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3 years ago

How do I solve this radical equation?

Mathematics

1 answer:

kari74 [83]3 years ago

6 0

You can solve a radical equation by: Square both sides to remove the radical, since . Make sure to square the 8 also! Then simplify. To check your solution, you can substitute 64 in for x in the original equation.

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Just need help on task 2

balu736 [363]

a srry if im wrong

3 0

4 years ago

Find an equation of the plane that contains (3, 4, −9) and is parallel to x + y − 5z = 1. (Use x, y, and z for coordinates.)

emmainna [20.7K]

Answer:

x + y - 5z = 52

Step-by-step explanation:

Given data:

Point on the plane (3,4,-9)

parallel to x + y -5z = 1

Finding the normal vector

(1 , 1 , -5)(x, y , z) = 1

the normal vector is (1 , 1 , -5)

formula for finding equation the plane given the normal vector (a,b,c) and point (m,n,o) is as

a(x - m) + b(y - n) + c(z-o)=0

Substituting the data we have

1(x-3) + 1( y- 4) - 5(z+9) =0

x-3 +y -4 -5z -45 = 0

x + y - 5z = 45 +4 +3

x + y - 5z = 52

6 0

3 years ago

What is the equation of the line with the given slope and y-intercept? Choose the correct answer in slope-intercept form and sta

kari74 [83]

Answer:

see explanation

Step-by-step explanation:

the equation of a line in slope- intercept form is

y = mx + b ( m is the slope and b the y-intercept )

here m = $\frac{1}{3}$ and b = 13, hence

y = $\frac{1}{3}$ x + 13 ← in slope- intercept form

The equation of a line in standard form is

Ax + By = C ( A is a positive integer and AB, C are integers )

multiply all terms in the slope-intercept form by 3

3y = x + 39 ( subtract 3y from both sides )

0 = x - 3y + 39 ( subtract 39 from both sides )

x - 3y = - 39 ← in standard form

5 0

3 years ago

Anisa went to Dicks Sporting good and bought

MissTica

Answer: $492

The work:

Anisa got $116

58 x 2 = 116

Emma got $376

94 x 4 = 376

Add them: $492

5 0

3 years ago

Read 2 more answers

What number has the value as 50 tens

soldier1979 [14.2K]

50 tens = 50 x 10

50 x 10 = 500

your answer is 500

hope this helps

7 0

3 years ago

Read 2 more answers