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3 years ago

Are the statements true or false? Select a true or false statement.

Mathematics

2 answers:

spayn [35]3 years ago

6 0

Answer:

true and true

Step-by-step explanation:

i took the test

Brut [27]3 years ago

3 0

Answer:

It is false and true

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djverab [1.8K]

Answer:

first you would find the sum of all the people who DONT have grey hair (15)

5:15 or if simplified it would be 1:3 pls mark brainliest if correct :D

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2 years ago

the width of a rectangle is 6 units less than the the length. The area of a rectangle is 7 units. What is the length of the rect

diamong [38]

Answer:

Length: 7 units

Width: 1 unit

Step-by-step explanation:

8 0

3 years ago

The sum of consecutive integers 1,2,3,...,n is given by the formula 1/2n(n+1). How many consecutive integers, starting with 1, m

vodomira [7]

$\dfrac{1}{2}n(n+1)=1081\qquad|\text{multiply both sides by 2}\\\\n(n+1)=2162\qquad|\text{use distributive property}\\\\(n)(n)+(n)(1)=2162\qquad|\text{subtract 2162 from both sides}\\\\n^2+n-2162=0\\\\n^2+47n-46n-(46)(47)=0\\\\n(n+47)-46(n+47)=0\\\\(n+47)(n-46)=0\iff n+47=0\ \vee\ n-46=0\\\\n=-47\notin\mathbb{N}\ \vee\ n=46\\\\Answer:\ 46\ integers.$

7 0

3 years ago

Give a third degree polynomial that has zeros of 13, 5i, and −5i, and has a value of −680 when x=3. Write the polynomial in stan

Vikki [24]

Answer:

$\dfrac{17x^3-221x^2+425x-5525}{9}\\$

Step-by-step explanation:

hello

we need to find something like, a being real

$a(x-13)(x-5i)(x+5i)$

with a so that

$a(3-13)(3-5i)(3+5i)=-680\\\\a(-10)(3^2-(5i)^2)= -10(9+25)a=-360a=-680\\ a = \dfrac{680}{360}=\dfrac{17*40}{9*40}=\dfrac{17}{9}$

so the third degree polynomial that we are looking for is

$\dfrac{17}{9}(x-13)(x-5i)(x+5i)\\=\dfrac{17}{9}(x-13)(x^2+25)\\\\=\dfrac{17}{9}(x^3+25x-13x^2-13*25)\\\\\\=\dfrac{17}{9}(x^3-13x^2+25x-325)\\\\\\\\=\dfrac{17}{9}x^3-\dfrac{17*13}{9}x^2+\dfrac{17*25}{9}x-\dfrac{17*325}{9}\\=\dfrac{17}{9}x^3-\dfrac{221}{9}x^2+\dfrac{425}{9}x-\dfrac{5525}{9}\\$

hope this helps

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3 years ago

Which factor is important to consider when building a saving fund for planned long term needs ?

inna [77]

Answer: There are several factors to consider when building a savings fund for planned long term needs. First of all, we have to consider the amount of principal money we can invest in. It may be a one-time investment or a systematic investment plan.

Step-by-step explanation: Indeed, this is from Brainly so this is NOT my answer. Just gave it to you to help you out. Good lucky, my friend.

5 0

3 years ago