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4 years ago

How do you do you solve this question?

Mathematics

2 answers:

Degger [83]4 years ago

6 0

Answer:

Step-by-step explanation:

-25 can be written as 25 x -1

so root -25 is equal to root 25 x -1

root -1 can also be written as i

so root -25 is root 25 multiplied by i

simplifiying this to 5i

Dmitriy789 [7]4 years ago

6 0

Answer:

Step-by-step explanation:

I don't know how to solve but the answer is 5i

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Jake took a handful of M&Ms from the candy dish on the coffee table.

iren2701 [21]

Answer:

I want brainliest

Step-by-step explanation:

6 x 3/1 or 6 x 3 = 18

put the reds back in

18 x 2 = 36

take the ones from his sister

4 0

3 years ago

Read 2 more answers

on the first day if the month, John counted his money and found he had $28.35. since then he has received an additional $17.26 f

barxatty [35]

Dude, this is simple addition. 28.35 + 17.26 = 45.61

He now has $45.61

8 0

3 years ago

The 17th term of an Arithmetic sequence is 51. If the commons difference is 7, what is the first term ?

vovikov84 [41]

Answer:

The first term is:

$a_1=-61$

Step-by-step explanation:

The arithmetic sequence is defined by

$a_n=a_1+\left(n-1\right)d$

where

$a_1$ is the first term

$d$ is the common difference

the 17th term of an arithmetic sequence is 51.

i.e. $a_{17}=51$

$a_n=a_1+\left(n-1\right)d$

$a_{17}=a_1+\left(17-1\right)d$

$51=a_1+\left(17-1\right)7$ ∵ $n = 17$ , $a_{17}=51$ , $d=7$

$a_1+112=51$ ∵ $\left(17-1\right)\cdot \:\:7=112$

$a_1=-61$

Therefore, the first term is:

$a_1=-61$

8 0

3 years ago

What is 299,864 times 5?

irakobra [83]

Answer:

1,498,420

Step-by-step explanation:

6 0

3 years ago

A rectangular hallway rug has a width of 9 feet, and the diagonal measures 41 feet. What is the rug's length?

slega [8]

Answer:

Rug's length is equal to $40$ feet.

Step-by-step explanation:

Width of a rectangular hallway rug $(w)=9$ feet

Diagonal of a rectangular hallway rug $(d)=41$ feet

The relation between width $(w)$ , length $(l)$ and diagonal $(d)$ is given as follows:

$l^2+w^2=d^2$

$l^2+9^2=41^2\\l^2+81=1681\\l^2=1600$

$l=\sqrt{1600}$

$l=40$ feet

So, rug's length is equal to $40$ feet.

5 0

3 years ago