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denpristay [2]
2 years ago
9

Solve for k. 2k - 6 > -10

Mathematics
2 answers:
Olegator [25]2 years ago
4 0

Answer:

k < -2

Step-by-step explanation:

too lazy to explain :/

olga nikolaevna [1]2 years ago
3 0

\sf{}2k - 6 > -10

\\  \\

\dashrightarrow \sf{}2k > -10 + 6

\\  \\

\dashrightarrow \sf{}2k >-4

\\  \\

\dashrightarrow \sf{}k >  \dfrac{-4}{2}

\\  \\

\dashrightarrow \sf{}k >  \dfrac{-2 \times 2}{2}

\\  \\

\dashrightarrow \sf{}k >  \dfrac{-\cancel2 \times 2}{\cancel2}

\\  \\

\dashrightarrow \sf{}k >-2

\\

\sf \therefore \{k =-1,0,1,2,3,4,5,6,7.............. \small \sf{}and \: so \: on \}

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Simplify: -6(<br> 5<br> 3<br> x + 4)
Free_Kalibri [48]

Answer X = 2

Step-by-step explanation:

-30 + -18 - X + - 24,

+ 30                    +30

0                           6

-18 -x = -6

DIVIDE

3 -x = -1

BRING THE 3 OVER TO THE NEGATIVE ONE

YOU GET

X = 2

4 0
3 years ago
X3 + 15x2 - 8x +7<br> (Simplify your answer. Do not factor.)
BigorU [14]

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Answer:

= x^3 + 15x^2 − 8x+7

Step-by-step explanation:

x^3 + 15x^2 − 8x + 7

There are no like terms.

Soo your answer will be: = x^3 + 15x^2 − 8x+7

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Hope I helped!!!

    ~Nuha

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5 0
3 years ago
The vertices of ∆ABC are A(-2, 2), B(6, 2), and C(0, 8). The perimeter of ∆ABC is
VashaNatasha [74]
The perimeter is 22.81 you can use GeoGebra to do this easily.

3 0
3 years ago
Read 2 more answers
1.) Peggy walks at a rate of 2 miles per hour and jogs at a rate of 4 miles per hour. She walked and jogged 3.4 miles in 1.2 hou
Pepsi [2]
1.

<span><span>time she spent walking = T
</span><span>
</span></span>

time she spent jogging = 1.2 - T

<span>
<span>
</span></span>

<span><span>2T + 4(1.2 - T) = 3.4
</span><span>
</span></span>

<span><span>2T + 4.8 - 4T = 3.4
</span><span>
</span></span>

<span><span>2T - 4T = 3.4 - 4.8
</span><span>
</span></span>

- 2T = - 1.4

T = -1.4—2 = 0.7 hours = 42 minutes

Time she spent jogging = 1.2-0.7 = 0.5 hours = 30 minutes

2.

Against wind :2400 miles in 10 hours

With wind : 2400 miles in 8 hours

Speed of plane = x

Speed of wind = y

 

t=d/r

 

against the wind speed x-y mph

with the wind x=y mph

 

2400/(x-y)=10

2400 = 10x-10y

240 =x-y eq.1

2400/x+y=8

2400 = 8x+8y

300 = x+y eq 2

Add eq1 & eq 2 = 740 = 2x

X = 740/2 = 370 mph for plane

 

300 = 370 +y

Y = 370-300 = 70 mph wind speed


6 0
2 years ago
Which statement about these two triangles is true xyz tvw
elena55 [62]
Give the full question and option of <span>Which statement about these two triangles is true xyz tvw.</span>
4 0
3 years ago
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