Ask question

Ask question

All categories

3 years ago

9

How do you solve these ? I really need help I have a test coming up so please anyone i can't sleep because im scared I'll do bad

on the test

1 answer:

White raven [17]3 years ago

5 0

Here is your answer, you just count to 10... Simple as that.

You might be interested in

Find what % of 70 is 12

marshall27 [118]

Answer:

Percentage Calculator: 12 is what percent of 70? = 17.14.

Step-by-step explanation:

plzzzzzzz Mark my answer in brainlist

and follow me

4 0

2 years ago

Is the ratio 50 yards to 18 seconds a rate? Explain.

Anna11 [10]

Answer:50:18

Step-by-step explanation:

I think that this is the answer because 50 yards can be ran in 18 seconds so for every 18 seconds you get 50 yards

7 0

4 years ago

Solve (x + 1)2 – 4(x + 1) + 2 = 0 using substitution.

solniwko [45]

For this case we have to:

Let $u = x + 1$

So:

$u ^ 2-4u + 2 = 0$

We have the solution will be given by:

$u = \frac {-b \pm \sqrt {b ^ 2-4 (a) (c)}} {2 (a)}$

Where:

$a = 1\\b = -4\\c = 2$

Substituting:

$u = \frac {- (- 4) \pm \sqrt {(- 4) ^ 2-4 (1) (2)}} {2 (1)}\\u = \frac {4 \pm \sqrt {16-8}} {2}\\u = \frac {4 \pm \sqrt {8}} {2}\\u = \frac {4 \pm \sqrt {2 ^ 2 * 2}} {2}\\u = \frac {4 \pm2 \sqrt {2}} {2}$

The solutions are:

$u_ {1} = \frac {4 + 2 \sqrt {2}} {2} = 2 + \sqrt {2}\\u_ {2} = \frac {4-2 \sqrt {2}} {2} = 2- \sqrt {2}$

Returning the change:

$2+ \sqrt {2} = x_ {1} +1\\x_ {1} = 1 + \sqrt {2}\\2- \sqrt {2} = x_ {2} +1\\x_ {2} = 1- \sqrt {2}$

Answer:

$x_ {1} = 1 + \sqrt {2}\\x_ {2} = 1- \sqrt {2}$

3 0

3 years ago

Read 2 more answers

WHAT IS THE UNIT RATE 1000 MILES PER SECOND

MaRussiya [10]

1/1000 but idk for sure

3 0

3 years ago

Log(2x+5)+10=13 SHOW WORK PLEASE

seraphim [82]

Answer:

x = 497.5

Step-by-step explanation:

that's the correct answer with solution

6 0

3 years ago