What number am I ???

QUESTION 1a.

We want to add

[tex]( - 2 {x}^{2} - 4x + 13) + (12 {x}^{2} + 2x - 25)[/tex]

We group similar terms to get

[tex]- 2 {x}^{2} + 12 {x}^{2}- 4x + 2x - 25 + 13[/tex]

Simplify:

[tex]- 10{x}^{2} - 2x -12[/tex]

QUESTION 1b.

The given function is:

[tex](7x^2+4x-26)-(-7x^2-3x+15)[/tex]

Expand the parenthesis to obtain,

[tex]7x^2+4x-26 + 7x^2 + 3x - 15[/tex]

Group similar terms,

[tex]7x^2+7 {x}^{2} + 4x + 3x-26 - 15[/tex]

Simplify:

[tex]14{x}^{2} + 7x-41[/tex]

QUESTION 2

The given function is

[tex]f(n)=n^2-6n-16[/tex]

The zeros of this function is given by;

[tex]n^2-6n-16 = 0[/tex]

Split the middle term.

[tex]n^2-8n + 2n-16 = 0[/tex]

Factor;

[tex]n(n - 8) + 2(n - 8) = 0[/tex]

[tex](n - 8)(n + 2) = 0[/tex]

[tex]n - 8 = 0 \: or \: n + 2 = 0[/tex]

[tex]n = 8 \: or \: n = - 2[/tex]

Answer:

[tex]h=10\ yd[/tex]

Step-by-step explanation:

we know that

The volume of the triangular prism of the figure is equal to

[tex]V=Bh[/tex]

where

B is the area of the triangular base

h is the height of the triangular prism

Find the value of B

[tex]B=\frac{1}{2}(6)(3)=9\ yd^{2}[/tex]

we have that

[tex]V=90\ yd^{3}[/tex]

substitute the values and solve for h

[tex]90=9h[/tex]

[tex]h=90/9=10\ yd[/tex]

Answer:

B

Step-by-step explanation:

Answer:

n  = 30

Step-by-step explanation:

The triangles share the same angle measures, so they are similar triangles.  The side lengths of similar triangles are proportional to each other, so we can set up a proportion and solve for n...

16 is to 20 as 24 is to n

16/20 = 24/n       now solve for n by cross multiplying

16n = 480

     n = 30      (divide both sides by 16)

We are given that the original triangle and its projection are similar. This means that the corresponding angles of the two triangles are congruent, and the ratios of their side lengths are equal.

We are also given the lengths of two sides of the original triangle: 16 cm for the base and 20 cm for the hypotenuse. We are asked to find the missing length on the projection, which corresponds to the base of the original triangle.

To solve this problem, we can set up a proportion based on the similar triangles. Let x be the missing length on the projection:

(base of original triangle) / (base of projection) = (hypotenuse of original triangle) / (hypotenuse of projection)

Substituting the known values:

Cross-multiplying:

Therefore, the missing length on the projection is 19.2 cm. However, the answer choices are all rounded to one decimal place.

Rounding 19.2 cm to one decimal place gives us 19.0 cm. Therefore, none of the provided options are correct.

The question probable maybe:

A flashlight is projecting onto a wall, as shown below

The original triangle and its projection are similar. What is the missing length on the projection?

a. 12.6

b. 17.9

c. 35

d. 31

Answer: The answer is B because

The Circumference of a circle or a sphere is equal to 6.2832 times the Radius. The Circumference of a circle or a sphere is equal to 3.1416 times the diameter.

Option: C is the correct answer.

The equation of the blue graph i.e. function G(x) is:

               C.  [tex]G(x)=(x+3)^2+1[/tex]

We are given a parent function F(x) as:

                      [tex]F(x)=x^2[/tex]

Now after looking at the graph of the transformed function G(x) we see that the graph of G(x) is obtained by shifting the graph of F(x) 3 units to the left and  1 units upward.

Hence, the equation of the transformed function G(x) is given by:

                           [tex]G(x)=(x+3)^2+1[/tex]

Answer: No, No, Yes, Yes

Step-by-step explanation:

Answer: 1. No  2. No  3. Yes  4. Yes

Step-by-step explanation: I took the online homework and got 100%

and here is proof that I'm right.

Please mark me Brainliest  : D

The product of 35.263 multiplied by 0.29 is 10.22627 or approximately 10.2

In mathematics, the 'product' is the result you get from multiplying numbers together. The product of 35.263 and 0.29 is calculated by multiplying the two numbers together, resulting in 10.22627.

The product of 35.263 and 0.29 can be found by simply multiplying these two numbers together. In mathematics, the term 'product' refers to the result obtained by multiplying two or more numbers together. So, to find the product of 35.263 and 0.29, you just need to multiply these two numbers:

35.263 * 0.29 = 10.22627

Therefore, the product of 35.263 and 0.29 is 10.22627.

https://brainly.com/question/31670943

#SPJ2

Answer:

B

Step-by-step explanation:

all of the numbers times three equals the number across from it.

Hope this helps!

Answer:

[tex]\large\boxed{Common\ factors:\ 1,\ 2,\ 4,\ a,\ 2a,\ 4a}[/tex]

Step-by-step explanation:

[tex]16a=2\cdot2\cdot2\cdot2\cdot a\\Factors:\boxed1,\ \boxed2,\ \boxed4,\ 8,\ 16,\ \boxed{a},\ \boxed{2a},\ \boxed{4a},\ 8a,\ 16a\\\\20ab=2\cdot2\cdot5\cdot a\cdot b\\Factors:\boxed1,\ \boxed2,\ \boxed4,\ 5,\ 10,\ 20,\ \boxed{a},\ \boxed{2a},\ \boxed{4a},\ 5a,\ 10a,\ 20a,\\b,\ 2b,\ 4b,\ 5b,\ 10b,\ 20b,\ 2ab,\ 4ab,\ 5ab,\ 10ab,\ 20ab\\\\Common\ factors:\ 1,\ 2,\ 4,\ a,\ 2a,\ 4a[/tex]

Answer:

2, 4, and a  

Step-by-step explanation:

Factors of 16a:    2, 4,    8,     16,       a

Factors of 20ab: 2, 4, 5,   10,     20, a, b

The common factors of 16a and 20ab are 2, 4, and a.

Answer:

8 units

Step-by-step explanation:

The x coordinates don't change so you just subtract 2 from 10 to get the distance.

Answer:

8

Step-by-step explanation:

To calculate the distance d, using the distance formula

d = √ (x₂ - x₁ )² + (y₂ - y₁ )²

with (x₁, y₁ ) = A(- 9, 2) and (x₂, y₂ ) = B(- 9, 10)

d = [tex]\sqrt{(-9+9)^2+(10-2)^2}[/tex]

   = [tex]\sqrt{0^2+8^2}[/tex] = [tex]\sqrt{64}[/tex] = 8

Answer:

Step-by-step explanation:

(x/12) = (15/9)

x = 12 (15/9)

x = 20

Answer:

20 feet

Step-by-step explanation:

a = 9 ft., b = 15 ft., c = 12 ft.

c/a = ?,? times b = x

12/9 = 1.3, 1.3(15)= 20

Answer:

Price of the drink = $1.25

Step-by-step explanation:

4.5% * ( $4.5 + $6.25 + drink) = $0.54

4.5/100 * ( $4.5 + $6.25 + drink) = $0.54

0.045 * ( $4.5 + $6.25 + drink) = $0.54

0.045/0.045 * ( $4.5 + $6.25 + drink) = $0.54/0.045

( $4.5 + $6.25 + drink) = $12

10.75 + drink = $12

drink = $12 - $10.75

drink = $1.25

The price of the drink is $1.25

The given parameters are:

Tax amount = $0.54

Salad = $4.50

Sandwich = $6.25

Let the price of the drink be x.

Given that the sales tax is 4.5%, we have:

4.5% * ( $4.5 + $6.25 + x) = $0.54

Divide both sides by 4.5%

( $4.5 + $6.25 + x) = $12

Evaluate the sum

$10.75 + x= $12

Subtract $10.75 from both sides

x = $1.25

Hence, the price of the drink is $1.25

Read more about sales tax at:

https://brainly.com/question/25783927

Answer:

y = -5

Step-by-step explanation:

To solve this, we simply plug in 4 into x and then solve for y. We have:

[tex]-3x+9y=-57\\[/tex]

Now we put 4 into x and do some algebra and solve for the value of y:

[tex]-3x+9y=-57\\-3(4)+9y=-57\\-12+9y=-57\\9y=-57+12\\9y=-45\\y=\frac{-45}{9}\\y=-5[/tex]

So y = -5

Answer:

the correct answer is -9

Step-by-step explanation:

Answer:

[tex]21\ in[/tex] by [tex]63\ in[/tex]

Step-by-step explanation:

we know that

To find the dimensions of the enlarged poster, multiply the original dimensions of the poster by the scale factor

so

[tex]18(\frac{7}{2})=63\ in[/tex]

[tex]6(\frac{7}{2})=21\ in[/tex]

therefore

The dimensions of the enlarged poster are  [tex]21\ in[/tex] by [tex]63\ in[/tex]

Step-by-step explanation:

Surface Area Formula: SA=2lw+2lh+2hw

SA is surface area. l is length, w is width, h is height. Make sure to follow PEMDAS and keep multiplication together before adding.

Now substitute values

2(12 3/4*8 1/2)+ 2(12 3/4 * 5 1/2)+ 2(5 1/2*8 1/2)

SA=450.5 inches squared

To find the total surface area of three identical boxes with given dimensions, calculate the surface area of one box using the formula for a rectangular prism and then multiply by three. The total surface area of three boxes is 1351.5 square inches.

Calculating the Total Surface Area of Three Boxes

The question involves finding the total surface area of three identical boxes, each with the dimensions 8 1/2 inches wide, 12 3/4 inches long, and 5 1/2 inches tall. To calculate the surface area of one box, we use the formula for surface area of a rectangular prism:

SA = 2lw + 2lh + 2wh

where SA is the surface area, l is the length, w is the width, and h is the height. Convert fractions to decimals for easy calculation:

Width (w) = 8.5 inches

Length (l) = 12.75 inches

Height (h) = 5.5 inches

Applying the dimensions:

SA = 2(12.75)(8.5) + 2(12.75)(5.5) + 2(8.5)(5.5)

Calculate and add up the areas for each pair of sides:

SA = 2(108.375) + 2(70.125) + 2(46.75)

SA = 216.75 + 140.25 + 93.5

Sum to find the total surface area for one box:

SA = 450.5 square inches

To find the total surface area for three boxes, multiply the surface area of one box by 3:

Total SA = 450.5 * 3

Total SA = 1351.5 square inches

The total surface area of three such boxes is 1351.5 square inches.

Answer:

828

Step-by-step explanation:

The ratio is how much something has, comparative to another thing.

So, for every 10 apples, there are 4 oranges (first blank). Therefore, if there is half, five, of the apples, there are two (second blank), half of four, oranges. And, if the number of oranges tripled (12), there will be triple apples, which is 30 (third blank).

Answer: 10:4, 5:8, 1:12

Step-by-step explanation:

So for apples it goes my 10 then to 5 right? So the next one must be 1

For orange the first number they gave u is 4 and the 3rd number is 12. If u look in the multiplication table it goes like 4,8,12, ect.

Answer:

p=-6

Step-by-step explanation:

-84/6=p-8

-14=p-8

p=-6

Final answer:

After substituting the x and y values of the point (3,-1) into the circle's equation, it is determined that (3,-1) does not lie on the circle since the equation does not hold true.

Explanation:

To determine if the point (3,-1) lies on the circle given by the equation [tex](x+1)^2 + (y-1)^2[/tex]=16, we must substitute the x and y values of the point into the equation and see if the equation holds true.

Let's plug in x = 3 and y = -1:

[tex](3+1)^2 + (-1-1)^2[/tex]= 16

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

16 + 4 = 20

Since 16 + 4 does not equal 16, the point (3, -1) does not lie on the circle

It’s a good idea to get into the habit of using parentheses

when substituting numbers in for variables.

If you have parentheses in your original problem, change them to brackets as you substitute (to avoid confusion).

Now plug in the values for b and c into the problem.

So we have [(-5) + (-3)].

Simplifying inside the brackets, we get [(-8)].

So -8 is the answer.

Answer:

jkdnfj dsbnjhfvbdsybvkdsbfvbhjvfblvsdjvdshjkvsdbhjkvndhjs

Step-by-step explanation:

7 because subtract 25 from 250 the divide 225 by 30 to get 7.5 so he can only use 7 square yards