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sergeinik [125]
3 years ago
15

Another question I'm stuck on

Mathematics
1 answer:
qwelly [4]3 years ago
7 0
M=(y2-y1)/(x2-x1) m=(-4-4)/(3-1) m=-8/2 m=-4 so the answer should be first one
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Identify the 34th term of the arithmetic sequence 2, 7, 12
torisob [31]
The equation is AN=A1+D(N-1) A1 being the first number (2) D being the difference (in this case 5) and N being the nth term to find (34) so here you have AN=2+5(34-1) then AN=2+5(33). the answer here is 167.
5 0
3 years ago
Help me please! which bisects the chord?
8_murik_8 [283]

Answer:

B. 3

Step-by-step explanation:

Since you are given that chord AB's length is 8 and is bisected by segment XC, that means segment BC's length is 4 and ∠XCB is a right angle. From there, we use Pythagorean Theorem to solve for length XC:

4² + b² = 5² (Or remember 3-4-5 makes a Pythagorean triple)

c = √(5²-4²)

c = 3

6 0
3 years ago
Customers arrive at a movie theater at the advertised movie time only to find that they have to sit through several previews and
sergij07 [2.7K]

Answer:

a) sample size is 40

Step-by-step explanation:

(a)

\sigma=4 minutes

Margin of error, E is 75 seconds E=75/60= 1.25 minutes.

The level of significance \alpha= 0.05 for 95% level of significance

For 95% confidence interval z_{\frac{\alpha}{2}}=1.96 from standard deviation table

Sample size required, n

n=\left (\frac{z_{\frac{\alpha}{2}}\cdot \sigma}{E} \right )^{2}=\left (\frac{1.96\cdot4}{75/60} \right )^{2}=39.337984

Rounding off, n=40

Sample size =40

Keywords:

95% confidence, sample size, Wall Street Journal

3 0
3 years ago
I have no clue what the answer is​
spin [16.1K]

Answer:

Second option is the correct answer.

Step-by-step explanation:

\frac{2}{3} x - 5 > 3 \\  \\  \frac{2}{3} x  >  5 + 3\\  \\  \frac{2}{3} x  >  8 \\  \\ x > 8 \times  \frac{3}{2}  \\  \\ x > 12

7 0
2 years ago
What single decimal multiplier would you use to decrease by 19% followed by a 17% decrease?
krok68 [10]

Answer:

0.81 & 0.83

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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