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MrRa [10]
4 years ago
10

Can someone help me with these 4 questions

Mathematics
1 answer:
olya-2409 [2.1K]4 years ago
4 0
15. 145. 360-90-95-30
16. 90

The other picture number 16 again I already did that one.
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The perimeter of the garden is 84 feet. The length of one side of fencing is 8 yards. What is the area of the garden?
sergey [27]

Answer:

214

Step-by-step explanation:

7 0
3 years ago
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A ship traveled for 4 hours heading west and for 5 hours heading north. If the total distance traveled was 119 miles, and the sh
Eduardwww [97]

To answer this problem, we will use the formula of hypotenuse:

c^2 = a^2 + b^2

Where,

c = total distance traveled / displacement = 119 miles

<span>a = distance traveled north = 5 hours * x mph =  5 x</span>

b = distance traveled west = 4 hours * (x + 5) mph = 4 (x + 5)

Substituting to the equation:

119^2 = (5 x)^2 + [4(x + 5)]^2

14,161 = 25 x^2 + 16 (x + 5)^2

14,161 = 25 x^2 + 16 (x^2 + 10 x + 25)

14,161 = 25 x^2 + 16 x^2 + 160 x + 400

0 = 41 x^2 + 160 x – 13,761

x =[ - b ± sqrt (b^2 – 4ac)]/ 2a

x = [- 160 ± sqrt (160^2 – 4 * 41 * (– 13,761))] / 2 * 41

x = - 1.95 ± 18.42

x = -20.37 , 16.47

Since speed cannot be negative, therefore x = 16.47

Therefore the speed of the ship travelling west is:

<span>x + 5 = 21.47 mph         (ANSWER)</span>

4 0
3 years ago
Comparing Decimals
Flauer [41]
5+0.07 because 0.07 is the same as that but plus the 5!! hope this helps.
3 0
3 years ago
What is the initial value for the function f(x)=3(5/4)x
In-s [12.5K]
For
f(x)=3\left(\dfrac{5}{4}\right)^{x}
you seem to want to know the value of f(0). Put 0 where x is, then evaluate.
f(0)=3\left(\dfrac{5}{4}\right)^{0}=3\cdot 1=3

The initial value of the function is 3.

_____
You will observe that when x=0, the exponential term evaluates to 1. This is true regardless of its base. Thus f(0) is always the coefficient of the exponential term—in this case, 3.
7 0
3 years ago
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Which is a true statement about the dot plot?
LenaWriter [7]

I think that the answer is C

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3 years ago
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