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ankoles [38]
3 years ago
14

What's half an hour mean?

Mathematics
2 answers:
Inessa05 [86]3 years ago
7 0

Answer:

30 minutes

Step-by-step explanation:

ICE Princess25 [194]3 years ago
7 0

half an hour means 30 minutes

You might be interested in
Write a postive or negative integer that repesents the situation. A football team loses 3 yards
Andreas93 [3]

Answer: -3

Step-by-step explanation:

Loses means negative. It is getting lesser and if you use a number line and start from zero, you move to the left side of it and get -3. I hope that helps.

3 0
3 years ago
alexis rode her bike 4.5 miles. johnny rode his bike 8.1 miles. how many more miles did johnny ride his bike?
Ahat [919]
Hey there!

The key word in there is Many more. Whenever you see that word, it usually means to subtract

So you would subtract 4.5 from 8.1
8.1
-4.5= 3.6
4 0
3 years ago
Read 2 more answers
Can u guys pls help me with this homework
gladu [14]

The value of √(7 * 23 - 1)/8 is 4.47, the values of a, b and c are -14/11, -10/11 and 3, respectively and the area of the shape is 5√5 + 5 square meters

<h3>How to evaluate the radical expression?</h3>

The question goes thus:

If √5 = 2.236, evaluate √(7 * 23 - 1)/8

We have:

√(7 * 23 - 1)/8

Evaluate the product of 7 and 23

√(7 * 23 - 1)/8 = √(161 - 1)/8

Evaluate the difference of 161 and 1

√(7 * 23 - 1)/8 = √160/8

Evaluate the quotient of 160 and 8

√(7 * 23 - 1)/8 = √20

Express 20 as the product 4 and 5

√(7 * 23 - 1)/8 = √(4 * 5)

Expand the product

√(7 * 23 - 1)/8 = √4 * √5

Express √4 as 2

√(7 * 23 - 1)/8 = 2 * √5

Substitute √5 = 2.236

√(7 * 23 - 1)/8 = 2 * 2.236

Evaluate the product

√(7 * 23 - 1)/8 = 4.472

Approximate

√(7 * 23 - 1)/8 = 4.47

Hence, the value of √(7 * 23 - 1)/8 is 4.47

<h3>How to simplify the radical expression?</h3>

The expression is given as:

(3√2 + 5√6)/(3√2 - 5√6)

Rationalize the above expression

(3√2 + 5√6)/(3√2 - 5√6) * (3√2 + 5√6)/(3√2 + 5√6)

Evaluate the product

(3√2 + 5√6)²/((3√2)² - (5√6)²)

Simplify the denominator

(3√2 + 5√6)²/(18 - 150)

This gives

[(3√2)² + (5√6)² + 2 *(3√2) * (5√6)]/(-132)

Simplify the numerator

[168 + 120√3]/(-132)

Simplify the fraction

-14/11 - 10√3/11

Hence, the values of a, b and c are -14/11, -10/11 and 3, respectively

<h3>How to determine the area?</h3>

The area is calculated as:

A = 1/2 * (Sum of parallel bases) * Height

So, we have:

A = 1/2 * (4 + 3√5 + 6 - √5) * √5

Evaluate the like terms

A = 1/2 * (10 + 2√5) * √5

Evaluate the product

A = (5 + √5) * √5

Evaluate the product

A = 5√5 + 5

Hence, the area of the shape is 5√5 + 5 square meters

Read more about rational expressions at:

brainly.com/question/8008240

#SPJ1

6 0
1 year ago
Tan 9x - tan 5x/ 1+ tan 9x tan 5x
NeTakaya

Answer:

tan 4x

Step-by-step explanation:

Note the difference identity for tangent ratio is

tan(x - y) = \frac{tanx-tany}{1+tanxtany}

Given

\frac{tan9x-tan5x}{1+tan9xtan5x} ← in the form of the right side of the expansion, thus

= tan(9x - 5x)

= tan 4x

8 0
3 years ago
Vincent started driving at 45 miles per hour. After he drove 10 miles his friend Bill started driving the same route at a rate o
Tamiku [17]

Answer: No

Step-by-step explanation: Vincent started 10 miles ahead so Bill will never catch up at this rate

4 0
3 years ago
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