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bazaltina [42]
3 years ago
10

Factorise the following. x²-4​

Mathematics
1 answer:
slava [35]3 years ago
7 0

(x-2)(x+2) is factorize is given eq

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A particular plant root grows 3.5 inches per month. How many centimeters is the plant root growing per month? (1 inch = 2.54 cen
Alexxandr [17]
It's very easy!!! 3.5*2.54=8.89 cm
6 0
3 years ago
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What’s the correct answer
madam [21]
I believe it would be the 2 last one
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3 years ago
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A manufacturer of household washing machines wants to determine the effectiveness of the type of detergent used (three brands –
ololo11 [35]

Answer:

Two-Factor ANOVA with replication

Step-by-step explanation:

Types of detergent used ( A,B,C ) = 3

Length of time for the washing cycle : A = 18 mins, B = 20 mins, C = 22 mins

number of laundry loads = 18

significance level = 5%

The alternative hypothesis for testing the interaction is a Two-Factor ANOVA with replication this is because the factors that have variations are the : The type of detergent and the length of time for a washing cycle while the load is constant for all.

5 0
3 years ago
After 45 seconds, Camden’s bathtub fills with 3 inches of water. How many seconds will it take to fill Camden’s tub with 20 inch
Pepsi [2]
So you have to find how many seconds it takes to fill up with 1 inch.
TO find that, you have to divide 45/3 which equals to 15.
So it takes 15 seconds for 1 inch. The question is asking you to find out how many seconds will it take to fill the tub with 20 inches.
SO your gonna multiply 15*20.
15*20 = 300
So it would take 300 seconds to fill up Camden's tub.


5 0
3 years ago
I need help on this can you help me
miskamm [114]
Phil had 2 quarters, 1 dime and 3 pennies = 63 cents
Paul had 2 nickles = 10 cents

Total 63 + 10 = 73 cents

If Paul had 1 cent more than Phil, then Paul would have 37 cents and Phil would have 36 cents
but Paul had 10 cents 
10 cents + 27 cents = 37 cents

so 
1 quarter and 2 pennies Phil gave to Paul, total 27 cents

Answer

Phi gave Paul 1 quarter and 2 pennies.
3 0
3 years ago
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