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Marianna [84]
4 years ago
10

If C(x) = 4x^2 - 3, find the following (a) C(0) (b) C (-1) (c) C (-2) (d) C (-3/2)

Mathematics
1 answer:
NeTakaya4 years ago
3 0

Step-by-step explanation:

C(x)=4x^2-3\\\\C(0),\ C(-1),\ C(-2),\ C\left(-\dfrac{3}{2}\right)\\\\\text{Substitute each value}\ \left\{0, -1, -2, -\frac{3}{2}\right\}\ \text{instead}\ C(x):\\\\C(0)=4(0^2)-3=4(0)-3=0-3=-3\\\\C(-1)=4(-1)^2-3=4(1)-3=4-3=1\\\\C(-2)=4(-2)^2-3=4(4)-3=16-3=13\\\\C\left(-\dfrac{3}{2}\right)=4\left(-\dfrac{3}{2}\right)^2-3=4\left(\dfrac{9}{4}\right)-3=9-3=6

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I really need help on this thi g is hard
Katarina [22]

Answer:

B

Step-by-step explanation:

A division between two roots that have the same index can be rewritten as a division between the two terms with a unic root

\sqrt{7x^2/3x} = \sqrt{7x/3}

5 0
3 years ago
List the components in the proportion relationship used to find missing value in scale drawing?
Phoenix [80]
<h2>Explanation:</h2><h2></h2>

When we have relationships between two variables and their ratios are equivalent, we call this as proportional relationship. A scale drawing is a model that has been reduced or enlarged from its original size. Suppose you have a horse that measures 1,5m high by 2m long and want to draw a reduced model by a scale factor of 1:10, then your drawing will measure:

Height=1.5(1/10)=0.15m \\ \\ Length=2(1/10)=0.2m

So the components are:

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3 0
4 years ago
Aiko is finding the sum (4 + 5i) + (–3 + 7i). She rewrites the sum as (–3 + 7)i + (4 + 5)i. Which statement explains the mathema
yan [13]
In this item, it can be seen that from an expression of,
                                  (4 + 5i) + (-3 + 7i)
Aiko transformed the equation by factoring out the i's from the expression and wrote it as,
                                   (4 + 5)i + (-3 + 7)i
Now this is wrong because i there is not a variable but a notation that 5 and 7 are imaginary numbers. In fact, she cannot factor out the i's because it is not present in both -3 and 4. The answer therefore to this item is the last sentence, "Aiko incorrectly used the distributive property by combining ..."
4 0
3 years ago
Read 2 more answers
Need help with easy multiplication math problem. <br> Show work please
Andrew [12]

Solving 5^5.5^{-12} we get \frac{1}{78125}

Step-by-step explanation:

We need to solve: 5^5.5^{-12}

It can be solved using the exponent rule. If bases are same, then the exponents are added. i.e a^m.a^n=a^{m+n}

Applying exponent rule:

5^5.5^{-12}\\=5^{5-12}\\=5^{-7}\\

Another exponent rule says: a^{-1} =\frac{1}{a}

So,

5^{-7}\\=\frac{1}{5^7}\\=\frac{1}{78125}

So, solving 5^5.5^{-12} we get \frac{1}{78125}

Keywords: Exponents

Learn more about learning exponents at:

  • brainly.com/question/4934417
  • brainly.com/question/13174254
  • brainly.com/question/13174255

#learnwithBrainly

7 0
3 years ago
The measurement of a central angle is θ=240 degrees. Find the measurement of θ in radians.
Mazyrski [523]

Answer:

4.189 radians

Step-by-step explanation:

Given data

θ=240 degrees

Let us convert from  degrees to radians

Angle in Radian= Angle in degree* π/180

Substitute

Angle in Radian= 240* π/180

Angle in Radian= 4* π/3

Angle in Radian= 4* 3.142/3

Angle in Radian=12.568/3

Angle in Radian=4.189 radians

3 0
3 years ago
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