Given the quadratic function, to get the roots we factorize:
3x²-4x-7=0

3x²+3x-7x-7=0
3x(x+1)-7(x+1)=0
(3x-7)(x+1)=0
thus the roots are
x=-1 or x=3/7
thus the sum of the roots will be:
-1+3/7
=-4/7

6 0

3 years ago

How much sugar syrup would you get by Making 5% sugar syrup using 6g sugar?

kherson [118]

Answer: 120 grams.

Step-by-step explanation:

Let x be the amount of sugar syrup made by 5% sugar syrup using 6g sugar.

Also, 5% =0.05

Therefore, 5% sugar syrup =5% of x = 0.05x

According to the question, we have

$0.05x=6\\\text{Divide 0.05 on the both sides we get}\\\Rightarrow\ x=\frac{6}{0.05}\\\Rightarrow\ x=\frac{600}{5}\\\Rightarrow\ x=120$

Hence, 120 grams sugar syrup is made by 5% sugar syrup of 6g sugar.

5 0

3 years ago

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6[4 x (5 + 4) – 3]<br> ITS TIMED

Damm [24]

Answer:

198

Step-by-step explanation:

Parentheses

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5 0

3 years ago

What is the answer? 3rd time posting. <br> Worth 15 points.<br> Explain

Gekata [30.6K]

KCC
7 units 7-4=3 (-9)-(-5)=
-9+5=(-4)
3+(-4)= 7

4 0

3 years ago

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