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Ostrovityanka [42]
3 years ago
6

4t2–40t+84 factorise quadratics

Mathematics
2 answers:
Evgen [1.6K]3 years ago
6 0

Answer:

4( t - 7) ( t - 3 )

Step-by-step explanation:

4t² - 40t + 84

4(t² - 10t + 21)

4( t - 7) ( t - 3 )

Viktor [21]3 years ago
5 0

Answer:

4(t − 3)(t − 7)

Step-by-step explanation:

4(t–3)(t–7)

4(t2–3t–7t+21)

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A building society offers a rate of 11% per annum simple interest. Beth-Ann deposit 24000 in the society for 15 months. Calculat
Nostrana [21]

Answer:

The amount of money due to Beth-Ann at the end of this period​ is $27, 300.

Step-by-step explanation:

The amount at the end of a period, when simple interest is being charged is:

Amount (A) = Principal (P) + Interest (I)

Here interest is computed using the formula:

I=P\times R\times T

It is provided that:

P = 24,000

R = 11%

T = 15 months = 1.25 years

Compute the Interest as follows:

I=P\times R\times T

  =24000\times 0.11\times 1.25\\=3300

The interest earned is, <em>I</em> = $3,300.

Compute the amount of money due to Beth-Ann at the end of this period​ as follows:

A=P+I

   =24000+3300\\=27300

Thus, the amount of money due to Beth-Ann at the end of this period​ is $27, 300.

7 0
3 years ago
How to do I do solving systems of equations by elimination
Andre45 [30]
If you have two equations, you will multiply one of them so it cancels out the other one. For Example, 2x-y=16        3x-y=28You will multiply the second equation by -1 which brings us to 2x-y=16    -3x+y=-28you will add both equations together which will leave you with-x=-12x=12Then, you plug that in. 2x12=24.    24-16=8.    3x12=36     36-8=28    And, You're done!
7 0
3 years ago
A number increased by 7
postnew [5]

Answer:

x+7

Step-by-step explanation:

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Seth bought a 12 ounce jar of peanut butter for $ 3.60. What is the unit price?
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Answer:

30

Step-by-step explanation:

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3 years ago
What is the answer? I don’t understand how to get it.
miss Akunina [59]

Answer:

A.

Step-by-step explanation:

Sub in the (x,y) points given into the equation to see if true ....you'll find A is the answer

Example  point (3,95 )      95 =  -10.375 (3) + 126.125    ??  

                                           95 = 95     Check !

               then try the other point ( 11,12) to be sure ....

             

5 0
1 year ago
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