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3 years ago

Find the value of x ? X=?

Mathematics

1 answer:

labwork [276]3 years ago

3 0

Answer:

x = 109 degrees

Step-by-step explanation:

2x = 57 + 161

2x = 218

x = 109 degrees

Formula:

2 times the angle = arc1 + arc2

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In an examination, 80 students secured

faust18 [17]

Number of students who secured first class in English only is 20

Step-by-step explanation:

Step 1: Find the number of students who secured first class in English only.

Total number of students who secured first class in English or Maths, T = 80

Number of students who secured first class in Maths, M = 50

Number of students who secured first class in both English and Maths, EM = 10

⇒ Let the number of students who secured first class in English only be x.

Total students with first class, T = M + EM + x

⇒ 80 = 50 + 10 + x

⇒ 80 = 60 + x

∴ x = 80 - 60 = 20

3 0

3 years ago

Use the quotient rule to find the derrivatives of 3/x^2

Hunter-Best [27]

Answer:

f'(x) = -6/x³

Step-by-step explanation:

We are given;

f(x) = 3/x²

Using quotient rule, we can write as;

f(x) = g(x)/h(x)

To find the derivative, from quotient rule, we can write;

f'(x) = [(h(x)*g'(x)) - (g(x)*h'(x))]/(h(x))²

g'(x) = 0

h'(x) = 2x

Thus;

f'(x) = [(x²*0) - (3*2x)]/(x²)²

f'(x) = -6x/x⁴ = -6/x³

f'(x) = -6/x³

5 0

3 years ago

A car travels 14km in 25mins . Find out how far the car can travel in 5 hours if the speed remains the same ?

jekas [21]

<h3><u>Answer :- </u></h3>

168 km ...

<h3><u>Explanation :- </u></h3>

It is given that the car travels 14km in 25 minutes..

Now , assume that the distance the car travel in 5 hours be x..

Since 1 hour = 60 minutes..
5 hours = 300 minutes ..

• Thus , The two given statements are :-

14km -----------------> 25 minutes..
And, x km -------------> 300 minutes..

The distance travelled by car and the time taken by the car is directly proportional to each other....

$\frac{14}{25} = \frac{x}{300}$

$= x = 168km$

• Hence , Car can travel 168km in 5 hours ..

Hope this helps you :)

6 0

2 years ago

Megan and Devon are working together in science class to build a terrarium for an herb garden. The plan for the terrarium, with

rewona [7]

Answer:

48,000,000

Step-by-step explanation:

just multiply them all

8 0

3 years ago

Translate the algebraic expression shown below into a verbal expression.

Paraphin [41]

<span>
Fraction with variable x in numerator and 10 in the denominator. ~ $\frac{x}{10}$

</span><span> The sum of ten and some number ~ 10 + x

</span>
<span> The quotient of some number and ten ~ x ÷ 10

</span>
<span> The product of some number and ten ~ x • 10

</span>
<span> The difference of ten and some number ~ 10 - x

I hope this helps. (:
</span>

4 0

3 years ago