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3 years ago

if your allowance was a penny doubled everyday how many days would it take for you to have over $1000.00

2 answers:

6 0

11days would give you $1024

Day 1:$1
Day2:$2
Day3:$4
Day4:$8
Day5:$16
Day6:$32
Day7:$64
Day8:$128
Day9:$256
Day10:$512
Day11:$1,024

lisabon 2012 [21]3 years ago

4 0

Answer:

it would take 15 days

Step-by-step explanation:

what I did was list them

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Which expression is equivalent to 2^6 x (2^2)^3? O A 212 B. 215 O c. 236 OD 254

Semenov [28]

A. $\bold{\boxed{\green{2^{12}}}}$

Answer:

Solution given:

$2^6 x (2^2)^3$

we know that

product of power and power is added and power to power is multiplied for same base only.

I.E.

product of same base but different power: $a^b+a^c=a^(b+c)$

power to power : $(a^b)^c=a^(b*c)$

By using above property

$2^6+2^{2*3}$

$2^6+2^6$

$2^{[6+6]}=2^{12}$

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2 years ago

Find the distance between the points S(-5, -2) and T(-3, 4)

Leviafan [203]

Answer:

6.32

Step-by-step explanation:

The x difference:

-5 - -3 = -2

The y difference:

-2 - 4 = -6

Distance:

-6² + -2² = 40

√40 ≅ 6.32

4 0

3 years ago

Which scale of measurement is being used if assigning numbers based on different professional affiliation (e.g., counselors, soc

hammer [34]

Answer: The answer is Nominal scale

Step-by-step explanation:

Scale of Measurement refer to ways in which variables/numbers/information are categorized

Nominal Scale is a measurement scale, in which numbers serve as “tags”, to identify or classify an object. it is usually use for non-quantitative variables. Some examples of variables that use nominal scales are language spoken, sex, the football club you support, profession etc

8 0

4 years ago

6÷0.9 help plzzzzzzzzzzzzzzzzzzz

Rus_ich [418]

6 / .9 *10/10

60/9

9 goes into 60 6 times with 6 left over

6 6/9

6 2/3

8 0

4 years ago

Read 2 more answers

Could someone please help me:) I am stick and I am not sure what to do

Delicious77 [7]

Answer:

Part 5.1.1:

$\displaystyle \cos 2A = \frac{7}{8}$

Part 5.1.2:

$\displaystyle \cos A = \frac{\sqrt{15}}{4}$

Step-by-step explanation:

We are given that:

$\displaystyle \sin 2A = \frac{\sqrt{15}}{8}$

Part 5.1.1

Recall that:

$\displaystyle \sin^2 \theta + \cos^2 \theta = 1$

Let θ = 2A. Hence:

$\displaystyle \sin ^2 2A + \cos ^2 2A = 1$

Square the original equation:

$\displaystyle \sin^2 2A = \frac{15}{64}$

Hence:

$\displaystyle \left(\frac{15}{64}\right) + \cos ^2 2A = 1$

Subtract:

$\displaystyle \cos ^2 2A = \frac{49}{64}$

Take the square root of both sides:

$\displaystyle \cos 2A = \pm\sqrt{\frac{49}{64}}$

Since 0° ≤ 2A ≤ 90°, cos(2A) must be positive. Hence:

$\displaystyle \cos 2A = \frac{7}{8}$

Part 5.1.2

Recall that:

$\displaystyle \begin{aligned} \cos 2\theta &= \cos^2 \theta - \sin^2 \theta \\ &= 1- 2\sin^2\theta \\ &= 2\cos^2\theta - 1\end{aligned}$

We can use the third form. Substitute:

$\displaystyle \left(\frac{7}{8}\right) = 2\cos^2 A - 1$

Solve for cosine:

$\displaystyle \begin{aligned} \frac{15}{8} &= 2\cos^2 A\\ \\ \cos^2 A &= \frac{15}{16} \\ \\ \cos A& = \pm\sqrt{\frac{15}{16}} \\ \\ \Rightarrow \cos A &= \frac{\sqrt{15}}{4}\end{aligned}$

In conclusion:

$\displaystyle \cos A = \frac{\sqrt{15}}{4}$

(Note that since 0° ≤ 2A ≤ 90°, 0° ≤ A ≤ 45°. Hence, cos(A) must be positive.)

4 0

3 years ago