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strojnjashka [21]
3 years ago
6

How many solutions ?

Mathematics
1 answer:
Volgvan3 years ago
5 0

Answer:

no Solutions

Step-by-step explanation:

-2x -2y = 6

10x + 10y = -30

multiply the first equation by 5 and add the tower equations together

-10x - 10y = 30

+ 10x +10y = -30

you get all zeros so it had no solutions

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Find the slope passing through the points (-3,4) and (2,-1).
stellarik [79]
1)

Given two points: (x₁,y₁) and (x₂,y₂) the slope of the line passing through these points would be: 
m=(y₂-y₁)/(x₂-x₁)

Data:
We have two points, (-3,4) and (2,-1), therefore, the slope of the line passing through these points will be: 

m=(-1-4) /(2+3)=-5/5=-1

Answer: The slope would be -1. 

2)
slope-intercept form of a line:
y=mx+b
m=slope
b=y-intercept

Therefore:
m=2
b=y-intercept=-4

The line would be: y=2x-4

answer: the equation of this line would be: y=2x-4
3 0
3 years ago
Which sentence can represent the inequality One-half x + three-fourths greater-than-or-equal-to 5 and one-fourth?
hodyreva [135]

Answer:

  The sum of half of a number and three-fourths is at least five and one quarter

Step-by-step explanation:

It's all about making sense of an English sentence.

  "half the sum ..." is different from "the sum of half ..."

And ...

  "at least" and "not less than" mean the same (≥)

  "not more than" and "at most" mean the same (≤)

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Since all of the expressions are written out in words, it is a matter of matching the ideas expressed. That's a problem in reading comprehension, not math.

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"One-half x + three-fourths [is] greater-than-or-equal-to 5 and one-fourth"

  means the same as ...

"The sum of half of a number and three-fourths is at least five and one quarter"

6 0
4 years ago
Read 2 more answers
Determine three fractions that are equivalent to 1/5 Explain how you know
olga nikolaevna [1]

Answer:

2/10, 4/20, 8/40

Step-by-step explanation:

multiply the numerator and denominator by the same number.

It would be the reverse of reducing to the lowest denominator.

8 0
3 years ago
PLEASE HELPPPP
Studentka2010 [4]

Answer:

1774.67π mm³

Step-by-step explanation:

Please find attached to this question, the required diagram.

From the question, we are told we have a spherical mold.

We would find the volume of a spherical mold using the formula for the volume of a sphere.

The volume of a sphere is calculated as : 4/3πr³

From the attached diagram, we are given the Diameter do the spherical mold as: 22mm

Radius of the spherical mold = Diameter ÷ 2 = 22mm÷ 2 = 11mm

The volume of the spherical mold = 4/3 × π × 11³

= 1774.6666667π mm³

Approximately and leaving it in terms of pi (π)= 1774.67π mm³

5 0
4 years ago
Find an equivalent ratio in simplest terms:<br> 54 : 70
Elena L [17]

Answer:

27/35.

I can break it down for you to understand if u want.

Step-by-step explanation:

8 0
3 years ago
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