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2 years ago

Solve the equation using the Zero-Product Property (X-9)(x+7)=0

Mathematics

1 answer:

aleksandr82 [10.1K]2 years ago

4 0

(x-9)(x+7)=0
x-9=0 or x+7=0
x=9 or x=-7

:)

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Citrus2011 [14]

Answer:

x=34

Step-by-step explanation:

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2 years ago

M divided by 3 - 6 = 4<br><br> show steps<br> find what m is

Elanso [62]

Answer:

m = 30

Step-by-step explanation:

(m/3) - 6 = 4

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2 years ago

Pythagorean theorem 19^2 + 21^2=x^2

alexira [117]

Answer:

x = 28.32 units.

Step-by-step explanation:

Given:

Longer leg = 21

Shorter leg = 19

Hypotenuse = x

To Find:

Hypotenuse = x = ?

Solution:

Pythagoras Theorem States that

$(\textrm{Hypotenuse})^{2} = (\textrm{Shorter leg})^{2}+(\textrm{Longer leg})^{2}$

Substituting of the given value above equation we get

$x^{2} =21^{2}+ 19^{2}\\ \\x^{2}=441 + 361\\\\x^{2}=802\\ \therefore x=\pm\sqrt{802} \\\textrm{as x cannot be negative}\\\therefore x=\sqrt{802}\\\\\therefore x=28.319\ units\\\therefore x=28.32\ units$

7 0

3 years ago

Read 2 more answers

Solve for x and y: x=5−2y 6y=10−3x

Mama L [17]

we have

x=5−2y ---> multiply by 3 both sides-----> 3x=15-6y-----> 6y=15-3x----> equation 1

6y=10−3x------> equation 2

equation 1 and equation 2 has the same slope

the lines are parallel

slope m=-3/6-----> m=-1/2

there are no solution

the answer is the option

b. There is no solution

7 0

3 years ago

A sports club has 38 members. They all play either squash or tennis.

Brut [27]

Step-by-step explanation:

Since we have given that

Total number of members in a sports club = 38

Number of women in the club = 14

Number of women play tennis =10

Number of men play tennis = 8

Since they all play either squash or tennis.

Total number of men in the club is given by

$38-14\\\\=24$

So, number of men playing squash is given by

$24-8\\\\=16$

Number of women playing squash is given by

$20-16\\\\=4$

so, the table is shown below :

Men Women Total

Tennis 16 4 20

Squash 8 10 18

Total 24 14 38

6 0

2 years ago