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shusha [124]
3 years ago
11

Help!!!! help!!!! help!!!! help!!!! help!!!!

Mathematics
1 answer:
blagie [28]3 years ago
5 0

hola buenos días tío PEDRO de la Mari pero le

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For what values of x will the function f(x) = 3x² + 13x - 10 equal zero?
Oduvanchick [21]

Answer:

x = - 5 , x = \frac{2}{3}

Step-by-step explanation:

the values of x that make f(x) zero are the zeros

to find the zeros let f(x) = 0 , that is

3x² + 13x - 10 = 0

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

product = 3 × - 10 = - 30 and sum = + 13

the factors are + 15 and - 2

use these factors to split the x- term

3x² + 15x - 2x - 10 = 0 ( factor the first/second and third/fourth terms )

3x(x + 5) - 2(x + 5) = 0 ← factor out (x + 5) from each term

(x + 5)(3x - 2) = 0

equate each factor to zero and solve for x

x + 5 = 0 ⇒ x = - 5

3x - 2 = 0 ⇒ 3x = 2 ⇒ x = \frac{2}{3}

4 0
2 years ago
A runner finished a total of 1,500 kilometers in races before retiring . She finished thirty-two 15-kilometer races . The rest o
Sindrei [870]

Answer:

32*15 = 480

1500-480 = 1020

1020/10

102 races

Step-by-step explanation:

5 0
3 years ago
How would I simplify 2³x5 to the power of negative 5
ser-zykov [4K]
This is all middle school stuff.

First do the powers. 3 power plus -5 power equals to -2 power.

2 x 5 is 10. So, it's 10 to the power of -2.


6 0
3 years ago
Find the expression that represents the length of the hypotenuse of a right triangle whose legs measure 2x to the power of 2 - y
Irina-Kira [14]
First divide by 2 then excouleate by 1
3 0
3 years ago
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Question 13<br><br> cos(546) + abs(-78) = ?
tekilochka [14]

Answer: 78.803811326

Step-by-step

3 0
3 years ago
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