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3 years ago

When graphing an inequality what two signs are an open circle

Mathematics

1 answer:

notka56 [123]3 years ago

7 0

Answer:

< and >

Step-by-step explanation:

If it doesnt have the line under it, it means the number is not included

an open circle means the number is not included

closed circle means its included

Hope this helps ^-^

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Plzzzz helpppp nowww

emmasim [6.3K]

Answer:

116°

Step-by-step explanation:

In a triangle, the sum of all interior angles is 180°

<PRS + <RSP + <SPR = 180°

51° + <RSP + 65° = 180°

<RSP = 180° - 65° - 51° = 180° - 116° = 64°

Since, <PST and <RSP are supplementary angles,

<PST + <RSP = 180°

<PST = 180° - 64° = 116°

6 0

3 years ago

Hey please help, thank you!!

marin [14]

Answer:

Step-by-step explanation:

So we have the equation:

$A=\frac{1}{2}(12)(3+7)$

And we want to find out which of the answer choices is not equivalent.

Thus, let's go through each of the choices.

We have:

$\frac{12(3+7)}{2}$

This is correct.

Our original equation can be written as:

$A=\frac{1}{2}(\frac{12(3+7)}{1})$

And if we multiply straight across:

$A=\frac{12(3+7)}{2}$

We'll get choice A. So choice A is correct.

We have:

$6(3+7)$

This is also correct.

From our original equation:

$A=\frac{1}{2}(12)\cdot(3+7)$

If we multiply the first term together:

$A=6(3+7)$

We'll get choice B. So, choice B is correct.

We have:

$0.5(12)(10)$

This is correct as well.

If we reduce 1/2 to decimal form and add the operations within the parentheses in the original equation, we will get:

$A=\frac{1}{2}(12)(3+7)\\A=0.5(12)(10)$

So, C is also correct.

We have:

$\frac{12}{2}\times\frac{10}{2}$

Note that this is not correct.

This attempted to use the distributive property. However, the distribute property does not work for multiplication. For instance:

$3(2+1)\text{ indeed equals } 3(2)+3(1)$

However:

$3(2\times1)\text{ does not equal} 3(2)\times3(1)$

So, choice D is not equivalent.

So choice D is our answer :)

If we evaluate it, we will get 30, in contrast to the 60 of the others.

5 0

3 years ago

Solve for X answer as a whole number

stepladder [879]

Step-by-step explanation:

${a}^{2} = {4}^{2} + {2}^{2} \\ {a}^{2} = 16 + 4 \\ {a}^{2} = 20 \\ a= \sqrt{20} \\ {x}^{2} = {( \sqrt{20} )}^{2} + {3}^{2} \\ {x}^{2} = 20 + 9 \\ {x}^{2} = 29 \\ x = 5.385$

as a whole number = 5

6 0

3 years ago

Graph the line that passes through the points (1,-9) and (1,-3) and determine the equation of the line

stellarik [79]

Answer:

x = 1

Step-by-step explanation:

Note that the x-coordinates of the two given points are identical. This tells us immediately that the line is a vertical one whose slope is undefined.

The equation of this line is x = 1.

7 0

3 years ago

Maths Assignment 4-a^2

galben [10]

Answer:

(2-a)^2

(2+a) (2-a)...

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3 years ago

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