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3 years ago

A triangle with two congruent sides is called a(n) triangle.

Mathematics

2 answers:

ICE Princess25 [194]3 years ago

6 0

Answer:

ISOSCELES!!!!!!!!!!!!!!!!!!!!!!111

Step-by-step explanation:

mars1129 [50]3 years ago

4 0

A triangle with 2 congruent sides is an <u>ISOSCELES</u> triangle.

Answer: Isosceles

FYI: A triangle with 3 congruent sides is an equilateral triangle.

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Use a rectangular array to write the product in Standard form 2(x+10=?

Sladkaya [172]

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3 years ago

Can you see an easy way to work out the value of <img src="https://tex.z-dn.net/?f=%5Csqrt%7B%201%5E3%20%2B%202%5E3%20%2B%203%5E

Lina20 [59]

We have the sum of cubes identity

$a^3 + b^3 = (a + b) (a^2 - ab + b^2)$

and observing that 1 + 4 = 2 + 3, we have

$1^3 + 4^3 = (1 + 4) (1^2 - 4 + 4^2) = 5 \times 13$

and

$2^3 + 3^3 = (2 + 3) (2^2 - 6 + 3^2) = 5 \times 7$

Then

$\sqrt{1^3+2^3+3^3+4^3+5^3} = \sqrt{5\times13 + 5\times7 + 5\times5^2} = \sqrt{5 \times (20 + 25)} \\\\ ~~~~~~~~ = \sqrt{5^2 \times (4 + 5)} = \sqrt{5^2\times9} = \sqrt{5^2\times3^2} = 5\times3 = \boxed{15}$

Alternatively, we have the well-known sum of cubes formula

$\displaystyle \sum_{i=1}^n i^3 = \frac{n^2(n+1)^2}4$

The sum under the square root is this sum with $n=5$ . Then

$1^3+2^3+3^3+4^3+5^3 = \dfrac{5^2\times6^2}4 = 225 = 15^2$

and so the square root again reduces to 15.

5 0

2 years ago

If Alex and Mpho have to share R20 in the ratio 2:3,how much will Mpho get?

CaHeK987 [17]

Answer:

Step-by-step explanation:

sum of ratio=2+3=5

Mpho gets=3/5×20=12

4 0

3 years ago

What is the coefficient of the term 13a in the expression 13a+6b

il63 [147K]

Answer:

The coefficient of the term 13a is, 13

Step-by-step explanation:

Coefficient term are the numbers that multiply the variables or letters

In the given expression: $13a+6b$

13a means 13 times a , and a is the variable,

so 13 is the coefficient .

6b means 6 times b , and b is the variable ,

so 6 is the coefficient .

therefore, the coefficient of the term 13a in the given expression is, 13.

5 0

3 years ago

Read 2 more answers

Hi what is answer plz

34kurt

the answer is 12 lolllo

6 0

3 years ago