2 years ago

Please help!!! I will give you BRIANLEIST AND A HEARTED COMMENT AND 5 STARS if you can explain this:(

Mathematics

1 answer:

Agata [3.3K]2 years ago

4 0

Answer:

I can do this give me a min

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Vhat is the equation of the line with a slope of 2 through (-4, 6) in point-slope form?

Harlamova29_29 [7]

Answer:

y=2x+14

Step-by-step explanation:

y-y=m(x-x1)

y-6=2(x-(-4))

y-6=2x+8

+6 +6

y=2x+14

3 0

3 years ago

Chris and lisa went shopping and spent a total of $25.50. Lisa spent $13.50 more than chris spent. Hiw much did lisa spend?

baherus [9]

Answer:

12$

Step-by-step explanation:

$25.50-$13.50=$12

5 0

3 years ago

A student needed to prepare 500mL of 1X TAE buffer to run a QC gel. The stock solution in the lab is 5X TAE. What volumes of sto

Xelga [282]

Answer:

you need 100ml of 5X TAE and 400ml of water.

Step-by-step explanation:

You need to use a rule of three:

$C_1V_1=C_2V_2$

where:

$\left \{ {{C_1= 5X} \atop {C_2=1X}} \right.$

and

$\left \{ {{V_1 = V_{TAE}} \atop {V_2=500ml}} \right.$

Therefore:

$V_{TAE} = \frac{V_2*C_2}{C_1}$

$V_{TAE} = 100ml$

Then just rest the TAE volume to the final Volume and you get the amount of water that you need to reduce the concentration.

3 0

2 years ago

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Solve 2a 2 - 3a - 2 = 0<br><br> {-1/2, 2}<br> {1/2, -2}<br> {}

d1i1m1o1n [39]

Apply slip and slide
a^2-3a-4
(a-4)(a+1)
(a-2)(2a+1)

Find zeros
a-2=0
a=2

2a+1=0
2a=-1
a=-1/2

Final answer: {-1/2, 2}

8 0

2 years ago

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Help SOS LOTS OF SOS

Galina-37 [17]

Answer:

i think its 12 :)

Step-by-step explanation:

20 + 48 = 68

180 - 68 = 112

20 + 48 + 112 = 18 (a full triangle!)

8 0

3 years ago

Read 2 more answers