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Evgen [1.6K]
3 years ago
13

Find the value of x (3x-9) (x + 7)

Mathematics
1 answer:
laila [671]3 years ago
3 0

Answer:

x=-3 and x=-7

Step-by-step explanation:

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3/6 times 2/6. Please show step by step directions I NEED HELP ASAP
viva [34]

To solve, simply layout and equation.

3/6*2/6.

Step 1: Simply 3/6.

1/2*2/6

Step 2: Simplify 2/6.

1/2*1/3

Step 3: Multiply.

1/2*1/3

1/6.

So, the answer to this problem is 1/6.

7 0
3 years ago
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If f(x) = x2 – 2x + 3, then find<br> f(-3).
Georgia [21]

Answer:

f(-3) = 18

Step-by-step explanation:

We need just substitute x with (-3) and calculate it.

f(-3) = (-3)² -2*(-3) + 3 = 9 + 6 +3 = 18

7 0
3 years ago
In the interval 0 degrees &lt; x &lt; 360 degrees, find the values of x for which cos x = 0.7252. Give your answers to the neare
AleksandrR [38]

Answer:

115° and 245°

Step-by-step explanation:

Given

cos x = - 0.4226

Since cos x < 0 then x is an angle in the second / third quadrants, thus

x =  (0.4226) = 65° ← related acute angle , thus

x = 180° - 65° = 115° ← angle in second quadrant

x = 180° + 65° = 245° ← angle in third quadrant

6 0
3 years ago
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Super easy question just don’t know it
Doss [256]

Answer:

Integer

Step-by-step explanation:

6 0
3 years ago
Whenever you sign a lease for an apartment, you typically have to pay a security deposit before you even move in; this is in cas
likoan [24]
The answer is F(x) = 900x + 600

Let x stands for the number of months

The apartment is rented for $900 a month, so every month it will be paid 900x (for example, for one month (x = 1), you will pay 900 · 1 = $900, for three months (x = 5), you will pay 900 · 5 = $4500, etc.)

A security deposit is paid only once and is not dependent on the number of months. So, its value is only 600. 

These two values must be summed up because both must be paid, nothing is to subtract. Therefore, the function f(x) for  apartments that rent for $900 a month and a security deposit of $600 is:
f(x) = 900x + 600
7 0
3 years ago
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