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3 years ago

Which inequality has the solution shown below?

Mathematics

1 answer:

olasank [31]3 years ago

8 0

Answer:

Step-by-step explanation:

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An Envelope from the post office is 3 inches wide with a total area of 30 in.² what is the height of the envelope

MrRa [10]

30/3=10

Area= L x W
W= 3
L= 10

30= 3 x10

5 0

3 years ago

Log5(x-1)+log5(x+3)-1=0

jonny [76]

Answer:

there are no real solutions

Step-by-step explanation:

$\log_5(x-1)+\log_5(x+3)-1=0\\\\\log_5(x-1)+\log_5(x+3)=1$

there is a rule that says

$\log_b(a)+\log_b(c)=\log_b(ac)$

so we have

$\log_5(x-1)+\log_5(x+3)=\log_5((x-1)(x+3))=1$

and we have the definition

$\log_a(b)=c\\\\a^{c} =b$

so we have

$5^{1} = (x-1)(x+3)\\\\5=x^{2} -1x+3x-3\\\\5=x^{2} +2x-3\\\\0=x^{2} +2x-3-5\\\\0=x^{2} +2x-8\\\\$

and using the quadratic formula we get that

there are no real solutions

3 0

4 years ago

Read 2 more answers

Which of the following are equations for the line shown below? Check all that

ohaa [14]

Answer:

D. y = -4x - 6

Step-by-step explanation:

→ Work out gradient of line

$\frac{2-6}{-2--3} =\frac{-4}{1} =-4$

→ Write into y = mx + c format

y = -4x + c

→ Substitute ( -2 , 2 ) into the equation to find c

2 = 8 + c

→ Minus 8 from both sides

-6 = c

→ Write full equation y = -4x - 6

7 0

3 years ago

What’s the product of 3x(x² + 4)?

klio [65]

Answer:

3x³ + 12x

Step-by-step explanation:

3x is 3 times x. If we multiply x times x², we get x³. This is because x² can be written as x·x, so if we multiply x by that, we get x·x·x. Since we are multiplying x² by 3x, we get 3x³. Now, we multiply 3x by 4, this gets us 12x. Now, we write it out as 3x³ + 12x.

5 0

3 years ago

Write each fraction in simplest form.If the fraction is already in simplest form,write simplified

Zanzabum

(3/36)

a. divide both by the same number.
b. 3 ÷ 3 = 1, and 36 ÷ 3 = 12
c. The simplest form of 3/36 is 1/12.

(25/30)

a. 25 and 30 are both divisible by 5.
b. 25 ÷ 5 = 5, and 30 ÷ 5 = 6
c. The simplest form of 25/30 is 5/6.

5 0

3 years ago