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german
3 years ago
6

8x^2-18x-5 Help please

Mathematics
2 answers:
uysha [10]3 years ago
8 0

Answer:

9.2

Step-by-step explanation:

8x^2-18x-5

64x-18x-5

46x=5

9.2

mark brainliest please

MakcuM [25]3 years ago
4 0

Answer:

(4x + 1)(2x - 5)

Step-by-step explanation:

To factor 8x² - 18x - 5

Consider the factors of the product of the x² term and the constant term which sum to give the coefficient of the x- term.

product = 8 × - 5 = - 40, sum = - 18

The factors are + 2 and - 20

Use these factors to split the x- term, that is

8x² + 2x - 20x - 5 ( factor the first/second and third/fourth terms )

= 2x(4x + 1) - 5(4x + 1) ← factor out (4x + 1)

= (4x + 1)(2x - 5) ← in factored form

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Answer:1500

Step-by-step explanation: so i got the anwser 1539.2 and just rounded to the nearest hundredth which is 1500 hopefully it helps!

5 0
3 years ago
Plesae urgent hurryy for brainlist !!!!!!!!!!!
kirill [66]
C, or 5000(0.9)t is correct.

Multiplying by 0.1 would not make the car’s price go down by ten percent, but 90. Hence, C is correct.


Hope this helps!
5 0
2 years ago
A bag of marbles has 6 red marbles and 7 green marbles in it. What is the percent probability of pulling a green marble out of t
soldi70 [24.7K]

Answer:

If a bag contains 4 red marbles, 3 blue marbles, and 7 green marbles and a marble is randomly selected from the bag, what is the probability that it is blue? P=3/(3+4+7)=3/14 because each of 14 marbles is equally likely to be drawn.

Step-by-step explanation:

7 0
3 years ago
The midpoint of segment AB is (4, 2). The coordinates of point A are (2, 7). Find the coordinates of point B.
erastovalidia [21]

Answer:

<h3>The option B) is correct</h3><h3>Therefore the coordinate of B(x_2,y_2) is (6,-3)</h3>

Step-by-step explanation:

Given that the midpoint of segment AB is (4, 2). The coordinates of point A is (2, 7).

<h3>To Find the coordinates of point B:</h3>
  • Let the coordinate of A be (x_1,y_1) is (2,7) respectively
  • Let the coordinate of B be (x_2,y_2)
  • And Let M(x,y) be the mid point of line segment AB is (4,2) respectively
  • The mid-point formula is
<h3>M(x,y)=(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})</h3>
  • Now substitute the coordinates int he above formula we get
  • (4,2)=(\frac{2+x_2}{2},\frac{7+y_2}{2})
  • Now equating we get

4=\frac{2+x_2}{2}                    2=\frac{7+y_2}{2}

Multiply by 2 we get                             Multiply by 2 we get  

4(2)=2+x_2                                           2(2)=7+y_2

8=2+x_2                                                4=7+y_2

Subtracting 2 on both

the sides                                    Subtracting 7 on both the sides

8-2=2+x_2-2                                4-7=7+y_2-7

6=x_2                                                       -3=y_2

Rewritting the above equation      Rewritting the equation

x_2=6                                                      y_2=-3

<h3>Therefore the coordinate of B(x_2,y_2) is (6,-3)</h3><h3>Therefore the option B) is correct.</h3>

7 0
3 years ago
Please help me out with this
tekilochka [14]
Yes they are similar
7 0
2 years ago
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