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GenaCL600 [577]
3 years ago
15

What is the SAS postulate

Mathematics
1 answer:
horsena [70]3 years ago
3 0

Answer:

Side-Angle-Side

If we can show that two sides and the included angle of one triangle are congruent to two sides and the included angle in a second triangle, then the two triangles are congruent. This is called the Side Angle Side Postulate or SAS.

Step-by-step explanation:

Research

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Pam wants to buy a DVD player. The original price is $50. What is the sale price? with a 90% off
qaws [65]

Answer:

5 dollars

Step-by-step explanation:

If the price is 90 % off, we will pay 100 - 90 or 10 %

Take the original price times 10 %

50 * 10 %

50 * .10

5

5 0
3 years ago
In a group of 54 children, there are twice as many boys as girls how many girls are there
vlabodo [156]
2x + x = 54   wher x = number of girls

3x = 54 
x = 18 

18 girls

7 0
3 years ago
Mr. Bond’s class wanted to estimate the mean mass of Snickers Fun Size bars. They randomly selected 74 bars and recorded the mas
AleksAgata [21]

Step 1: Find the standard error (SE)

The standard error is given by

SE=\frac{s}{\sqrt[]{n}}\begin{gathered} \text{ Where } \\ SE=\text{ the standard error} \\ s=\text{ the sample standard deviation} \\ n=\text{ the sample size} \end{gathered}

In this case,

n=74,s=0.76

Therefore,

SE=\frac{0.76}{\sqrt[]{74}}\approx0.0883

Step 2: Find the alpha level (α)

\alpha=1-\frac{(\text{Confidence level})}{100}\alpha=1-0.99=0.01

Step 3: Find the critical probability (P*)

P^{\prime}=1-\frac{\alpha}{2}

Therefore,

P^{\cdot}=1-\frac{0.01}{2}=0.995

Step 4: Find the critical value (CV)

The critical value the z-score having a cumulative probability equal to the critical probability (P*).

Using the cumulative z-score table we will find the z-score with value of 0.995

Hence,

CV=2.576

Step 5: Find the margin of error (ME)

ME=SE\times CV

Therefore,

ME=0.0883\times2.576=0.2275

Step 6: Find the confidence interval (CI)

\begin{gathered} CI\text{ is given by} \\ CI=(\bar{x}-ME,\bar{x}+ME) \\ \text{ In this case} \\ \bar{x}=17.1 \end{gathered}

Therefore,

CI=(17.1-0.2275,17.1+0.2275)=(16.8725,17.3275)

Hence there is a 99% probability that the true mean will lie in the confidence interval

(16.8725, 17.3275)

4 0
1 year ago
What is the standard form of the equation of the circle x2 -4x + y2 + 6y + 12 = 0?
Rashid [163]
We take the equation
                            <span>x^2 -4x + y^2 + 6y + 12 = 0
and complete the square for x and y.
                             </span><span>x^2 -4x + 4 - 4 + y^2 + 6y + 9 - 9 + 12= 0</span>
<span>                                            (x-2)^2 - 4 + (y+3)^2 - 9 = -12</span>
<span>                                                       <span>(x-2)^2+ (y+3)^2  = 1
Therefore the answer is </span></span><span>(x-2)^2+ (y+3)^2  = 1</span>
4 0
3 years ago
Help shawty’s i’m stressin
Brums [2.3K]

Answer:

A dilation is a type of transformation that changes the size of the image. The scale factor, measures how much larger or smaller the image is. Each type of dilation (one that gets larger and one that gets smaller).

Step-by-step explanation:

I don't know if this'll be enough help, but it's a brief definition.  

7 0
3 years ago
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