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3 years ago

Select the two binomials that are factors of this trinomial.

Mathematics

2 answers:

brilliants [131]3 years ago

8 0

Answer:

(x-5) (x+4)

Step-by-step explanation:

x^2 - X-20

Factor

What two numbers multiply to -20 and add to -1

-5*4 = -20

-5+4 = -1

(x-5) (x+4)

marysya [2.9K]3 years ago

5 0

Hey there! :)

Answer:

A. x - 5

B. x + 4

Step-by-step explanation:

Starting with:

x² - x - 20

Find two numbers that add up to -1 and multiply to form -20. We get:

-5, and 4. Use these numbers when writing this equation in factored form:

(x - 5) (x + 4) is the trinomial in factored form. The two binomials that are factors are:

A. x - 5

B. x + 4.

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Convert the following numbers to engineering notation. Where applicable, solve and show answer in engineering notation. (8.2 × 1

snow_tiger [21]

Engineering notation of the number (8.2 × 103) × (5.0 × 104) is

4.39192 × 10⁵

4.4 ₓ 10⁵.

<h3>What is engineering notation ?</h3>

Engineering notation is same as scientific notation.

According to the given question

Converting (8.2 × 103) × (5.0 × 104) to engineering notation can be done using a base and raising it to the power of 10.

Base can be greater than or equal to 1 and less than 10.

Suppose base is a

∴ 1≤a<10 and the number in engineering notation will be of the form a×10ⁿ

Given (8.2 × 103) × (5.0 × 104) which is

= 844.6 × 520

= 439192

=4.39192 × 10⁵

= 4.4 ₓ 10⁵.

Learn more about scientific notation here :

brainly.com/question/18073768

#SPJ1

6 0

2 years ago

Condense the following logarithm: 5log_4(a) - 6log_4(b)

grin007 [14]

Hi there! We are given the expression:

$\large \boxed{5 log_{4}(a) - 6 log_{4}(b) }$

To condense or simplify the following logarithm. You have to remember these properties:

Properties - Logarithm

$\large{ log_{b}(a)^{n} = n log_{b}(a) } \\ \large{ log_{b}(a) - log_{b}(c) = log_{b}( \frac{a}{c} ) }$

These two properties are what we need for our problem. Therefore,

$\large{ log_{4}(a)^{5} - log_{4}(b)^{6} }$

We use the log_b(a)^n = nlog_b(a) property to convert in the form above. Next, we use the second property.

$\large{ log_{4}( \frac{ {a}^{5} }{ {b}^{6} } ) }$

Answer

log base 4 of (a^5/b^6) is our simplifed form.

Any questions can be asked through comment as I may reply soon. Thanks for using Brainly! Have a good day and happy learning! :)

6 0

3 years ago

-2 - 1 + 4 I need the help please

vladimir1956 [14]

Answer:

it's 1

Step-by-step explanation:

hope this helps 1

5 0

2 years ago

Read 2 more answers

Compound interest of $1000 is invested at 10% compounded continuously, the future value s at any time t in years is given by s=1

crimeas [40]

Answer: 6.93 years

Step-by-step explanation:

Given

Rate of interest is $r=10\%$

Future value is given by $s=1000e^{0.1t}$

For the investment to double itself, i.e. $s=2000$

$\Rightarrow 2000=1000e^{0.1t}\\\Rightarrow 2=e^{0.1t}\\\\\text{Taking log both sides}\\\\\Rightarrow \ln 2=0.1t\\\\\Rightarrow t=\dfrac{\ln 2}{0.1}\\\\\Rightarrow t=6.93\ \text{years}$

It takes around 6.93 years to double the investment.

8 0

3 years ago

Find the slope of the line passing through the point (-3, 6) and the origin.<br> M=

Nuetrik [128]

You know b=0 because it is passing through the orgin (0,0) and b is the y intercept. You input (-3,6) as (x,y)

7 0

3 years ago