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3 years ago

HELP!!!! Which system of Linear inequalities is graphed?

Mathematics

2 answers:

wariber [46]3 years ago

5 0

It is the tyhird one

zzz [600]3 years ago

3 0

x < -2 and y ≤ -x -2

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Can some one please help me with this im having trouble. ?

dlinn [17]

So 12=total
7=blue
black=total-blue=12-7=5
black=5

1. 2/3 of 12 were taken out or 24/3 were taken out or 8 marbles were taken out
there is not enough info becasue it doesn't specify which ones were taken out

2. there is not enough info

3. not chosen=total-chosen=12-8=4 so 4 were chosen

3 0

3 years ago

Nalani says the expression 2+5x cannot be factored using the GCF. Is she correct? Explain why or why not

serious [3.7K]

The correct answer would be D, because there’s no other leading common factors between the two besides one.

5 0

3 years ago

Read 2 more answers

2,550 gallons in 30 days and find the unit rate.round to the nearest hundredth if necessary

faust18 [17]

85 gallons per day is the unit rate. divide 2550 by 30

6 0

3 years ago

#16, really suck at doing equations like this, any help would be appreciated!!

Cerrena [4.2K]

$\bf 16)\\\\
V=\pi r^2 h\implies \cfrac{V}{\pi h}=r^2\implies \pm\sqrt{\cfrac{V}{\pi h}}=r\implies +\sqrt{\cfrac{V}{\pi h}}=r
\\\\\\
17)\\\\
x^2+6x-7=0\qquad 
\begin{cases}
-1\cdot 7=&-7\\
-1+7=&6
\end{cases}\implies (x-1)(x+7)=0
\\\\\\
x=
\begin{cases}
1\\
-7
\end{cases}$

$\bf -------------------------------\\\\
(x+3)^2=16\implies x+3=\pm\sqrt{16}\implies x+3=\pm 4
\\\\\\
x=\pm 4-3\implies x=
\begin{cases}
1\\
-7
\end{cases}$

4 0

3 years ago

Read 2 more answers

A kite flier wondered how high her kite was flying. She used a protractor to measure an angle of 15∘ from level ground to the ki

Nataly [62]

Answer:

12.9 yd

Step-by-step explanation:

It helps if you draw a triangle. Draw a horizontal segment. That is the ground. Now at the left end start a new segment that goes up to the right at approximately 15 degrees until it its other endpoint directly above the right endpoint of the horizontal segment. Connect these two endpoints. The vertical side on the right shows the height of the kite. The hypotenuse is the string.

For the 15-deg angle, the height of the triangle is the opposite leg, and the string is the hypotenuse. The trig ratio that relates the opposite leg tot he hypotenuse is the sine.

$\sin A = \dfrac{opp}{hyp}$

$\sin 15^\circ = \dfrac{h}{50~yd}$

$(50~yd)\sin 15^\circ = h$

$h = (50~yd)(0.2588)$

$h = 12.9~yd$

6 0

3 years ago