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2 years ago

Help ! Easy 7th grade work ! I’ll give brainliest.

Mathematics

2 answers:

nika2105 [10]2 years ago

7 0

5/7 because it is greater than 1/4

wolverine [178]2 years ago

4 0

Answer:

4/7-(1/7)

Step-by-step explanation:

It does not answer five like the rest do. If you need help with how the others equal 5, just ask! ^^

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What is 8d(2d+8)+d squared Simplify THANKS GUYS

pshichka [43]

8*2=16
8*8=64
d+d+d=3d
16+64=80d3rd

6 0

2 years ago

Scientists found that a certain particle of dust doubles every 30 minutes. If the scientists tests this out with 21 grams of the

monitta

Answer: $1.663\times 10^{30}\ gm$

Step-by-step explanation:

Given

Population of dust particle doubles every 30 minutes

If the initial sample is 21 grams

The model to predict the population will be

$\Rightarrow P=21\cdot 2^{2t}$

Where t=time in hours

A day has 24 hours . So, for 2 days time is 48 hours

Population is given by

$\Rightarrow P=21\cdot 2^{2\times 48}\\\\\Rightarrow P=21\times 2^{96}\\\\\Rightarrow P=1.663\times 10^{30}\ gm$

7 0

2 years ago

Write the equation of the line that is perpendicular to the line y = 2x + 2 and passes through the point (6, 3).

sdas [7]

There asking for the equation, and the possible answers are

y = 2x + 6 y = −one halfx + 3 y = −one halfx + 6 y = 2x + 3

4 0

2 years ago

What is the equation of the line that passes through the point (4,-7) and has a

aalyn [17]

Answer:

$y = -\frac{1}{2} x -5$

point slope form....

y - (-7) = -1/2(x-4)

y + 7 = -x/2 + 2

2y + 14 = -x + 4

2y = -x -10

y = -1/2 x - 5

Step-by-step explanation:

7 0

2 years ago

What is the solution for the equation 5/3b^3-2b^2-5=2/b^3-2

PilotLPTM [1.2K]

I looked it up and it said it was c

7 0

2 years ago

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