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suter [353]
3 years ago
10

Help me please, Domain & Range problem

Mathematics
1 answer:
son4ous [18]3 years ago
8 0

Answer:

Domain: all reals

Range: 4 ≤y <∞

Step-by-step explanation:

The domain is the possible input values(x)

From the arrows at the left and right ends on the graph, the inputs can be all reals

The range is the possible output values (y)

Y goes from 4 to infinity

4 ≤y <∞

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Help pleaseeeeee thanks .<br><br><br> is-2 a solution of the inequality -2x+5__&gt; 9 ?
Sergeu [11.5K]

Answer:

Yes

Step-by-step explanation:

-2 plugged into x would give you 4 then 4 + 5 is 9

7 0
3 years ago
Directions: For the following systems, determine whether or not the ordered triple (1, -1, -2) is a solution to the equations be
uranmaximum [27]

Put the coordinate and check each

#1

\\ \rm\Rrightarrow 3x-3y-z=2

\\ \rm\Rrightarrow 3(1)-3(-1)-(-2)=2

\\ \rm\Rrightarrow 3+3+2=2

\\ \rm\Rrightarrow 6+2=2

\\ \rm\Rrightarrow 8\neq 2

No

#2

\\ \rm\Rrightarrow 2(1)-3(-1)-2=-3

\\ \rm\Rrightarrow 2+3-2=-3

\\ \rm\Rrightarrow 3\neq-3

Unless you did typing mistake on right hand side it's

  • No

#3

\\ \rm\Rrightarrow 1-1-2=-2

\\ \rm\Rrightarrow -2=-2

Yes

#4

\\ \rm\Rrightarrow 1+2(-1)-(-2)=0

\\ \rm\Rrightarrow 1-2+2=0

\\ \rm\Rrightarrow 1\neq0

No

#5

\\ \rm\Rrightarrow 5(1)+1-5(-2)=16

\\ \rm\Rrightarrow5+1+10=16

\\ \rm\Rrightarrow 16=16

Yes

#6

\\ \rm\Rrightarrow 4(1)+5(-1)-6(-2)=-13

\\ \rm\Rrightarrow 4-5+12=-13

\\ \rm\Rrightarrow -1+12=-13

\\ \rm\Rrightarrow 11\neq -13

No

8 0
1 year ago
The line plot shows the amount of grass seed that a landscaper needs for each of her jobs. What is the total amount of grass see
Bond [772]

Answer:

Total = 18\frac{1}{4}

Step-by-step explanation:

Given

The attached line plot

Required

The total

To do this, we simply multiply each grass seed by the frequency (i.e. number of dots), then add up the results.

So, we have:

Total = \frac{1}{4} * 2 + \frac{1}{2} * 3 + \frac{3}{4} * 1 + 1 * 2 + 1\frac{1}{4} * 1 + 1\frac{1}{2} * 3 + 1\frac{3}{4} * 1 + 2 * 3

Total = \frac{1}{2} + \frac{3}{2}+ \frac{3}{4} + 2 + 1\frac{1}{4} * 1 + 1\frac{1}{2} * 3 + 1\frac{3}{4} * 1 + 2 * 3

Convert fractions to improper fraction

Total = \frac{1}{2} + \frac{3}{2}+ \frac{3}{4} + 2 + \frac{5}{4} * 1 + \frac{3}{2} * 3 + \frac{7}{4} * 1 + 6

Total = \frac{1}{2} + \frac{3}{2}+ \frac{3}{4} + 2 + \frac{5}{4} + \frac{9}{2} + \frac{7}{4} + 6

Add fractions

Total = 18\frac{1}{4}

<em>Hence, the total amount is: </em>18\frac{1}{4}\b<em> pounds</em>

4 0
2 years ago
Someone help me please thank you
UkoKoshka [18]
It will take him 8 hours
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3 years ago
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a typical marathon is 26.2 miles Aleexis averages 12 km per 1 hour when running in marathons. Use dimensional Analysis to determ
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