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4 years ago

(-2/3) to 2nd Power - 3/4 (2 1/3) Will give out 50+25 pts and Brainliest Answer

Mathematics

2 answers:

natta225 [31]4 years ago

8 0

Answer:

-1.30555555556?

Step-by-step explanation:

(-2/3)^2-3/4(7/3)=-1.30555555556

trasher [3.6K]4 years ago

5 0

I think the answer is -47/36

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Vector z = <5, -3> is subtracted from vector w = <-6, -5>. The magnitude of the resulting vector is approximately __

Digiron [165]

Answer:

$11.18\ \text{units}$

$10.3^{\circ}$

Step-by-step explanation:

$w=$

$z=$

z is subtracted from w so

$w-z=\\\Rightarrow w-z=$

Magnitude is given by

$\sqrt{(-11)^2+(-2)^2}=5\sqrt{5}=11.18$

The magnitude of the resulting vector is approximately $11.18\ \text{units}$ .

The angle is

$\theta=\tan^{-1}\dfrac{-2}{-11}\\\Rightarrow \theta=10.3^{\circ}$

The direction is approximately $10.3^{\circ}$

8 0

3 years ago

I really need help please!!

Luda [366]

Answer: B

To find the frequency of students favorite sport you will use the equation

Number of students for each sport/total students

Basketball: 4/25 = .16
Football: 7/25 = .28
Lacrosse: 3/25 = .12
Soccer: 8/25 = .32
Volleyball: 3/25 = .12

3 0

3 years ago

the function f(x) = 3,005(1+0.03)^x represents the amount of money in a savings account where x represents time in years. what d

Stolb23 [73]

Answer:

Option d. the initial amount of money placed in the savings account

Step-by-step explanation:

we have

$f(x)=3,005(1+0.03)^{x}$

This is a exponential function of the form

$f(x)=a(1+r)^{x}$

where

a is the initial value

r is the growth rate

(1+r) is the base

x is the number of years

f(x) is the amount of money in a savings account

In this problem we have

a=$3,005

r=0.03=3%

(1+r)=1.03

therefore

3,005 represent the initial value ( the amount of money for the value of x equal to zero)

6 0

3 years ago

Read 2 more answers

True or false please help thank you

Leni [432]

Answer:

True.

See below for explanation.

Step-by-step explanation:

Reason 1

When we solve the equation by combining both equations in one, the variable will become 0.

Proof

$\begin{cases} y = 4x - 3 \\ y = 4x - 5 \end{cases} \\ 4x - 3 = 4x - 5$

Combine like terms.

$4x - 4x = - 5 + 3 \\ 0 = - 2$

See that the equation is false no matter which numbers you substitute in x-term.

Reason 2

Both graphs are parallel and don't have any intercepts to each others.

See the attachment below for graphs.

Since both graphs do not really have intercepts, that means they do not provide any solutions. Hence, no solutions.

5 0

3 years ago

A scientist is studying the population growth rates of two different species of rats in the same laboratory conditions. The popu

Korolek [52]

Since, population of species A is represented by : $P=2^{x} +19$

Let us find the population of species A, at the end of week 1:

i.e., x = 1

i.e., $P(1)=2^{1} +19$

i.e., $P(1)=2 +19$

i.e., $P(1)=21$

Also, since population of species B is represented by : $P=3^{x} +18$

Let us find the population of species B, at the end of week 1:

i.e., x = 1

i.e., $P(1)=3^{1} +18$

i.e., $P(1)=3 +18$

i.e., $P(1)=21$

Thus, at the end of 1 week, species A and species B will have the same population.

Hence, option D is correct.

4 0

3 years ago