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BlackZzzverrR [31]

3 years ago

10

PLZ ANSWER IF U KNOW THE ANSWER!

1 answer:

Firdavs [7]3 years ago

6 0

I believe a reflection in the x-axis.

If you would to count the number of squares until you hit the y-axis, they would be the same, which means that you are looking at a reflection across the x-axis, for example F and L are 1 unit separated starting from the y-axis, and K and E are 8 units starting from the y-axis, meaning that is a reflection across the x-axis

Hope this helps :).

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The quotient of a number and 2 is the same as the difference of the number double and 3. What’s is the numer

Brums [2.3K]

$\dfrac{x}{2}=2x-3\\ x=4x-6\\ 3x=6\\ x=2$

8 0

4 years ago

Solve: 3x^2+16x+5=0

ExtremeBDS [4]

Answer:

(3x+1)(x+5)

Step-by-step explanation:

Sorry for my handwriting lol hope this makes sense

6 0

3 years ago

Construct the confidence interval for the population standard deviation for the given values. Round your answers to one decimal

Alex777 [14]

Answer:

The correct answer is " $2.633< \sigma < 4.480$ ".

Step-by-step explanation:

Given:

n = 21

s = 3.3

c = 0.9

now,

$df = n-1$

$=20$

⇒ $x^2_{\frac{\alpha}{2}, n-1 }$ = $x^2_{\frac{0.9}{2}, 21-1 }$

= $31.410$

⇒ $x^2_{1-\frac{\alpha}{2}, n-1 }$ = $10.851$

hence,

The 90% Confidence interval will be:

= $\sqrt{\frac{(n-1)s^2}{x^2_{\frac{\alpha}{2}, n-1 }} } < \sigma < \sqrt{\frac{(n-1)s^2}{x^2_{1-\frac{\alpha}{2}, n-1 }}$

= $\sqrt{\frac{(21-1)3.3^2}{31.410} } < \sigma < \sqrt{\frac{(21.1)3.3^2}{10.851} }$

= $\sqrt{\frac{20\times 3.3^2}{31.410} } < \sigma < \sqrt{\frac{20\times 3.3^2}{10.851} }$

= $2.633< \sigma < 4.480$

4 0

3 years ago

can someone tell me if the left side is right? if not whats the correct way? also help me with the right side please :/

const2013 [10]

Answer:

Right: Y=52

Left: X=19

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

What are the slope and y-intercept of the graph of this equation?

schepotkina [342]

Answer:

slope = y = 1/2

y-intercept = b = -3

Step-by-step explanation:

slope intercept equation:

y = mx + b----->(equation 1)

m is slope

b is y-intercept

y = 1/2x - 3----->(equation 2)

Compare (equation 1) and (equation 1)

slope = y = 1/2

y-intercept = b = -3

3 0

3 years ago