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jolli1 [7]
3 years ago
8

What is the math problem answer?

Mathematics
1 answer:
azamat3 years ago
3 0

To find the mid point add both X coordinates together and divide by 2 and then do the same with the y coordinates.

X coordinate: 4 + -6 = 4-6 = -2 / 2 = -1

Y coordinate: -2 + 3 = 1 / 2 = 1/2


Midpoint: ( -1, 1/2)

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Easy question
Leviafan [203]
\dfrac{\mathrm dy}{\mathrm dt}=ky\iff\dfrac{\mathrm dy}y=k\,\mathrm dt

Integrating both sides, we get

\ln|y|=kt+C
\implies y=e^{kt+C}=e^{kt}e^C=Ce^{kt}

When t=0, we have y=10000, so that

10000=Ce^{0k}\implies C=10000

When t=4, we have y=8000, which means

8000=10000e^{4k}\implies k=\dfrac14\ln\dfrac{8000}{10000}\approx-0.0558
5 0
3 years ago
What are the features of the quadratic function ƒ(x) = x2 + 10x + 21?
belka [17]

Answer:

B is the answer

Step-by-step explanation:

The intercept is at x = 0 then y = 21 or (0,21) so A and D drop out.

The vertex (-5, -4) satisfies the equation but (-4,-5) does not so C drops out leaving B.

4 0
3 years ago
HELP ME IN 3 AND 4 PLEASEEEEE
stiks02 [169]

Answer:

3= 60 degrees

Step-by-step explanation:

Triangle= 180 degrees

60 degrees + 60 degrees = 120 degrees

180 degrees - 120 degrees = 60 degrees

8 0
3 years ago
The table shows the heights of 40 students in a class.
My name is Ann [436]

Answer:

see below

Step-by-step explanation:

There are 7 students between 120 and 124 so take the median of 122

Multiply the number of students by the median

7 * 122 =854

There are 8 students between 124 and 128 so take the median of 126

Multiply the number of students by the median

8 * 126 =1008

There are 13 students between 128 and 132 so take the median of 130

Multiply the number of students by the median

13 * 130 =1690

There are 9 students between 132 and 136 so take the median of 134

Multiply the number of students by the median

9 * 134=1206

There are 3 students between 136 and 140 so take the median of 138

Multiply the number of students by the median

3 * 138 =414

To find the mean, take the total weight and divide by the number of students

(854+1008+1690+1206+414) = 5172 lbs

7+8+13+9+3 = 40 students

5172/40 =129.3 lbs for the average

This is an estimate because we do not know that the number of students in each category will weight the median on average.  We use the mean as an estimate of their weight.  The median is the middle number of the category.

6 0
3 years ago
Solve for w.
zzz [600]

Answer:

w = 24

Step-by-step explanation:

\frac{5w}{8} = 15

Multiply both sides by 8.

5w = 15 × 8

     = 120

Find w.

w = 120 ÷ 5

w = 24

3 0
3 years ago
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