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Bad White [126]

3 years ago

9

14. x 2 + 10x − 25 = 0

2 answers:

Natali [406]3 years ago

7 0

think about two numbers that will get 25:

think about two numbers that will get 10

use the 5 times tables

5*5= 25

Use 5+5= 10

x^2+10x-25= 0

(x+5)(x+5)= 0

x+5= 0 , x+5= 0

x+5-5= 0-5

x= -5

x+5-5= 0-5

x= -5

Answer :

only x= 5

Rasek [7]3 years ago

6 0

28+10x-25=0
3+10x=0
10x=-3
x=-0.3

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3 years ago

What is the value of x? Round to the nearest tenth. Please Help

Elodia [21]

Answer:

<h2>x = 6.5 cm</h2>

Step-by-step explanation:

The segment 20.2 cm is the tangent. Therefore x and 20.2cm are perpendicular.

Use the Pythagorean theorem:

$leg^2+leg^2=hypotenuse^2$

We have

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7 0

3 years ago

Two families go skiing on a Saturday. One family purchases three adult lift tickets and four lift tickets for $188. Another fami

Mnenie [13.5K]

Answer:using elimination to solve for x

9x +6y = 3*134 | Multiplying 1st equation by 3

-4x -6y = -2*146 | Multiplying 2nd equation by -2

5x = 3*134 - 2*146

5x = $110

x = $22, the cost of the youth ticket

Step-by-step explanation:This question Sets Up two equations with 2 unknowns

Let x and y represent the cost of the youth and adult ticket respectively

Question states***

3x + 2y = $134

2x + 3y = $146

7 0

3 years ago

Can someone help me with this question? Thank you!

Natali [406]

Answer:

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Step-by-step explanation:

22 is the largest number you are given in this diagram. 0 is the smallest. that would be your first step.

Next think about it as if you already know your midpoint, as in, midpoint being half of your ending value.

Lastly, you want to divide 22 in half, since midpoint is half of your line segment, and then answer you get is 11

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