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3 years ago

Which key on the scientific calculator will you need to simplify exponential expressions

Mathematics

2 answers:

mariarad [96]3 years ago

4 0

Answer:

^ key raising the power to a number or variable.

Step-by-step explanation:

We have to tell the key on the scientific calculator needed to simplify exponential expressions.

Exponent is meant as raising the power.

In scientific calculator the key is used which is used to raise the power which is ^.

^ key raising the power to a number or variable.

lapo4ka [179]3 years ago

3 0

It is called a "carrot" in most teachers math vocabulary, Type in your base, then click the ^ button, then type in your exponent.

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Bryant brenda and jack ate lunch together. Bryant ate 1/3 of a pizza . brenda ate 1/2 of what bryant ate Jack ate 1/2 a pizza mo

sergejj [24]

Answer:

2/3 for Jack

Step-by-step explanation: You know Bryant eat 1/3 of a pizza, so you got 2/3 for Jack because Brenda is 1/3 since thats half the amount Jack had. :)

4 0

3 years ago

Read 2 more answers

claire mowed 5 lawns last week. show mowed each lawn in 7/12 hour. she mowed the same lawns this week in 5/12 hour each using he

Zinaida [17]

Answer:

$\dfrac{5}{6}$ hour or 50 minutes

Step-by-step explanation:

Last week:

Claire mowed 5 lawns

She mowed each lawn in $\frac{7}{12}$ hour.

She spent

$5\cdot \dfrac{7}{12}=\dfrac{35}{12}=2\dfrac{11}{12}$

hours to mow 5 lawns.

This week:

Claire mowed 5 lawns

She mowed each lawn in $\frac{5}{12}$ hour.

She spent

$5\cdot \dfrac{5}{12}=\dfrac{25}{12}=2\dfrac{1}{12}$

hours to mow 5 lawns.

Difference:

$2\dfrac{11}{12}-2\dfrac{1}{12}=\dfrac{11}{12}-\dfrac{1}{12}=\dfrac{10}{12}=\dfrac{5}{6}$

hour or 50 minutes.

5 0

3 years ago

The perimeter of a rectangular garden is 108 meters. The length is 6 meters longer than twice the width, find the dimensions of

Natalka [10]

Answer:

width=16

length=38

Step-by-step explanation:

perimeter of a rectangle=2(length+width)

108/2=length+ width

54=length+ width

54-width=length

also:

length-6= 2×width

length=2width +6

now you can put the length we found, in the second equation:

54-width=2width+6

54-6=2width+width

48=3width

width=16

now do the exact same thing with one of the equations we created in the beginning.

either this:

54-width=length

or this:

length=2width +6

as the 1st one is simpler, I use that:

54-(16)=length

length=38

8 0

3 years ago

Which of the following is equivalent to (p3)(2p2 - 4p)(3p2 - 1)?

aleksandrvk [35]

(p³)(2p² - 4p)(3p² - 1) = (p³)(2p²*3p² - 4p*3p² - 1*2p² - 4p*(-1)) =
= (p³)(6p⁴ - 12p³ - 2p² + 4p)

Answer: A)

7 0

3 years ago

Read 2 more answers

Suppose the roots of the polynomial $x^2 - mx + n$ are positive prime integers (not necessarily distinct). Given that $m < 20

Vsevolod [243]

Answer:

18 values for n are possible.

Step-by-step explanation:

Given the quadratic polynomial:

$x^2 - mx + n$

such that:

Roots are positive prime integers and

$m < 20$

To find:

How many possible values of $n$ are there ?

Solution:

First of all, let us have a look at the sum and product of a quadratic equation.

If the quadratic equation is:

$Ax^{2} +Bx+C$

and the roots are: $\alpha$ and $\beta$

Then sum of roots, $\alpha+\beta = -\frac{B}{A}$

Product of roots, $\alpha \beta = \frac{C}{A}$

Comparing the given equation with standard equation, we get:

A = 1, B = -m and C = n

Sum of roots, $\alpha+\beta = -\frac{-m}{1} = m$

Product of roots, $\alpha \beta = \frac{n}{1} = n$

We are given that $m$

$\alpha$ and $\beta$ are positive prime integers such that their sum is less than 20.

Let us have a look at some of the positive prime integers:

2, 3, 5, 7, 11, 13, 17, 23, 29, .....

Now, we have to choose two such prime integers from above list such that their sum is less than 20 and the roots can be repetitive as well.

So, possible combinations and possible value of $n (= \alpha \times \beta)$ are:

$1.\ 2, 2\Rightarrow n = 2\times 2 = 4\\2.\ 2, 3 \Rightarrow n = 6\\3.\ 2, 5 \Rightarrow n = 10\\4.\ 2, 7\Rightarrow n = 14\\5.\ 2, 11 \Rightarrow n = 22\\6.\ 2, 13 \Rightarrow n = 26\\7.\ 2, 17 \Rightarrow n = 34\\8.\ 3, 3\Rightarrow n = 3\times 3 = 9\\9.\ 3, 5 \Rightarrow n = 15\\10.\ 3, 7 \Rightarrow n = 21\\$

$11.\ 3, 11\Rightarrow n = 33\\12.\ 3, 13 \Rightarrow n = 39\\13.\ 5, 5 \Rightarrow n = 25\\14.\ 5, 7 \Rightarrow n = 35\\15.\ 5, 11 \Rightarrow n = 55\\16.\ 5, 13 \Rightarrow n = 65\\17.\ 7, 7 \Rightarrow n = 49\\18.\ 7, 11 \Rightarrow n = 77$

So,as shown above 18 values for n are possible.

3 0

3 years ago