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3 years ago

PLEASE HELP ASAP!!! Will give brainliest!

Mathematics

1 answer:

elena-s [515]3 years ago

7 0

10^6 = 1,000,000

10^2 = 100

1,000,000 / 100 = 10,000

so 8.76x10^6 is 10,000 times greater than

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10 hours to 6 hours percent of change

Novay_Z [31]

60%

I pretty sure this is right

4 0

3 years ago

Read 2 more answers

0.6x + 3 = 0.1x - 7 what value of x makes the question true

svetlana [45]

Answer:x=-20

Step-by-step explanation:

7 0

3 years ago

A triangular pyramid has a base shaped like an equilateral triangle. The legs of the equilateral triangle are all 20 inches long

Pie

Answer:

Surface area of pyramid with base equilateral triangle is $390+100\sqrt{3}$ square inches

Step-by-step explanation:

Recall the following result:

The total surface area(S) of a regular pyramid is given by,

$S = \frac{1}{2}pl+B$ ...... (1)

Here, p represents the perimeter of the base , $l$ the slant height and B the base area of the pyramid.

From the given information:

Side of equilateral triangle = 20 inches

Slant height of the pyramid( $l$ ) = 13 inches.

First find the perimeter and Area of the base pyramid.

Perimeter of equilateral triangle(p) = $3 \times (side)$

= $3 \times 20 = 60 inches$

Area of equilateral triangle(B) = $\frac{\sqrt{3} }{4} \times (side)^{2}$

= $\frac{\sqrt{3} }{4} \times (20)^2 = 100\sqrt{3}$ square inches.

Substitute the above values in equation (1) as shown below:

$S=\frac{1}{2} \times 60 \times 13+100\sqrt{3}$

$S= 390+100\sqrt{3}$ square inches

Hence, the surface area of pyramid with base equilateral triangle is $390+100\sqrt{3}$ square inches.

6 0

3 years ago

The CEO of NJAD, a Real Estate Investment Fund, decided to design a new development inPolycity, New Jersey. She wants to build 3

shutvik [7]

The perimeter (P) is the sum of all sides:

$\begin{gathered} (2x^2-6x+25)+(5x^3+6x^2-3x+4)+(x^3-2x^2+8x+9)+(3x^4+2x^3+8x+7) \\ 2x^2-6x+25+5x^3+6x^2-3x+4+x^3-2x^2+8x+9+3x^4+2x^3+8x+7 \\ 3x^4+5x^3+x^3+2x^3+2x^2+6x^2-2x^2-6x-3x+8x+8x+25+4+9+7 \\ 3x^4+8x^3+6x^2+7x+45 \end{gathered}$

5 0

1 year ago

-5x+ 10 = =5y<br> Slope-Intercept Form

I am Lyosha [343]

$\Huge\boxed{\boxed{y=-x+2}}$

$\large\textsf{Explanation:}$

$-5x+10=5y$

Use the symmetric property to flip the sides of the equation.

$5y=-5x+10$

Divide everything by 5.

$\Large\boxed{y=-x+2}$

8 0

4 years ago