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Debora [2.8K]
4 years ago
15

If csc x° = five fourths, what is the value of b? triangle LMN in which angle M measures 90 degrees, angle L measures x degrees,

LN measures 22.5 units, and NM measures 3b units b = 4 b = 5 b = 6 b = 7

Mathematics
1 answer:
Allushta [10]4 years ago
5 0

Answer:

b=6

Step-by-step explanation:

csc(x°) = LN/NM

5/4 = 22.5/(3b)

b = 22.5·4/(5·3)

b  = 6

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zhannawk [14.2K]
<h3>We know that :</h3>
  • a = 6
  • b = 2
  • h = 3

<h3>Asked :</h3>

A = …?

<h3>Solution :</h3>

A = ½ (a + b) × h

A = ½ (6 + 2) × 3

A = ½ (8) × 3

A = 4 × 3

A = <u>12</u> square units.

6 0
3 years ago
A student answered 86 problems on a test correctly and received a grade 78%, how many problems were on the test, if all the prob
malfutka [58]
86:x=78:100
78x=8600
x=110

8 0
3 years ago
A ^-56<br> a^72 a^2<br><br><br> i need help now
AlekseyPX

Answer:

a to the -56th power, a to the 72nd power, and a squared.

Step-by-step explanation:

4 0
4 years ago
Kylie explained that (negative 4 x 9) squared will result in a difference of squares because (negative 4 x 9) squared = (negativ
JulijaS [17]

A perfect square trinomial is the result in algebraic form which is obtained by solving the squared binomial expression. Kylie did not understand that this is a perfect square trinomial and she did not determine the product correctly. Thus the option C is the correct option.

Given information-

The expression for the given problem is,

(-4x+9)^2

<h3>Perfect square trinomial</h3>

A perfect square trinomial is the result in algebraic form which is obtained by solving the squared binomial expression.

The perfect square trinomial can be given as,

ax^2+bx+c

The given expression can be solved as,

(-4x+9)^2=(-4x+9)\times(-4x+9)\\(-4x+9)^2=-4x(-4x+9)+9(-4x+9)\\(-4x+9)^2=16x^2-36x-36x+81\\(-4x+9)^2=16x^2-72x+81

Hence Kylie did not understand that this is a perfect square trinomial and she did not determine the product correctly. Thus the option C is the correct option.

Learn more about the perfect square trinomial here;

brainly.com/question/88561

3 0
3 years ago
Which of the following is equivalent to 3^(-8)3^(4)<br> 3^-32<br> 3^-12<br> 3^-2<br> 3^-4
kaheart [24]

Answer:

goodluck btw

Step-by-step explanation:

i just need points so thats why i am answering

8 0
3 years ago
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