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inessss [21]
3 years ago
15

Which is a factor of 2x^2+8x-90

Mathematics
1 answer:
raketka [301]3 years ago
5 0

Answer:

2(x-5)(x+9)

Step-by-step explanation:

1) divide whole thing by 2 you get  x^2+4x-45

2) from there you can factor it out to (x-5)(x+9)

3) Add the 2 back in on the front

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6.1/5(12b+5) for b = 5/6​
Temka [501]

Answer:

Step-by-step explanation:

6.1 / 5 ( 12b + 5 )

b = 5/6

by substituting,

6.1 / 5 ( 12 × 5/6 + 5 )

1.22 × 15

= <u><em>18.3</em></u>

Hope this helps

plz mark as brainliest!!!!!!!

Stay safe!!

7 0
3 years ago
Triangle PQR has vertices P(–2, 6), Q(–8, 4), and R(1, –2). It is translated according to the rule (x, y) → (x – 2, y – 16). Wha
Rudik [331]
The point P has coordinates (x,y) = (-2,6) so x = -2 and y = 6

Replace x and y with those values into the rule given
So,
(x,y) ---> (x-2, y-16)
turns into
(-2,6) ---> (-2-2, 6-16) = (-4,-10)

P = (-2,6)
P ' = (-4,-10) 

The answer is -10 because your teacher just wants the y coordinate of point P'
4 0
3 years ago
Mai conducted an experiment by flipping a fair coin 200 times. The coin landed heads up 110 times. Which statement about the coi
Alexandra [31]
The experimental probability of the coin landing heads up is 110/200 = 11/20.
The theoretical probability is 1/2
4 0
3 years ago
Read 3 more answers
Determine the kinetic energy of a 100-kg roller coaster car that is moving with a speed of 20.0/ms.
rjkz [21]

Answer:

The kinetic energy is 20,000\ J

Step-by-step explanation:

The kinetic energy of a body is defined as:

k = \frac{1}{2}ms ^ 2

Where <em>m</em> is the mass of the roller coaster car

<em>s</em> is the speed and <em>k</em> is the kinetic energy

We know that s = 20\ m/s

m = 100\ kg

Then the kinetic energy of the roller coaster car is:

k = \frac{1}{2}(100)(20) ^ 2\\\\k = 50(20) ^ 2\\\\k = 50 * 400\\\\k = 20,000\ J

3 0
3 years ago
Should one divulge information given in confidence
pickupchik [31]
No you should not do that.
5 0
3 years ago
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