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3 years ago

Do this for a cookie plz ;)

Mathematics

1 answer:

Anika [276]3 years ago

7 0

Answer:

i just want the cookie so can i have it ? ._.

Step-by-step explanation:

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Factor 8x^3+2x^2-20x-5

IrinaK [193]

Answer:

(4x+1)(2x^2-5)

Step-by-step explanation:

3 0

4 years ago

A husband and wife have normal vision, although both of the couple's fathers are red–green color-blind, an inherited X-linked re

Mekhanik [1.2K]

Answer:

1/2

Step-by-step explanation:

Since the recessive gene is carried in the x chromosome and a father can only pass it to a daughter, the father doesn't have the disease nor carries it.

The mother carries the recessive gene because her father passed her his conditioned gene (only having one x chromosome), while her mother gave her a normal one so she can have normal vision.

The chance of having a boy or a girl is 1/2 and the chance of this baby of having both recessive gene is null because in order to have a girl that is color blind both her x chromosomes must have the recessive gene, but the father can't pass it since he doesn't carries it. Therefore the combined probability is 1/2*(1-0) = 1/2.

7 0

3 years ago

The polygon below represents a regular octagon.

gayaneshka [121]

Answer:

a). x = 135°

b). y = 45°

c). z = 67.5°

Step-by-step explanation:

Since sum of interior angles of a regular polygon is represented by,

Sum of interior angles = (n - 2) × 180°

Here n = number of sides

For a regular octagon, n = 8

Sum of interior angles = (8 - 2) × 180° = 1080°

And measure of one interior angles = $\frac{\text{Sum of interior angles}}{n}$

x = $\frac{1080}{8}$

x = 135°

From the figure attached,

Angle C has been divided in 6 equal parts,

Therefor, m∠ECD = $\frac{135}{6}$ = 22.5°

Since ∠ECD ≅ ∠CED,

m∠CED = 22.5°

Since m∠E = 135°

m∠FEC = 135 - 22.5 = 112.5°

In ΔFEC,

m∠FEC + m∠ECF + m∠CFE = 180°

112.5 + 22.5 + z = 180

z = 180 - 135

z = 45°

Similarly, in ΔCGF,

m∠CGF + m∠CFG + m∠GCF = 180°

(135 - y)° + (135 - z)° + 22.5° = 180°

270 - (y + z) + 22.5 = 180

292.5 - (y + 45) = 180

247.5 - y = 180

y = 247.5 - 180

y = 67.5°

3 0

3 years ago

What is the rule of function for (-1,5) (0,7) (1,9) (2,11) (3,13)?

Colt1911 [192]

These (x,y) pairs represent the function
y = 2x+7

4 0

3 years ago

Sole the proportion

Bess [88]

Answer:

11/6 or 1.8333333333

Step-by-step explanation:

$\frac{2x + 1}{6}$ = $\frac{7}{9}$

Cross Multiply:

7 x 6 = 42

9 (2x+1)

42 = 9(2x+1)

42 = 18x + 9

Then, isolate the variable. In order to do so, subtract 9 from both sides.

33 = 18x

Now, divide by 18 (to find x)

33/18 =

1.8333333 or 11/6

8 0

3 years ago