write a story pleasee marking brainiest!

Answer:

24

Step-by-step explanation:

Take the number of students and multiply by the percentage to see how many got it right

30 *80%

Change to decimal form

30 *.8 =24

24 students got it correct

Answer:

D. Multiply the second equation by 5

The best answer would have been to multiply the first equation by 1

I hope it helps

Answer:

Carmen received $7.14 for each hour she worked.

Step-by-step explanation:

$350 for 49 hours of work

Write an equation, with hours as the variable

$350 = 49h

Divide both sides of the equation by 49 to find the unit rate

h = $7.14

Carmen received $7.14 for each hour she worked.

Hope this helps :)

Answer:

864

Step-by-step explanation:

Because the tank is a cube, all 6 faces have dimensions of 12 by 12. Therefore, the surface area is 6 * (12 * 12) = 864 (in²)

Answer: 7

Step-by-step explanation:

1 x 4 = 4

6+4= 10

10-3=7

Answer:

???

what is the question

Step-by-step explanation:

Answer:

What is your question

Step-by-step explanation:

Answer:

The answer would be 5/6.

Step-by-step explanation:

Answer:

V = h·w·t cm³

Step-by-step explanation:

The volume is calculated no different than you would with a box.

V= length x width x height and yes centimeters cubed Answer:

Step-by-step explanation:

Answer:

[tex] y = A sin (kx \pm wt)[/tex]

Where k represent the number of wave [tex]k =\frac{2\pi}{\lambda}[/tex] and [tex] w =\frac{2\pi}{T}[/tex] represent the angular frequency with T the period.

For this case we know tha T = 520 nm

And the angular frequency would be given by:

[tex] w = \frac{2\pi}{520}= \frac{pi}{260}[/tex]

So then the possible anwer for this case would be:

D.) y= sin pi/260 theta

Since is the only option with satisfy the general equation of a wave.

Step-by-step explanation:

Since the sine function can be used to model light waves we can use the following general expression:

[tex] y = A sin (kx \pm wt)[/tex]

Where k represent the number of wave [tex]k =\frac{2\pi}{\lambda}[/tex] and [tex] w =\frac{2\pi}{T}[/tex] represent the angular frequency with T the period.

For this case we know tha T = 520 nm

And the angular frequency would be given by:

[tex] w = \frac{2\pi}{520}= \frac{pi}{260}[/tex]

So then the possible anwer for this case would be:

D.) y= sin pi/260 theta

Since is the only option with satisfy the general equation of a wave.

Answer:

2x + 3 ≥ 11 or 4x - 7 ≤ 1

Step-by-step explanation:

2x + 3 ≥ 11 or 4x - 7 ≤ 1 is the correct answer for this question.

2x + 3 ≥ 11 and 4x - 7 ≤ 1

⇒ 2x ≥ 8 and 4x ≤ 8

⇒ x ≥ 4 and x ≤ 2

Hope this helps.

Answer: x = 12 degrees.

Step-by-step explanation:

The triangle ABC is a right triangle, which means that it has a right angle of 90 degrees.

This is represented by the small square on the bottom-left corner of the triangle.

The angle DBC is 78 degrees. There is also the angle of ABD, which is represented by X.

The right angle is equivalent to 78 degrees and x. You can represent this in an equation, where the sum of 78 degrees and x = 90 degrees, the right angle:

78 + x = 90

x = 12

Answer:

[tex]i^{8}=1[/tex] and [tex]i^{34}=-1[/tex] will be the answer.

Step-by-step explanation:

Since i = [tex]\sqrt{(-1)}[/tex]

i² = (-1)

[tex]i^{3}=-i[/tex]

[tex]i^{4}=(-1)^{2}[/tex] = 1

[tex]i^{8}=1^{2}[/tex] = 1

[tex](i^{8})^{2}=1[/tex]

[tex]i^{34}=[i^{17}]^2[/tex]

     = [tex](i^{8}\times i^{8}\times i)^{2}[/tex]

     = [1 × 1 × √(-1)]²

     = 1² × 1² × [√(-1)]²

     = (-1)

Therefore, [tex]i^{8}=1[/tex] and [tex]i^{34}=-1[/tex] will be the answer.

Answer:

20 miles = 32 kilometers

64 kilometers = 40 miles

Step-by-step explanation:

Answer:

the value of x is 8

x=8

HOPE IT'S HELP

I think the slope is 4.

slope=rise/run

=20/5=4

Answer:

2.6 m

Step-by-step explanation:

In the attached diagram

Consider Triangle ABC

[tex]\sin36^\circ =\dfrac{|BC|}{7.8} \\|BC|=7.8*\sin36^\circ\\|BC|=4.5847$ m[/tex]

Our goal is to determine the distance of Jen (at point A) to Holly (at Point D).

In Triangle ABC

[tex]\cos 36^\circ =\dfrac{|AC|}{7.8} \\|AC|=7.8*\cos36^\circ\\|AC|=6.3103$ m[/tex]

In Triangle BDC

Applying Pythagoras Theorem

[tex]|BD|^2=|BC|^2+|CD|^2\\5.9^2=4.5847^2+|CD|^2\\|CD|^2=5.9^2-4.5847^2\\|CD|^2=13.7905\\|CD|=\sqrt{13.7905}=3.7136$ m[/tex]

Now, |AC|=|AD|+|DC|

6.3103=|AD|+3.7136

|AD|=6.3103-3.7136

|AD|=2.5967

|AD|=2.6m (correct to the nearest tenth of a metre)

The distance of Jen from Holly is 2.6m.

Answer: nonnumeric growing patteren: A repeating pattern has a pattern unit that repeats over and over again. nonnumeris repeating patteren: A growing pattern gets bigger in the same way over and over again.

Answer:

0x+11y=-11

Step-by-step explanation:

hope this helps

plzz mark me brainliest

Answer:

y=-1

Step-by-step explanation:

-2×+7y=-5

- -2×-4y=6

11y=-11

But you don't leave the answer like that

You need to simplify

So

11y=-11

y=-11

11

y=-1

Answer:

0 (zero)

the die is six sided............

I hope this helps

Answer:

0!

Step-by-step explanation:

Answer:12m

Step-by-step explanation:

The length of the lace required will be the same as that obtained by calculating the perimeter of that table, so p= (L+W)×2

Hence, P=(4m+2m)×2

P= 12m

Answer:

2/5

Step-by-step explanation:

Answer:

1/6

Step-by-step explanation:

Out of these four card choices, for the first pick there are two even cards and four cards in total. This means that on the first pick there is a 2/4=1/2 chance that you pick an even card. On the second pick, if you do not replace the card, then there is 1 even card remaining, and 3 cards in total, leaving a probability of 1/3. Multiplying these two probabilities together, you get an overall chance of 1/6. Hope this helps!

Answer:

(9,12).

Step-by-step explanation:

If a figure dilated by a scale factor of k and origin is the center of dilation, then the relation between point and its image is defined as

[tex]P(x,y)=P'(kx,ky)[/tex]

It is given that a figure is dilated by a scale factor of 3 and origin is the center of dilation. So,

[tex]P(x,y)=P'(3x,3y)[/tex]

We need to find the image of a vertex located at (3, 4). So, substitute x=3 and y=4 in the above rule of dilation.

[tex]P(3,4)=P'(3(3),3(4))[/tex]

[tex]P(3,4)=P'(9,12)[/tex]

Therefore, the image of a vertex located at (3, 4) is (9,12).

Answer: 9,12

Step-by-step explanation:

Answer:

r = 18.8

Step-by-step explanation:

We use the circle sector area formula and solve for the radius.

I attached the work to your problem. See the attached file.

Answer:

A

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

[tex]r=\frac{\frac{4}{25} }{\frac{2}{5} } \\r=\frac{4}{25} \times \frac{5}{2} =\frac{2}{5} <1\\s_{\infty}=\frac{a}{1-r} =\frac{\frac{2}{5} }{1-\frac{2}{5} } =\frac{2}{5} \times \frac{5}{3} =\frac{2}{3}[/tex]

Answer:

1. 24/36 2. 20/35

G.C.F=2/3 G.C.F=4/7

All the answers is good!

Answer:

$1650

Based on the question, we don't need the information that Mike wants to save 1750 in 12 months.

We just need to focus on how he is saving 150 every month, for 11 months.

150*11=1650

He will save $1650 if he saves $150 every month for 11 months.

Step-by-step explanation:

Can i get brainiliest plz

Answer:

2010 cu ft to the nearest whole number.

Step-by-step explanation:

Volume = π r^2 h

= 3.14 * 4^3 * 10

= 2009.6

The volume of the water tank is approximately 502 cubic feet.

A cylinder is a 3-D figure that has a radius and a height.

The volume of a cylinder is given as πr²h.

Example:

The volume of a cup with a height of 5 cm and a radius of 2 cm is

Volume.

= 3.14 x 2 x 2 x 5

= 62.8 cm³

We have,

The volume V of a cylinder can be calculated using the formula V = πr²h, where r is the radius of the base and h is the height.

Substituting the given values, we get:

V = π (4 ft)² (10 ft)

V = 3.14 (16 ft²) (10 ft)

V = 502.4 ft³

Rounding this answer to the nearest whole number gives a final answer of V = 502 ft^3.

Therefore,

The volume of the water tank is approximately 502 cubic feet.

Learn more about cylinder here:

https://brainly.com/question/15891031

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