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3 years ago

These are A and B the other was C and D

Mathematics

2 answers:

Svet_ta [14]3 years ago

8 0

Answer:

wheres the question part i can't give an answer if I don't know whats its asking

ss7ja [257]3 years ago

5 0

WHAT IS THE QUESTION?

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I need the answers to this please

DerKrebs [107]

Answer:

From top to bottom

-4

I haven't done slope in a while but if I'm correct its one

Step-by-step explanation:

6 0

2 years ago

Need help with this question

enot [183]

The ice cream will cost $4.50. Substitute 5 in for x and simplify.
2 + 0.5(5) = 4.50

3 0

3 years ago

An SRS of 450 450 high school seniors gained an average of ¯ x = 20 x¯=20 points in their second attempt at the SAT Mathematics

maria [59]

Answer: (15.47, 24.53)

Step-by-step explanation:

We know that the confidence interval for population mean is given by :_

$\overline{x}\pm z^*\dfrac{\sigma}{\sqrt{n}}$

, where n= sample size.

$\sigma$ = standard deviation.

$\overline{x}$ = sample mean.

z*= Critical value.

Given : n= 450

$\overline{x}=20$

$\sigma=49$

Critical value for 95% confidence = z*=1.96 [From z-value table]

Then, the 95% confidence interval will be :-

$20\pm (1.96)\dfrac{49}{\sqrt{450}}$

$\approx 20\pm (1.96)(2.31)$

$\approx 20\pm 4.53$

$=(20-4.53,\ 20+4.53)=(15.47,\ 24.53)$

Hence, the 95% confidence interval for the mean change in score μ μ in the population of all high school seniors. : (15.47, 24.53)

3 0

3 years ago

CLEAR HIGHLIGHTING

Tasya [4]

Yikes I think 3 or 6

7 0

2 years ago

2 3 (0, 3) and (3, 0) (-2,-5) and (3, 0) 0 (-1,0) and (3, 0)

Murljashka [212]

Answer:

Note that the line has a y-intercept at (0, 2), with slope m=1 m = 1 . Example 6: Find the equation of the line passing through (−1, 3) and (5, 1). Solution: First, find m, the slope. Given two points, use the slope formula

4 0

3 years ago