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ser-zykov [4K]
3 years ago
11

Can u help me. if answer is correct, i will give u brainliest

Mathematics
1 answer:
den301095 [7]3 years ago
7 0

Answer:

135 units²

Step-by-step explanation:

The area (A) of a parallelogram is calculated as

A = bh ( b is the base and h the perpendicular height )

To calculate h use Pythagoras' identity on the right triangle on the left

h² + 8² = 17²

h² + 64 = 289 ( subtract 64 from both sides )

h² = 225 ( take the square root of both sides )

h = \sqrt{225} = 15 , thus

A = 9 × 15 = 135 units²

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The number of blocks has 9 in the ones place. The numberin the hundreds place i is one more that the numberin the tens place. Th
marysya [2.9K]

Answer:

There are 659 blocks

Step-by-step explanation:

The number of blocks has 9 in the ones place.

The number in the hundreds place is one more that the number in the tens place.

Let the number in the tens place is x.

Number in the hundreds place = 1+x

These two numbers equal 11.

ATQ,

x+1+x = 11

2x + 1 = 11

2x = 10

x = 5

No in the tens place = 5

No. in the hundreds place = 1+5 = 6

Hebnce, the number is 659.

5 0
3 years ago
Pleaseeeeeeeeeeeeeeeeeeeeeeeeee help me LOVE YA BYE! have a great day
Lesechka [4]

Answer:

12/15

Step-by-step explanation:

4/5 x 3/3 = 12/15

6 0
2 years ago
Read 2 more answers
One variable examined is the survival rate 10 years after tagging. The scientists observed that 10 of the 50 metal tagged pengui
Oksana_A [137]

Answer:  90% confidence interval would be (-0.2483,-0.0717)

Step-by-step explanation:

Since we have given that

n₁ = 50

Number of metal tagged penguins survived = 10

So, p_m=\dfrac{10}{50}=0.2

n₂ = 50

Number of electronic tagged penguins = 18

So, p_e=\dfrac{18}{50}=0.36

So, at 90% confidence interval, z = 1.28

So, interval would be

(p_m-p_e)\pm z\sqrt{\dfrac{p_m(1-p_m)}{n}+\dfrac{p_e(1-p_e)}{n}}\\\\=(0.2-0.36)\pm 1.28\sqrt{\dfrac{0.2\times 0.8}{50}+\dfrac{0.36\times 0.64}{50}}\\\\=-0.16\pm 0.0883\\\\=(-0.16-0.0883,-0.16+0.0883)\\\\=(-0.2483,-0.0717)

Hence, 90% confidence interval would be

(-0.2483,-0.0717)

6 0
3 years ago
PLEASE HELP IM SO CONFUSEDDD
ella [17]

Answer:

x = 30

Step-by-step explanation:

The figures are similar, thus the ratios of corresponding sides are equal, that is

\frac{x}{18} = \frac{45}{27} ( cross- multiply )

27x = 810 ( divide both sides by 27 )

x = 30

6 0
3 years ago
Please help ASAP!!!!!
LenKa [72]

Answer: first answer choice (1/3)  (p+45)

Step-by-step explanation:

to do this, factor out 1/3 from each element

so divide 1/3 p by 1/3 and 15 by 1/3

(1/3 p) / (1/3 ) = p

15 / (1/3) = 15 * 3 = 45

now put 1/3 outside of the parentheses

(1/3)  (p+45)

8 0
3 years ago
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