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HACTEHA [7]
4 years ago
10

Write the equation of the line passing through the points (-4,-7) and (8,-13)

Mathematics
1 answer:
xxTIMURxx [149]4 years ago
3 0

Answer:

Step-by-step explanation:

The equation of the line that passes through the points

(-4,-7) and (8,-13)

is

y=-1/2x-9

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An airplane over the Pacific Ocean sights an atoll at an 7° angle of depression. If the plane is 663 m above the water, how many
Illusion [34]
You need to <span>draw the diagram to understand the problem easily. Teh diagram will show the right triangle, acute angle with the base  7º, height is 663 m, and "x" is the base of the triangle. 

using the tangent ratio: 

tan</span>Θ = opposite / adjacent
<span>
tan7º = 663 m / x 

x = 663 m / tan7º
x = 5,399.7 m 

change m to km. 1,000 m = 1km

5,399.7m * 1km/1,000 m = 5,399.7 km/1000 = 5.3997 km or 5.4 km

B. 5.4 km </span>
4 0
4 years ago
help please! the pair of figures to the right are similar. what is the ratio of the perimeters and the ratio of the areas?
jasenka [17]

Answer:

Perimeters = 3 in : 7 in

Areas = 9 in² : 49 in²

Step-by-step explanation:

    <em>If the figures are </em><em>squares</em><em>, and the measurements are the length of that sides (as you have said), then we will do the following. </em>

[The left square]

P = 4a

P = 4(15)

P = 60 in

-

A = a²

A = 15²

A = 225 in²

[The right square]

P = 4a

P = 4(35)

P = 140 in

-

A = a²

A = (35)²

A = 1,225 in²

[Simplifying ratios]

Perimeters = 60 in : 140 in

Perimeters = 6 in : 14 in

Perimeters = 3 in : 7 in

-

Areas = 225 in² : 1,225 in²

Areas = 45 in² : 245 in²

Areas = 9 in² : 49 in²

4 0
3 years ago
Subtracting one from the product of five and x gives the same values as adding 10 to the product of three and what is the answer
Komok [63]

Answer:i need to know

Step-by-step explanation:

What is it please tell me

7 0
3 years ago
Serena has $50 to spend. She buys 5 packages of hotdog buns and 5 packages of beef hotdogs. Each package of buns cost $3.85 and
Ne4ueva [31]

Answer:

Serena will have $9.75 left after her purchases.

Step-by-step explanation:

5 packages of buns= 3.85x5= 19.25

5 packages of hotdogs= 4.20x5= 21

19.25+21= 40.25

50-40.25= 9.75

6 0
3 years ago
Read 2 more answers
What is this answer to the picture i put below
garik1379 [7]

I dont know sorry

So sorry really wish i could help

3 0
3 years ago
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