2 years ago

Which of the following are solutions to the equation below (5x+1)^2=7? Check all that apply.

Mathematics

2 answers:

Dahasolnce [82]2 years ago

8 0

Answer:C E (apex) !!

Step-by-step explanation:

stiv31 [10]2 years ago

4 0

(5x+1)² = 7; expand: 25x² + 10x +1 = 7 or 25x² + 10x -6 = 0

Solve this quadratic for x:

x = [-b + √(b² - 4ac)]/2a and x = [-b - √(b² - 4ac)]/2a
Plug the values and you'll find :
x = (- √7 - 1)/5 (answer C)
x = (+√7 -1)/5 (answer E)

You might be interested in

AB and CD are parallel find the value of y<br> Show clearly how you got your answers with reasons

Zina [86]

Answer:

y = 167°

Step-by-step explanation:

The vertex of the triangle = 154° ( alternate angle to 154° )

The triangle has 2 equal legs so is isosceles with 2 base angles congruent

base angle = $\frac{180-154}{2}$ = $\frac{26}{2}$ = 13°

base angle and y are adjacent angles, lie on straight line AB and sum to 180°

y + 13° = 180° ( subtract 13° from both sides )

y = 167°

5 0

2 years ago

Find f(3) if f(n) = 3n.<br> 1/3<br> 01<br> 03

GaryK [48]

Answer:

this is correct beacuse of the four in the back of the number six

Step-by-step explanation:

6 0

2 years ago

A company makes 100 bags. 32 of the bags have buttons but no zips. 32 of the bags have zips but no buttons. 35 of the bags have

elena-14-01-66 [18.8K]

Answer:

Step-by-step explanation:

6 0

3 years ago

Eli is following this recipe to bake bread rolls.

lakkis [162]

Answer:

640g flour

16g salt

12g yeast

60ml oil

Step-by-step explanation:

300 x (4/3) = 400

so multiply all by 4/3

7 0

2 years ago

Need this quick ! Correct answers appreciated

ludmilkaskok [199]

5

g(f(-5))
g( | 2 * -5 + 9 | )
g( |-1| )
g(1)
5

4 0

1 year ago