Edmundo bought 4 trading cards yesterday. he bought some more trading cards today. now he has 12 trading cards. if n represents the number of trading cards Edmundo bought today, which equation is correct?

Answer:

Step-by-step explanation:

B and C is crorect answer tha ks

The range of the frame width for the considered case is 0.5 (feet), because for this case, it can be at max of 0.5 feet, and at minimum of 0 feet.

For a set of data, the range is the difference between the maximum and minimum value. It sort of gives an idea of spread of the data.

For this case, we're given that:

Perimeter of a rectangle = 2(length + width)

Let 'l' denotes length, and 'w' denotes width, then we get:

[tex]Perimeter \leq 4\\2(l+w) \leq 4\\2(1.5 + w) \leq 4\\\\\text{Dividing both the sides by 2}\\\\1.5 + w \leq 2\\\\\text{Subtracting 1.5 from both the sides so as to get 'w' on one side}\\\\w \leq 0.5[/tex]

Now since the lowest value of width of a frame can be zero only, therefore, we get:

[tex]0 \leq w \leq 0.5[/tex]

Thus, the range of values 'w' can assume is: 0.5 - 0 = 0.5

Thus, the range of the frame width for the considered case is 0.5 (feet), because for this case, it can be at max of 0.5 feet, and at minimum of 0 feet.

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Answer:

don't use this this is just a guess but I think that it is the lowest possible one so A It coulld be wrong

Step-by-step explanation:

E

Step-by-step explanation:

Answer:

Part A=7

Part B=7

Step-by-step explanation:

Part A = 7+9=16

Part B = 4 times 7= 28

Answer: 14 Animals

Step-by-step explanation: Made of 3 dogs and 11 Cats

Dogs( 11-8)

The probability helps us to know the chances of an event occurring. The probability of winning a small prize in the carnival is 35.714%.

The probability helps us to know the chances of an event occurring.

[tex]\rm Probability=\dfrac{Desired\ Outcomes}{Total\ Number\ of\ outcomes\ possible}[/tex]

Given that there is a total of 56 ducks floating in the pond, out of which 20 ducks are marked as small-prize winners. Therefore, the probability of winning a small price can be written as:

[tex]\rm Probability=\dfrac{Desired\ Outcomes}{Total\ Number\ of\ outcomes\ possible}\\\\\\\rm Probability=\dfrac{\text{Nnmber of small price ducks}}{\text{Total number of ducks}}\\\\\\Probability = \dfrac{20}{56} = 0.35714 = 35.714\%[/tex]

Hence, the probability of winning a small prize in the carnival is 35.714%.

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Answer:

1440 square inches of fabric

Step-by-step explanation:

Answer:

1440 square inches of fabric

Step-by-step explanation:

Solve for 1 banner

Area of 1 banner:

12*20/2

12*10

120.

12 banners,

12*120

= 1440 square inches of fabric

(or other types of material)

Melanie write the quadratic equation x^2 + 4x - 2 according to the directions that write a trinomial that could not be factored using integers.

Any equation of the form [tex]\rm ax^2+bx+c=0[/tex]  where x is variable and a, b, and c are any real numbers where a ≠ 0 is called a quadratic equation.

Patricia wrote:

[tex]\rm x^2+5x-14=0\\\\\rm x^2 -2x+7x-14=0\\\\\rm (x-2)(x+7)[/tex]

Shelly wrote:

[tex]\rm x^2-x-30=0\\\\\rm x^2-6x+5x-30=0\\\\\rm (x-6)(x+5)=0[/tex]

Melanie wrote:

[tex]\rm x^2+4x-2=0[/tex]

Here is the value of D:

[tex]\rm D = \sqrt{4^2-4(1)(-2)}[/tex]

D = √24

Lisa wrote:

[tex]\rm x^2+4x-5=0\\\\\rm x^2-x+5x-5=0\\\\\rm (x-1)(x+5)[/tex]

Thus, Melanie write the quadratic equation x^2 + 4x - 2 according to the directions that write a trinomial that could not be factored using integers.

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Answer:

D + E = 2x⁴ + x³ –  3x²   + x + 1

D - E  = 9x³ +  x²   + x – 3

Step-by-step explanation:

D = x⁴ + 5x³ – x² + x – 1

E = x⁴ – 4x³ – 2x² + 2

D + E :                                                   D - E :

 x⁴ + 5x³ –  x²   + x – 1                          x⁴ + 5x³ –  x²   + x – 1  

+                                                         –                                                                  

 x⁴ – 4x³ – 2x² + 0 + 2                         x⁴ – 4x³ – 2x² + 0 + 2

_________________                      _________________

2x⁴ + x³ –  3x²   + x + 1                          0  +  9x³ +  x²   + x – 3

Answer:

-4 and 4

Step-by-step explanation:

Method 1

Apply Difference of Two Squares Formula: [tex]a^2-b^2=(a+b)(a-b)[/tex]

Given  [tex]x^2-16=0[/tex]

Rewrite 16 as 4²

Therefore, [tex]a^2=x^2[/tex] and [tex]b^2=4^2[/tex]

[tex]\implies a = \sqrt{x^2}=x[/tex]

[tex]\implies b=\sqrt{4^2} =4[/tex]

[tex]\implies x^2-16^2=(x+4)(x-4)[/tex]

[tex]\implies (x+4)(x-4)=0[/tex]

[tex]\implies (x+4)=0 \implies x=-4[/tex]

[tex]\implies (x-4)=0 \implies x=4[/tex]

Method 2

Given equation:

[tex]x^2-16=0[/tex]

Add 16 to both sides:

[tex]\implies x^2-16+16=0 + 16[/tex]

[tex]\implies x^2=16[/tex]

Square root both sides:

[tex]\implies \sqrt{x^2}=\sqrt{16}[/tex]

[tex]\implies x=\pm4[/tex]

Therefore, x = -4, x = 4

To have the same number of pennies in both sides, we should add 6 pennies, so Charlotte is correct.

We want to have the same number of pennies on both sides, on one side we have 23 pennies, and in the other 17. So we will add x pennies to the last side, such that we get:

23 = 17 + x

This is a linear equation. To solve it, we need to isolate the variable x, we can do that by subtracting 17 in both sides:

23 - 17 = 17 + x - 17

6 = x

This means that the solution is 6, so we should add 6 pennies, meaning that Charlotte is correct.

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Answer:

Picture so I can solve it

The mass of the object which is at 3 meters off the ground (earth assumingly), with the potential energy of 150 joules is given by: Option C: 5.10 kg

Gravitational potential energy is the energy which a body posses because of its position.

The gravitational potential energy of a body is given as,

[tex]U=mgh[/tex]

Here, (m) is the mass of the body, (g) is the gravitational accelaration and (h) is the height of the body.

Here, for the second object, we have:

Let its mass be m kg, then:

[tex]U=mgh\\\\150 = m(9.8)(3)\\\\m = 50/9.8 \approx 5.10 \: \rm kg[/tex]

Thus, the mass of the object which is at 3 meters off the ground (earth assumingly), with the potential energy of 150 joules is given by: Option C: 5.10 kg

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Answer:

x = 8.67 and y = 10

Step-by-step explanation:

In right angled triangle

cos 60⁰ = 5/y

1/2 = 5/y

y = 10

in right angled triangle,

tan 60⁰ = x/5

√3 = x/5

x = 5√3 = 5 × 1.73 = 8.65

x = 8.67

Answer:

2/3 lemon's per cup.

Step-by-step explanation:

10÷15=2÷3 .

Please give me brainliest.Thank you. :-):-)

Answer:

should be a. took the test and It was horrible. I remember trying and forgot how to do everything beother

Step-by-step explanation:

no balls

Answer:

y = 3/2x - 1/2

all steps explained in pic attached below :)

Answer:5cm

Step-by-step explanation: Area =length × breadth

Volume = length ×breadth ×height

180= Area ×height

180 = 36×h

180÷36=h

Ans 5

Answer:

The answer is (A) or 3/4.

Step-by-step explanation:

By plugging in a through d, the only one that gave an acurate answer was A.

2(6-2x) - 2x = 2(5+x)-4

turns into

2(6-2[3/4]) - 2[3/4] = 2(5+[3/4]) -4

Hope this helps!

Answer:

Step-by-step explanation:

In the question we're given with an equation i.e.,

And we are asked to find the value of x .

Solution :

[tex] \longmapsto \: 2 ( 6 - 2x ) - 2x = 2 ( 5 + x ) - 4 [/tex]

Step 1 : Solving parenthesis by multiplying it with 2 on both the sides :

[tex] \longmapsto \: 12 - \bold{4x} - \bold{2x} = \bold{10} + 2x - \bold{4}[/tex]

Step 2 : Adding like terms on left hand side and subtracting like terms on right hand side :

[tex] \longmapsto \: 12 - 6x = 2x + 6[/tex]

Step 3 : Transposing 12 to right hand side and 2x to left hand side :

[tex] \longmapsto \: -2x - 6x = 6 - 12[/tex]

On further calculations we get :

[tex] \longmapsto \: \cancel{ - }8x = \cancel{- }6[/tex]

Step 4 : Transposing 8 to right hand side :

[tex] \longmapsto \: x = \frac{\cancel{6}}{\cancel{8}} [/tex]

Step 5 : Cancelling 6/8 to their simplest form :

[tex] \longmapsto \: \pink{\boxed{x = \frac{3}{4} }}[/tex]

Answer:

7/-13 + 4/-13 = -7/13 - 4/13 = - 11/13

The roots of the given quadratic equation are 6 and -4.

The given quadratic equation is:

[tex](x-4)(x+2)=16[/tex]

Any equation of the form [tex]ax^{2} +bx+c=0[/tex] is called a quadratic equation where [tex]a\neq 0[/tex].

[tex]x^{2} -2x-8=16[/tex]

[tex]x^2-2x-24=0[/tex]

[tex]x^{2} -6x+4x-24=0[/tex]

[tex]x(x-6)+4(x-6)=0[/tex]

[tex](x-6)(x+4)=0[/tex]

[tex]x=6[/tex]

[tex]x=-4[/tex]

Hence, the roots of the given quadratic equation are 6 and -4.

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Answer:

The factored form of the equation is (x + 4)(x – 6) = 0.

(option C)

Answer:

The circumference is 125.7cm

144 Inches or 12 Feet

Step-by-step explanation

7 feet converted to inches is 84 So 84+60=144

And if you convert 60 inches into feet it would be 5

Answer:

144 inches

Step-by-step explanation:

1 ft = 12 inches

7 ft = 12 x 7 inches

7ft = 84 inches

Ice path you are floating on = 84 inches

other ice path = 60 inches

all together = 84 + 60

=> 144 inches

Hope this helps!

Answer:

3x2+9x−5

Step-by-step explanation:

You just have to add the like terms

Answer:

3x² + 9x - 5

Step-by-step explanation:

Group like terms:

3x² + 6x - 10 + 3x + 5

3x² + 9x -5

hope this helps :)

Answer:

Step-by-step explanation:

Using the slope concept, it is found that the horizontal distance from the base of the skyscraper out to the ship is of 961.6 feet.

The slope is given by the vertical change divided by the horizontal change, and it's also the tangent of the angle of depression.

In this problem:

Hence:

[tex]\tan{48^\circ} = \frac{1068}{x}[/tex]

[tex]x = \frac{1068}{\tan{48^\circ}}[/tex]

x = 961.6

The horizontal distance from the base of the skyscraper out to the ship is of 961.6 feet.

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Answer:

Angle A = 45 degrees

Angle B = 64 degrees

Angle C = 60 degrees

Hope this helps!

The total score of Melissa and Tomas who are playing a game with complex numbers is 8-2i.

A complex number is the combination of real and imaginary number. It can be written as,

[tex]a+bi[/tex]

Here, (a) is a real number and (b) is an imaginary number.

Melissa and Tomas are playing a game with complex numbers.  Melissa has a score of 5 – 4i and Tomas has a score of 3 2i. The sum of their score is,

[tex]S=5 -4i +(3+2i)\\S=5+3-4i+2i\\S=8-2i[/tex]

Hence, the total score of Melissa and Tomas who are playing a game with complex numbers is 8-2i.

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Answer:

8-2i

Step-by-step explanation:

c

Answer:

(a) 10.3

(b) 11

Step-by-step explanation:

(a) Step 1: mean is the average of a set of numbers. Add them all together and then divide by how many numbers you were given

11+12+5+11+8+13+12 = 72

Step 2: There are 7 numbers so you divide 72 by 7

72/7 = 10.28

(a) The mean equals 10.3

(b) Step 1: Median is the middle number in a list of numbers. Line the numbers up in order and find the middle one.

5, 8, 11, 11, 12, 12, 13

(b) the median equal 11