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3 years ago

Need help with this assignment

Mathematics

2 answers:

zloy xaker [14]3 years ago

4 0

Answer:

150 minutes

Step-by-step explanation:

2 x 1 1/4 = 2 1/2

2 1/2 hours equals 150 minutes

g100num [7]3 years ago

3 0

Answer:

you would dance for 2 hours and 30 minutes or 150 minutes

Step-by-step explanation:

1 hour and 1/4 of an hour= 1 hour and 15 minutes and that times two =2 hours and 30 minutes = 150 minutes

have a nice day and stay safe

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Review

Ahat [919]

Answer: $\bold{a)\quad 51, 54, 57\qquad a_n=a_{n-1}+3}$

$\bold{b)\quad 250, 625, 1562.5\qquad a_n=(2.5)a_{n-1}}$

<u>Step-by-step explanation:</u>

a) This is an arithmetic sequence where 3 is added to the previous term.

48 + 3 = 51

51 + 3 = 54

54 + 3 = 57

The recursive formula for this sequence is: $a_n = a_{n-1}+3$

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b) This is a geometric sequence where 2.5 is multiplied to the previous term.

100(2.5) = 250

250 (2.5) = 625

625(2.5) = 1562.5

The recursive formula for this sequence is: $a_n=(2.5)a_{n-1}$

5 0

2 years ago

A wire is attached at the top of a 500 ft vertical antenna and is staked in the ground 1200 ft from the base of the antenna. how

Lady_Fox [76]

A^2 + b^2 = c^2
(500)^2 + (1200)^2 = c^2
1,690,000 = c^2
take the square root of 1,690,000
Answer is 1,300 feet

8 0

3 years ago

Explain why the numerical expression 4 less than 20 is written as 20-4 and not 4-20

Phantasy [73]

When converting English phrases into mathematical expressions/equations, we do things from left to right. That is why it's 4 - 20 instead of 20 - 4.

This rule is applied to division as well.

8 0

3 years ago

Write the product as a trinomial.(k – 1)(k – 4)

SashulF [63]

(k - 1)(k - 4)

Use FOIL to solve this.

First
k * k
Outer
k * -4
Inner
-1 * k
Last
-1 * -4

k^2 - 4k - 1k + 4

k^2 - 5k + 4 is the trinomial.

5 0

3 years ago

I need help with algebra 9

Leona [35]

Answer:

i got you just tell me the question

Step-by-step explanation:

3 0

3 years ago