Please help with questions 5 and 6 only!!!

Answers

Answer 1

Answer:

Answer:Hope this helps you...

Please refer the figure while trying to understand these answers.

Step-by-step explanation:

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Which of the following is a solution of x2 − 10x = –36? negative 5 minus i square root of 10 5 plus i square root of 61 negative 5 minus i square root of 11 5 plus i square root of 11

Answers

x^2 - 10x + 36 = 0;
We use the quadratic formula: x = ( - b + or - i $\sqrt{ -b^(2)+4ac }$ )/ (2a);
We have a = 1; b = -10; c = 36;
Then, x = ( 10 + or -i $√(44)$ )/2 = 5 + or - $√(11)$ )/2 ;

Answer:

5 plus i square root of 11

Step-by-step explanation:

I got right on the test.

If the nth term of a sequence is 12n+2 what is the 7th term

Answers

just subsitute 7 for n
12(7)+2
84+2
86
86 is 7th term

$a_7=12\cdot7+2=84+2=86$

What is each number in scientific notation?
0.00000000005
show how you got your answer

Answers

NAMASTE :)

0.00000000005

= 5 × ${10}^( - 11)$

Count the Digits after decimal.
We use minus (-) in power as the digit is in left side of decimal

If they are in right side then we use (+) plus sign in power.

1.What is the cross section formed by a plane that contains a vertical line of symmetry for a tetrahedron? a.triangle
b.square
c.rectangle
d.pentagon
5. What is the cross section formed by a plane that intersects three faces of a cube?
a.triangle
b.square
c.rectangle
d.pentagon

Answers

1. Answer;

- Triangle

Explanation;

The cross section formed by a plane that contains a vertical line of symmetry for a tetrahedron is a Triangle.

A tetrahedron also a triangular pyramid, is a polyhedron composed of four triangular faces, six straight edges, and four vertex corners.

2. Answers

- Triangle

Explanation;

The cross section formed by a plane that intersects three faces of a cube is a Triangle. A cross section is the shape we get when cutting straight through an object. The shape of the cross-section of a solid depends upon the orientation of the cutting plane to the solid.

1. The cross section formed by a plane that contains a vertical line of symmetry for a tetrahedron is:
A ) triangle.
2. The cross section formed by a plane that intersects three faces of a cube is:
A ) triangle.

4|x+5|=20
Thanks for the help

Answers

4 |x = 5| = 20

First, divide both sides by 4. / Your problem should look like: $|x + 5| = 5$
Second, simplify $(20)/(4)$ to 5. / Your problem should look like: $|x + 5| = 5$
Third, break the problem into 2 equations. / x + 5 = 5 and -(x + 5) = 5
Fourth, solve x + 5 = 5. /
Cancel 5 on both sides. / $x = 0$
Fifth, solve -(x + 5) = 5 /
Simplify brackets / $-x - 5 = 5$
Add 5 to both sides / $-x = 5 + 5$
Add 5 + 5 / $-x = 10$
Multiply both sides by -1 / $x = -10$
x = -10
Sixth, collect the solutions to the problems. / Your problem should look like: $x = -10, 0$

Answer: x = -10, 0

4Ix+5I=20
$4(-(x+5))=20$
$4(-x-5)=20$ distributhing 4 through parantheses
$-4x-4*5=20$
$-4x-20=20$
$-4x=20+20$
$-4x=40$ divide by -4
$x= (40)/(-4)$ simplify
$x=-10$
The answer is : - 10

Find thesimplfies form of the expression Give your answer in scientific notation. (8x10^4)(9x20^-8)

Answers

The Answer Would be 0.0072

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