3 years ago

Twice a increased by the cube of a equals b

Mathematics

1 answer:

Kobotan [32]3 years ago

5 0

Twice a increased by the cube of a equals b :

2a + a^3 = b

You might be interested in

What’s 9+10. I really need to know.

Sonja [21]

Answer:

Step-by-step explanation:

Trust me - 19

6 0

3 years ago

Read 2 more answers

Rachel scored 670 on the analytic portion of the GRE (Graduate Record Exam). GRE scores are normally distributed with a mean of

Mkey [24]

Answer:

Rachel's score is 2.3333 standard deviations above the mean

Step-by-step explanation:

GRE scores are normally distributed

Let be G the random variable ''Gre scores''

G ~ N (mean,standard deviation)

G ~ N (600,30)

Rachel scored 670 on the analytic portion of the GRE.

670 - 600 will be the score above the mean

670 - 600 = 70

To find this in terms of standard deviation we divide by the standard deviation

70/standard deviation = 70/30 = 7/3 = 2.33333333 standard deviations

3 0

3 years ago

8 sin2 x + cos x - 5 = 0

soldier1979 [14.2K]

$8 {sin}^{2} x + cos \: x - 5 = 0$

$recall \: that \: {sin}^{2} x + {cos}^{2} x = 1$

$then \: {sin}^{2} x = 1 - {cos}^{2} x$

then substitute,

$8( 1 - {cos}^{2} x) + cos \: x - 5 = 0$

After Further Simplication,

$8 {cos}^{2} x - cos \: x - 3 = 0$

$let \: y = \cos(x)$

$8 {y}^{2} - y - 3 = 0$

use quadratic formulae

$y = 0.375 \: or \: - 0.25$

therefore

$\cos(x) = 0.375 \: or \: - 0.25$

$x = 70degrees \: or \: 104.5degrees$

4 0

3 years ago

Someone help me with this and tell me the answer

rodikova [14]

Answer:

The quotient is 264 and the remainder is 625

4 0

3 years ago

To prove quadrilateral wxyz is a parallelogram, travis begins by proving △wzy ≅ △yxw by using the sas congruency theorem. which

mylen [45]

Answer:

Answer is : ∠ZWY ≅ ∠XYW by the alternate interior ∠s theorem, WY ≅ WY by the reflexive property and WZ ≅ XY by the given.

5 0

3 years ago

Read 2 more answers