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djverab [1.8K]
3 years ago
12

Someone pls help me with this test i was in quorintine and missed a lot and the teacher is still making me take it.

Mathematics
1 answer:
earnstyle [38]3 years ago
3 0
In first question x=8, I’m too lazy to solve the rest
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What is the factored form of the expression 144x2 - 49?
PIT_PIT [208]

Answer:

A

Step-by-step explanation:

Difference of squares: (a^2 - b^2) = (a - b)(a + b)

(144x^2 - 49) = (12x - 7) (12x + 7)

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Hey! I would appreciate some help with this
arsen [322]

Answer:

...

Step-by-step explanation:

since they give us the side opposite of the given angle(Opposite) and we are trying to find for a (Adjacent/side), so we use TOA

tan(30)= \frac{4}{a}

i see u dont want it solved but ill solve it anyways

since a is on the bottom then lets switch them

x=\frac{4}{tan30}

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3 years ago
The cost of a bagel and a cup of coffee is $1.45. The cost of 3 bagels and a cup of coffee is $2.95. What is the cost of a cup o
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What is the slope of the line shown on the graph?
svet-max [94.6K]

I believe the answer is C -4

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3 years ago
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Factor the expression. Use the fundamental identities to simplify, if necessary.
Rasek [7]

Answer:

see explanation

Step-by-step explanation:

Using the trigonometric identity

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Given

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= - cos²x + 7cosx + 18 ← factor out - 1 from each term

= - (cos²x - 7cosx - 18)

Consider the factors of the constant term (- 18) which sum to give the coefficient of the cosx term (- 7)

The factors are - 9 and + 2, thus

= - (cosx - 9)(cosx + 2) ← in factored form

3 0
3 years ago
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