Which blood type was donated by the largest percent of people?

Pls help plsssssssssssssssssssssss

iren [92.7K]

Answer:

It would be 14 because since each book is 3.5cm thick times that by 4 and get 14.

8 0

3 years ago

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Use the digits 1,2,3 and 4 once each to get the largest answer possible

sukhopar [10]

Answer:

4,321

Step-by-step explanation:

This is the answer because:

1) We know that if the number has to be big therefore, we have to put 4 in the thousands place because 4 is bigger than 3, 2, and 1

2) Next, 3 is the other biggest number, for that reason 3 is in the hundreds place

3) Then, 2 is the other bigger number; therefore, the tens place is 2

4) Finally, the last number remaining is 1, which is in the ones place

Therefore, the answer is 4,321

Hope this helps!

8 0

3 years ago

Mattie uses the discriminant to determine the number of zeros the quadratic equation 0 = 3x2 – 7x + 4 has. Which best describes

Eduardwww [97]

For $ax^2+bx+c=0$ the discriminant is $b^2-4ac$

there are 3 basic cases of what happens for different discriminants
1. if the discriminant is less than 0, then there are no real zeroes
2. if the discriminant is 0, then it has 1 zero
3. if the discriminant is greater than 0, it has 2 zeroes

so given
$0=3x^2-7x+4$
a=3,b=-7,c=4
thus the discriminant is $(-7)^2-4(3)(4)=49-48=1$
the discriminant is 1. 1 is positive, thus the equation has 2 zeroes because the discriminant is greater than 0

the answer is the equation has two zeroes because the discriminant is greater than 0

8 0

3 years ago

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Find the product of the following polynomials:

qaws [65]

Answer:

A) -84x^3 - 8x

B) -91x^4 + 143x^2 - 65x

C) 12b^2 - 7b - 10.

D) 16x^2 - 72x + 81

Step-by-step explanation:

A) -4x(21x^2-3x+2)

B) -13x(7x^3-11x+5)

C) (3b+2)(4b-5)

D) (4x-9)^2

In A) -4x(21x^2-3x+2) we are multiplying the binomial (21x^2-3x+2) by the monomial -4x; there are two multiplications involved:

-4x(21x^2) = -84x^3

and

-4x(-3x+2) = +12x^2 - 8x.

Hence A) -4x(21x^2-3x+2) = -84x^3 - 8x

B) The work done to find the product in B) is similar: Multiply each term in 7x^3-11x+5 by -13x:

The end result is -91x^4 + 143x^2 - 65x

C) Here we are multiplying together two binomials; we use the FOIL method: Multiply together the First terms, then the Outer terms, then the Inner terms, and finally the Last terms. This results in:

(3b+2)(4b-5) = 12b^2 -15b + 8b -10, or, after simplification, 12b^2 - 7b - 10.

In D) we are squaring a binomial. The formula for this is:

(a - b)^2 = a^2 - 2ab + b^2. Here,

(4x - 9)^2 = 16x^2 - 2(36x) + 81, or 16x^2 - 72x + 81

5 0

3 years ago

You buy butter for $3 a pound one portion of onion compote requires 1.6 oz of butter how much does the butter for one portion co

Lunna [17]

Answer:

.30

Step-by-step explanation:

Purchase Cost = Cost per Portion x Portion Per Purchase

16 oz=1lb

3 0

4 years ago