True or False:

1 answer:

4 0

The answer is False

A Perfect Square Trinomial should be in the form of this:

$a^{2} + 2ab + b^{2}$

The following, $100x^{2} -10xy+ y^{2}$ , definitely does not follow the rule given and, therefore, is not a Perfect Square Trinomial.

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Use substitution to solve the following system of equations. 9x + 5y = 32 AND y = -3x + 4

Darya [45]

Answer:

x = -2

y = 10

Step-by-step explanation:

Since they already gave y as -3x +4, you will then have to substitute that amount into the formula

9x + 5y = 32

By doing that you get

9x +5(-3x+4) = 32

9x -15x +20 = 32

Then, you ill take 20 to the other side to subtract 32, which will get you

-6x = 12

Then, you will get x = -2

Then substitute that for the equation

y = -3x + 4

You will get

y = -3(-2) + 4,

You will get y as 10

SO then your final answer is x = -2, y = 10

4 0

2 years ago

-1<9+n<17 i don't understand how to solve it

Ugo [173]

-1<9+n<17

-1-9<n<17-9

-10<n<8

6 0

2 years ago

Exercise

svp [43]

By addition of all the exercise and substracting it from 1 hourJavier runs on treadmill on Monday is 0.40 hour.

Now According to the question javier completed 3 repetitions of each exercise so by multiplication time taken by javier to complete each exercise is as follow;

Squats = 0.8*3= 0.24 hour

Crunches = 0.03*3 = 0.09 hour

Lunges = 0.04*3 = 0.12 hour

curls = 0.05*3 = 0.15 hour

we can calculate total time taken to complete all exercise by Addition is,

0.24 + 0.09 + 0.12 + 0.15

0.60 hour

time taken on treadmill by javier;

1 hour - 0.60 hour

0.40 hour

Read more about Addition here:

brainly.com/question/20658817