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4vir4ik [10]
3 years ago
11

Express how you know that the sum of any two consecutive triangular numbers is a square number.

Mathematics
1 answer:
maw [93]3 years ago
8 0

Answer: Beacause 2 triangles make a square

Step-by-step explanation: 2 triangles make a square so it must be the same with numbers? -an 8th grader(me) [lol i'm not that smart]

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a standard six sided die. Janice rolled either a 2 or a 5 on the last 6 rolls of the die. What is the probability of Janice roll
Igoryamba

We have that   the probability of Janice rolling a 2 or 5 on her 7th toss of the dice is

\frac{1}{3}^7.

From the question we are told that

Janice rolled either a 2 or a 5 on the last 6 rolls of the die

Janice rolling a 2 or 5 on her 7th toss of the dice

P(2/ 5)=1/6+1/6\\\\P(2/ 5)=2/6\\\\P(2/ 5)=1/3.

Where

P(2/5 ) =(1/3)^6.

Janice roll the standard die 7th time the probability of getting 2 or 5 is

P(2/5 ) =\frac{1}{3}^7.

For more information on this visit

brainly.com/question/11234923?referrer=searchResults

7 0
2 years ago
Kyle stood on a bridge and threw a rock up and over the side. The height of the rocks in meters can be approximated by approxima
mojhsa [17]

Answer:

The factorized expression is (-5) × (t - 2.747) ×(t - 1.747)

Step-by-step explanation:

The given expression is -5·t² + 5·t + 24

To factorize the expression by completing the square method, we equate the expression to zero to get;

-5·t² + 5·t + 24 = 0

WE divide by -5 to get;

t² - t - 24/5 = 0

t² - t = 24/5

t² - t + 1/4 = 24/5 + 1/4

(t - 1/2)² = 5.05

t - 1/2 = ±√5.05

t = 1/2 + √5.05, 1/2 - √5.05

The factorized expression becomes;

(t - 1/2 + √5.05) and (t - 1/2 - √5.05)

Which gives;

(t - 2.747) ×(t - 1.747)

The factorized expression is (-5) × (t - 2.747) ×(t - 1.747).

8 0
3 years ago
Use three fours to make 11.
mr Goodwill [35]
4 + 4 + 4 - 1 = 11? Was it supposed to be an equation? I am confused.
7 0
3 years ago
Can you please answer both and show work
Effectus [21]

90*.1=9

90-9=81

81

190*.200=38

190-38=152

152

6 0
3 years ago
Read 2 more answers
Name a career in which one would have to use the phythagorean theorem.Give an example of when and how it would be used.Please wr
DanielleElmas [232]

Answer:

The careers that use Pythagoras theorem are mentioned below.

Step-by-step explanation:

The Pythagoras theorem states that the sum of squares of the two sides of right angled triangle is equal to the square of the length of the hypotenuse.

Let a, b and c be the sides of a right triangle where c is the length of the hypotenuse.Then

a^{2}+b^{2}=c^{2}

Pythagoras theorem is used in daily life situations.

A surveyor looks through a telescope toward a measuring stick a fixed distance away, so that the telescope's line of sight and the measuring stick form a right angle.

It is also used to calculate the steepness of slopes and mountains.

8 0
2 years ago
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