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Phantasy [73]
3 years ago
8

–0.4(3x – 2) + StartFraction 2 x plus 4 Over 3 EndFraction for x = 4

Mathematics
2 answers:
Nadusha1986 [10]3 years ago
4 0

Answer:

0

Step-by-step explanation:

Given

- 0.4(3x - 2) + \frac{2x+4}{3} ← substitute x = 4 into the expression

= - 0.4(3(4) - 2) + \frac{2(4)+4}{3}

= - 0.4(12 - 2) + \frac{8+4}{3}

= - 0.4(10) + \frac{12}{3}

= - 4 + 4 = 0

kenny6666 [7]3 years ago
3 0
0 also thanks for putting the whole thing most people don’t so it hard to understand lol
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A parabola opening up or down has vertex (0, 0) and passes through (-6,-9).
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Answer:

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Step-by-step explanation:

Since the vertex is 0,0 h and k are both 0

then you plug in the -6 and -9 to the equation

a(-6)=-9

3/2(x)^2

hope that answers your question

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Triangle EFG has vertices E(–3, 4), F(–5, –1), and G(1, 1). The triangle is translated so that the coordinates of the image are
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You and your friend decide to get your cars inspected. You are informed that 71​% of cars pass inspection. If the event of your​
Ostrovityanka [42]

Answer:

a) 0.71

b) 0.29

c) 0.50

d) 0.91

Step-by-step explanation:

To get the probability that your car pass inspection we use the given information,  if we are informed that 71​% of cars pass inspection, that means that from 100 cars ,  71 pass the inspection.  

P=# of possibilities that meet the condition / #of equally likely possibilities.

a) So, the  probability that your car passes​ inspection is

P(passing) =71/100=0.71

b) We have two options,  passing or not passing the inspection and the Complement Rule states that the sum of the probabilities of an event and its complement must equal 1.

So,  the probability of not passing is

P(not passing)= 1- P(passing)

P(not passing)= 1- 0.71=0.29

c) When we need to know the probability of 2 event happening at the same time,  we multiply both probabilities.

The probability that both of the cars​ pass= the probability of passing our car*  the probability of passing the car of your friend

P(both passing) =0.71*0.71=0.50

d) The probability that at least one of the two cars​ passes is

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3 0
3 years ago
The measures of two complementary angles are x and 2x+12. Find the measures of the angles.
Anna11 [10]

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8 0
3 years ago
Quadrilateral ABCD will be dilated about the origin by a scale factor of 1/3 and then reflected across the y-axis.
Luda [366]

Answer:

See explanation

Step-by-step explanation:

The coordinate of ABCD is not given; So, I will solve using general coordinates (x,y).

First, ABCD is dilated by 1/3.

The rule is:

(x,y) \to \frac{1}{3}(x,y)

This gives

(x,y) \to (\frac{x}{3},\frac{y}{3})

Next, it is reflected across y-axis.

The rule is:

(x,y) \to (-x,y)

So, we have:

(\frac{x}{3},\frac{y}{3}) \to (-\frac{x}{3},\frac{y}{3})

So, the complete transformation is:

(x,y) \to (\frac{x}{3},\frac{y}{3}) \to (-\frac{x}{3},\frac{y}{3})

Assume that:

A = (1,3)

The transformation will be:

A' = (-\frac{1}{3},\frac{3}{3})

A' = (-\frac{1}{3},1)

4 0
2 years ago
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