All categories

4 years ago

PLEASEEE help me!! 2 questions!!

Mathematics

1 answer:

7nadin3 [17]4 years ago

4 0

Answer:

$\frac{\sqrt{15} }{5} \\$ and 16 is a solution to the original equation.

Step-by-step explanation:

To rationalize, you take

$\frac{3 }\sqrt{15}$ times $\frac{\sqrt{15} }{\sqrt{15} }$

This will come out to be $\frac{3\sqrt{15} }{15}$ It then simplifies to $\frac{\sqrt{15} }{5} \\$ .

To cancel out a square root, square both sides. You'll find w = 16

You might be interested in

Help me with my math please

vlada-n [284]

y=4/3x-9

y=mx+b is the slope-intercept equation. Just plug the numbers into the equation. m=slope & y-int=b

3 0

4 years ago

Solve. 4(y + 4) = 32

MakcuM [25]

Answer:

y = 4

Step-by-step explanation:

4*y = 4y

4*4 = 16

4y+16=32

to get 4y alone, we subtract 16 from 32.

32-16 = 16

4y = 16

to get y alone, we divide 4 by 16

16/ 4 = 4

so, y = 4

8 0

3 years ago

Read 2 more answers

the formula F=9/5C+32 changes a temperature reading from the Celsius scale C to the Fehrenheit scale F. What temperature measure

cestrela7 [59]

Answer:

Step-by-step explanation:

F=(9/5)c + 32

F=(9/5)(-5) + 32

F=(-9) + 32

F=23

6 0

4 years ago

In 2000, a company had 1147 stores nationwide. By 2002, this total had grown to 1542. If the number of stores continues to gro

mr_godi [17]

12226 stores will be there in 2016

Solution:

The growth function is given as:

$y = a(1+r)^t$

Where,

y is the future value

a is the initial value

r is the growth rate

t is the number of years

From given,

In 2000, a company had 1147 stores nationwide

By 2002, this total had grown to 1542

Therefore,

y = 1542

a = 1147

t = 2000 to 2002 = 2 years

r = ?

Substituting we get,

$1542 = 1147(1+r)^2\\\\(1+r)^2 = \frac{1542}{1147}\\\\(1+r)^2 = 1.34437$

Taking square root of both sides

$1+ r = 1.1594\\\\r = 1.1594 - 1\\\\r = 0.1594$

If the number of stores continues to grow exponentially at the same rate, how many stores will there be in 2016?

Therefore,

y = ?

a = 1147

r = 0.1594

t = 2000 to 2016 = 16 years

Substituting we get,

$y = 1147(1 + 0.1594)^{16}\\\\y = 1147(1.1594)^{16}\\\\y = 1147 \times 10.6593\\\\y = 12226.3311 \approx 12226$

Thus 12226 stores will be there in 2016

4 0

4 years ago

Are the Trianfle similar?

Alex

Answer:

It is yes the similarity ratio is 3:4.

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers