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maria [59]
3 years ago
11

Does anyone know how to do this?

Mathematics
2 answers:
Arte-miy333 [17]3 years ago
5 0

Answer:

71%

Step-by-step explanation:

She has 65% for 1st paper which have 120marks, we can calcule how marks she done:

120*0,65=78

On the 2nd pper she done:

80*0,80=64

The total marks was 120+80=200

She done 78+64=142

200—>100%

142—->x%

X=14200/200=71

Total procent score is 71%

Andrew [12]3 years ago
4 0

Answer:

Yes

Step-by-step explanati

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What must be added to x² + 6x²-x+ 5 to make it exact divisible by (x + 3)​
maxonik [38]

Let f(x) = x² + 6x²-x+ 5 then ,

number to be added be P

then,

f(x) = x² + 6x²-x+ 5 +P

According to the qn,

(x+3) is exactly divisible by zero then,

R=0

comparing .. we get a= -3

now by remainder theorm

R=f(a)

0=f(-3)

0=(-3)² + 6(-3)²-(-3)+ 5 + P

0= 9 + 54 + 3 + 5 + P

-71=P

therefore, -71 should be added.

Hope you understand

4 0
2 years ago
Divide 128 chairs among 3 rooms in the ratio of 1 : 3 : 4.​
Alex_Xolod [135]

Answer:

Step-by-step explanation:

1x+3x+4x= 128

8x=128

x=128/8

x=16

therefore,

room 1 = 1x

           = 1*16=16

room 2 = 3x

            =3*16=48

room 3 = 4x

            =4*16=64

PLS MARK BRAINLIEST, THNX

6 0
2 years ago
Unit 2 Functions Classwork - Homework Day 5 Piecewise Functions
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Which category do all of these shapes belong to
Nataly [62]

Answer:

squares

Step-by-step explanation:

4 0
3 years ago
Can someone please help I can’t understanddd.
dem82 [27]

Hello,

Dividing by 0 is not defined so let s take x different from 4 and -4 and then we can write:

As

f(x)=x^2-7x+12=x^2-4x-3x+12=x(x-4)-3(x-4)=(x-4)(x-3)\\ \\(f\times g)(x)=\dfrac{3(x-4)(x-3)}{(x-4)(x+4)}=\dfrac{3x-9}{x+4}

Thanks

6 0
3 years ago
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