How to solve scientific notation

Answers

Answer 1

Answer: To convert to scientific notation, start by moving the decimal place in the number until you have a coefficient between.

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The midpoint of cd is -9,-10, endpoint c has coordinates of -1,9 what is the endpoint of d?

Answers

$A(x_A;\ y_A);\ B(x_B;\ y_B)\n\nThe\ midpoint:M_(AB)\left((x_A+x_B)/(2);\ (y_A+y_B)/(2)\right)\n\n\nM_(CD)(-9;-10);\ C(-1;\ 9);\ D(x;\ y)\n\n(-1+x)/(2)=-9\ \ \ \ |multiply\ both\ sides\ by\ 2\n-1+x=-18\ \ \ \ |add\ 1\ to\ both\ sides\nx=-17\n\n(9+y)/(2)=-10\ \ \ \ \ |multiply\ both\ sides\ by\ 2\n9+y=-20\ \ \ \ |subtract\ 9\ from\ both\ sides\ny=-29\n\nAnswer{\boxed{C(-17;-29)}$

From c to the midpoint the coordinates have changed from (-1;9) to (-9;-10). So the difference is (-9-(-1); -10-(9)) that equals (-8;-19). And you should add (-8;-19) to the coordinates of the middle point (-9;-10). So we get (-9+(-8); -10+(-19)) that is (-17;-29). This is the endpoint of d. Answer: d (-17;-29).

How do i find brainly ai in the menu

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Answer: You will see it and it will say ask ai. It should be under the qeustion you ask

Step-by-step explanation:

A coin is weighted so that the probability of getting heads is 0.70. If the coin is flipped twice, what is the probability of getting a tail followed by a head?

Answers

Hello,

p=3/10*7/10=21/100=0.21
====================

If DE = 7x + 3 and EF = 9x - 19,
then EF = ?

Answers

The measure of line segment EF from the given line segment DF is 80 units.

From the given line segment $DE=7x+3$ and $EF=9x-19$ .

A midpoint of a line segment is the point on a segment that bisects the segment into two congruent segments.

In the given line segment $DE=EF$

$7x+3=9x-19$

$3+19=9x-7x$

$2x=22$

$x=(22)/(2)$

$x=11$

Substitute $x=11$ in $EF=9x-19$ , we get

$EF=9(11)-19$

$EF=80$

Therefore, the measure of line segment EF is 80 units.

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Answer:

Step-by-step explanation:

7x + 3 = 9x - 19

-2x + 3 = -19

-2x = -22

x = 11

DE= 7(11) + 3 = 77 + 3 = 80

EF = 9(11) - 19 = 99 - 19 = 80

80 + 80 = 160 for DF

Find the square (2m-8)^2

Answers

The value of expression is,

⇒ (2m - 8)² = 4m² - 24m + 64

What is Quadratic equation?

An algebraic equation with the second degree of the variable is called an Quadratic equation.

Given that;

The expression is,

⇒ (2m - 8)²

Now,

We know that,

The formula is,

⇒ (a - b)² = a² - 2ab + b²

Hence, We get;

⇒ (2m - 8)² = (2m)² - 2 × 2m × 8 + (8)²

= 4m² - 24m + 64

Thus, The value of expression is,

⇒ (2m - 8)² = 4m² - 24m + 64

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(2m - 8)²
(2m - 8)(2m - 8)
2m(2m - 8) - 8(2m - 8)
2m(2m) - 2m(8) - 8(2m) + 8(8)
4m² - 16m - 16m + 64
4m² - 32m + 64

PLEASE HELP ME ASAP!

Answers

Angle ABC = half arc (ac)
2 * (4x - 3.5) = (4x + 17)
8x -7.0 = 4x + 17
4x = 24
x = 6
Angle ABC (4x -3.5) = 24 - 3.5 = 20.5

Arc AC = (4x + 17) = 24 + 17
Arc AC = 41

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