can someone please explain how to do this​

With the Hubble's constant H₀, the estimated age of the universe would be:

T = 8,332,452,617.49 years.

We know that the age of the universe is something near to the time the galaxies needed to reach their current distance:

T = D/V

And by Hubble's law, we know that:

V = H₀*D

Then we can write:

T = D/(H₀*D) = 1/H₀

So, we can say that the age of the universe is something near the inverse of Hubble's constant.

Then we have:

T = 1/(36 km/s*Mly) = (1/36)  s*Mly/km

Now we need to perform the correspondent change of units.

1 Mly = 1 million light-years

Such that:

1 ly = 9.461*10^12 km

Then 1 million light-years over km is equal to:

1 Mly/km = 1,000,000*(9.461*10^12 km)/km = 9.461*10^18

Then we can replace it:

T = (1/36) s*Mly/km = (1/36)*9.461*10^18 s

T = 2.628*10^17 s

This is the age in seconds, but we want it in years.

We know that:

1 year = 3.154*10^7 s

Then to change the units, we compute:

T = (2.628*10^17 s/3.154*10^7 s)* 1 yea

T = 8,332,452,617.49 years.

If you want to learn more about Hubble's constant, you can read:

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Answer:

A is x = 0

B is false

Step-by-step explanation:

because u have to solve x

and b is false

Answer:

the answer is 6

Step-by-step explanation:

there is 8 so you look at x and you see 4 then you look at y and you see 3 so you multiply 4*2=8 because you need eight so then because you multiplied 4*2 you multiply 3*2 and you get 6

14.23n - 15 = 41.92

Explanation :

In mathematics "n" denotes any non-negative integer

as in this case "n" denotes the number of necklaces Christine bought

If 1 necklace costs $14.23

n no. of necklaces costs $14.23 × n = 14.23n

She used a coupon for $15 off

so the total amount spent

= the cost for n no. of necklace – $15

= 14.23n – 15

that's technically how the equation given in the question has been derived

total amount spent = $41.92 ( stated in question )

previously we derived an equation for the total amount spent which is = 14.23n – 15

14.23n - 15 = 41.92

14.23n = 41.92 + 15

14.23n = 56.92

n = 56.92 / 14.23

n = 4

no. of necklaces bought = n = 4 necklaces

hope this helped :)

The difference in the price per bag for 150 bags versus 50 bags is $0.15 per bag.

If 150 bags on the x axis is traced to the y axis, the price of the bag is $38.

If 50 bags on the x axis is traced to the y axis, the price of the bag is $20.

Price per bag:

150 bags = 38 / 150 = $0.25

50 bags = $20 / 50 = $0.4

The difference = $0.4  $0.25 = $0.15

Please find attached the graph used in answering this question. To learn more about subtraction, please check: https://brainly.com/question/854115

Answer:

A: $0.15 per bag

Step-by-step explanation:

Answer:

11.277 or 11.28

or 11 7/25

Step-by-step explanation:

you should just multiply then turn to a mixed number. please mark as brainliest

Answer:

0.36

Step-by-step explanation:

So the first step is to count up all the socks which is 18. Then I took 2 (because you can't just wear one sock) and multiplied it by 18 and got 36. The question asked for decimal form so I divided it by 100 and got 0.36.

I hope this helps you :)

[tex]2 * 18 = 36\\\\36/100 = 0.36[/tex]

Answer :

⠀

Given :

⠀

To Find :

⠀

Solution :

We know,

[tex]{ \longrightarrow\qquad \bf\pi {r}^{2} = \bf{Area_{(Circle) } }}[/tex]

⠀

Where,

⠀

Now, Substituting the values :

[tex]{ \longrightarrow\qquad \sf\pi {r}^{2} = 25 \pi }[/tex]

⠀

Cancelling π from both sides :

[tex]{ \longrightarrow\qquad \sf \cancel\pi {r}^{2} = 25 \cancel\pi }[/tex]

[tex]{ \longrightarrow\qquad \sf {r}^{2} = 25 }[/tex]

[tex]{ \longrightarrow\qquad \sf {r}= \sqrt{25} }[/tex]

[tex]{ \longrightarrow\qquad \pmb{\bf {r}= 5 }}[/tex]

⠀

Therefore,

The inequality that represents the sentence "two more than a number is less than 14" is [tex]n+2 < 14[/tex].

Let the number be n

2 more than number = n+2

Inequality is the relation between two expressions that are not equal, employing a sign such as ≠ ‘not equal to’, > ‘greater than’, or < ‘less than’.

It is given that,

Two more than a number is less than 14

This means, [tex]n+2 < 14[/tex]

Therefore, the inequality that represents the sentence "two more than a number is less than 14" is [tex]n+2 < 14[/tex].

To get more about inequality visit:

https://brainly.com/question/11613554

Answer: 2 + n less-than 14

Or 2 + n < 14

Step-by-step explanation:

Let n = number

Two more than a number is less than 14

n + 2 < 14

Or 2 + n < 14 which is the same as

2 + n less-than 14 or B

Answer:

a) Vertex is at (-3, -1)

b) y-intercept is at (0,8)

c) x intercept is at (-4,0) and (-2,0)

d) x=-3

Step-by-step explanation:

The vertex of a parabola is the lowest or highest point, implying that all points are reflected across it. It's the only y value that doesn't have a corresponding pair.

For example, -1 and 1, -3 and 3, and so on.

The vertex is at (-3,-1) because it is the sole point without a corresponding y value (-3,-1)

The y-intercept is where the parabola meets the y axis or when the x value equals 0. To determine the y-intercept, simply find when x = 0.

intercept y: (0,8)

The x-intercepts are the same as the y-intercepts; you must determine where the parabola crosses the x-axis or when y = 0.

x intercept 1:(-4,0)

x intercept 2: (-2,0)

The axis of symmetry is also the x coordinate of the vertex which is 3 so

x = 3

The complete factorization of the polynomial x² – x – 12 is (x – 4)(x + 3). The 3 positive unit tiles. Then the correct option is B.

Polynomial is an algebraic expression that consists of variables and coefficients. Variable are called unknown. We can apply arithmetic operations such as addition, subtraction, etc. But not divisible by variable.

The partial factorization of x² – x – 12 is modeled with polynomial tiles.

The factorization will be

x² – x – 12

x² – 4x +3x – 12

(x – 4)(x + 3)

The complete factorization of the polynomial x² – x – 12 is (x – 4)(x + 3). The 3 positive unit tiles. Then the correct option is B.

More about the polynomial link is given below.

https://brainly.com/question/17822016

Answer:

5 and 6

Step-by-step explanation:

The values of the roots of the function are the same as the points where the graph meets the horizontal axis.

Check the picture below.

Answer:

x=21

Step-by-step explanation:

4x+12=96

subtract 12 from both sides

4x=84

divide both sides by 4

x=21

Answer:

x = 21

Step-by-step explanation:

to solve:

1. subtract 12 from both sides:

4x=12=96

    -12 -12

2. This gives you 4x=84. Then divide both sides by 4:

[tex]\frac{4x}{4}[/tex][tex]=\frac{84}{4}[/tex]

4x/4 = x

84/4 = 21

So, you get x = 21

Answer:

$57

Step-by-step explanation:

I'll assume the pool's dimensions are 18 x 40 x 6.

The total volume is (18 x 40 x 6) = 4320 ft^3.

Use the conversion factor (2.64 gallons/1 ft^3) to find the gallons of water in a full pool.  Full pool, cool.

Water (gal) = (4320 ft^3)*(2.64gallons/ft^3) = 11,405 gallons

At $0.005/gal, this would cost (11,405 gallons)*($0.005/gal) = $57.02

$57 to the nearest dollar.

The polynomial is prime because the provided polynomial can not be factored shown in the X-method chart.

X-method is the method to find the factors of the polynomial equation.

An x-method chart shows the product a c at the top of x and b at the bottom of x.

Above the chart is the expression,

[tex]ax^2+bx+c[/tex]

The given polynomial in the problem is,

[tex]x^2 +8x - 6[/tex]

Let's check if the factors of polynomial. To find the factor, we need, to find the two number whose sum or different is 8 and the product is 6 (6 × 1).

As there is no number which gives has the sum or different is 8 and the product is 6 (6 × 1). Thus, the above polynomial can not be factored. Thus this polynomial is prime.

Thus, the polynomial is prime because the provided polynomial can not be factored, shown in the X-method chart.

Learn more about the X method here;

https://brainly.com/question/24379507

Answer:

d

Step-by-step explanation:

cuz i know

Answer:

x=-9 and x=5

Step-by-step explanation:

x+9=0 and x-5=0

x=-9 or x=5

Answer:

A = 480 mm²

Step-by-step explanation:

the area (A) of a rhombus is calculated as

A = [tex]\frac{1}{2}[/tex] product of diagonals

The diagonals are perpendicular bisectors of each other , so

Δ XVW is a right triangle

using Pythagoras' identity in the right triangle , then

XV² + WV² = WX²

XV² + 24² = 26²

XV² + 576 = 676 ( subtract 576 from both sides )

XV² = 100 ( take square root of both sides )

XV = [tex]\sqrt{100}[/tex] = 10

then

XZ = 2 × XV = 2 × 10 = 20

and

WY = 2 × WV = 2 × 24 = 48

A = [tex]\frac{1}{2}[/tex] × XZ × WY = [tex]\frac{1}{2}[/tex] × 20 × 48 = 10 × 48 = 480 mm²

Answer:

-7

Step-by-step explanation:

[5 0 -2]-[-1 3 8]

[5-2]-[-1+11]

3-10

-7

Answer: $5.44

Step-by-step explanation:

if 1 bag of candy costs $1.36 and Mark bought 4 bags of candy, multiply 1.36 and 4 to get $5.44

Answer:

ACROSS

1. LINE

6. LINE SEGMENT

8. OBTUSE ANGLE

11. RIGHT ANGLE

12. DOT

DOWN

2. ACUTE ANGLE

3. PLAIN

4. PROTECTOR

5. VERTEX

6. STRAIGHT LINE

7. PLANE

9. STRAIGHT ANGLE

10. ANGLE

Step-by-step explanation:

Answer:

Not right.

Step-by-step explanation:

m <HGJ + m <KGJ =180°

So, m <HGJ = 180° - m <KGJ = 180° - 86° =94°

Answer:

10ft wide

22 ft tall

Step-by-step explanation:

did the test

Answer:

62

Step-by-step explanation:

step 1: find the height of half the yellow coloured triangle (right angled triangle). remember that the angle formed at the center is always 36° for a pentagon.

tan36° = opposite/ adjacent

tan36° = 3/h (h for height)

h × ( tan36°) = 3

h = 3 / tan36°

h = 4.13

step 2: calculate area of the right angled triangle

Area = 1/2 × b × h

= 1/2 × 3 × 4.13

= 6.195

step 3: calculate the area of a Pentagon

a Pentagon can be divided into ten right angled

triangle

6.195 × 10

total area = 61.95

rounded off = 62

Answer:

32

Step-by-step explanation:

if you were to cut each cake (8) into 4 pieces you would have 4 pieces for each cake you cut SO if you do 4 pieces times 8 cakes that is 32 pieces in total

Answer:

36, 54, 90

Step-by-step explanation:

angle ratio = total internal angles

2x + 3x +5x = 180

10x = 180

x = 18

2×18:3×18:5×18

36, 54, 90

Answer:

B is the answer

Step-by-step explanation:

This answer is reasonable because it shows that 398 + x (the amount that still has to be distributed) equal the total amount of middle school students who ordered a year book.

total books = 432

total books distributed = 398

total books needed = x

equation:

[tex]\tt x+398=432;x=34[/tex]

Answer:

The pool is 5 ft. deep.

Step-by-step explanation:

If he wants a pool that 500 cubic feet and the base is 100, simply do 500/100