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Aleonysh [2.5K]
2 years ago
10

Please can you help me with this perpendicular line question?

Mathematics
1 answer:
kirill [66]2 years ago
8 0

Answer: y=-x+4

Step-by-step explanation:

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Write the factors of a2-b2.​
nignag [31]
Answer:
(a + b) and (a - b)
3 0
3 years ago
A movie theater determines its profit, in dollars, using the expression 10n - 1000, where n is the number of tickets sold.
Alja [10]

Answer:

E

600

Step-by-step explanation:

10n - 1000 = 5000

10n = 6000

n = 600

HOPE THIS HELPS

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7 0
2 years ago
I need help again...
Vsevolod [243]
1. 80cm
2. 48cm
3. 6 cm
8 0
3 years ago
Two cruise ships leave the same port with a 35° angle between their path. Cruise A is traveling at 18 miles per hour and Cruise
GuDViN [60]

Answer:

20\:\mathrm{miles}

Step-by-step explanation:

After travelling two hours, the two cruise ships form a triangle. One of the legs  of this triangle will be the distance Cruise A travelled, and another will be the distance Cruise B travelled. We can find the distance they travel using:

s=\frac{d}{t}, d=s\cdot t

Cruise A is travelling at 18 miles per hour for 2 hours. Therefore, Cruise A has travelled:

d=s\cdot t=18\cdot 2=36\:\mathrm{miles}

Cruise B is travelling at 15 miles per hour for 2 hours. Therefore, Cruise B has travelled:

d=s\cdot t=15\cdot 2=30\:\mathrm{miles}

Because we are given the angle between these legs, we can use the Law of Cosines to find the third leg. The Law of Cosines is given by:

c^2=a^2+b^2-2ab\cos C, where a, b, and c are interchangeable. Let c represent the distance between the two cruises. We have:

c^2=36^2+30^2-2\cdot36\cdot30\cdot \cos 35^{\circ},\\c^2=426.63,\\c\approx \fbox{$20\:\mathrm{miles}$}(one significant figure).

8 0
2 years ago
Read 2 more answers
Bella is wrapping a cube-shaped gift box that measures 8.5 inches along each edge. How many square inches of wrapping paper is n
dybincka [34]

we know that

The surface area of a cube is equal to

S=6*A

where

A is the area of one face of the cube

in this problem

A=8.5^{2}= 72.25\ in ^{2}

Find the surface area

S=6*72.25=433.5\ in ^{2}

therefore

<u>the answer is</u>

433.5\ in ^{2}  of wrapping paper is needed to cover the box completely

7 0
3 years ago
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