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ValentinkaMS [17]
3 years ago
8

Can somebody please help me? thank-you :)

Mathematics
1 answer:
NeTakaya3 years ago
8 0

Answer:

i dont know how to do this but brainly keeps bothering me so im sorry

Step-by-step explanation:

...

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PLEASE HELP ITS TIMED<br> Order the rational numbers from least to greatest <br> -2/5,-4/3, -1/2, -1
IgorC [24]

Answer:

-2/5, -1/2, -1, -4/3

Step-by-step explanation:

7 0
3 years ago
The mean work week for engineers in start-up companies is claimed to be about 64 hours with a standard deviation of 8 hours. Kar
blondinia [14]

Answer:

1.) mean

2.) H0 : μ = 64

3.) 0.0028

4) Yes

Step-by-step explanation:

Null hypothesis ; H0 : μ = 64

Alternative hypothesis ; H1 : μ < 64

From the data Given :

70; 45; 55; 60; 65; 55; 55; 60; 50; 55

Using calculator :

Xbar = 57

Sample size, n = 10

Standard deviation, s = 7.14

Test statistic :

(xbar - μ) ÷ s/sqrt(n)

(57 - 64) ÷ 8 / sqrt(10)

Test statistic = - 2.77

Pvalue = (Z < - 2.77) = 0.0028 ( Z probability calculator)

α = 10% = 0.1

Reject H0 ; if P < α

Here,

P < α ; Hence, we reject the null

6 0
3 years ago
Choose the best graph that represents the linear equation: -2y = x + 6 Graph A On a coordinate plane, a line goes through (negat
Aleksandr-060686 [28]

Answer:

i think its A

Step-by-step explanation:

divide both sides by -2 which makes the y int -3 and A has a negative slope

6 0
3 years ago
Which amount is larger and by how much?
Solnce55 [7]

Answer:

a*(1 -0.5)*(1 +0.5) = 0.75a . . . . the original number "a" is larger

(a/(0.75a) -1) * 100% = 33 1/3% . . . . the original number is larger by 33 1/3% of the revised number

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
In a repeating musical part of their are 56 beats in 7 measures how many measures are there in 104 beats
Georgia [21]

Answer:

13

Step-by-step explanation:

104×7=728

728÷56=13

5 0
4 years ago
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