Ask question

Ask question

All categories

Scorpion4ik [409]

2 years ago

8

Please help i really need it !!!!

1 answer:

Vika [28.1K]2 years ago

4 0

C, i think you forgot an x
(x+11)+(x-7)
x+11+x-7
x+x+4
2x+4

You might be interested in

1 + 5sin^2x= 7sin^2x solve trig equation. Can you show me how to solve this trig equation?

pantera1 [17]

Answer: $x = \frac{\pi}{4}\pm k\frac{\pi}{2}\,\,\,\,\,\,k=\{0,1,2,...\}$

Step by step:

$1 + 5\sin^2x= 7\sin^2x\\\sin^2 x\rightarrow z\\1 + 5z = 7z\\2z = 1\\z = \frac{1}{2}\implies \sin^2 x = \frac{1}{2}\\|\sin x| = \frac{1}{\sqrt{2}}\\\sin x = \pm\frac{1}{\sqrt{2}}=\pm\frac{\sqrt{2}}{2}\\\implies x = \frac{\pi}{4}\pm k\frac{\pi}{2}\,\,\,\,\,\,k=\{0,1,2,...\}$

(Used a table of common angles)

8 0

2 years ago

Bacteria triples every hour. How much bacteria will there be after two days if they started with 13,000 bacteria.

timofeeve [1]

13,000 • 3 = 1 hour = 39,000
Now we take the one hours worth 39,000 • 48 (hours in two days) = 1,872,000
Hope this helps!

6 0

2 years ago

Question 2 (4 points)

Volgvan

Answer:

43

Step-by-step explanation:

5 0

2 years ago

Kari bought 3 boxes of cookies to share with a book club. Each box contains 12 cookies. The expression StartFraction 36 over p E

sweet-ann [11.9K]

Answer:12 cookies

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

Sarita used 54 ounces of apples to make an apple pie.How many pounds and ounces of apple did sarita use?

Inga [223]

Answer:

C

Step-by-step explanation:

16 ounces is equal to 1 pound

Divide 54 by 16 and you get 3.375

You know that there are 3 pounds now, so subtract 3 from what you got to get 0.375

Now multiply 0.375 by 16 to turn it back into ounces, which is 6

3 pounds and 6 ounces is answer choice C

8 0

2 years ago

Read 2 more answers