Help answer this plz it’s really hard for me which is weird

Ghella [55]

Answer:

$\large\boxed{9.\ 3y^2}\\\boxed{10.\ 7y^2}$

Step-by-step explanation:

$9.\\36y^2=2\cdot2\cdot3\cdot\boxed3\cdot\boxed{y^2}\\\\21y^3=\boxed3\cdot7\cdot\boxed{y^2}\cdoty\\\\GCF(36y^2;\ 21y^3)=\boxed3\cdot\boxed{y^2}=3y^2\\\\10.\\49x^2y^2=\boxed7\cdot7\cdot x^2\cdot \boxed{y^2}\\\\21y^3=3\cdot\boxed7\cdot\boxed{y^2}\cdot y\\\\GDF(49x^2y^2;\ 21y^3)=\boxed7\cdot\boxed{y^2}=7y^2$

3 0

3 years ago

Select three ratios that are equivalent to 8:58:58, colon, 5. Choose 3 answers: Choose 3 answers: (Choice A, Checked) A 16:1016:

Snezhnost [94]

Answer:

I think the reference ratio given is wrong so the right one is

8:508:508:5

Step-by-step explanation:

Given that,

8:58:58:5

We want to find which of the option is equivalent to the given ration

Option A.

16:1016:1016:10

Divide each of the ration by

Then,

16÷2:1016÷2:1016÷2:10÷2

8:508:508:5

Option B

50:8050:8050:80

Divide through by 10

50÷10:8050÷10:8050÷10:80÷10

5:805:805:8

Option C

48:3048:3048:30

Divide through by 6

48÷6:3048÷6:3048÷6:30÷6

8:508:508:5

Option D

32:2032:2032:20

Divide through by 4

32÷4:2032÷4:2032÷4:20÷4

8:508:508:5

Option E

64:3564:3564:35

Divide through by 8

64÷8:3564÷8:3564÷8:35÷8

This doesn't have a factor

So the ratio still retain

64:3564:3564:35

So to analyse the solution,

I believe the reference ratio given is wrong, so I think the reference ratio about be 8:508:508:5

So, from the option, the equivalent to the given ratio are options A, C, and D

6 0

4 years ago

Real life Applications of Polynomials?

ahrayia [7]

Since polynomials are used to describe curves of various types, people use them in the real world to graph curves. For example, roller coaster designers may use polynomials to describe the curves in their rides. Combinations of polynomial functions are sometimes used in economics to do cost analyses.

-Shin ( and no need to thank me vote and give brainliest if you want, because i only wanna help! )

3 0

4 years ago

If <0 <90 and cos0=11/15 what is the value of sin (90-0)

Zarrin [17]

Check the picture below.

3 0

3 years ago

A train leaves Miami at 3:00 PM. A second train leaves the same city in the same direction at 8:00 PM. The second train travels

Anika [276]

Answer:

The first train travels at 58 mph and the second train travels at 203 mph.

Step-by-step explanation:

The first train left Miami at 3:00 PM.

The second train left Miami at 8:00 PM.

Let the speed of the first train be x.

The second train travels 145 mph faster than the first, that is 145 + x

The second train overtakes the first at 10:00 PM

This means that at 10:00 PM, they were both at the same location.

That is 7 hours after the first train left and 2 hours after the second train left.

Speed is given as:

s = d / t

where d = distance traveled and t = time taken

For the first train, after 7 hours traveling at speed x:

x = d / 7

=> d = 7x _______(1)

For the second train, after 2 hours, traveling at speed 145 + x:

145 + x= d / 2

=> d = 290 + 2x ____(2)

Equating (1) and (2):

7x = 290 + 2x

=> 7x - 2x = 290

5x = 290

=> x = 290/5 = 58 mph

Therefore, the first train travels at 58 mph and the second train travels at 203 mph (58 + 145)

4 0

3 years ago