3 years ago

X2+11x-26=0 X2 - 25 = 0

1 answer:

8 0

X² + 11x - 26 = 0
x² - 25 = 0

(x + 13)(x - 2) = 0
(x + 5)(x - 5) = 0

x = -13
x = 2
x = -5
x = 5

You might be interested in

Semmy [17]

There are 12 inches in a foot. When you convert 12 into millimeters, it becomes 304.8.

6 0

3 years ago

MakcuM [25]

75.09 = seventy- five and nine-hundredths

5 0

3 years ago

Romashka [77]

Answer: 34

Step-by-step explanation:

Substitute n with 9

-14+3(9-1)(2)

-14+3(8)(2)

= 34

7 0

2 years ago

Neko [114]

Answer:

28.3 feet

Step-by-step explanation:

Given a tree 41.8 feet tall casts a shadow that is 27 feet long

So the Tangent of the angle of the sahdow remains the same for the both trees.

We know that $Tanx=\frac{height of the tree}{length of the shadow}$

$\frac{height of the tree1}{length of the shadow1} = \frac{height of the tree2}{length of the shadow2}$

$\frac{41.8}{27} =\frac{x}{18.3}$

$x=\frac{41.8}{27}\times18.3 =28.3$

Therefore the height of the tree is 28.3 feet

6 0

3 years ago

Gnoma [55]

By 8. 20 percent of 40 is 8. :)

5 0

3 years ago