2 years ago

A portion of the Quadratic Formula proof is shown. Fill in the missing statement.

Mathematics

1 answer:

Angelina_Jolie [31]2 years ago

8 0

$x+\frac{b}{2a}=\pm \frac{\sqrt{b^2 -4ac}}{2a}$

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Use 2 points to write an equation for each function. Exponential functions.

8_murik_8 [283]

$y=ma^x\\\\(0;\ 10)\to m\cdot a^0=10\to m=10\\\\y=10a^x\\\\(1;\ 20)\to 10a^1=20\ \ \ |:10\\a=2\\\\\boxed{y=20\cdot2^x}\\\\check:\\(-2;\ 2.5)\to2.5=10\cdot2^{-2}\\\\2.5=10\cdot\dfrac{1}{2^2}\\\\2.5=10\cdot\dfrac{1}{4}\\\\2.2=2.2\ correct\ :)\\\\(2;\ 40)\to40=10\cdot2^2\\\\40=10\cdot4\\\\40=40$

Answer: $\boxed{y=10\cdot2^x}$

6 0

2 years ago

Anyone who helps me answer I’ll brainliest them :D

Gala2k [10]

Answer:

5x -11

Step-by-step explanation:

it says it there

5 0

2 years ago

Read 2 more answers

3. Find the angle complementary to the angle 80°25′. A. 180° B. 9°35′ C. 90° D. 99°35′

svetlana [45]

"Complementary" angles sum to 90°.

Since we are using minutes as well...

80°+d°+25'+m'=90° subtract 80° from both sides

d°+25'+m'=10° subtract 25' from both sides

d°+m'=9°+60'-25'

d°+m'=9°+35'

9°35'

5 0

3 years ago

What is 81.139 rounded to the nearest tenth

xxMikexx [17]

Tenth = 0.1
81.139 ≈ 81.1

7 0

3 years ago

Plzzzz helppp/also please show work

Veseljchak [2.6K]

Answer:

You will circle the second, the third and the fourth answer: 4, 5, and 9 gallons.

Step-by-step explanation:

Milk=$3.29

4x3.29= 13.16

5x3.29= 16.45

9x3.29= 29.61

8 0

3 years ago