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3 years ago

The possible outcomes for tossing a coin four times are shown below.

Mathematics

2 answers:

wel3 years ago

8 0

Answer:

TTTT=>(1/2)^4=1/16

stich3 [128]3 years ago

3 0

Hello,

TTTT=>(1/2)^4=1/16
=================

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Suppose that during the 1990s, the population of a certain country was increasing by 1.7% each year. If the population at the en

dem82 [27]

The answer would be 5.491 million, but can be rounded to 5.5 million.

3 0

3 years ago

Ak = v+w solve for a

Dimas [21]

Answer:

a = $\frac{v+w}{k}$

Step-by-step explanation:

Given

ak = v + w ( isolate a by dividing both sides by k )

a = $\frac{v+w}{k}$

5 0

3 years ago

Plz help I want to ace this

nikklg [1K]

Answer:

Step-by-step explanation:

You multiply the 3 numbers.

6 0

2 years ago

30 points! please help!

stiks02 [169]

Answer:

Therefore

15.

$25c^{2}-9$

16.

$(y+8)(y+1)$

17.

$(x-3y)(x-7y)$

Step-by-step explanation:

15.

$(5c^{2} +3)(5c^{2}-3)$

Using the Identity (a + b)(a - b) = (a² - b²) we get

Consider here a = 5c and b = 3 then we will have

$((5c)^{2} -(3)^{2})=25c^{2}-9$ .....as required

16.

$y^{2}+9y+8$

Here Factorize 8 such that sum up to be 9

∴ 8 × 1 = 8 and 8 + 1 =9

$y^{2}+9y+8\\y^{2}+8y+y+8\\y(y+8)+1(y+8)\\(y+8)(y+1)$ ... as required

17.

$x^{2}-10xy+21y^{2}$

Here Factorize 21 such that sum up to be -10

∴ -3 × -7 = + 21 and -3 - 7 = - 10

$x^{2}-10xy+21y^{2}\\x^{2}-3xy-7xy+21y^{2}\\x(x-3y)-7y(x-3y)\\(x-3y)(x-7y)$ ........as required

Therefore

15.

$25c^{2}-9$

16.

$(y+8)(y+1)$

17.

$(x-3y)(x-7y)$

4 0

3 years ago

Read 2 more answers

Need help with this problem

Schach [20]

Here we are:

Triangle PQR is equilateral, all the angles are 60, this means that triangle PSR is an isosceles triangle. 180-90=90 90/2=45 60-45=15
B=15

Hope this helps :)

6 0

3 years ago