All categories

3 years ago

Solve the equation. y + 6 = –3y + 26

Mathematics

2 answers:

Marina CMI [18]3 years ago

7 0

The answer I think would be y = 5 let me know if I'm wrong

zzz [600]3 years ago

5 0

Y = 5 :)
I posted a pic of my work but it’s hella messy sorry lol

You might be interested in

Help it’s confusing

noname [10]

Answer:

I think is C like I said not quite sure...

8 0

2 years ago

Read 2 more answers

How do i prove 2sec^2x-2sec^2xsin^2-sin^2x-cos^2x=1

kramer

$2\sec^2x-2\sec^2x\sin^2x-\sin^2x-\cos^2x=2\sec^2x(1-\sin^2x)-(\sin^2x+\cos^2x)$

Since $\sin^2x+\cos^2x=1$ , you have

$2\sec^2x(1-\sin^2x)-(\sin^2x+\cos^2x)=2\sec^2x\cos^2x-1$

and since $\sec x=\dfrac1{\cos x}$ , you end up with $2-1=1$ .

6 0

2 years ago

Daily low temperatures in Columbus, OH in January 2014 were approximately normally distributed with a mean of 15.45 and a standa

Alona [7]

Answer: 12.10

Step-by-step explanation:

Given : Mean : $\mu = 15.45$

Standard deviation : $\sigma = 13.70$

The formula to calculate the z-score :-

$z=\dfrac{x-\mu}{\sigma}$

For x= 5 degrees

$z=\dfrac{5-15.45}{13.70}=-0.7627737226\approx-0.76$

For x= 10 degrees

$z=\dfrac{10-15.45}{13.70}=-0.397810218\approx-0.40$

The P-value : $P(-0.76$

$=0.3445783-0.2236273=0.120951\approx0.1210$

In percent , $0.1210\times100=12.10\%$

Hence, the percentage of days had a low temperature between 5 degrees and 10 degrees = 12.10%

5 0

2 years ago

The price of an item has dropped to $84 today. yesterday it was $120 . find the percentage decrease.

ddd [48]

The price of an item has dropped to $84 today. yesterday it was $120 . find the percentage decrease.

8 0

2 years ago

Dana says that all even numbers are composite.<br><br> Is she correct?

Ksenya-84 [330]

Answer:

yes

Step-by-step explanation:

all even numbers greater than two are composite numbers

8 0

3 years ago