this one is pretty easy, i just forgot how to do it.

Answer:

x=3

Step-by-step explanation:

When you substitute x = 3 to both equations, you get y = -4 for both so that is a solution

Answer:

A. [tex]3<\sqrt{15} <4[/tex]

Step-by-step explanation:

First we need to know what [tex]\sqrt{15}[/tex] equals.

It equals around 3.87, which is more than 3 and less than 4.

Answer: It might be "A" i dont know.

9514 1404 393

Answer:

  (a)  (2, 6)

Step-by-step explanation:

The function is constant where its graph is horizontal. That portion of the graph lies between x=2 and x=6. In interval notation, the function is constant in the interval (2, 6).

Answer:

3^(2x+1)

Step-by-step explanation: srry if am wrong and am probally wrong.

Answer:

.000068 is greater than .0000678

Answer:

six 6 is the median number i think

Step-by-step explanation:

Answer:

20 yd²

Step-by-step explanation:

lets do the big one

4 x (6-2) = 4 x 4 = 16 yd²

2 x (4-2) = 2x2 = 4 yd²

16 yd² + 4 yd² = 20 yd²

Another way

Find the area of the figure if it was a rectangle

4 x 6 = 24 yd²

then subtract 2 x 2 = 24 yd² - 4 yd² = 20 yd²

Answer:

20

Step-by-step explanation:

Solve the area of the squares separately, then add. the small square has a length and width of 2, and 2x2 is 4, so that area is 4. the bigger one has a length and width of 4, and 4x4 is 16, and then we add the two values together, and 16+4 is 20, so the total area is 20.

Answer:

  30√3 m ≈ 52 m

Step-by-step explanation:

The side ratios in a 30°-60°-90° triangle are 1 : √3 : 2. The long leg of the triangle is √3 times 30 m, or about 51.96 m.

The distance between the tree and the tower is about 30√3 m ≈ 52 m.

__

If you haven't memorized the ratios of this special triangle, you can use the relation ...

  Tan = Opposite/Adjacent

  tan(30°) = 30/d

  d = 30/tan(30°) = 30√3 = 51.96 . . . . same as above

Im not for sure.. but I think it would be something like 3,9

Answer:

We rearrange the first equation into y = 8x - 42 and we substitute it in to get

-4x - 6 = 8x - 42 so 12x = 36 so

x = 3 and y = -18

hope this helps and brainliest please

Answer:

6mile + hour + 3.5 hours + miles

Step-by-step explanation:

add the expressions

Step-by-step explanation:

Cancel 15/24 by 3 you'll get your solution.

hope it helps

I think its 9.7980........

Answer:

Sometimes

Step-by-step explanation:

Example 1:

Take two numbers as [tex]7,8[/tex]

LCM of [tex]7,8=7(8)=56[/tex]

In this case, the lcm of two numbers is equal to the product of the two numbers.

Example 2:

Take two numbers as [tex]6,3[/tex]

[tex]6=3(2)[/tex]

So,

LCM of [tex]6,3=3(2)=6[/tex]

In this case, the lcm of two numbers is not equal to the product of the two numbers.

Therefore,

Sometimes, the lcm of two numbers is equal to the product of the two numbers.

Answer:

44%

Step-by-step explanation:

55 out of 125 just means we divide 55 by 125.

[tex]\frac{55}{125} = .44[/tex]

[tex].44 = 44%[/tex]%

.44 can be converted to 44% by moving the decimals place.

Answer:

Quadratic Trinomial

Step-by-step explanation:

Hello there!

quadratic trinomial equations look like -  [tex]x^2+bx+c[/tex]

given formula [tex]n^2-7n+21[/tex] which is in the form of a quadratic trinomial

a quadratic trinomial consist of a constant, a  variable to the power of 2,  and a variable

Reasons why its not the other answer choices:

Linear equations do not have variables with powers therefore we can eliminate answer choice linear trinomial and linear polynomial

[tex]n^2-7n+21[/tex] is not a quadratic polynomial because a quadratic polynomial consists of a = 0

This is what a quadratic polynomial looks like

[tex]ax^2+bx+c=0[/tex]

so we can conclude that [tex]x^2+bx+c[/tex] is an example of a quadratic trinomial

Answer:

1/32

Step-by-step explanation:

Answer:49.5

Step-by-step explanation:

Since all sides of a square are equal, multiply 6 x 6. Then multiply 6 times 4 1/2 then divided by 2. Now add everything together. Hopefully this helps :)

Answer:

age is 35

Step-by-step explanation:

5a - 20 + (-3a) = 50

2a - 20 = 50

2a = 70

a = 35

Answer:

a) 5/8

Step-by-step explanation:

f(-3) when f(x)=5(2)^x just replace the x with -3

f(x)=5(2)^x = 5 (2)^-3 we find the 3rd power of 2 first which means multiply 2 with itself 3 times

2×2×2 = 8 but here, it asks us for negative third power of 2 so we turn the 8 upside down :

if 2^3 = 8 then 2^-3 = 1/8 and now we multiply it with 5

5 × 1/8 = 5/8

Answer:

Ye cs they're both cong.

Step-by-step explanation:

Answer:

Which figures

Step-by-step explanation:

Answer:

1/9

Step-by-step explanation:

prime #'s between 1 and 45:

2,3,5,7,11,13,17,19,23,27,29,31,37,41,43

P(prime,prime) = 15/45 × 15/45 or 1/3 × 1/3

Answer:

Step-by-step explanation:

Answer:

Students review how to determine the surface area and volume of a rectangular prism, that all dimensions are equal in cubes so the volume of cubes are the length of any side raised to the third power, or cubed. This prepares them for two associated activities. First, students find the volumes and surface areas of rectangular boxes such as cereal boxes and then figure out how to convert their boxes into a new, cubical boxes having the same volume as the original. As they construct the new, cube-shaped boxes from the original box material, students discover that the cubical box has less surface area than the original, and thus, a cube is a more efficient way to package items. Students consider why consumer goods are generally not packaged in cube-shaped boxes, even though this would require fewer materials and ultimately, less waste. Then, to display their findings, each student designs and constructs a mobile that contains a duplicate of his or her original box, the new cube-shaped box of the same volume, the scraps that are left over from the original box, and pertinent calculations of the volumes and surface areas involved.

Step-by-step explanation:

Answer:

3.7

Step-by-step explanation: