3 years ago

Find the value of a. 19 km 19 km Perimeter = 57 kilometers

Mathematics

1 answer:

zloy xaker [14]3 years ago

8 0

Answer:

19km

Step-by-step explanation:

The formula for the perimeter of a triangle is: S+S+S.

So;

19km+19km+a=57km

a=57km-19km-19km

=19km

You might be interested in

Rolando bought a bag of carrots that weighed 4.07 pounds and a bag of potatoes that weighed 2.88 pounds.How many poumds of veget

Tresset [83]

6.95 pounds of vegetables.

4 0

3 years ago

Step 3: 2x > 10 Step 4: x > 5 What property justifies the work between step 3 and step 4? A. division property of inequali

BigorU [14]

Answer:

A. Division property of inequality.

Step-by-step explanation:

Let be $2\cdot x > 10$ , we proceed to show the appropriate procedure to step 4:

1) $2\cdot x >10$ Given

2) $x > 5$ Compatibility with multiplication/Existence of multiplicative inverse/Associative property/Modulative property/Result. (Division property of inequality)

In consequence, the division property of inequality which states that:

$\forall\, a, b, c \in \mathbb{R}$ . If $c > 0$ , then:

$a> b\,\longrightarrow a\cdot c > b\cdot c \,\lor\, a$

But if $c < 0$ , then:

$a> b\,\longrightarrow a\cdot c < b\cdot c \,\lor\, a b\cdot c$

Hence, correct answer is A.

5 0

3 years ago

A student is using a spinner with four equal sections numbered 1 through 4. He also tosses a fair coin. What is the correct samp

nignag [31]

Answer:

C. {(1,H), (2,H), (3,H), (4,H), (1,T), (2,T), (3,T), (4,T)}

8 0

3 years ago

Read 2 more answers

PLEASE HELP ME! THIS IS THE MOST URGENT! I WOULD HIGHLY APPRECIATE IT! PLEASE PLEASE PLEASE.

sergeinik [125]

Answer:

see attached

Step-by-step explanation:

The infinite series with a common ratio greater than 1 will not have a finite sum.

8 0

3 years ago

Read 2 more answers

Pls answer the question

Lunna [17]

Answer:

Step-by-step explanation:

each always has a x

4 0

3 years ago

Find the value of a. 19 km 19 km Perimeter = 57 kilometers​

Find the value of a. 19 km 19 km Perimeter = 57 kilometers