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Dafna1 [17]
2 years ago
11

Solve pls brainliest

Mathematics
2 answers:
umka2103 [35]2 years ago
7 0

Answer:

A would be 9 and I am not sure about B.

Step-by-step explanation:

when a number is in | | these lines then they will always come out positive.

Andreyy892 years ago
3 0

Answer:

1. 9

2. 5

Step-by-step explanation:

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The answer to this question is "B)$126" The hourly pay is 21$
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A ladder is leaning against the top of
Dafna11 [192]

Answer:

Step-by-step explanation:

Discussion

You are working with the Cosine of the angle.

Hypotenuse = 12.5

Base = 3

Theta = ?

Solution

Cos(theta) = base / hypotenuse         Substitute values

Cos(theta) = 3 / 12.5                            Divide  

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katrin2010 [14]

Answer:5/2a + 10/3b

Step-by-step explanation:

(1/6)(15a+20b)

=(1/6)(15a)+(1/6)(20b)

6 0
2 years ago
The algebra tiles represent the perfect square trinomial x2 10x c. what is the value of c? c =
devlian [24]

The value of c for which the considered trinomial becomes perfect square trinomial is: 20 or -20

<h3>What are perfect squares trinomials?</h3>

They are those expressions which are found by squaring binomial expressions.

Since the given trinomials are with degree 2, thus, if they are perfect square, the binomial which was used to make them must be linear.

Let the binomial term was ax + b(a linear expression is always writable in this form where a and b are constants and m is a variable), then we will obtain:

(ax + b)^2 = a^2x^2 + b^2 + 2abx

Comparing this expression with the expression we're provided with:

x^2 + 10x + c

we see that:

a^2 = 1 \implies a = \pm 1\\b^2 = 10\\b = \pm 10\\2ab = c\\\pm2(10)1 = c\\c = \pm 20\\

Thus, the value of c for which the considered trinomial becomes perfect square trinomial is: 20 or -20

Learn more about perfect square trinomials here:

brainly.com/question/88561

6 0
1 year ago
Solve each system by substitution <br><br> 4y - 6 = 2x<br> y- 3x=9
ArbitrLikvidat [17]
X = -3, y = 0 i think
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3 years ago
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