All categories

3 years ago

Please answer this correctly

Mathematics

1 answer:

jeka57 [31]3 years ago

6 0

Answer:

169.5 yd²

Step-by-step explanation:

See attachment.

In situations like this, ALWAYS (!) make as sketch.

Divide the areas by adding dotted lines on sensible places, and write in the missing numbers for the correct distances.

The only possible difficult one is the triangle, which is the half of a rectangle. So you are dealing with a series of areas of rectangles. That is really easy if you understand what you are doing.

Total area =

area 1 + area 2 + area 3 + area 4

10*4 + 4*7 + 3*13 + (0.5 * 7*17)

40 + 28 + 42 + 59.5

Total area = 169.5 yd²

You might be interested in

The Council of American Beet Farmers estimate that 60% of Americans love beets.

harkovskaia [24]

Answer: 13% or 0.1314

Step-by-step explanation: Binomial PDF on the calculator or by hand its

22 nCr 15 (0.60)^15(1-0.6)^7 = 0.131378

5 0

3 years ago

Solve the inequality for X.

vovikov84 [41]

Answer:

Present afe of Payal = x yrs.

Therefore, according to question,

Present age of Arav = x/3 yrs.

After 12 yrs.,

Age of Payal = (x+12) yrs.

Hence, we have,

Age of Aarav = [(x/3)+12] yrs.

3 0

3 years ago

A helicopter hovers 1450 feet above a small island. The figure shows that the angle of depression from the helicopter to point P

puteri [66]

Answer:

1668 feet.

Step-by-step explanation:

We know the opposite side of the right triangle and we need the adjacent side, so we use the tangent function.

If the distance required is x (adj side) we have:

tan 41 = opp/adj

tan 41 = 1450/x

x = 1450 / tan 41

= 1668.03

5 0

3 years ago

A random sample of 25 fields of spring wheat has a mean yield of 27.6 bushels per acre and standard deviation of 5.69 bushels pe

ale4655 [162]

Answer:

Step 1 z(c) = 2,323

CI = ( 25 ; 30,2 )

Step-by-step explanation:

Normal Distribution:

Sample size n = 25

Sample mean μ = 27,6

Sample standard deviation s = 5,69

CI = 98 % then α = 1 - 0,98 α = 0,02 α/2 = 0,01

From z-table we don´t find z (score) for 0,01 directly, we need to interpolate between z = 2,32 and z = 2,33

For 0,0099 z score is 2,33

for 0,0102 z score is 2,32

Δ 0,0003 0,01

Then by rule of three

for Δ 0,0003 ⇒ 0,01

for Δ (0,01- 0,0102) ⇒ x

0,0003 0,01

0,0002 x

x = 0,0067

then z (score for 0,01) = 2,33 - 0,0067 z(c) = 2,3233

round to three decimal places z(c) = 2,323

Step 2:

CI = μ ± z(c) * s/√n ⇒ 27,6 ± (2,323 * 5,69)/5

CI = 27,6 ± 2,6436

round to one decimal place

CI = 27,6 ± 2,6

CI = ( 25 ; 30,2 )

8 0

3 years ago

The variables y and x have a proportional relationship, and y = 15 when x = 3.

atroni [7]

Answer:

I think 2

Step-by-step explanation:

y=15 and x=3 5x3=15 and 2x2=4

4 0

3 years ago

Read 2 more answers