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BlackZzzverrR [31]
3 years ago
14

Find the distance between the given point (2,-2) and (-4,-7)

Mathematics
1 answer:
tatiyna3 years ago
7 0

Answer:

-11

Step-by-step explanation:

that's my answer please follow me

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The area of a rectangle is 36 square inches, and its perimeter is 26 inches. What are the length and width of the rectangle?
gogolik [260]

Answer:

9 and 4

Step-by-step explanation:

5 0
3 years ago
A bead is chosen randomly from a golf bag. If 40% of the beads are Spears and 30% of the Spheres are blue what's the probability
Anit [1.1K]

Answer:

c. 12%

Step-by-step explanation:

40% of the beads are spears, you can convert it to 0.4

30% of the spheres are blue, you can convert it to 0.3

=> probability choosing blue sphere = (0.4 * 0.3)*100(%) = 12%

My explaination may not really clear but the answer is correct. Hope this help!

5 0
4 years ago
Read 2 more answers
The temperature of a cup of coffee varies according to Newton's Law of Cooling: dT dt equals negative k times the quantity T min
Maslowich

Answer:

67.3°C

Step-by-step explanation:

A = 25, T(0) = 100, T(1) = 90, find T(4)

dT/dt = -k(T - A)

d(T - A)/dt = -k(T - A)

d(T - A)/(T - A) = -k dt

ln(T - A) = lnC - kt

T(t) -A=Ce^{-kt}\\T(t) = A + Ce^{-kt} = 25 + Ce^{-kt}\\T(0) = 25 + C = 100\\C=75

T(t) = 25 + 75e^{-kt}\\T(1) = 25 + 75e^{-k} = 90\\75e^{-k} = 65\\e^{-k} = \frac{65}{75}, k = ln\frac{75}{65} = 0.1431\\T(t) = 25+75e^{-0.1431t}\\T(4) = 25+75e^{-0.1431\times4} = 67.3

4 0
3 years ago
Party planners recommend that, for every eight guests, two orders of appetizers be provided. Which function reflects this ratio?
Bond [772]

STEP - BY - STEP EXPLANATION

What to find?

The function that reflects the given ratios given.

Given:

For every eight guests, 2 orders.

To determine the function;

Let y be the number of orders and x be the number of guests.

If for every eight guest, there must be 2 orders, then we will have;

y=\frac{1}{4}x

So that, if there are 8 guests, that is; when x=8

y=\frac{1}{4}(8)=2

ANSWER

y= 1/4 x

8 0
1 year ago
What is a factor of 16 but not a multiple of 4
anastassius [24]

Answer:

2 is a factor of 16 but not a multiple of 4.

Step-by-step explanation:

You can multiply 2*8 to get 16, making it a factor, but you cannot multiply 4 by a whole number to get 2.

7 0
3 years ago
Read 2 more answers
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