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2 years ago

8

Who ever gets this wright first gets a thanks :D

1 answer:

Alexandra [31]2 years ago

4 0

30, ___, 19, 13.5

19 - 13.5 = 5.5

30 - 5.5 = 24.5

19 + 5.5 = 24.5

Thus, 30, 24.5, 19, 13.5.

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What is a fraction that is less than 1, with a denominator of 6 that is greater than 3/4.

Fynjy0 [20]

5/6, divide 3/4 to get 0.74 then divide 5/6 to get 0.84 for proof.

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2 years ago

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Plz help me i need it

zavuch27 [327]

Answer: $\bold{b)\quad y=\dfrac{log_4-9}{2}}$

<u>Step-by-step explanation:</u>

Inverse is when you swap the x's and y's and solve for y.

$y=4^{2x+9}\\\\\text{Swap the x's and y's:}\\x=4^{2y+9}\\\\\text{Apply }log_4\text{ to both sides:}\\log_4x=log_44^{2y+9}\\\\log_44\text{ cancels out:}\\log_4x=2y+9\\\\\text{Subtract 9 from both sides:}\\log_4x-9=2y\\\\\text{Divide both sides by 2:}\\\dfrac{log_4x-9}{2}=y$

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3 years ago

What is the median 7,11,10,13,17,23,25,25,20,18,12,9

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3 years ago

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Find the surface area of the following figure

Julli [10]

Answer:

<h2>510.4 ft²</h2>

Step-by-step explanation:

We have:

two trapezoids with bases 15ft and 7ft and height 5ft.

four rectangles 5ft × 11ft, 15ft × 11ft, 9.4ft × 11ft and 7ft × 11ft.

The formula of an area of a trapezoid:

$A_t=\dfrac{b_1+b_2}{2}\cdot h$

b₁, b₂ - bases

h - height

Substitute:

$A_t=\dfrac{15+7}{2}\cdot5=\dfrac{22}{2}\cdot5=(11)(5)=55\ ft^2$

The formula of an area of a rectangle:

$A_r=lw$

l - length

w - width

The dimensions of rectangle l × w

Subtitute:

$A_1=(5)(11)=55\ ft^2\\\\A_2=(15)(11)=165\ ft^2\\\\A_3=(9.4)(11)=103.4\ ft^2\\\\A_4=(7)(11)=77\ ft^2$

The surface area of the figure:

[tex]S.A.=2A_t+A_1+A_2+A_3+A_4\\\\S.A.=2(55)+55+165+103.4+77=510.4\ ft^2[/text]

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3 years ago

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3 years ago