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lesya [120]
3 years ago
15

Label the parts of the equation 4x6=24

Mathematics
1 answer:
Alisiya [41]3 years ago
6 0

The numbers are constants, and the multiplication symbol is an operator.

If this equation were 4x * 6 = 24, then 4 would be a coefficient and x would be a variable. 6 and 24 are still constants and the multiplication symbol is still an operator.

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No need to estimate 231
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Jill Hartman earns $750 per week, plus 3% of sales in excess of $6500. if Jill sells $25000 in the first week her earnings are ?
Nezavi [6.7K]
The answer is going to be: answer B.

Hope this helps =D

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Given sinx=3/5 and x is in quadrant 2, what is the value of tan(x/2)
xxMikexx [17]
X is in the second quadrant means that x/2 is in the first quadrant.


Consider the right triangle drawn in the figure. Let tan(x/2)=a.

Then, let the length of the opposite side to x/2 be a, the adjacent side be 1 and the hypotenuse be square root of a squared +1, as shown in the figure.

sin(x/2)=|opp side|/ |hypotenuse| =  \frac{a}{ \sqrt{ a^{2}+1 } }

cos (x/2) = |adj side|/ |hypotenuse| =  \frac{1}{ \sqrt{ a^{2}+1 } }


from the famous identity: sin(2a)=2sin(a)cos(a), we have:

2sin(x/2)cos (x/2)=sin(x)

thus

2* \frac{a}{ \sqrt{ a^{2}+1 } }*\frac{1}{ \sqrt{ a^{2}+1 } }= \frac{3}{5}

2* \frac{a}{  a^{2}+1 }= \frac{3}{5}

10a=3 a^{2} +3

3 a^{2}-10a +3=0

(3a-1)(a-3)=0

thus a=1/3 or a=3


thus tan(x/2)=1/3 or tan(x/2)=3


Answer: {1/3, 3}

3 0
3 years ago
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A regular 10-sided polygon is called a decagon. What is the area of the decagon that has sides that measure 4.5 inches and an ap
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Step-by-step explanation:

3 0
4 years ago
For ΔABC, ∠A = 3x - 8, ∠B = 5x - 6, and ∠C = 4x + 2. If ΔABC undergoes a dilation by a scale factor of 1/2 to create ΔA'B'C' wit
Snezhnost [94]

Answer:

D. ∠B = ∠B' = 74° and ∠C = ∠C' = 66°

Step-by-step explanation:

Given,

\angle A=3x-8\\\angle B=5x-6\\\angle C=4x+2

We know,sum of all 3 angles of a triangle is 180°

Doing so ,

\angle A+\angle B+\angle C=180\\3x-8+5x-6+4x+2=180

Simplifying all like terms,

12x-12=180\\12x-12+12=180+12\\12x=192

Dividing both side by 12

x=\frac{192}{12}

x=16

Now we plug this in each angles and find their exact values.

\angle A=3x-8=(3\times16)-8=48-8=40°

\angle B=5x-6=(5\times16)-6=80-6 =74°

\angle C=4x+2 = (4\times16)+2=64+2=66°

Now substituting the x=16 in angles of dilated triangle.

\angle A'=(2\times16)+8=32+8= 40°

\angle B'=90-16=74°

\angle C'=(5\times16)-14=80-14=66°

We see that all the corresponding angles are equal and as far as the options are concerned only option (D) matches.

8 0
4 years ago
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