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3 years ago

PLEASE HELP ASAP!!! I NEED CORRECT ANSWERS ONLY PLEASE!!!

Mathematics

2 answers:

denis-greek [22]3 years ago

8 0

You have to use trigonometry

defon3 years ago

4 0

Answer:

Step-by-step explanation:

Triangle ABC is a right angle triangle.

From the given right angle triangle,

AB represents the hypotenuse of the right angle triangle.

With ∠A as the reference angle,

AC represents the adjacent side of the right angle triangle.

BC represents the opposite side of the right angle triangle.

To determine AC, we would apply the cosine trigonometric ratio

Cos θ = opposite side/hypotenuse. Therefore,

Cos 56 = AC/6

AC = 6Cos 56 = 6 × 0.5592

AC = 3.3552

Rounding to the nearest tenth, it becomes

3.4

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An African elephant’s tail is 51 inches long. The elephant’s whole body is 6times as long. How long is the the whole elephant in

Mekhanik [1.2K]

Tail: 51 inches or 4 feet and 3 inches

Whole Length: 6 times as much

51 x 6 = 306

306/12 = 25.5

The elephant is 25 feet and 6 inches long.

4 0

3 years ago

A map represents every 18 kilometers with 1 centimeter. If two locations are actually 54 kilometers apart, what is the distance

Irina-Kira [14]

Answer:

3 centimeters

Step-by-step explanation:

You can find this by dividing 54 by 18, or if you know your timetables, you know that 18x3 is 54.

6 0

3 years ago

Read 2 more answers

A sample of n = 10 automobiles was selected, and each was subjected to a 5-mph crash test. Denoting a car with no visible damage

solmaris [256]

Answer:

a) From definition the proportion of successes would be:

$\hat p = \frac{x}{n} = \frac{7}{7+3}= 0.7$

b) Data : 1,1,0,0,1,1,1,0,1,1

x = 7 for this case

$\hat p = \frac{7}{10}=0.7$

The proportion in part (a) is exactly equal to the mean in part (b)

c) We have actually 7 successes and 3 fails and we want this condition:

$\frac{x}{n}=0.6$

The new value of n would be 25 so then we can solve for x and we got:

$x = 25*0.6= 15$

So we need 15 successes and we have 7 so then we need $15-7 = 8$ successes in the new 15 cars in order to satisfy the condition.

Step-by-step explanation:

Data: S S F F S S S F S S

S means success and F damage. We have 7 successes and 3 damages for this case

(a) What is the value of the sample proportion of successes x/n?(

From definition the proportion of successes would be:

$\hat p = \frac{x}{n} = \frac{7}{7+3}= 0.7$

(b) Replace each S with a 1 and each F with a 0. Then calculate x for this numerically coded sample.How does x compare with x/n?

Data : 1,1,0,0,1,1,1,0,1,1

x = 7 for this case

$\hat p = \frac{7}{10}=0.7$

The proportion in part (a) is exactly equal to the mean in part (b)

(c) Suppose it is decided to include 15 more cars in the experiment. How many of these would have to be S's to give x/n = 0.6 for the entire sample of 25 cars?

We have actually 7 successes and 3 fails and we want this condition:

$\frac{x}{n}=0.6$

The new value of n would be 25 so then we can solve for x and we got:

$x = 25*0.6= 15$

So we need 15 successes and we have 7 so then we need $15-7 = 8$ successes in the new 15 cars in order to satisfy the condition.

7 0

4 years ago

PLZZZZZZZZZZ I WILL GIVE BRAINLIEST AND 15PTS!!!!!!!!!!!!!!

vazorg [7]

Answer: ( 0, 2 )

Step-by-step explanation:

You have to put coordinates of each graph on these equations y = -x + 2 and y = (1/2)x + 2. If putting coordinates satisfies both equations, then that coordinate will be the solution.

For example, let's put (0, 2) to equations.

y = -x + 2

2 = -0 + 2

2 = 2, true

y = (1/2)x + 2

2 = (1/2) × 0 + 2

2 = 2, true

So, ( 0, 2 ) is the solution.

7 0

3 years ago

Read 2 more answers

X/2 + 4/5 = 1/2 solve for x

Flura [38]

Answer:

Step-by-step explanation:

x/2 + 4/5 = 1/2

×2 ×2

x + 8/5 = 1

-8/5 -8/5

x = 5/5 - 8/5

x = -3/5

3 0

3 years ago