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3 years ago

-2x2+x+8=0 use the quadratic formula to solve the equation

Mathematics

1 answer:

lisabon 2012 [21]3 years ago

5 0

X = -1 is the answer to -2x2+x+8=0

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Explain how you got the answer(:

Natali [406]

Hey there :) I'm pretty sure that your answer is D) ∠S ≅ <span>∠Y because corresponding angles of similar triangles are congruent.

I think that it is the answer because if you shift your paper around, and look at the angles from different views, you can tell that angles S and Y are congruent, or the same, because of the way that both angles are at the end of the longer sides of both triangles.

So, your answer is D!

~Hope this helped!~</span>

8 0

2 years ago

Read 2 more answers

Hmm who is smart enough for this :)

Goryan [66]

Answer:

$-\frac{9}{15}$

-0.7

Step-by-step explanation:

Both $-\frac{9}{15}$ and -0.7 are negative so therefore, 1 is the greatest

$-\frac{9}{15}$ is -0.6 which is greater than -0.7 so it's the 2nd greatest

and -0.7 is the least

7 0

2 years ago

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pamela claims that if you multiply a fraction that is negative by another fraction that is negative, the product will also be ne

svetoff [14.1K]

Pamela is incorrect. When you multiply anything negative by a negative, the product will always be a positive. Because the two negative signs cancel each other out.

5 0

3 years ago

-10x+45 find x when x =15

leonid [27]

Your answer is -105 pal

3 0

2 years ago

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Which of the following is equivalent to -2/3?

arlik [135]

Answer:

Step-by-step explanation:

-2/3 = -4/6 = -6/9 = -8/12

= -10/15 = -12/18 = -14/21 = -16/24

= -18/27 = -20/30 = -22/33 = -24/36

= -26/39 = -28/42 = -30/45 = -32/48

= -34/51 = -36/54 = -38/57 = -40/60

= -42/63 = -44/66 = -46/69 = -48/72

= -50/75 = -52/78 = -54/81 = -56/84

= -58/87 = -60/90 = -62/93 = -64/96

= -66/99 = -68/102 = -70/105 = -72/108

= -74/111 = -76/114 = -78/117 = -80/120

= -82/123 = -84/126 = -86/129 = -88/132

= -90/135 = -92/138 = -94/141 = -96/144

= -98/147 = -100/150 = -102/153 = -104/156

= -106/159 = -108/162 = -110/165 = -112/168

= -114/171 = -116/174 = -118/177 = -120/180

= -122/183 = -124/186 = -126/189 = -128/192

= -130/195 = -132/198 = -134/201 = -136/204

= -138/207 = -140/210 = -142/213 = -144/216

= -146/219 = -148/222 = -150/225 = -152/228

= -154/231 = -156/234 = -158/237 = -160/240

= -162/243 = -164/246 = -166/249 = -168/252

= -170/255 = -172/258 = -174/261 = -176/264

= -178/267 = -180/270 = -182/273 = -184/276

= -186/279 = -188/282 = -190/285 = -192/288

= -194/291 = -196/294 = -198/297 = -200/300

5 0

2 years ago