2 years ago

For the expression 28-28z to have a negative value, what must be true about the value of z?

Mathematics

1 answer:

SpyIntel [72]2 years ago

7 0

Answer:

z is greater or equal than 1

Step-by-step explanation:

28-28z<=0

28<=28z

z>=1

You might be interested in

What is the value of 2/3^-4

Reptile [31]

Answer:

$\frac{16}{49}$

Step-by-step explanation:

To solve problems like this, we need to multiply the base , $\frac{2}{3}$ , the amount of times as the exponent, 4.

Essentially, the equation is $\frac{2}{3}$ x $\frac{2}{3}$ x $\frac{2}{3}$ x $\frac{2}{3}$ .

The product would be $\frac{16}{49}$ .

Now we can't forget that the exponent is a negative. But because the exponent is an even number, we don't need to worry about that.

Hope this helped :)

8 0

2 years ago

Circumference (Level 2)<br> Need help with this.

goblinko [34]

.25 meters is the answer

6 0

2 years ago

Read 2 more answers

A certain backpack costs $22, and there is 4% sales tax. What is one way to determine what the amount of sales tax will be? Sele

Mademuasel [1]

Answer:

$0.88

Step-by-step explanation:

cost per 1% = 22 ÷ 100 = 0.22

⇒ cost of 4% = 4 x 0.22 = 0.88

4% = 4/100 = 0.04

⇒ 4% of 22 = 0.04 x 22 = 0.88

Step-by-step explanation:

8 0

2 years ago

1 16

kifflom [539]

Answer:

Step-by-step explanation:

7 0

2 years ago

The cleaning crew cleans 100 homes per week and earns a weekly economic profit of $200. the cleaning crew charges $80 per home.

loris [4]

$80(100) + $200 = $8200

8 0

3 years ago

For the expression 28-28z to have a negative​ value, what must be true about the value of z​?

For the expression 28-28z to have a negative value, what must be true about the value of z?