If x * (x + 2) = 49, find x

Answer:

85

Step-by-step explanation:

Answer:

4 terms

Step-by-step explanation:

First rearrange the expression from largest to smallest:

-9x^4-3x^2+5x+2

Now count how many terms their are,

-9x^4=1 term

-3x^2=2 terms

5x=3 terms

2=4 terms

Therefore, there are 4 terms in the expression

Answer:

x = 30    Quadrilateral

x = 20    Triangle

Step-by-step explanation:

Quadrilateral

A quadrilateral has a sum of 360 degrees for its interior angles.

So

x + 2x + 4x + 5x = 360       Find the sum of the 4 angles

12x = 360                           Divide by 12

12x = 360/12                      

x = 30                                 Answer

Triangle

A triangle has an interior angle sum of 180 degrees.

2x + 5x  + (x + 20) = 180         Remove the brackets

2x + 5x  + x + 20 = 180           Add the angles

8x + 20 = 180                           /subtract 20 from both sides

8x = 180 - 20

8x = 160                                 Divide by 8

x = 160/8

x = 20    

Answer:

B and D

Step-by-step explanation:

A can't be correct because the length of a segment is always positive. B is correct because we have to take the absolute value of the distance between endpoints to find the length of the segment. C is not correct because AC is obviously longer than BC so how would AB + AC = BC? D is correct because it models the Parts Whole Postulate.

The original price is 100%, a 15% discount means the shoes are now ( 100-15 = 85) 85% of the original price,.

Multiply the original price by 85%

60 x 0.85 = 51

The price is $51

Answer:

$51

Step-by-step explanation:

15% discount means that the new price is 85% of the original one. Therefore we just need to multiply 60 by 0.85 to find 85% of the number.

60x0.85=$51

The new price would be $51.

Similarly you could also have divided 60 by 100 to find one percent of it (60/100=0.6) and then multiplied it by 85 to find 85%. (0.6x85=51)

Hope this helped!

Answer:

kindly see attached picture

hope it helped you:)

Answer:

-2

Step-by-step explanation:

The opposite of 2 is - 2 because it is the distance way away from 0, just in the opposite side.

Hope this helped!

Using rounding concepts, it is found that 325.623 rounded to the nearest tenth is 325.6.

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A similar problem is given at https://brainly.com/question/13241511

Answer: a) -27, b) 35, c) 14

Step-by-step explanation:

a) When a positive number is multiplied by a negative number, your answer is negative, and since we know that 9 × 3 = 27, and that this figure has to be negative (since 9 is negative), the answer is -27.

b) Multiplying two negative numbers gives a positive number, and since 7 × 5 = 35, the answer is positive 35 (as both 7 and 5 in the original question are negative).

c) Follows just like b.

Answer:

2:45

Step-by-step explanation:

Answer:

48

Step-by-step explanation:

-12 x -4 = 48 (When we multiply two negetive numbers, the product becomes positive )

Answer:

48

Step-by-step explanation:

i did the quiz

Answer:

2x-2= -21

Step-by-step explanation:

Answer:

-9.5

Step-by-step explanation:

We can create an equation to represent this, where [tex]n[/tex] is the missing value.

[tex]2n - 2 = -21[/tex]

Now we can solve for [tex]n[/tex] by isolating it on one side of the equation.

Add 2 to both sides:

[tex]2n - 2 + 2 = -21+2\\\\2n = -19[/tex]

Divide both sides by 2:

[tex]2n\div2 = -19\div2\\\\n = -9.5[/tex]

Hope this helped!

Answer:

[tex]LO = OT = 8cm[/tex]

Step-by-step explanation:

Given

LT = 16cm

Required

Determine LO and OT

First, we have:

[tex]LO + OT = LT[/tex]

From the question, we understand that O is the middle of LT

This implies that LO = OT

Substitute OT for LO in the above formula

[tex]OT + OT = LT[/tex]

[tex]2OT = LT[/tex]

Divide both sides by 2

[tex]OT = \frac{1}{2}LT[/tex]

Substitute 16cm for LT

[tex]OT = \frac{1}{2} * 16cm[/tex]

[tex]OT = 8cm[/tex]

Recall that LO = OT

So;

[tex]LO = OT = 8cm[/tex]

Answer:

yes

Step-by-step explanation:

ny shape that has a line of symmetry is symmetrical shape.means the shape can be folded into two equal halves.

Answer:

-40

Step-by-step explanation:

2 times negative 2 is 4 plus 4 is 8 times negative 5 is -40

Answer:

[tex]x=3/2=1.5[/tex]

Step-by-step explanation:

So we have the equation:

[tex]2x-2=4x-5[/tex]

And we want to solve for x. To do this, we need to first isolate the x-variable. So, start by adding 2 to both sides:

[tex](2x-2)+2=(4x-5)+2[/tex]

The 2s on the left cancel:

[tex]2x=4x-3[/tex]

Now, subtract 4x from both sides:

[tex](2x)-4x=(4x-3)-4x[/tex]

The 4xson the right cancel:

[tex]-2x=-3[/tex]

Now, divide both sides by -2.

[tex]\frac{(-2x)}{-2}=\frac{-3}{-2}[/tex]

The negatives cancel. The 2s on the left cancel. Therefore:

[tex]x=3/2=1.5[/tex]

Answer:

just ask your question and post it and somebody will help with the answer

Step-by-step explanation:

Step-by-step explanation:

From graph of g(x), it is observed that y - intercept is 6.

Therefore,

[tex]6 = 2(3)^{0} + k[/tex]

[tex]k \: = 4[/tex]

The value of k is equal to 4

Function, in mathematics, is an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable).

Given here the functions  f(x)=2(3)ˣ and g(x)=f(x)+k when x=0 we get

f(0)=2  and from the graph we can clearly observe that g(0)=6

Thus putiing in the values we get k=4

Hence, The value of k is equal to 4

Learn more about functions here:

https://brainly.com/question/28303908

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Answer: Three gallons will be enough to make 128 servings.

Step-by-step explanation: In Three gallons there are 64 cups. if 5 cups makes 10 servings, that is 1/2 cup per serving. So 64 cups will make 128 servings.

Answer:

s = 5.48 in

Step-by-step explanation:

Area of square = s²

30 in² = s²

s = √30

s = 5.48 in

Answer:

Approximately 5.48 inches.

Step-by-step explanation:

Area of a square formula: Area = length^2

Area here = 30 in^2

30 = length^2

Take square root of both sides to get rid of the square.

[tex]\sqrt{30\\}[/tex] = length

length = 5.47722558

The approximate side length of the frame is about 4.58 inches.

Answer:

150 miles

Step-by-step explanation:

15÷100×1000=150

Step-by-step explanation:

2(xy)^3

= 2(0.6 * 5)^3

= 2(3)^3

= 2 * 27

= 54

Answer:

54

Step-by-step explanation:

since x= 0.6 and y=5 you replace them in 2(xy)^3

then it would be 2((0.6)(5))^3

first multiply the numbers inside 0.6 times 5 =3

second multiply 3 three times =27

lastly multiply 27 times 2 to get finally 54

hope this helped :)

Answer:

X÷5y

Step-by-step explanation:

5 x y is 5y and then we divide

The expression for the given phrase is 5y/x.

Given that, x divided by the product of 5 and y.

An expression is a combination of terms that are combined by using mathematical operations such as subtraction, addition, multiplication, and division.

Here,

The product of 5 and y =5×y

= 5y

x divided by the product of 5 and y

= 5y/x

Therefore, the expression for the given phrase is 5y/x.

To learn more about an expression visit;

https://brainly.com/question/28170201.

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Answer: -5x+3x²+5

Step-by-step explanation:

 (-2x+4x²+5)-(x²+3x)

=-2x+4x²+5-x²-3x

=-2x-3x+4x²-x²+5

=-5x+3x²+5

=3x²-5x+5 (if you are required to write in standard form)

Answer:

The answer to this is 3x+8

Answer:

x + 4

Step-by-step explanation:

Factor the polynomial.

6 (x+4)^2

Answer:

m=[tex]\frac{23}{3}[/tex] simplest form if you need it as a decimal its m=7.6

Step-by-step explanation:

Answer:

m = 1.2

Step-by-step explanation:

12m = 14.4

Divide each side by 12

12m/12 = 14.4/12

m = 1.2

m = 1.2  is the answer

because..

12m = 14.4

Divide each side by 12

12m/12 = 14.4/12

m = 1.2

hope this helped ヾ(•ω•`)oヾ(•ω•`)o

Answer:

Step-by-step explanation:

the length of EG is 6 so G is 6 units away from E. If E is at 3, then G is at 3+6 = 9

X is 12 units away from E so X is at 3 + 12 = 15

This assumes you are not using negative numbers.

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Number line are used to represent numbers on a line at regular intervals. The possible coordinates of G is either 10 or -14.

Given that:

[tex]G = 2[/tex]

[tex]EG = 12[/tex]

The equation that calculates EG is:

[tex]EG = |E - G|[/tex]

So, we have:

[tex]12 = |2 - G|[/tex]

Remove absolute brackets

[tex]2 - G = \± 12[/tex]

Add 2 to both sides

[tex]-G =2 \± 12[/tex]

Rewrite as:

[tex]G =-2 \± 12[/tex]

Split

[tex]G =- 2 - 12[/tex] or [tex]G = -2 + 12[/tex]

[tex]G = -14[/tex] or [tex]G = 10[/tex]

The possible coordinates of G are: 10 or -14.

Read more about number line at:

https://brainly.com/question/3677894

Answer:

c = 7

Step-by-step explanation:

Solve for 'c'

-7c - 5 = -9c + 9

-5 -9 = -9c + 7c

-14 = -2c

c = 7

Therefore 'c' equals 7

Answer:

c=7

Step-by-step explanation:

-7c-5=-9c+9

Add 9c to each side

-7c+9c-5=-9c+9c+9

2c -5=9

Add 5 to each side

2c-5+5 = 9+5

2c = 14

Divide each side by 2

2c/2 = 14/2

c=7

Answer:

Trying to find 85% of 21 is the same thing as multiplying 0.85 by 21.

0.85 * 21 = 17.85.

Hope this helps!

Answer:

The answer is 17.85!

Step-by-step explanation:

Hint: if you don't remember how to convert percentages into decimals, just remove the percent sign and shift the decimal point two places to the left.