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3 years ago

I need help on this.

Mathematics

2 answers:

Vaselesa [24]3 years ago

6 0

Answer:

Subtract 476 from 1400.

1400-476=924

They lost 924 pounds.

Tcecarenko [31]3 years ago

3 0

Answer:

Jon Brower Minnoch who used to be 1400 pounds, lost 924 pounds, and reached the weight of 476 pounds.

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The Venn diagram shows the results of two events resulting from rolling a number cube.

tankabanditka [31]

Answer:

$P(A|B)=\frac{2}{3}$

$P(A)*P(B)=\frac{1}{3}$

$P(A) =\frac{2}{3}$

$P(B) =\frac{1}{2}$ .

Step-by-step explanation:

We use the Venn diagram to calculate the desired probabilities.

Note that there are 6 possible results in the sample space

S = {1, 2, 3, 4, 5, 6}

Then note that in the region representing the intercept of A and B there are two possible values.

$P (A\ and\ B) = \frac{2}{6} = \frac{1}{3}$

In the region that represents event A there are 4 possible outcomes {4, 5, 1, 2}

$P(A) = \frac{4}{6} = \frac{2}{3}$

In the region that represents event B there are 3 possible outcomes {1, 2, 6}

$P(B) = \frac{3}{6} = \frac{1}{2}$ .

Now

$P(A | B)=\frac{P(A \ and\ B)}{P(B)}\\\\P(A | B)=\frac{\frac{1}{3}}{\frac{1}{2}}\\\\P(A|B)=\frac{2}{3}$

$P(A)*P(B)=\frac{2}{3}*\frac{1}{2}=\frac{1}{3}$

6 0

4 years ago

If a = √3-√11 and b = 1 /a, then find a² - b²

Serga [27]

If $b=\frac1a$ , then by rationalizing the denominator we can rewrite

$b = \dfrac1{\sqrt3-\sqrt{11}} \times \dfrac{\sqrt3+\sqrt{11}}{\sqrt3+\sqrt{11}} = \dfrac{\sqrt3+\sqrt{11}}{\left(\sqrt3\right)^2-\left(\sqrt{11}\right)^2} = -\dfrac{\sqrt3+\sqrt{11}}8$

Now,

$a^2 - b^2 = (a-b) (a+b)$

and

$a - b = \sqrt3 - \sqrt{11} + \dfrac{\sqrt3 + \sqrt{11}}8 = \dfrac{9\sqrt3 - 7\sqrt{11}}8$

$a + b = \sqrt3 - \sqrt{11} - \dfrac{\sqrt3 + \sqrt{11}}8 = \dfrac{7\sqrt3 - 9\sqrt{11}}8$

$\implies a^2 - b^2 = \dfrac{\left(9\sqrt3 - 7\sqrt{11}\right) \left(7\sqrt3 - 9\sqrt{11}\right)}{64} = \boxed{\dfrac{441 - 65\sqrt{33}}{32}}$

5 0

2 years ago

PLEASE SOLVE!!!! ASAP!!!! Thanks<br><br> 2[(∛8)²+1/8*16]

ehidna [41]

2[(∛8)²+1/8*16]

(∛8)² = (∛8) x (∛8) = (∛64) = 4
1/8 *16 = 16/8 = 2
Total expression = 2 * (4+2)= 12

6 0

4 years ago

How much is 40 gallonsMai is filling her fish tank. Water flows into the tank at a constant rate. Complete the table below and a

svp [43]

I’ll need to see the table and I’ll be able to help

5 0

3 years ago

In 2005, the Summerville Journal had 110,000 subscriptions. The number of subscriptions subsequently decreased by 8% each year.

barxatty [35]

Answer:

The number of subscription will be 26,655 in 2022.

Step-by-step explanation:

In 2005, the number subscription is 110,000 and it is decreased at a rate 8% per year.

After 1 year number of subscription is 110,000- 8% of 110,00

=110,000(1-8%)

After 2 years number of subscription is 110,000(1-8%) -8% of 110,000(1-8%)

=110,000(1-8%)(1-8%)

=110,000(1-8%)²

After 2 years number of subscription is 110,000(1-8%)² -8% of 110,000(1-8%)²

=110,000(1-8%)²(1-8%)

=110,000(1-8%)³

....

and so on.

After t year the number of subscription is

$S(t)=110,000(1-8\%)^t$

t= 2022-2005=17 years

$\therefore S(t)=110,000(1+0.08)^{17}$

≈26,655

The number of subscription will be 26,655 in 2022.

6 0

4 years ago