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3 years ago

Pls answer quickly, thanks !!

Mathematics

1 answer:

wlad13 [49]3 years ago

5 0

Answer:

14762 ft³

Step-by-step explanation:

Volume of top prism

V = 61 x 8 x (19 - 3)
V = 488 x 16
V = 7808 ft³

Volume of bottom prism

V = 61 x 38 x 3
V = 183 x 38
V = 6954 ft³

Total volume = Volume (top) + Volume (bottom)

7808 + 6954
14762 ft³

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I need help someone pls

Alborosie

Answer:

≈ 66.5 m

Step-by-step explanation:

Using the sine ratio in the right triangle

sin12° = $\frac{opposite}{hypotenuse}$ = $\frac{d}{320}$ ( multiply both sides by 320 )

320 × sin12° = d , then

d ≈ 66.5 m ( to 1 dec. place )

8 0

3 years ago

I’m just not getting it! I need step by step.

Alexus [3.1K]

Answer:

$7x + 10 + x + 20 + 2x \\ 7x + x + 2x + 10 + 20 \\ 10 x + 30 \\ x = \frac{30 }{10} \\ x = 3 \\ (7x + 10) = 7 \times 3 + 10 = 31 \\ (x + 20) = 3 + 20 = 23 \\ (2 \times 3) = 6$

Step-by-step explanation:

Please mark as brainliest

8 0

3 years ago

The population of a certain species of insect is given by a differentiable function P, where P(t) is the number of insects in th

Step2247 [10]

Answer:

$\frac{dP}{dt} \ =\ \frac{1}{5}P$

Step-by-step explanation:

Given

Variation: Directly Proportional

Insects = 10 million when Rate = 2 million

i.e. $P = 10\ million$ when $\frac{dP}{dt} = 2\ million$

Required

Determine the differential equation for the scenario

The variation can be represented as:

$\frac{dP}{dt} \ \alpha\ P$

Which means that the rate at which the insects increase with time is directly proportional to the number of insects

Convert to equation

$\frac{dP}{dt} \ =\ k * P$

$\frac{dP}{dt} \ =\ kP$

Substitute values for $\frac{dP}{dt}$ and P

$2\ million = k * 10\ million$

Make k the subject

$k = \frac{2\ million}{10\ million}$

$k = \frac{2}{10}$

$k = \frac{1}{5}$

Substitute $\frac{1}{5}$ for k in $\frac{dP}{dt} \ =\ k * P$

$\frac{dP}{dt} \ =\ \frac{1}{5}* P$

$\frac{dP}{dt} \ =\ \frac{1}{5}P$

8 0

3 years ago

If h(x) = 48, find x

babymother [125]

Answer: 0523 i think this the answer i don't know

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

OK. these questions are worth ALL my points (55) !

Ratling [72]

Answer:

1. -7

2. 212

3. -49

4.-1,991

5. 78

6. -16

7. 2

8. 100

9. 16

10. 16

11. 13

12. 75

13. |12| = 12

14.|12| = 12

15. |8|

16.| 10|

17.15

18. 1,400

Step-by-step explanation:

6 0

3 years ago