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inessss [21]
3 years ago
5

Find the length of DE using the distance formula. d =

Mathematics
1 answer:
Slav-nsk [51]3 years ago
5 0

Answer:

d = 10units

Step-by-step explanation:

The question is incomplete. Find the complete question attached

The formula for calculating the distance between two points is expressed by the formula;

d = √(x₂-x₁)²+(y₂-y₁)²

Given the coordinate points (-4, 2) and (4, -4)

d = √(4-(-4))²+(-4-2)²

d = √(4+4)²+(-6)²

d = √(8)²+(-6)²

d = √64+36

d = √100

<em>d = 10</em>

<em>Hence the distance between the points DE is 10units</em>

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A line through slope -2 and y-intercept 4
m_a_m_a [10]

Answer:

y = -2x + 4

Step-by-step explanation:

When given a slope, and y intercept, this means the question is asking us to write the equation in slope-intercept form, which is y = mx + b.

Plug in the values.

y = -2x + 4

7 0
3 years ago
If a dolphin eat 30 pounds of fish per day how much will it eat in 30 days
alexgriva [62]

Answer:480 pounds


Step-by-step explanation: 30 pounds a day equals 210 a week and 30 days equals 2 weeks and 2 days. 210 pounds of fish every week for 2 weeks equals 420 pounds plus 60 from the other 2 days equals 480


6 0
3 years ago
The sum of two numbers is 39 and the difference is 3. What are the numbers?
frosja888 [35]

Answer: 21 & 18

Step-by-step explanation:

Sum of two numbers is 39

Difference is 3

Let the numbers be x & y

X+y=39........equation 1

X-y=3...........equation 2

X=3+y............equation 3

Substitute equation 3 into equation 1

(3+y)+y=39

3+y+y=39

3+2y=39

2y=39-3

2y=36

Y=36/2

Y=18

Substitute for y in equation 2

X-y=3

X-18=3

X=3+18

X=21

The two numbers are 21 & 18

8 0
4 years ago
10 points! Solve the equation. If necessary, round your answer to the nearest tenth.
Julli [10]
If x² = 196, then we must do the inverse (square root) to find x. However, the square root of any positive number will always be ± (plus or minus).

That means you have to do:

√196 = x
x = <span>±14. 

We can check this by doing:

14 </span>× 14 = 196
-14 × -14 = 196

Therefore the answer is B) -14, 14. 
7 0
3 years ago
Read 2 more answers
Enrique estimates that his utilities will cost him $86.00 per month over the courses of the next 3 years. What is his total esti
Dafna1 [17]

Answer:

$3096

Step-by-step explanation:

There are 12 months in 1 year.

3 × 12 = 36

There are 36 months in 3 years.

$86 × 36 = $3096

4 0
2 years ago
Read 2 more answers
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