All categories

3 years ago

How to you solve x2 -20x -17 = -53

Mathematics

1 answer:

Gennadij [26K]3 years ago

7 0

Answer:

solve for x

x=2

Step-by-step explanation:

x2-20x-17=-53

reorder like terms x2= 2x 2x=20x-17=-53

collect like terms 2x-20x=-18x -18x-17=-53

move constant to the right hand side and change its sign -18x=-53+17

calculate the sum -53+17= -36 -18x=-36

divide both sides by -18 -18x÷-18= x -36÷-18=2

x=2

You might be interested in

Bonus: Find the measure indicated. *

velikii [3]

Answer:

AC = 16 in.

Step-by-step explanation:

AD = CD = 10 in.

BD = 6 in.

AC = 2(AB) = ?

Apply pythagorean theorem to find AB

AB² = AD² - BD²

Substitute

AB² = 10² - 6²

AB² = 64

AB = √64

AB = 8

Therefore:

AC = 2(AB) = 2(8)

AC = 16 in.

5 0

2 years ago

Use P E M D A S to solve this number problem.

eimsori [14]

Yes your answer is correct

5 0

2 years ago

Read 2 more answers

Can you explain dot plotting?

Pepsi [2]

A dot chart or dot plot is a statistical chart consisting of data points plotted on a fairly simple scale, typically using filled in circles. There are two common, yet very different, versions of the dot chart.

4 0

3 years ago

Ms. Warren asked her students to write a sequence of steps to construct a line parallel to a given line MN and passing through a

joja [24]

The answer to this question is A

5 0

3 years ago

Find f(-4) for f(x)=9(3)^x

jeka94

Answer:

$f(-4) = \dfrac{1}{9}$

Step-by-step explanation:

$f(x) = 9(3)^x$

$f(-4) = 9(3)^{-4}$

$f(-4) = 3^2 \cdot 3^{-4}$

$f(-4) = 3^{-2}$

$f(-4) = \dfrac{1}{9}$

3 0

2 years ago

Read 2 more answers