1.645\sqrt{\frac{0.1241*0.8759}{1160}} = 0.1082$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.1241 + 1.645\sqrt{\frac{0.1241*0.8759}{1160}} = 0.14$

The 90% confidence interval for the percentage of people the company contacts who may buy something is between 10.82% and 14%

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3 years ago

The coordinates of point A are (−3, 5). What are the coordinates of point B, which is a reflection of point A across the x‑axis?

a_sh-v [17]

Answer:

(-3, -5)

Step-by-step explanation:

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3 years ago

Eight bungee cord for $10 or 20 bungee cords for $20

ICE Princess25 [194]

20 bungee cords for $10

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3 years ago

A recipe calls for 8 oz of raisins. The raisins come 100-gram packages. How many packages do you need to buy?(1 oz is about 28.4

Strike441 [17]

You would need to buy 3 because you need 227.2 grams of raisins and that’s 3 bags

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3 years ago