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Luda [366]
4 years ago
8

Choose one a. 7.8 ft b. 8.8 ft c. 8.3 ft d. 9.2 ft

Mathematics
1 answer:
Scrat [10]4 years ago
8 0

A =s^2    since the wall is square

78 =s^2

take the square root of each side

sqrt(78) = s

s=8.83 ft

Choice B

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HOW TO DO THIS QUESTION PLEASE ​
Doss [256]

9514 1404 393

Answer:

  £6/h

Step-by-step explanation:

Molly is paid £280 for 35 hours' work, so

  £280/(35 h) = £8/h

In the next 5 hours, her pay jumps to £350, so she earns at a rate of ...

  (£350 -280)/(5 h) = £70/(5 h) = £14/h

The difference in her pay rates is £14/h -£8/h = £6 per hour.

8 0
3 years ago
Pls help !! brainilist will be given !!
Anarel [89]

Answer: x = 6, Angle ABC = 45, Angle DBC = 34

Step-by-step explanation:

79 = (5x + 4) + (8x - 3)

79 = 13x + 1

78 = 13x

x = 6

8x - 3      plug in 6 for x

8(6) - 3

Angle ABC = 45

5x + 4     plug in 6 for x

5(6) + 4

Angle DBC = 34

7 0
3 years ago
A sample of 64 was taken from a population, with the mean of the sample being 119 and the standard deviation of the sample being
Fofino [41]
We have the sample size, sample mean and the sample standard deviation. Since the population standard deviation is not know, we will use t-distribution to find the confidence interval.

The critical t value for 95% confidence interval and 63 degrees of freedom is 1.998.

The 95% confidence for the population mean will be:

(119-1.998 *\frac{16}{ \sqrt{64} } ,119+1.998 *\frac{16}{ \sqrt{64} }) \\  \\ 
=(115.004, 122.996) \\ \\=(115,123)

Thus, the 95% confidence interval for the population mean will be (115,123)

So, option A is the correct answer
6 0
3 years ago
Plsss answer this rlly need dont answer this for just points plsss :(
klio [65]

1)V=Ixwxh

=5 cm x 3 cm x 2 cm

=30 cm³

2)V=bxh

=(10m x 6m) x 4m

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3)V=Ixwxh

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4 0
2 years ago
Help!!!! Please!!!!!
Lera25 [3.4K]

Answer:

An apple, potato, and onion all taste the same if you eat them with your nose plugged

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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