Solve for x in the equation x2+4x-4-8.

Answer:

3xy2 + 3xy

Step-by-step explanation:

0,0

Answer:

commutative property:

A + B = B + A

So we have

3 + (5 + 7)  = (5 + 7) + 3

Now distributive means that:

A + (B + C) = (A + B) + C

So  (5 + 7) + 3 = 5 + (7 + 3)

now the equation is easier to solve, because 7 + 3 = 10

5 + (7 + 3) = 5 + 10 = 15

Answer:

Use the commutative property of operations to reverse the numbers in the expression.

✔ 3 + (7 + 5)

Use the associative property of operations to change the grouping after reversing the numbers in the expression.

✔ (3 + 7) + 5

Evaluate the expression.

✔ 15

Step-by-step explanation:

Answer:

Diego's mistake is that he multiplied the exponents, instead of adding. The answer should be [tex]2^{3+2} = 2^{5}[/tex]

Step-by-step explanation:

Suppose we have a base a, and two exponents, b and c, we have that:

[tex]a^{b} \times a^{c} = a^{b+c}[/tex]

In this problem:

[tex]a = 2, b = 3, c = 2[/tex]

Diego's mistake is that he multiplied the exponents, instead of adding. The answer should be [tex]2^{3+2} = 2^{5}[/tex]

Answer:

Step-by-step explanation:

Given three points J, C and T on a line, if J is between C and T then;

CJ + JT = CT.

Given CJ=8x+5, CT=55, and JT=4x+2, substituting this parameters in the equation above will give;

[tex](8x+5)+(4x+2)= 55\\8x+4x+5+2 = 55\\12x+7 = 55\\12x = 55-7\\12x = 48\\ x = \frac{48}{12} \\x = 4[/tex]

SInce JT = 4x+2

[tex]JT = 4(4)+2\\JT = 16+2\\JT = 18[/tex]

Answer:

4/3

Step-by-step explanation:

encontrar el mínimo común denominadorienes para que sea mas facil

5/3+17/51-14/21 es 5/3 + 1/3 -2/3 cuando todos son igual de los denominados.

Ahora escribi todos los 3 numeros que iguale lo mismo denominador

5+1-2/3

Ahora solo hace el mas y menos y esta listo

4/3 es lo que pasa cuando haces las operaciones.

Answer:

d) yes, becausd the maximum height of tharch is 9.6 feet

Step-by-step explanation:

This is because the arch has met the minimum height

Add brainliest please

Answer:

A statement that is true about the angle measures of the pieces is that the angle measure of each piece is 72°. This is because there are 360° in a full circle, and if each piece is equal, that means that each piece is a fifth of that. Therefore, the angle measure is 360/5= 72°

Question:

Vincent bought a 25-pound bag of rice. He cooked 6.25 pounds of the rice. He stored the rest of the rice in [tex]3\frac{3}{4}[/tex] - pound portions. What is the maximum number of [tex]3\frac{3}{4}[/tex] - pound portions he stored?

Answer:

The maximum number of portion he stored is 5 portion

Step-by-step explanation:

Given

Size of Rice = 25 lb

Size of Cooked Rice = 6.25 lb

Portions saved = [tex]3\frac{3}{4}[/tex] lb

Required

Number of portion saved;

First, the size of rice after cooking needs to be calculated;

If 6.25lb of rice was cooked from a total of 25lb;

Then, the size of rice left is

[tex]Size = 25lb - 6.25lb[/tex]

[tex]Size = 18.75lb[/tex]

Now that we have the amount left after cooking; we can simply calculate the maximum number of portions;

This is calculated by dividing size of rice left by portions of saved rice;

i.e.

Maximum number of portion = Size of rice left / Portions of saved rice

Maximum number of portion = [tex]\frac{18.75lb}{3\frac{3}{4}lb}[/tex]

Convert  [tex]3\frac{3}{4}[/tex] to mixed fraction

Maximum number of portion = [tex]\frac{18.75lb}{\frac{15}{4}lb}[/tex]

Maximum number of portion = [tex]\frac{18.75}{\frac{15}{4}}[/tex]

Rewrite expression

Maximum number of portion = [tex]18.75 / \frac{15}{4}[/tex]

Change divide (/) sign to multiplication (*)

Maximum number of portion = [tex]18.75 * \frac{4}{15}[/tex]

Maximum number of portion = [tex]\frac{75}{15}[/tex]

Maximum number of portion = 5

Hence, the maximum number of portion he stored is 5 portions

Answer:

If you divide any number by zero, the answer will be zero.

Step-by-step explanation:

You can't divide by zero. If you divide an number by zero on a calculator, it will come out as 'undefined'.

All other statements are true.

An integer that is positive is greater than zero, and a integer that is negative is less than zero. 0 is equal to 0, so it is neither positive or negative.

The sum of a number and zero will be that number. You are technically adding nothing.

[tex]4+0=4[/tex]

The product of any number and zero is zero. This is the "Multiplication Property of Zero".

[tex]4*0=0[/tex]

"If you divide any number by zero, the answer will be zero." should be the correct answer.

"If you divide any number by zero, the answer will be zero." should be the correct answer.

Addition property of zero:

The addition property of zero says that a number does not change when adding or subtracting zero from that number.

Multiplication property of zero:

The multiplication property of zero says that zero times any number is equal to zero.

Explanation for correct option:

If you divide any number by zero, the answer will be zero.

You can't divide by zero. If you divide an number by zero on a calculator, it will come out as 'undefined'.

All other statements are true.

Explanations for other options:

An integer that is positive is greater than zero, and a integer that is negative is less than zero. 0 is equal to 0, so it is neither positive or negative.

The sum of a number and zero will be the same number. You are technically adding nothing.

The product of any number and zero is zero. This is the "Multiplication Property of Zero".

"If you divide any number by zero, the answer will be zero." should be the correct answer.

Learn more about zero here

https://brainly.com/question/903340

#SPJ2

Answer:

x = 10

Step-by-step explanation:

45x - 15x = 300

Combine like terms

30x = 300

Divide each side by 30

30x/30 = 300/30

x = 10

Answer:

2. 9:45

3. 2:30

Step-by-step explanation:

Answer:

9

Step-by-step explanation:

Since the value is negative, that means that missing integer has to be 1 greater than 8 to make -1. 1 more than 8 is 9. Hope this helps! If you are still confused, please comment!

Answer:

length = 62.41 inches

Step-by-step explanation:

Using pythagoras theorem -

Let

a = hypotenuse

b = height

c = length

a^2 = b^2 +c^2

75^2 = 41.6^2 + c^2

Therefore,

75^2 - 41.6^2 = c^2

5625 - 1730.56 = c^2

389.44 = c^2

square root (389.44) = c

62.40544848 = c

Answer:

62 inches.

Step-by-step explanation:

and finally, take the square root of the number we are left with after subtracting [tex]B^{2}[/tex] , or 1730.56, from 5625, or [tex]C^{2}[/tex]

5625 - 1730.56 =3894.44

[tex]\sqrt{3894.44}[/tex] = 62.405

Answer:

I would say 1/2 but this question is really confusing.

Step-by-step explanation:

Answer:

k = 2.5

Step-by-step explanation:

k = 2 / 5 * 6

k = 12 / 5

Answer:

Huh, the answer option doesn't exist. The answer is 7.5 You can double check my answer by multiplying 7.5*4 because 25% is 1/4th of 100%.

Step-by-step explanation:

Use cross multiplication. I've heard it being called butterfly multiplication. I'll try to represent it as best as I can.

x           25

----   =  --------

30         100

You multiply 30 by 25 and x by 100

x*100=30*25

Then solve for x

x*100=750

x=750/100

x=7.5

Hope this helps :)

Answer:

Sphere

Step-by-step explanation:

its a sphere with a radius of 5

The solid three dimensional image that is produced from the rotation of the semicircle is called a sphere.

This is used to define the movement of an object in a three dimensional plane around a fixed point.

This transformation os known to occur in a given point of the figure. The roataion is done at a certain degree.

Read more on rotation here: https://brainly.com/question/15624908 #SPJ2

Answer:

Step-by-step explanation:

-5x+4y=16

-5x4y=16

-5*4*2

25% chance

Head-Head

Head-Tail

Tail-Head

Tail-Tail

Answer:

Talia is not correct. The lateral area has three faces, so the expression should be 3 (one-half (8) (6.9)).

Step-by-step explanation:

A triangular prism has four triangles, three at the sides and one at the base.

A congruent shape has the same feature (side dimensions and angles), therefore all three sides of the prism, and the basal triangle have the same area (since they are congruent).

The area of the base will be One-half (8) (6.9), therefore each of the three sides too will have that same area.

Lateral area means only the areas of the sides excluding the base, therefore, the lateral area will be 3 (one-half (8) (6.9))

Answer:

Its D

Step-by-step explanation:

Answer:

work is shown and pictured

Answer:

(x + 3)(5x + 2)

Step-by-step explanation:

[tex]5 {x}^{2} + 17x + 6 \\ = 5 {x}^{2} + 15x + 2x + 6 \\ = 5x(x + 3) + 2(x + 3) \\ = \huge \red{ \boxed{ (x + 3)(5x + 2) }} \\ [/tex]

Answer:

112 square inches

Step-by-step explanation:

The surface of the box is formed by 6 rectangles. Two of them have dimensions 7 by 3 inches, two have dimensions 7 by 3 1/2 inches, and two have dimensions 3 by 3 1/2 inches. Finding the area of all of these and adding them together, you get:

[tex]2(7 \cdot 3) + 2(7\cdot 3\frac{1}{2}) + 2(3\cdot 3\frac{1}{2})=[/tex]

[tex]2(21)+2(24\frac{1}{2})+2(10\frac{1}{2})=[/tex]

[tex]42+49+21=112[/tex]

Hope this helps!

Answer:112inch^2

Step-by-step explanation:

Total surface area =2(lw+hw+lh)

TSA=2(7*3+3.5*3+7*3.5)

TSA=112inch^2

Answer:

4

Step-by-step explanation:

The slope of the green line is the negative reciprocal of that of the red line:

-1 / (-1/4), or just 4

Answer:

+4

Step-by-step explanation:

The slopes of perpendicular lines are negative reciprocals of one another.

Here, with one slope being -1/4, the slope of a perpendicular line would be +4.

Answer:

Step-by-step explanation:

Assuming KH is a straight line with K and H being the beginning and the end of the line. If J is between H and K, it means that J is a point on line HK. Therefore, we can say that

HJ + JK= KH

If HJ = 4x + 9, JK = 3x + 3 and KH = 33, it means that

4x + 9 + 3x + 3 = 33

4x + 3x = 33 - (9 + 3)

7x = 21

Dividing both sides of the equation by 7, it becomes

x = 21/7 = 3

Therefore, HJ = 4 × 3 + 9 = 21

Answer:

31 liters

Step-by-step explanation:

(9^2)4(3.14) = 1017.36

1017.36(.85) = 864.756

864.756/28.3 = 30.56 = 31 liters

Answer:

76/15

Step-by-step explanation:

Drug A=2/5

Drug B=5/3

Drug C=9/3

Add the drug combinations together

Drug A + B + C=2/5 + 5/3 + 9/3

The L.C.M of the denominators is 15

=6+25+45/15

=76/15

Or

=5 1/15

Allen needs to prepare 76/15 compound for the patient

Answer:

Your answer is C.

Step-by-step explanation:

take 2/5 x 240 = 96 which is two fifths of 240

Hope this helps. :)

Have a good day!

Answer:

2 millimeters

Step-by-step explanation:

Ethan used the scale 1 millimeter : 5 meters.

This means that 1 millimeter in the drawing represents 5 meters in actual life.

The actual  length of the garage is 10 meters. Therefore:

5 meters = 1 millimeter

=> 10 meters = (10 * 1) / 5 = 2 millimeters

The garage is 2 millimeters long in the drawing.