3 years ago

1) How many triangles will be formed by 13 matchsticks?

Mathematics

1 answer:

krek1111 [17]3 years ago

3 0

1) 4 and one extra

2) 21

You might be interested in

Write the expression in standard form <img src="https://tex.z-dn.net/?f=%5Cfrac%7B7%7D%7B3-15i%7D" id="TexFormula1" title="\

valentina_108 [34]

Answer:

7/78 - 35/78i

Step-by-step explanation:

A complex number is a real number, an imaginary number or a number with both real and imaginary number. Its standard form is:

a + bi

For the expression, 7/ 3-15i 

(7/ 3-15i) (3+15i)

21 - 105i / (234)

7/78 - 35/78i

4 0

3 years ago

A T R C CR-12 cm RE 11 TI- IV. VE- CE EA AT

Afina-wow [57]

Answer:

i think those are cord nits correct me if im wrong i might be

Step-by-step explanation:

5 0

3 years ago

Harry’s dog lost -2 7/8 pounds what is the change in the dog’s weight written as a decimal

krok68 [10]

The answer would be -1.125

7 0

4 years ago

What is the probability of getting either blue or green on a spinner that is 3/10 greens and 1/5 blue?

Semmy [17]

Answer:

1/2 or 0.50

Step-by-step explanation:

To find the probability of getting either blue or green on a spinner, we must add both probabilities together.

$\frac{3}{10}+\frac{1}{5} = ?$

To make adding our two fractions easier, we need to make sure they have like denominators.

$\frac{1*2}{5*2} =\frac{2}{10}$

Now that the denominators of our probabilities are the same, we can add them together to get our answer.

$\frac{3}{10} +\frac{2}{10}=\frac{5}{10}$

$\frac{5}{10} =\frac{1}{2}$ or $0.50$

5 0

3 years ago

What are three sets of fractions that can be multiplied to get 15/56?

vredina [299]

Much more than just 3.

3 0

4 years ago