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3 years ago

Simplify to a single power of 4: 4^7/4^6

Mathematics

2 answers:

Sedbober [7]3 years ago

5 0

The answer is 4 there is a calculator for this stuff on google

Temka [501]3 years ago

4 0

Step-by-step explanation:

$\frac{ {4}^{7} }{ {4}^{6} }$

= 4

.......

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Mikayla bought 5 skirts at $x each. Three of the 5 skirts came with a matching top for an additional $9 each. Write and simplify

strojnjashka [21]

So Mikayla bought 5 shirts for $x dollars each
this part of the expression we can call 5x
then 3 of the shirts came with an additional $9 each. 9x3=27
so the expression is 5x+27

4 0

3 years ago

help me pls! The radius of Circle A is 7 mm. The radius of Circle B is 5 mm greater than the radius of Circle A. The radius of C

bazaltina [42]

Answer:

3.45 times

Step-by-step explanation:

530.93/153.94 = 3.4489411459

5 0

2 years ago

A model rocket is launched with an initial velocity of 240 ft/s. The height, h, in feet, of the rocket t seconds after the launc

Setler [38]

Answer:

About 1.85 seconds and 13.15 seconds.

Step-by-step explanation:

The height (in feet) of the rocket t seconds after launch is given by the equation:

$h = -16t^2 + 240 t$

And we want to determine how many seconds after launch will be rocket be 390 feet above the ground.

Thus, let h = 390 and solve for t:

$390 = -16t^2 +240t$

Isolate:

$-16t^2 + 240 t - 390 = 0$

Simplify:

$8t^2 - 120t + 195 = 0$

We can use the quadratic formula:

$\displaystyle x = \frac{-b\pm\sqrt{b^2 -4ac}}{2a}$

In this case, a = 8, b = -120, and c = 195. Hence:

$\displaystyle t = \frac{-(-120)\pm \sqrt{(-120)^2 - 4(8)(195)}}{2(8)}$

Evaluate:

$\displaystyle t = \frac{120\pm\sqrt{8160}}{16}$

Simplify:

$\displaystyle t = \frac{120\pm4\sqrt{510}}{16} = \frac{30\pm\sqrt{510}}{4}$

Thus, our two solutions are:

$\displaystyle t = \frac{30+ \sqrt{510}}{4} \approx 13.15 \text{ or } t = \frac{30-\sqrt{510}}{4} \approx 1.85$

Hence, the rocket will be 390 feet above the ground after about 1.85 seconds and again after about 13.15 seconds.

4 0

3 years ago

Given the picture below, find x and both angles.

sashaice [31]

3x+2+x+8=180; 4x+10=180; 4x=170; x= 170/4= 42.5

Angle on top is x+8=42.5+8=50.8

Angle on the bottom is 3x+2=3•42.5+2= 129.5

7 0

3 years ago

Q divided by 7 equals 6 have a nice day!

Hatshy [7]

Answer:

q = 42

Step-by-step explanation:

$\frac{q}{7}=6\\\\\frac{q}{7}*7=6*7\\\\ \boxed{q=42}$

Hope this helps.

8 0

3 years ago