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agasfer [191]
3 years ago
11

Factorise 3a2 (squared) - 7a What’s the answer? Don’t use the calculator.

Mathematics
1 answer:
sweet-ann [11.9K]3 years ago
5 0

Step-by-step explanation:

{3a}^{2}  - 7a \\ a(3a - 7) \\  \\  \\  \\  \\  \\ hope \: it \: helps \\ stay \: safe \: healthy \: and \: happy

You might be interested in
Two possible floor plans for a new bathroom are shown.
Neko [114]

Answer:

Hope it works for u

Step-by-step explanation:

As we have given two shapes bathroom

square and rectangle

Parameter of square= sum of all the sides   ( : In square all sides are equal

Parameter of square= 4*L  = 4*(x+3)       (:L=x+3

similarly,

In rectangle opposites sides  are equal hence

Perimeter of rectangle= 2*length+2*width  ( : length=x+4,width can't be seen clearly so I assume and take it width=x+1  hope this is equal to the width of ur question otherwise do the calculation by ur self).

Perimeter of rectangle= 2*(x+4)+2(x+1)

so now we have to find the value of "x" for which both perimeter are equal, so

perimeter of square= perimeter of rectangle

4*(x+3)=2*(x+4)+2(x+1)  we can also write as

<h2>2(x+3)+2(x+3)=2(x+4)+2(x+1)</h2><h3>This is the linear equation required</h3><h3>now to find value of "x"</h3><h3>simplify both sides, we get</h3><h3>4x+12=4x+10</h3><h2>0≠2 so that not true and also there is no value of "x"</h2>

for which both parameters become equal

<h2>so from my side "b" option is correct</h2>

Please brain-list it if u find it help-full it requires effort!

7 0
3 years ago
Read 2 more answers
Together, Bob and Tom take 2 hours to get the yard work done. If Bob works alone, it takes him 6 hours. How long would it take T
gladu [14]
<span>It would take him three hours</span>
3 0
3 years ago
helpppppppppppppppppppppppppppppppppppppppppp please see this question and answer ittttttttttttt thank you!!!!!!!!!!!!!!!!!!!!!!
Over [174]
Letter B is correct.
The dots are the test scores and they follow the linear line.
5 0
3 years ago
2.) What amount presently must be invested earning 5.25% compounded continuously
julsineya [31]

The amount A resulting from a principal amount P being invested at rate r compounded continuously for time t is given by

... A = P·e^(rt)


FIll in your given values and solve for P.

... 25000 = P·e^(0.0525·12) = P·e^0.63

... P = 25000/e^0.63 ≈ 13314.80 . . . . . divide by the coefficient of P


The amount that must be invested is $13,314.80.

5 0
3 years ago
Read 2 more answers
HELP ASAP
4vir4ik [10]

Answer:

1. 45

2. 24

3. 32

Step-by-step explanation:

One

Ashley= 3/4 * Steve

Ashley= 3/4 * 60

Ashley = 180/4

Ashley =   45

Two

60% of 40

60/100 * 40

2400/100 = 24

Three

40% 80 = 40/100 * 80 = 3200 / 100 = 32

5 0
3 years ago
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