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aleksklad [387]
3 years ago
13

He equation 2x + 8 = 2(x + 5) has

Mathematics
1 answer:
Illusion [34]3 years ago
6 0

Answer:

No solution.

Step-by-step explanation:

The equation 2x + 8 = 2(x + 5) has no solution  as we see if we simplify it:

2x + 8 = 2x + 10

2x - 2x = 10 -8

0 = 2 which is absurd.

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Which is greater 2/5 or 3/4
Brut [27]
3/4 is greater than 2/5. 2/5 is .4 and 3/4 is .75
7 0
3 years ago
You measure 20 turtles' weights, and find they have a mean weight of 45 ounces. Assume the population standard deviation is 11.5
Naily [24]

Answer: the maximal margin of error associated with a 90% confidence interval for the true population mean turtle weight = 4.23

Step-by-step explanation:

Formula for margin of error : E=\dfrac{z^*\times (Population\ standard\ deviation)}{\sqrt{Sample\ size}}

, where z* = Critical z-value.

Given: population standard deviation = 11.5 ounces

Sample size = 20

Z value for 90% confidence level = 1.645

margin of error (E) = \dfrac{1.645\times11.5}{\sqrt{20}}

\approx4.23

Hence, the maximal margin of error associated with a 90% confidence interval for the true population mean turtle weight = 4.23

3 0
3 years ago
Brainlyst for best answer with work shown
wlad13 [49]

Answer:

5*5 = one face = 25 inches squared

6 faces times 25 inches square = 150 inches squared

Step-by-step explanation:

4 0
3 years ago
53-_ =30 find missing number
Pavlova-9 [17]
23 is the missing number
8 0
3 years ago
Read 2 more answers
A central angle θ in a circle with a radius of 6.4 centimeters intercepts an arc with a length of 8 centimeters. What is the rad
vlada-n [284]
Radius of the circle = r = 6.4 cm
Length of the arc = s = 8 cm
Measure of angle formed by the arc = <span>θ = ?

The radius of the circle, arc length and the angle made by the arc at the center of the circle are related by the equation:

s = r</span><span>θ

From here we can find </span><span>θ by:

</span><span>θ = s/r

Using the values, we get:

</span><span>θ = 8/6.4
</span><span>
θ</span><span>= 1.25 radians

Thus the radian measure of the angle </span>θ made by the arc will be 1.25 radians
7 0
3 years ago
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