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oee [108]
3 years ago
8

PLEASE HELP WILL MARK BRAINLIEST Graph y>-1/2x+3

Mathematics
1 answer:
grigory [225]3 years ago
7 0

Step 1) Graph the line y = (-1/2)x + 3. This line goes through (0,3) as its y intercept and it also goes through (2,2). You can start at (0,3) and move down one unit and to the right two units to arrive at (2,2). The slope of the boundary line is -1/2, meaning that the rise is -1 and the run is 2. A negative rise indicates we go down instead of up.

Step 2) Make the line in step 1 to be a dashed line. This is because there is no "or equal to" as part of the inequality sign. The dashed line says that points on this line are not part of the solution set.

Step 3) Shade above the dashed line. We shade above due to the "greater than" sign. Points above the dashed line are in the shaded solution set. An alternative is to test a point like (x,y) = (0,0) and you'll find y > (-1/2)x+3 turn into 0 > 3 which is a false statement; therefore, (0,0) is not in the solution set. This is expected as (0,0) is below the dashed line.

The final result is what you see in the attached image below. Points A and B help set up the dashed boundary line. Point C is the test point mentioned above which is not in the blue shaded solution region.

Note: the points shown in the diagram are optional when it comes to showing the final answer to your teacher. All you need really is the boundary line and its proper shaded region.

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Simplify the following expressions. (14 +8^2) / 2-10
True [87]

Answer:

29

Step-by-step explanation:

To simply, follow the rules of PEMDAS (Parathensis,Exponents,Multiplication,Division,Addition and Subtraction). So, first do the problems in the parathesis, and to do that you must first do the exponent which is 8 squared, and the answer would be 64, next add 14 + 64 and that would be 78. Now that we are done with the paranthesis we should move on to the division which is 78 divided by 2 so that would be 39 next subtract 39 by 10 which would equal to 29, which is the answer

3 0
3 years ago
A chef cooked 5 kilograms of mashed potatoes for a dinner party. If the guests only ate 4/12 of the amount he cooked, how much d
balandron [24]

Answer:

1\frac{2}{3}\ kg

Step-by-step explanation:

we know that

To find out how much the guests ate, multiply the total amount of kg of mashed potatoes by the 4/12 fraction

so

5(\frac{4}{12})=\frac{20}{12}\ kg

convert to mixed number

\frac{20}{12}=\frac{12}{12}+\frac{8}{12}=1\frac{8}{12}\ kg

simplify

1\frac{8}{12}=1\frac{2}{3}\ kg

4 0
3 years ago
Based on the z-statistic of –2.5 for the sample data, should the null hypothesis be rejected? Yes, because the z-statistic lies
ivann1987 [24]

Answer:

No, because z-statistics lies within the critical region.

Step-by-step explanation:

The z value is calculated to determine whether the null hypothesis should be accepted or rejected. The null hypothesis is rejected when the z-value lies outside the critical region. The critical region is determined by the sample data.

6 0
3 years ago
Read 2 more answers
How much do you save per tire if you purchase the managers special
Zinaida [17]
You save $52 because a pair of tires is 2 tires. If $216 is for 2 tires, it is $432 for 4 tires. The managers special is $380 for 4 tires so, do $432-$380 and you get $52.
8 0
4 years ago
When three squares are joined at their vertices to form a right triangle, the combined area of two smaller squares is the same a
Artist 52 [7]

Answer:

<em>b = 12 cm</em>

Step-by-step explanation:

<u>The Pythagora's Theorem</u>

The area of a square of side length x is

A = x^2

We have three squares, two of which have side lengths of a=5 cm and b= 13 cm.

The combined area of the smaller squares is the same as the area of the largest square. We cannot say at first sight which square is the largest, we'll assume the square of side length of 13 cm is the largest one. Thus:

5^2+b^2=13^2

Where b is the unknown side length.

The above expression corresponds to the Pythagora's Theorem formula. Solving for b:

b^2={13^2-5^2=169-25=144

b=\sqrt{144}

b = 12 cm

7 0
3 years ago
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