3 years ago

I need help with this problem

Mathematics

2 answers:

vovangra [49]3 years ago

8 0

I'm pretty sure its length x height so the answer is 18.75.

nataly862011 [7]3 years ago

8 0

Answer:

12.5

Step-by-step explanation:

Area of Trapezium = 1/2 ( A + B ) × H

A = 2.5

B = 7.5

H = 2.5

1/2 ( 2.5 + 7.5 ) × 2.5=

1/2 ( 10 ) × 2.5=

5 × 2.5 = 12.5

You might be interested in

What is the slope of the line y=3x/7 + 4/7

Natalija [7]

Answer:

the slope of y=3x/7+4/7 is M=3 over 7

5 0

3 years ago

Find the volume of the sphere. Either enter an exact answer in terms of \piπpi or use 3.143.143, point, 14 for \piπpi and round

olga55 [171]

Answer:

3053.63

Step-by-step explanation:

Use the equation for sphere volume: $V=\frac{4}{3}\pi r^3$

Plug the values in and get $V=\frac{4}{3}\pi 9^3=3053.62805929$

≈ 3053.63

Note: exact value of pi used.

8 0

2 years ago

Read 2 more answers

Select the correct answer.

Crazy boy [7]

Answer:

Step-by-step explanation:

to get from 3/4 to 12/x you gotta multiple 3 times 4 which is 12 so the bottom multiple that by 4 also which 4 x 4 is 16

3 0

3 years ago

Read 2 more answers

HELPPP!! A sports team was selling popcorn. They paid $3.50 per bag and sold it for $4 per bag.What is the percent mark up? roun

Papessa [141]

Answer:

.50

Step-by-step explanation:

8 0

3 years ago

Alabama Instruments Company has set up a production line to manufacture a new calculator. The rate of production of these calcul

umka21 [38]

Answer:

The number of calculators is 4871

Step-by-step explanation:

If we integrate dx/dt we get x, which is the number of calculators. To find the number of calculators between the beginning of third week to the end of fourth week (the beginning of fifth week), this integration must be evaluated at t between 3 and 5.

$x=\int\limits^5_3 {\frac{dx}{dt}} \, dt =\int\limits^5_3 {5000(1-\frac{100}{(t+10)^2})} \, dt$

the result of the integration is:

$x=5000(t+\frac{100}{t+10})$ to be evaluated between 3 and 5, which is:

$x=5000(5+\frac{100}{5+10})-5000(3+\frac{100}{3+10})=\frac{190000}{39}=4871.8$

6 0

3 years ago