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Dominik [7]
3 years ago
7

D is directly proportional to t2 When t = 4, D = 8 Find the positive value of t when D = 50

Mathematics
2 answers:
alekssr [168]3 years ago
5 0

Answer: either 46 or 25 is your answer

Step-by-step explanation: Brainliest pls

olasank [31]3 years ago
3 0

Answer:

<em>t = 10</em>

Step-by-step explanation:

<u>Proportions</u>

D is directly proportional to t squared. This can be written as:

D = kt^2

Where k is the proportionality constant. It can be calculated by substituting the given condition in the formula, when t=4, D=8:

8 = k4^2=16k

Solving for k:

k=\frac{8}{16}=\frac{1}{2}

Thus, the proportional relationship is:

\displaystyle D = \frac{1}{2}t^2

When D=50, the value of t can be found by solving for t:

\displaystyle 50 = \frac{1}{2}t^2

Multiplying by 2:

t^2=100

Taking the square root:

t=\sqrt{100}

The positive value of t is:

t = 10

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URGENT! WILL GIVE BRAINLY FOR CORRECT ANSWER
Minchanka [31]

Answer:

sorry if im wrong i think wrong numbers. plz check

Step-by-step explanation:

The center of dilation of the question is (-4,-3) .

let say that

x0=-4

y0=-3

Label the image A'B'C'

The new coordinate would be

A(-4,-1)

x=4

y=-1

x'=x0+ 2(x - x0)

x'= -4+ 2(-4 +4)

x'=-4

y'=y0+ 2(y - y0)

y'= -3+ 2(-1 +3)

y'=-3 +4= 1

______________________________

B(-4,-3)

x=-4

y=-3

x'=x0+ 2(x - x0)

x'= -4+ 2(-4 +4)

x'=-4

y'=y0+ 2(y - y0)

y'= -3+ 2(-3 +3)

y'=-3

______________________________

C(-1,-3)

x=-1

y=-3

x'=x0+ 2(x - x0)

x'= -4+ 2(-1 +4)

x'=-4 +6= 2

y'=y0+ 2(y - y0)

y'= -3+ 2(-3 +3)

y'=-3

A'(-4,1)

B'(-4,-3)

C'(2,-3)

3 0
2 years ago
Factorise completely 3m^2-48​
Helen [10]

Answer:

3 (m^2 - 16)

Step-by-step explanation:

factoring means taking out a common multiple of all the terms in the expression

in this case, if you multiply 3 and m^2, 3 and -16, you would get 3m^2-48​

so you take the three and put it outside of the parenthesis that contains the factored terms

this leaves you with 3 (m^2 - 16)

3 0
3 years ago
If g(x) = -3(x) - 5 then g(?) = 25<br> 10<br> -20<br> 5<br> -10
kompoz [17]

Answer:

D) -10

Step-by-step explanation:

We will assign g(x) to be equal to 25, and then solve for x:

25 = -3x-5

30 = -3x

10 = -x

-10 = x

So D is correct

7 0
3 years ago
Read 2 more answers
What is 6w =30;5,6,7 how is it to be solved?
Gennadij [26K]
6w=30; divide 30 by 6 to the w by itself; the answer is 5

3 0
3 years ago
What expressions is equivalent to −2(x−5)?
Ksenya-84 [330]

Answer:

-2x + 10

Step-by-step explanation:

Distribute -2 to x - 5 to simplify the expression. So we get: -2(x - 5) = -2x + 10.

6 0
2 years ago
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