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Elenna [48]
3 years ago
7

1a + 2a = answer and i will mark you brainliest

Mathematics
1 answer:
scZoUnD [109]3 years ago
7 0

Answer:

4a

Step-by-step explanation:

a and a =1 + 2+1= 4a

Im not that smart so im prob wrong

if i am wrong then its 3a ;(

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Sammy's Sandwich Shop has a mean delivery time of 25 minutes with a standard deviation of 2 minutes. Determine the z-score for t
Jlenok [28]

Answer:the z score is - 1

Step-by-step explanation:

Assuming a normal distribution for the delivery time of sandwiches by Sammy's Sandwich Shop. We would apply the formula for normal distribution which is expressed as

z = (x - u)/s

Where

x = delivery times

u = mean delivery time

s = standard deviation

From the information given,

u = 25 minutes

s = 2 minutes

We want to determine the z-score for the number of sandwiches delivered in less than 23 minutes. It becomes

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3 years ago
Select all the roots of the following equation.
strojnjashka [21]

Answer:

5, -9

Step-by-step explanation:

(x - 5)(x + 9) = 0    These are factors, to get the roots, just set each one equal to zero

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x = -9

6 0
3 years ago
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What is the volume of the triangular prism prism? <br> 8cm<br> 13cm<br> 3cm
Vika [28.1K]

Answer:

156 cm3

If the length is 8cm and the base is 13cm and the prism height is 3cm

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3 years ago
Arlene had 1/3 as many goldfish as Isabelle. Isabelle has 5 times as many goldfish as Bruce. If Bruce had 18 goldfish, how many
kvv77 [185]

Answer: 30 goldfish

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3 years ago
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OverLord2011 [107]

Answer:

5.0

Step-by-step explanation:

1÷2=2.5

1=2.50×2

=5.0

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