Can someone help me please ?!?!?

Answer:

5/2

Step-by-step explanation:

ratio of sides=(√25)/(√4)=5/2

Answer:

x= 6  x= -2

Step-by-step explanation:

x^2-4x-12=0

What 2 numbers multiply to -12 and add to -4

-6*2 = -12

-6+2 = -4

(x-6)(x+2) = 0

Using the zero product property

x-6 =0  x+2 =0

x= 6  x= -2

Answer:

25%

1/4

Step-by-step explanation:

There are 40 beans in total. Only 10 of those are orange and lemon flavored.

9514 1404 393

Answer:

  B. False

Step-by-step explanation:

In order for segments to form a triangle, the sum of the shorter two must exceed the length of the longest. Here, that is ...

  5 + 6 vs 12

  11 vs 12

The short segments are not long enough to form a triangle. The assertion is FALSE.

The experimental probability is calculated based on the results of the experiment; since the name Ted was chosen 26 times out of 123, the experimental probability is [tex]\boxed{\frac{26}{123}}.[/tex]

Typically, the theoretical probability assumes that events are chosen randomly; since the name Ted is one of the 6 in the hat, the theoretical probability is [tex]\boxed{\frac{1}{6}}.[/tex]

If we increased the number of names in the hat, we would expect both the experimental and theoretical probability to decrease, since there are now more names to choose from. Similarly, if we decreased the number of names in the hat, the experimental and theoretical probability would increase.

Answer:

x+y= 21

0.10x+0.25y= 4.20

Step-by-step explanation:

You can write a system of equations that model the situation in which one equation would determine the number of coins by adding up all the coins she has and the other one would indicate the total amount Maria has by adding up the results of multiplying the value of each type of coin for the quantity:

x+y= 21

0.10x+0.25y= 4.20

x= amount of dimes

y= amount of quarters

Answer:

Step-by-step explanation:

Let x be a random variable representing the number of the members of a men’s club that wear black vests to their club meetings. This is a binomial distribution since the outcomes are two ways. It is either they wear black or red. The probability of success, p = 70/100 = 0.7

The probability of failure, q would be 1 - p = 1 - 0.7 = 0.3

a) Number of samples, n = 10

We want to determine P(x ≤ 8)

From the binomial distribution calculator,

P(x ≤ 8) = 0.851

Answer:

The probability that at least 8 of the vest worn will be black is 0.75490

Step-by-step explanation:

The parameters given are;

The percentage of black vest worn = 70%, p₀ = 0.7

Number of men in sample, n = 10

Required  number of men who wore black = 8

Proportion of sample [tex]\hat p[/tex] = 8/10 = 0.8

The z score of a proportion is given by the relation;

[tex]z = \dfrac{\hat p - p_0}{\sqrt{\dfrac{p_0(1 - p_0)}{n} } }[/tex]

Plugging in the vales, we have;

[tex]z = \dfrac{0.8 - 0.7}{\sqrt{\dfrac{0.7(1 - 0.7)}{10} } } = 0.69[/tex]

From the z table we have probability = p(z < 0.69) = 0.75490

The probability that at least 8 of the vest worn will be black = 0.75490.

Answer:

The corresponding sides have the same slope so the answer is QR and MN, SR and PN and MP and QS. Hope this helps!

Answer:

Length of ribbon = 4 ×  ∛(V)

Step-by-step explanation:

The question is incomplete without the options of the expression to choose from.

Find attached the diagram used in solving the question.

Volume of a cube = side × side × side

Let side = s

Volume of a cube = side³ = s³

Volume of cube box = V

V = s³

s = ∛(V)

The shape of the top of a cube box is a square.

Length of the ribbon to be used to glue round the top of a cube box = Perimeter of a square

Perimeter of a square = length + length + length + length  = 4× length

Length = side

Perimeter of a square = 4×s

Perimeter of a square = 4 ×  ∛(V)

Length of ribbon = 4 ×  ∛(V)

Answer:  2: an equation in the form y = mx + b

1. An x/y table may have two entries with the same x; not a function in that case.

2.  That's a line with a slope; for each x there's a single y, definitely a function

3.  Ordered pairs -- like the table, the same x with different ys is possible, which wouldn't be a function.

4. List of numbers  -- a list isn't a function, at least not without more context

Answer:

A. 4p=80

Step-by-step explanation:

Total Cost of 4 tickets=$80

Price=p

Quantity=4

Total cost=price×quantity

80=p×4

80=4p

80=4p is the equation that can be used to determine price

From the equation

80=4p

Divide both sides by 4

80/4=4p/4

20=p

Price is $20 per ticket

Answer:

4p = 80

Step-by-step explanation:

Total cost before tax = $80

Number of tickets purchased = 4

Price 'p' of each ticket

p = total price of ticket / number of tickets purchased

p = 80 / 4

Multiplying both sides by 4

4p = 80

Answer:

Volume of the pyramid is 198 yards^3

Step-by-step explanation:

Here, we are asked to calculate the volume of the pyramid given the area of its base and its height.

Mathematically, the volume of the pyramid can be calculated using the formula below;

Volume of pyramid = Area of heptagonal base * height of pyramid

Volume of pyramid = 30 * 6.6 = 198 yards^3

Answer:

21 litres

Step-by-step explanation:

1 litre = 1000 cubic cm

The rectangular tank is 50 cm long, 20 cm wide, and 33 cm high.

The tank is in the shape of a rectangular prism.

The volume of a rectangular prism is:

V = l * w * h

where l = length

w = width

h = height

Therefor, its volume is:

V = 50 * 20 * 33 = 33000 cubic cm = 33 litres

The tank is filled to a depth of 12 cm.

The volume of water in the tank is:

V = 50 * 20 * 12 = 12000 cubic cm = 12 litres

Therefore, the number of litres left to fill the tank is:

33 - 12 = 21 litres

The liters of water needed to fill the tank is 21 liters.

The first step is to determine the volume of the tank. The tank has the shape of a cuboid. Thus, the formula for the volume of a cuboid would be used to determine the volume of the tank.

Volume of the tank = length x width x height

50 x 20 x 33 = 33,000

1 liter = 1000 cm

33,000 / 1000 = 33

The tank is already filled with 12 liters of water.

Water needed = 33 - 12 = 21 liters

To learn more about volume of a cuboid, please check: https://brainly.com/question/46030

Answer:

30% of 2,000 = 600 calories.

Step-by-step explanation:

Answer:

A = 20 square units ; Type in 20

Step-by-step explanation:

The simplest way to derive the area of this figure, is to first consider what the shape is itself;

[tex]Criteria of Shape - 2 Bases, 1 pair of Parallel Sides, Composed of two triangles, one square -From this we See that - Shape ; Trapezoid ( neither Right nor Isoceles )[/tex]

Knowing that the shape is a Trapezoid, consider the formula ( Average of Bases ) * Height as to solve for it's area;

[tex]Length Of Base 1 - 3 units,\\Length of Base 2 - 7 units,\\Length of Altitude - 4 units,\\[/tex]

Now let us substitute these values, solving for the Area;

[tex]Area Of Trapezoid - ( ( Base 1 + Base 2 ) / 2 ) * Height,\\ ( ( Base 1 + Base 2 ) / 2 ) * Height = ( ( 3 + 7 ) / 2 ) * 4,\\( 10 ) / 2 * 4 = 5 * 4 = 20 square units,\\\\Conclusion ; Area of Trapezoid = 20 square units[/tex]

Solution; A = 20 square units

Answer:

A=20 (square units)

Step-by-step explanation:

B=XW=8-1=7

b=YZ=5-2=3

h=5-1=4

A=(B+b)*h/2

A=(7+3)*4/2=10*2

A=20 square units

Answer:

450 portugals

Step-by-step explanation:

in this question, we are tasked with calculating the number of portugals which are picked by the farmer

Firstly, let the number of portugals picked be p and the number of oranges picked be r.

Thus;

p + r = 600 ••••••••••(i)

Secondly there are 3 times as many oranges as there are portugals;

That would be;

3 * r = p

3r = p. •••••••••(ii)

substitute ii into i

3r + r = 600

4r = 600

r = 600/4

r = 150

P = 3r

p = 3 * 150 = 450

Answer:

One adult ticket is $4 and one child ticket is $7

Step-by-step explanation:

Make a system of equations

2x + 10y = 78

8x + 5y = 67

Solve by elimination, multiply the 2nd equation by -2

2x +10y = 78

-16x -10y = -134

Add the equations

-14x = -56

x = 4

The price of one adult ticket is $4

Plug 4 in as x to find y

2(4) + 10y = 78

8 + 10y = 78

10y = 70

y = 7

The price of one child ticket is $7

Answer:

y = 15

Step-by-step explanation:

It's given in this question that y varies directly with x.

That means, y ∝ x

⇒ y = kx (where k is the proportionality constant)

If  y = 18 when x = 6,

⇒ 18 = 6k

⇒  k = 3

Therefore, relation between x and y is,

y = 3x

From this relation, if x = 5

y = 3×5

y = 15

Therefore, for x = 15 value of y will be 15.

Answer:

B

Step-by-step explanation:

f(x) = 3(x + 5) + 4/x

To find f(a + 2) , put a + 2 in place of every x

f(a + 2) = 3 (a + 2 + 5) + 4/(a + 2)

f(a + 2) = 3 (a + 7) + 4/(a + 2)

Answer:

the slope would be -5

Step-by-step explanation:

in linear equations, the slope of the line is the coefficient of x

so in this case, it is -5

Answer: we can make 15,504 different math tests

Step-by-step explanation:

Ok, we have a bank with 20 questions (Q1, Q2........ , Q20)

and we want to make a test with 15 of those 20 questions.

As the order of the questions does not matter in the thest ( is the same if the order is Q1, Q2, ...., Q15 than if the order is Q15, Q14, ....., Q1 )

So we only want the number of combinations.

When we have N elements and we want to create groups of K elements, the total number of combinations is:

[tex]C = \frac{N!}{(N - K)!*K!}[/tex]

Here N = 20 and K = 15

[tex]C = \frac{20!}{5!*15!} = \frac{20*19*18*17*16}{5*4*3*2*1} = 15,504[/tex]

So we can make 15,504 different math tests

Answer:

525 pages in one hour.

Step-by-step explanation:

1 hour = 60 minutes

70 pages in 8 minutes

[tex]x[/tex] in 60 minutes

8x=4200

525

Answer:

525 pages in 1 hour

Step-by-step explanation:

Use proportions

70 pages --> 8 mins

? pages --> 60 mins

60/8 = 7.5

That means ?/7.5 = 70, then ? = 70*7.5, ? = 525

Answer:

C

Step-by-step explanation:

Given

4x² = 64 ( divide both sides by 4 )

x² = 16 ( take the square root of both sides )

x = ± [tex]\sqrt{16}[/tex] = ± 4

Solutions are x = - 4 and x = 4 → C

Answer:

I think that the answer would be, 0.813

Step-by-step explanation:

5.8736

7.349

equals 0.812845

If you round it you get 0.813

Answer:

The answer is D

Step-by-step explanation:

These two matrices cannot be added. To be eligible to add two matrices together, they must have the same dimensions. In this case, they have two different dimensions so the answer is D.

Hope this helps! (Please consider giving brainliest)

Answer:

(-3,3)

Step-by-step explanation:

just took the test on edg.

Answer:(–3, 3)

Step-by-step explanation:

Answer:          1/2

If 2 students are drinking punch

and 2 are drinking lemonade that would mean it would be 2/4

but if you were to simplify by dividing both by 2

it would be 1/2.

Step-by-step explanation:

f(4) = -4 -4

= -8

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