My teacher says theres 3 correct answers

What is the length of BC in the right triangle below

Anna [14]

Answer:

<h2>15 units</h2>

The length of BC is 15 units.

Solution,

Hypotenuse(h)=?

perpendicular(p)=12

base(b)=9

Using Pythagoras theorem,

${h}^{2} = {p}^{2} + {b}^{2} \\ or \: {h}^{2} = {12}^{2} + {9}^{2} \\ or \: {h}^{2} = 12 \times 12 + 9 \times 9 \\ or \: {h}^{2} = 144 + 81 \\ or \: {h}^{2} = 225 \\ or \: h = \sqrt{225} \\ or \: h = \sqrt{ {15}^{2} } \\ h = 15$

hope this helps...

Good luck on your assignment....

6 0

3 years ago

Read 2 more answers

If 40% of a number is 56. What was the original Number

pentagon [3]

56 divided by 40 is 1.4. Multiply that by 100 and you get 140.

This is the long way of doing it, but it's the way I've always done it.

7 0

3 years ago

Translate the sentence into an inequality.

Leto [7]

5b + 29 ≤ -25 is the translation of the phrase "the sum of a number times 5 and 29 is at most -25"

<h3>How to translate an English phrase into an algebraic equation?</h3>

Given the phrase in the question;

The sum of a number times 5 and 29 is at most -25.

First, we translate;

Let the unknown number represented by b.

A number times 5 ⇒ b × 5 ⇒ 5b
Sum ⇒ 5b + 29
Inequality sign for at most -25 ⇒ less than or equal to ⇒ ≤ -25

Now we combine the terms;

5b + 29 ≤ -25

We can go and solve for the unknown number.

5b + 29 ≤ -25

Subtract 29 from both sides

5b + 29 - 29 ≤ -25 - 29

5b ≤ -25 - 29

5b ≤ -54

b ≤ -54/5

Therefore, the translation of the phrase is 5b + 29 ≤ -25.

Learn more about inequality here: brainly.com/question/20383699

#SPJ1

5 0

1 year ago

Use the distance formula to decide whether ab=bc A(4,2) B(-1,-1) C(-6,-4)

quester [9]

$AB= \sqrt{(-1-4)^2+(-1-2) ^{2} }= \sqrt{(-5)^2+(-3)^2}= \sqrt{34} \\ \\ BC= \sqrt{(-6+1)^2+(-4+1) ^{2} }= \sqrt{(-5)^2+(-3)^2}= \sqrt{34} \\ \\ \sqrt{34}= \sqrt{34} \ \ \to \ \ AB=BC$

4 0

3 years ago

Lisa paid 43.95 for 16.1 gallon of gasoline. What was that cost per gallon rounded to the nearest hundredth

djverab [1.8K]

Answer:

2.73

Step-by-step explanation:

It is given that Lisa paid 43.95 for 16.1 gallons of gasoline.

So, the cost of 16.1 gallons of gasoline is 43.95.

Hence, the cost of gasoline per gallon is 43.95/16.1 = 2.7304347.

Now, it is required to round this value to the nearest hundredth.

Therefore, the cost of gasoline per gallon rounded to the nearest hundredth is 2.73. (Answer)

3 0

3 years ago