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3 years ago

Please help the above following questions asap. Thanks A Lot !!! :)

Mathematics

2 answers:

tester [92]3 years ago

7 0

Question (a):
cos(45°) = adjacent/hypotenuse
adjacent = hypotenuse × cos(45°)
adjacent = 7 × cos(45°)
adjacent = 4.9497474683
==> The foot of the ladder is 4.95m from the wall.

laila [671]3 years ago

6 0

Since both are right triangles you can use the Pythagorean Theorem.

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Law Incorporation [45]

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3 years ago

Which are partial products for 68 × 43?

Ksivusya [100]

D.600 TINEE 40 =24,000

3 0

3 years ago

Given P(A)=0.78P(A)=0.78, P(B)=0.65P(B)=0.65 and P(A\cup B)=0.873P(A∪B)=0.873, find the value of P(A\cap B)P(A∩B), rounding to t

Sever21 [200]

Answer:

$P(A\ n\ B) = 0.557$

Step-by-step explanation:

Given

$P(A) = 0.78$

$P(B) = 0.65$

$P(A\ u\ B) = 0.873$

Required

Determine $P(A\ n\ B)$

From laws of probability, we have:

$P(A\ n\ B) = P(A) + P(B) - P(A\ u\ B)$

Substitute in values

$P(A\ n\ B) = 0.78 + 0.65 - 0.873$

$P(A\ n\ B) = 0.557$

Hence, $P(A\ n\ B)$ <em> is calculated to be 0.557</em>

8 0

3 years ago

Ans: 720cm

UkoKoshka [18]

Answer:

663

Step-by-step explanation:

the total number of students can be determined using this equation :

(total ratio of Chinese and Indian students / total ratio of students) x n = 468

total ratio of Chinese and Indian students = 4 + 8 = 12

total ratio of students 4 + 8 + 5 = 17

N = TOTAL NUMBER OF STUDENTS

12/17) x n = 468

multiply both sides of the equation by 17/12

n = 663

3 0

3 years ago

Please help!!...............................

Airida [17]

B. you have to be ready to multiply all the numbers to get your answer.

3 0

3 years ago