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2 years ago

6) The population of rats doubles every 8 months. If there were 23 rats to start how many

Mathematics

2 answers:

taurus [48]2 years ago

7 0

Answer:

736

Step-by-step explanation:

Fittoniya [83]2 years ago

7 0

Answer:

368 rats

Step-by-step explanation:

First, you find how many times the population doubles. 32/8 = 4, so the population doubles 4 times.

So, the number of rats = 23 * (2^4) = 368

Or, instead of using exponents, you can double the population four times separately.

23 * 2 = 46

46 * 2 = 92

92 * 2 = 184

184 * 2 = 368 rats

P.S. Please give me brainliest, I need it to rank up.

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A force of 19 newtons is applied on a cart of 2 kilograms, and it experiences a frictional force of 1.7 newtons. What is the acc

arsen [322]

Answer:

option A

a = 8.65 m/s²

Step-by-step explanation:

Given that,

force applied on a cart (forward direction) = 19N

frictional force experience by cart (backward direction) = 1.7N

mass of the cart = 2 kg

Frictional force always opposes applied force, so the Resultant force on the cart would have to be 19N - 1.7N.

Formula to use

Resultant force = ma

plug values in the formula

19 - 1.7 = 2(a)

17.3 = 2(a)

a = 8.65 m/s²

so the acceleration of the cart is 8.65m/s²

4 0

3 years ago

Read 2 more answers

How do you simplify -(5x+1)

Roman55 [17]

-1(5x+1)
-5x-1
the (-) in front is just a short way to put (-1)

6 0

3 years ago

Find the product.

4vir4ik [10]

Answer :

$6{y}^{4} {z}^{2} + 12 {y}^{3} {z}^{2}-3 {y}^{3} {z}+3 {y}^{2} {z}^{2}$

Step-by-step explanation :

To find the product of

$3 {y}^{2} z(2 {y}^{2} z + 4yz - y + z)$

First we expand the bracket ,

it implies that, we use the expression outside the bracket to multiply individual expressions inside the bracket.

Hence

$3 {y}^{2} z(2 {y}^{2} z + 4yz - y + z)$

$= 3 {y}^{2} z(2 {y}^{2} z) + 3 {y}^{2} z(4yz) - 3 {y}^{2} z(y )+3 {y}^{2} z( z)$

we now apply the law of indices

${a}^{m} \times {a}^{n} = {a}^{m+n}$

meaning, when you are multiplying two expressions with the same bases , repeat one of the bases and add the exponents.

Then, simplify to obtain

$= 6{y}^{4} {z}^{2} + 12 {y}^{3} {z}^{2}-3{y}^{3} {z}+3 {y}^{2} {z}^{2}$

3 0

2 years ago

Geometry: The rectangle shown has a perimeter of 34cm and the given area. Its length is 5 more than twice it's width. Write and

Thepotemich [5.8K]

w - width

2w + 5 - length

w + w + (2w + 5) + (2w + 5) = 6w + 10 - perimeter

34 cm - perimeter

The equation:

6w + 10 = 34 <em>subtract 10 from both sides</em>

6w = 24 <em>divide both sides by 6</em>

w = 4 cm

2w + 5 = 2(4) + 5 = 8 + 5 = 13 cm

<h3>Answer: Width = 4cm, Length = 13cm</h3>

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2 years ago

If a residual for a data point is 0, then the line of best fit is horizontal.<br> O True<br> O False

Lemur [1.5K]

Answer:

false

Step-by-step explanation:

false

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2 years ago