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Veronika [31]
3 years ago
13

Help lol i need gthe answer to this everytime i do it i get it wrong

Mathematics
1 answer:
netineya [11]3 years ago
7 0

Answer:

B

Step-by-step explanation:

You need the equation to equal 0

4x²-5=3x+4 Subtract 4 and 3x from both sides

4x²-5-4-3x

4x²-3x-9

a=4    b=-3    c=-9

(-b±√(b²-4ac))/2a

(-(-3)±√-3²-4(4)(-9))   /   (2(4)

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Hello I need help to past this test on math:
PIT_PIT [208]

All of the choices (1 , 2 , 3 and 4) are correct

3 0
3 years ago
Read 2 more answers
A taxi journey of 30km cost $3,600.At the same rate per kilometer .A what would be the cost of travelling 25k.B.How far could yo
madreJ [45]

Answer:

The cost of traveling 25km would be $3000.

You can travel 35 km for $4200.

Step-by-step explanation:

Consider the provided information.

For 30km cost $3,600.

30 km = $3600

Divide both sides by 30.

\frac{30}{30}\text{ km}=\frac{3600}{30}

1 \text{ km} =120 ....(1)

The cost of 1 km is $120.

Part (A) what would be the cost of traveling 25km

Multiply both the sides of equation 1 by 25.

25 km = 3000

Hence, the cost of traveling 25km would be $3000.

Part(B) How far could you travel for $4,200?

Divide 4200 by 120.

\frac{4200}{120}=35

Hence, you can travel 35 km for $4200.

7 0
3 years ago
A person has body fat percentage of 17.2% and weighs 171 pound how many pounds of her weight is made up of fat
Citrus2011 [14]

Answer: 29.41 pounds

Step-by-step explanation:

You have the following information given in the problem:

- The fat percentage that the person has is 17.2%

- The person weighs 171 pounds.

Therefore, to calculate the amount of pounds of her weight is made up of fat (which you can call x), you must multiply the weight of the person by the fat percentage.

Therefore, you obtain the following result:

x=171lb*0.172\\x=29.41lb

5 0
4 years ago
What is the factored form of the following expression?<br> x^2-10xy+21y^2
valentinak56 [21]
The answer would be (x-3y) (x-7y)
You have to group them together
4 0
3 years ago
PLS ANSWER ASAP!!!
Mashcka [7]

Calculator display for \frac{9}{12}  = 0.75

calculator display for \frac{5}{12} = 0.41667

Calculator display for \frac{7}{12} = 0.5833

Step-by-step explanation:

Calculator display for \frac{9}{12} is 0.75

Yes , it is the exact decimal equivalent.

\frac{9}{12} = 0.75

9 ÷ 12

=3 ÷ 4

= (3 × 25) ÷( 4 × 25)

         = 75 ÷ 100

         = 0.75

calculator display for \frac{5}{12} = 0.41667

\frac{5}{12} = 0.41667

It is not the exact decimal equivalent.

5 ÷ 12 = (5 × 8.35) ÷ ( 12 × 8.35)

        = 41.75 ÷ 100.2

         = 0.41667

Calculator display for \frac{7}{12} = 0.5833

It is not the exact decimal equivalent.

7 ÷ 12 = ( 7 × 8.35) ÷ ( 12 × 8.35)

          = 58.45 ÷ 100.2

          = 0.5833

8 0
4 years ago
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