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3 years ago

Help me quickly please

Mathematics

2 answers:

Diano4ka-milaya [45]3 years ago

5 0

Answer:

4^-3

Step-by-step explanation:

Formula : -

a^m x a^n x a^k = a^( m + n + k )

Here,

a = 4

m = - 8

n = - 1

k = 6

4^-8 x 4^-1 x 4^6

= 4^( - 8 + ( - 1 ) + 6 )

= 4^( - 8 - 1 + 6 )

= 4^( - 9 + 6 )

= 4^-3

Natasha2012 [34]3 years ago

4 0

Answer:

no question

Step-by-step explanation:

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The figure below shows a shaded rectangular region inside a large rectangle:

pshichka [43]

Answer:

b. 58%

Step-by-step explanation:

Calculate the area of the entire rectangle using the formula A = lw.

The lowercase "L" is for length.

"w" is for width.

The lighter square is 10 units long by 5 inches wide.

A = lw

A = (10 in)(5 in) Multiply

A = 50 in²

Calculate the area for the shaded rectangle, 7 inches by 3 inches.

A = lw

A = (7 in)(3 in) Multiply

A = 21 in²

Calculate the area for the non-shaded region by subtracting the shaded area from the total area.

50 in² - 21 in² = 29 in²

The chance that a point in the large rectangle will NOT be in the shaded region is 29/50.

Convert this fraction to decimal form by using a calculator. Divide the top number by the bottom number.

29/50 = 0.58

0.58 is in decimal form. To convert it to a percentage, multiply the number by 100.

0.58 = 58%

Therefore the probability that a point chosen inside the large rectangle is not in the shaded region is 58%.

5 0

3 years ago

The quotient of 24 and -8

rusak2 [61]

The answer to your question is -3

5 0

3 years ago

Read 2 more answers

PLEASE HELP!!!!!!! Hajskshisjajsjbsjansb

Elis [28]

a) range of traditional= 84.6-56.1= 28.5

range of flipped is 91.5-63.8=27.7

the flipped course has more dispersion

c)range is now be : 601-56.1=544.9

3 0

3 years ago

Solve for X<br><br> 2/3x+4=1/2x+5

mote1985 [20]

For this case we must find the value of the variable of the following equation:

$\frac {2} {3} x + 4 = \frac {1} {2} x + 5$

Subtracting $\frac {1} {2} x$ from both sides:

$\frac {2} {3} x- \frac {1} {2} x + 4 = 5\\\frac {4-3} {6} x + 4 = 5\\\frac {1} {6} x + 4 = 5$

Subtracting 4 from both sides:

$\frac {1} {6} {x} = 5-4\\\frac {1} {6} x = 1$

Multiplying by 6 on both sides:

$x = 6 * 1\\x = 6$

Answer:

$x = 6$

5 0

3 years ago

Read 2 more answers

A trough is 12 ft long and its ends have the shape of isosceles triangles that are 3 ft across at the top and have a height of 1

V125BC [204]

Answer:

$\frac{dh}{dt}=0.5ft$

Step-by-step explanation:

From the question we are told that:

Length $l=12$

Top length $l_t=3ft$

Height $h=1ft$

Rate $R=14 ft3/min$

Water rise $w=4$

Generally the equation for Velocity is mathematically given by

$V=frac{1}{2}wh'(l)\\\\V=frac{1}{2}wh'(12)$

$V=18h'^2$

Therefore

$R=18(2h)(\frac{dh}{dt})$

Where

$h=\frac{3}{4}$

Therefore

$\frac{dh}{dt}=\frac{R}{18(2h)}$

$\frac{dh}{dt}=\frac{14}{18(2.3/4)}$

$\frac{dh}{dt}=0.5ft$

8 0

3 years ago