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kati45 [8]
3 years ago
15

Find The Value Of X When 6-2x = 6x-10x+6. The Value Is

Mathematics
1 answer:
Natasha_Volkova [10]3 years ago
6 0

Answer:

x = 0

Step-by-step explanation:

6 - 2x = 6x - 10x + 6

1. Isolate the variable (x)

  • Add 2x to both sides

    6 - 2x = 6x - 10x + 6 -> 6 = 6x - 10x + 2x + 6

  • Subtract 6 from both sides

    6x - 10x + 2x + 6 -> 0 = 6x - 10x + 2x

2. Combine like terms

      0 = 6x - 10x + 2x -> 0 = -2x

3. Solve

  • Divide both sides by -2

       0 = x

*Note: 0 divided by anything is 0 so 0/-2 is 0

(unless it is 0/0 which equals 1)

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A square pyramid has a base area of 64 ft2. The pyramid’s total surface area is 224 ft2.
borishaifa [10]

The area of each triangular face is 40 square feet

<em><u>Solution:</u></em>

Given that,

Square pyramid has a base area of 64 square feet

The pyramid’s total surface area is 224 square feet

The total surface area of a regular pyramid is the sum of the areas of its lateral faces and its base

<em><u>Therefore, total surface area of square pyramid is given as,</u></em>

Total surface area = base area + 4(Area of traingular face)

Let "x" be the area of each traingular face

224 = 64 + 4(x)\\\\224 - 64 = 4x\\\\4x = 160\\\\x = 40

Thus area of each triangular face is 40 square feet

5 0
3 years ago
A manufacturer makes golf balls whose weights average 1.62 ounces, with a standard deviation of 0.05 ounces. Estimate the probab
saul85 [17]

Answer:

P(-1 < z < 1)  = 0.3174

Step-by-step explanation:

Mean (μ) = 1.62 ounces

Standard Deviation (σ) = 0.05

No of balls (sample size n) = 100

X = weight of a ball

Weight of a group of 100 balls must lie in the range 162 ± 0.5 ounces i.e. weight of a single ball will be 162/100 ± 0.5/100 ounces = 1.62 ± 0.005 ounces.

So, we need to find the probability P (1.615 < X < 1.625). We will use the central limit theorem.

z = (Χ' - μ)/(σ/\sqrt{n})

P (1.615 < X < 1.625) = (\frac{1.615 - 1.62}{0.05/\sqrt{100} } < (Χ - μ)/(σ/\sqrt{n}) < \frac{1.625 - 1.62}{0.05/\sqrt{100} })

                                = (-1 < z < 1)

We need to find the probability of P (-1 < z < 1) by looking at the Normal Distribution Probability Table.

In order to make our working simpler, we need to break P (-1 < z < 1) into two parts: P(z < 1) and P(z > -1)

The probability for areas under the normal curve are given for P(z>X) so we can directly find the probability of P (z > -1) by referring to the normal probability table.

P(z > -1) = 0.1587

We can calculate P(z < 1) by subtracting P(z >1) from the total probability (i.e. 1). P(z >1) can be obtained from the normal probability table.

P(z < 1) = 1 - 0.8413 = 0.1587

By adding the two probabilities together, we get:

P(-1 < z < 1) = P(z < 1) + P (z > -1)

                   = 0.1587 + 0.1587

P(-1 < z < 1)  = 0.3174

6 0
3 years ago
PLEASE PLEASE HELP!! Sketch a triangle and label correctly. Work must be shown for this problem. Round answers to the nearest hu
torisob [31]

Answer:

Please see attached image for the sketch with the labels.

Length "x" of the ramp = 11.70 ft

Step-by-step explanation:

Notice that the geometry to represent the ramp is a right angle triangle, for which we know one of its acute angles (20^o), and the size of the side opposite to it (4 ft). Our unknown is the hypotenuse "x" of this right angle triangle, which is the actual ramp length we need to find.

For this, we use the the "sin" function of an angle in the triangle, which is defined as the quotient between the side opposite to the angle, divided by the hypotenuse, and then solve for the unknown "x" in the equation:

sin(20^o)=\frac{opposite}{hypotenuse}\\ sin(20^o)=\frac{4}{x} \\x=\frac{4}{sin(20^o)} \\x=11.695\,\,ft

Therefore the length of the ramp rounded to the nearest hundredth as requested is: 11.70 ft

5 0
3 years ago
Last week, Clay wrote 4 checks for $20 each from his checking account., withdrew another $30, and finally made a deposit of $96.
Aliun [14]
(4x20)+30=$110 taken out. if he had $96 put back in, then go $110-$96, leaving a balance of -$14, or in other words, the balance dropped $14.
6 0
3 years ago
Use unit rate to find the unknown value 16/32 equals blank over 14​
grigory [225]

Answer:

x = 7

Step-by-step explanation:

simplify 16/32

16/32 divided by 8/8=2/4

2/4 divided by 2=1/2

so

1/2 = x/14

to get to 14  from 2 you need to multiply by 7

1/2 times 2/2 = 7/14

so x = 7

5 0
3 years ago
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