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Brums [2.3K]
2 years ago
15

My baby brother needs help 7z+4-9z=8 what is z=

Mathematics
1 answer:
andrew11 [14]2 years ago
5 0
I believe the answer is -2
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A department store buys 300 shirts at a cost of ​$2,100 and sells them at a selling price of ​$10 each. Find the percent markup
denis23 [38]

Answer:

markup 3 dollars a shirt. Total markup 900$

Step-by-step explanation:

4 0
2 years ago
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Which of the following is a trinomial with a constant term?
Cloud [144]

Option D x+2y+10 .

A trinomial with a constant term will have three terms, and one of those terms will be a constant, which is a number.

we also know about the Constant

A fixed value. In Algebra, a constant is a number on its own, or sometimes a letter such as a, b or c to stand for a fixed number.

Some relatable terms are :

Monomial: Polynomial having a single term.

Binomial: Polynomial having two terms.

Trinomial: Polynomial having three terms.

In given option we'll define

in option A there is no constant .

option B there i sonly given x which is also not constant.

further in option c it is simply binomial in which only two terms are given without constant .

so at last conclusion is in option D there are three terms are given with one constant which is number 10 .

x+2y+10 is trinomial with a constant.

For more information about Polynomial

visit  brainly.in/question/3793499

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8 0
2 years ago
Researchers collected data from 100 randomly chosen counties in Texas on pollution levels and asthma rates. Pollution levels wer
lesya692 [45]

Answer:

The answer is "3.14".

Step-by-step explanation:

The coefficient of pollution level is "b" and "a" intercept

\to y=a+bx\\\\  

We must verify it.

H_0 :\beta = 0\\\\H_a : \beta \neq 0\\\\

Beta \to b=1.76, SE=0.56 \ Estimate

The statistics on tets are now provided

\to t=\frac{b}{SE}=\frac{1.76}{0.56}=3.14

Because statistics will be more than critical (1.984) values, we thus rejectH_0

7 0
3 years ago
Graph 5x+y=2 and 5x-y=4
Andru [333]

Answer:

What do you mean

Step-by-step explanation:


7 0
3 years ago
richard bought rolls for a bbq he bought 4 1/4 dozen wheat rolls and 5 2/3 snowflake rolls if 4 1/3 were eaten at the bbq how ma
victus00 [196]
The equation for this would be 41/4 + 52/3 - 41/3= ?
So then you just change all the denominators to their lcm, which is 12 and multiply the numerator accordingly.
123/12 + 208/12 - 164/12 = 167/12
4 0
3 years ago
Read 2 more answers
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