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goldenfox [79]
3 years ago
13

Which of the following shows 2.1851 rounded to the nearest hundredth?

Mathematics
1 answer:
Dmitry [639]3 years ago
4 0

Answer:

C. 2.19

Step-by-step explanation:

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Solve for x if sqrt (3x-8) + 1 = sqrt (x+5)
In-s [12.5K]

The solution of x in the given expression \mathbf{\sqrt{(3x-8)}+1 = \sqrt{(x+5)}} is 4. However, if it is \mathbf{\sqrt{(3x-8)+1} = \sqrt{(x+5)}}, it is 6.

<h3>What is the solution to algebraic expression?</h3>

The solution to the given algebra expression involving surds can be seen in the steps below.

Given that:

\mathbf{\sqrt{(3x-8)}+1 = \sqrt{(x+5)}}

Remove the square roots, we have:

12x - 32 = 4x² - 48x + 144

Solving the quadratic equation at the RHS and equating it to LHS, we have:

x = 11, x = 4

Verifying the solutions by replacing the value of x with the given equation:

  • x = 11 False
  • x = 4 True

Therefore, we can conclude that the value of x = 4

NOTE:

Given that:

\mathbf{\sqrt{(3x-8+1)} = \sqrt{(x+5)}}

Square both sides

3x - 7 = x +5

Solve for x

3x - x = 5 + 7

2x = 12

x = 6

Learn more about solving to algebraic expressions here:

brainly.com/question/4344214

#SPJ1

5 0
2 years ago
What is negative 7 time 9 over 7
Anarel [89]
-9 if I did the math right.
6 0
3 years ago
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What the distance between (4, 5) and (2, 2)
beks73 [17]

The answer is 3. 3 unit distance.

7 0
3 years ago
Based on a random sample of 25 units of product X, the average weight is 102 lbs., and the sample standard deviation is 10 lbs.
Alex

Answer:

Step-by-step explanation:

Given that for a sample size of 25, sample mean = 102 lbs. and sample std deviation = 10 lbs.

H_0: \bar x = 100\\H_a: \bar x >100

(Right tailed test)

Given that we assume population is normally distributed

Test statistic:

Mean difference = +2

Std error of sample = \frac{10}{\sqrt{25} } =2

t = test statistic = Mean diff/Std error = 1

degree of freedom= n-1 =24

Critical value of t = 1.711

Our test statistic >1.71

Accept alternate hypothesis

Because there is significant difference between the test statistic and test statistic lies above critical value.

3 0
3 years ago
(Very easy) Find the volume. Round to the nearest tenth if necessary.
Pavel [41]

Answer:

410.5 yards cubed

Step-by-step explanation:

Volume of a cone is 1/3Bh

h is the height of the cone

B is the area of the base, which is a circle, so use πr^2 to find area of the circle

The radius is 7, so:

π7^2

π49(8)(1/3) = 410.5

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3 years ago
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