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devlian [24]
3 years ago
11

Solve for x.

Mathematics
1 answer:
olga nikolaevna [1]3 years ago
3 0

Answer:

A. x = 1 1/2

Step-by-step explanation:

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After taking a 70 point test, a student guesses that he got 65 points correct. Later he finds out he got 67 points
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Answer:

Percent error = 4.29%

Step-by-step explanation:

Percent error can be defined as a measure of the extent to which an experimental value differs from the theoretical value.

Mathematically, it is given by this expression;

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Given the following data;

Experimental value = 67

Theoretical value = 70

Substituting into the equation, we have;

Percent \; error = \frac {67 - 70 }{ 70} *100

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4 0
3 years ago
13. Write a few sentences describing what you have learned about the mean length of the population of 268 words in the Gettysbur
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7 0
3 years ago
Pls help dis is due tomorrow n I have a science project also due so pls help me
pantera1 [17]
List A
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3 years ago
A 20 ft. ladder is used against a 15 ft. wall. What is the measure of the angle made by the ladder and the ground (nearest whole
Brrunno [24]

Step-by-step explanation:

Given that,

The length of a ladder, H = 20 feet

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So,

\sin\theta=\dfrac{15}{20}\\\\\theta=\sin^{-1}(\dfrac{15}{20})\\\\\theta=48.59^{\circ}

Now using Pythagoras theoerm,

b=\sqrt{H^2-h^2}\\\\b=\sqrt{20^2-15^2}\\\\b=13.2\ ft

Hence, the angle made by the ladder and the ground is 48.59° and the ladder is 13.2 feet from the wall on the ground.

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3 years ago
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Gnoma [55]

Answer:

5.  3/10

6.  7/12

7.   7/8

8.   4/3

Step-by-step explanation: Hope this helps!

7 0
3 years ago
Read 2 more answers
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