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3 years ago

Write two numbers that multiply to the value on top and add to the value on bottom.

Mathematics

2 answers:

Irina-Kira [14]3 years ago

7 0

The pairs of numbers that multiply to 20 are:
(1,20),(2,10),(5,4)

The pair that also adds up to 20 is (2,10). So these are the two numbers you need.

zavuch27 [327]3 years ago

4 0

2 and 4 because they all multiply and add up to 12 and 20

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The triangular numbers are defined by the recursive formula t1 = 1, tn = tn - 1 + n, where n ∈N and n > 1. What are the first

GalinKa [24]

ANSWER

C) 1, 3, 6, 10, 15, 21, 28, 36, 45

EXPLANATION

The recursive formula is,

$t_1=1,t_n=t_{n-1}+n$

when n is a natural number greater than 1.

When n=2,

$t_2=t_{2-1}+2$

$t_2=t_{1}+2 = 1 + 2 = 3$

when n=3,

$t_3=t_{2}+2 = 3 + 3= 6$

when t=4,

$t_4=t_{3}+2 = 6+ 4= 10$

When t=5,

$t_5=t_{4}+5 = 10 + 5 = 15$

when t=6,.

$t_6=t_{5}+6 = 15 + 6 = 21$

when t=7

$t_7=t_{6}+7 = 21 + 7 = 28$

When t=8,

$t_8=t_{7}+8 = 28 + 8 = 36$

When t=9,

$t_9=t_{8}+9 = 36 + 9 = 45$

Hence the first nine triangular number are

C) 1, 3, 6, 10, 15, 21, 28, 36, 45

3 0

3 years ago

-6(2-3n)-6(-7-2n)=30 solve for n

Jet001 [13]

Answer:

n=0

Step-by-step explanation:

See pictures

Hope this helps ^-^

6 0

3 years ago

Read 2 more answers

I NEED HELP ASAP PLEASE!!!!

givi [52]

Answer:

Hello!

An irrational number is all the real numbers which are not rational numbers.

M = $\sqrt{2$ is a irrational number.

N = $\sqrt{5}$ is a irrational number.

S = 2 is not irrational, and is actually a whole number.

T = 5 is not irrational, and is actually a whole number.

Have a great day!

I hope this helps! <33

4 0

2 years ago

What is the sum of the measures of the interior angles of a 15-sided polygon?

AlladinOne [14]

Answer:

B. 2340

Step-by-step explanation:

Interior angles of a polygon is given by

(n – 2)180 where n is the number of sides

(15-2) *180

13*180

2340

3 0

3 years ago

A triangle has an area of 221.16 in.² the height of the triangle is 29.1 inches what is the length of the base of the triangle

Zigmanuir [339]

The formula you should use is Area = 1/2bh, in other words, area equals half times base times height. Now, substitute everything in, the equation should now be 221.16 = 1/2*b*29.1. This simplifies into 221.16 = 14.55b, now divide 14.55 on both sides, which leaves us to 15.2 = b. However, don't forget the units, which the answer (length of base) should be 15.2 in.^2.

7 0

2 years ago