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jek_recluse [69]
3 years ago
7

The espression 4x^2-4x-120 is equivalent to?

Mathematics
1 answer:
Vadim26 [7]3 years ago
5 0
Glad you know how to use the ^ feature :) it helps alot!

Answer: <span><span>4<span>(<span>x<span>−6</span></span>)</span></span><span>(<span>x+5</span>) </span></span>
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Simplify. <br><br> √25 - √40 ?<br> help please.
melomori [17]

Answer:

5-2√10

Step-by-step explanation:

5-2√10

break them down

√25=5

so 5-√40

then simplify

5-2√10

7 0
4 years ago
Read 2 more answers
Pls help I’m failing I’ll add<br> Extra points <br> Is it rational or irrational show ur work
Vladimir79 [104]

Answer: below :p

Step-by-step explanation:

First problem is irrational since square roots are part of the irrational group.

Second problem is rational since the decimal is repetitive or repeating in an infinite 363636.

8 0
3 years ago
Determine whether you would use the Law of Sines or the Law of Cosines to solve each triangle. Do not solve the triangle.
Andrej [43]

A triangle is a three-edged polygon with three vertices. Only the law of Sine can be applied to solve the triangle.

<h3>What is a triangle?</h3>

A triangle is a three-edged polygon with three vertices. It is a fundamental form in geometry. The sum of all the angles of a triangle is always equal to 180°.

The sum of all three angles can be written as,

118° + 22° + x = 180°

x = 40°

For the sine rule to be applicable, two angles and a side or an angle and two sides are needed. Therefore, the law of Sine can be applied to solve the triangle.

For the cosine rule to be applicable, two sides and an angle between them is needed to be known, hence, the law of cosine can not be applied.

Hence, Only the law of Sine can be applied to solve the triangle.

Learn more about Triangle:

brainly.com/question/2773823

#SPJ1

6 0
2 years ago
Which of the following is a proportion? (Image)
Ganezh [65]

Answer:

the second one

Step-by-step explanation:

6 0
2 years ago
Use sigma notation to represent the following series for the first 10 terms. 3+ (-6) +12+(-24)
pshichka [43]

Answer: - 1023

Step-by-step explanation:

Given

Sequence is 3+(-6)+12+(-24)...

The following sequence is a geometric series with common ratio r=-2

first term a=3

Sum=\sum _{i=1}^{n}ar^{n-1}=\dfrac{a(1-r^n)}{1-r}

Sum=\sum _{i=1}^{n}3(-2)^{n-1}=\dfrac{3(1-(2)^10)}{1+2}

Sum=\sum _{i=1}^{n}3(-2)^{n-1}=-1023

5 0
3 years ago
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