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Nadya [2.5K]
3 years ago
7

Which expressions are equivalent to -56z + 28.

Mathematics
1 answer:
NeX [460]3 years ago
5 0

Answer:

B and C

Step-by-step explanation:

(-7)•8z = -56z

(-4)•(-7)=28

and

40•(-1.4)= -56z

40•0.7= 28

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Hi!
Dima020 [189]

Answer:

90 men

Step-by-step explanation:

just keep the ratio constant

3:7

equals 10 parts

300/10=30

3*30:7*30

90 men and 210 women

hope this helps!!! :)

5 0
3 years ago
Read 2 more answers
Select the correct answer.
alekssr [168]

Using scientific notation, the correct statement is given by:

C. Corporation C owns the most land. Corporation A owns 8 times more land than corporation B.

<h3>What is scientific notation?</h3>

A number in scientific notation is given by:

a \times 10^b

With the base being a \in [1, 10).

Considering the amounts in scientific notation, the standard amounts in acres of each corporation are given as follows:

  • Corporation A: 3.2 \times 10^5 = 320000 = 320,000.
  • Corporation B: 4 \times 10^4 = 40000 = 40,000.
  • Corporation C: 4.3 \times 10^5 = 430000 = 430,000.

Hence corporation C owns the most land. 320,000/40,000 = 8, hence Corporation A owns 8 times more land than corporation B, and statement C is correct.

More can be learned about scientific notation at brainly.com/question/16394306

#SPJ1

3 0
2 years ago
Find the equation of the line that passes through the point (−3, −4) and is parallel to the line that passes through the points
Dimas [21]

Answer:

y = -\frac{1}{3}x - 5

Step-by-step explanation:

To write the equation of a line use the point slope formula y - y_1 = m(x-x_1). Find m by using the slope formula with the points.

m = \frac{y_2-y_1}{x_2-x_1} = \frac{1--3}{-5-7} =\frac{4}{-12} =-\frac{1}{3}

Since the line is parallel, it will have the same slope.

Substitute m = -1/3 and (-3,-4).

y --4 = -\frac{1}{3}(x --3)\\y + 4 = -\frac{1}{3}(x+3)\\y +4 = -\frac{1}{3}x - 1\\y = -\frac{1}{3}x - 5

8 0
3 years ago
SOMEONE DO NUMBER 1 AND 2 FOR ME, ILL GIVE BRAINLIEST
amid [387]

Answer:

1. The second number line, the third number line, the first number line.

2.

a) \: 1 \frac{7}{8}  >  \frac{7}{4}

b) \:  \frac{21}{5} =  4 \frac{1}{5}

c) \frac{13}{4} <  3 \frac{5}{6}

8 0
3 years ago
The notation y ​= f(x) is called​ _______ notation.
Elis [28]

Answer:

Function notation

Step-by-step explanation:

y=f(x) is in function notation

8 0
3 years ago
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