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3 years ago

Answer with evidence I give points and brainiest and friend me for personal points

Mathematics

2 answers:

uysha [10]3 years ago

5 0

Answer:

12.75ft²

Step-by-step explanation:

Step 1: Determine the formula for the area of a trapezoid

The formula for the area of a trapezoid is A=1/2(b1+b2)*h where b1 and b2 are the bases of the trapezoid and h is the height of the trapezoid.

Step 2: List given information

b1=8ft

b2=9ft

h=1.5ft

Step 3: Plug given variables into the formula

A=1/2(b1+b2)*h

A=1/2(8+9)*1.5

A=1/2(17)*1.5

A=8.5*1.5

A=12.75

So the area of the seat is 12.75ft²

Reika [66]3 years ago

3 0

Answer:

12.75 feet

Step-by-step explanation:

To find the area of a trapezoid, you must take the first base plus the second base and then multiply by the height divided by 2. [(8 * 9)1.5/2] Doing this will get you 12.75. Then, you add the label from the problem which is feet.

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12. Find the distance between points P(-1, 2) and Q(-3, 4).

marusya05 [52]

Answer:

D=2.82

Step-by-step explanation:

Here we are given with two coordinates and asked to determine the distance between them.

Here we are going to use the distance formula, which is given as under

$D=\sqrt{(y_2-y_1)^2+(x_2-x_1)^2}$

Where

$(x_1,y_1) = (-1,2)$

$(x_2,y_2) = (-3,4)$

Replacing these values in the distance formula

$D =\sqrt{(-1-(-3))^2+(2-4)^2}$

$D =\sqrt{(-1+3)^2+(-2)^2}$

$D =\sqrt{(2)^2+4}$

$D =\sqrt{4+4}$

$D =\sqrt{8}$

$D= 2.8284$

Hence the Distance is 2.82 units

3 0

3 years ago

The perimeter of a playing field for a certain sport is 300ft. The field is a rectangle, and the length is 48ft longer than the

lara31 [8.8K]

Answer:

Width of the rectangular field = $102 feet$

Step-by-step explanation:

Perimeter of the field= $300feet$

Length of the field= $48 feet$

Width=?

Perimeter of a rectangular field= $2(Length+Width)$

$300= 2(48+Width)\\\\150=48+Width\\\\Width=150-48\\\\Width=102 feet$

The Width of the rectangular field is $102 feet$

4 0

3 years ago

Read 2 more answers

Trigonometry y=? x=?

tino4ka555 [31]

Answer:

y=9cm

x=90°

Step-by-step explanation:

y=9cm(being perpendicular)

x=90°=being perpendicular)

3 0

2 years ago

M=-3/7 ; (-5,6) what is the equation of the line

exis [7]

Y - 6 = -3/7(x + 5)

y - 42/7 = -3/7x - 15/7

y = -3/7x + 27/7

6 0

3 years ago

I'm giving 50 points and brainliest answer to whoever can answer this... Please show your work so I can try to understand it xD

Oksana_A [137]

Ok, to solve this first you have to set up your proportion:

9/150=x/230

/ is a fraction

x= the number of vials it will take to treat 230 patients

in order to solve this, you have to cross multiply:

9 x 230= 2070

150 · x= 150x

so you get 150x=2070

then divide 2070 by 150

2070/150= 13.8

so it would take 13.8 vials of medicine to treat 230 patients

7 0

2 years ago

Read 2 more answers