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3 years ago

Use the cone-shaped hedge shown.

Mathematics

1 answer:

ASHA 777 [7]3 years ago

4 0

Answer:

volume of cone = 1/3πr²h

1×22×3×11

3. 7.

242

= 34.57

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On Tuesday and Wednesday of last week I left home for school at the same time. On Tuesday I drove 40 mph (miles per hour) on my

meriva

Answer:

16.67 miles

Step-by-step explanation:

We have to:

t = time (in hours) required to arrive on time.

Now the time that is late or earlier, they give it in minutes, therefore it must be spent in hours:

In other words, 3 minutes late is 3/60 hours late, therefore:

t1 = t + 3/60

2 minutes before is 2/60 hours before, therefore:

t2 = t - 2/60

The distance is the same in both directions, so v1 * t1 = v2 * t2

We know that v1 = 40 and v2 = 50 by replacing:

40 * (t + 3/60) = 50 * (t - 2/60)

40 * t + 2 = 50 * t - 5/3

40 * t - 50 * t = -5/3 - 2

-10 * t = -3.66

t = 3.6 / 10

t = 0.366 hours = 0.366 * 60 = 22 minutes

That is, in the first case it takes 25 (22 + 3) minutes, therefore:

40 * 25/60 = 16.66 miles

In the second case it takes 20 (22 -2) minutes, therefore:

50 * 20/60 = 16.66 miles

Therefore lives 16.67 miles from work

5 0

2 years ago

Please Help!!

leva [86]

Answer:

0.0069

Step-by-step explanation:

This is a power series problem.

The taylor power series expansion for sin(x) = x - x³/3! + (x^(5))/5! - (x^(7))/7! + (x^(9))/9! .......

Our question says we should use the first 5 terms to find the value of sin(π). Thus;

sin(π) = π - π³/3! + (π^(5))/5! - (π^(7))/7! + (π^(9))/9!

This gives;

π - (π^(3)/6) + (π^(5))/120 - (π^(7))/5040 + (π^(9))/362880 ≈ 0.0069

5 0

2 years ago

Solve this I'll give brainliest plz look at the picture

Diano4ka-milaya [45]

Answer:

answer is B

Step-by-step explanation:

the number that 10% of 20 is coming from 200 so 23% of 200 is 46

8 0

2 years ago

X^100+1 divide by x+1

timofeeve [1]

Answer:

x=-1

Step-by-step explanation:

$\frac{x ^{100} + 1 }{x + 1}$

$x + 1 = 0$

$x = - 1$

7 0

2 years ago

How to do question 22?

Aleks04 [339]

Answer:

A = 20sinθ(6 + 5 cosθ) cm²

Step-by-step explanation:

Drop perpendiculars DE and CF to AB.

Then, we have congruent triangles ADE and BCF, plus the rectangle CDEF.

The formula for the area of the trapezium is

A = ½(a + b)h

DE = 10sinθ

AE = 10cosθ

BF = 10cosθ

EF = CD = 12 cm

AB = AE + EF + BF = 10cosθ + 12 + 10 cosθ = 12 + 20cosθ

A = ½(a + b)h

= ½(12 +12 + 20 cosθ) × 10 sinθ

=(24 + 20 cosθ) × 5 sinθ

= 4(6 + 5cosθ) × 5sinθ

= 20sinθ(6 + 5 cosθ) cm²

6 0

3 years ago