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3 years ago

What quadratic equation has -4 and 2/3 as it’s roots

Mathematics

1 answer:

umka21 [38]3 years ago

5 0

Answer:

3x^2 + 10x - 8 = 0.

Step-by-step explanation:

In factor form it would be:

(x + 4)(3x - 2) = 0 (because x + 4 = 0 gives x = -4 and 3x - 2 = 0 gives x = 2/3);

Now change to standard form:

= 3x^2 - 2x + 12x - 8 =0

= 3x^2 + 10x - 8 = 0.

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Find the distance between the pair of points.<br>A((-3, 1). BC 7. 13)

attashe74 [19]

Answer is -3+10=7 and 13-1=12 so is 10,12

8 0

3 years ago

PLEASE HURRY!50 POINTS ANS BRAILIEST

densk [106]

Answer:

The decreasing value of car 1 can be represented by an exponential function and car 2 by a linear function

Car 1: f(x) = $18500(0.94)^{x}$

Car 2: f(x) = 18500 - 1000x

Car 1 would be $10600.40 after 9 years

Car 2 would be $9500.00 after 9 years

There is a significant difference of $1100.40 in value.

Step-by-step explanation:

$f(x) = ar^{x}\\f(0) = a = 18500\\f(x) = 18500r^{x}\\f(1) = 18500r = 17390\\r = \frac{17390}{18500} = 0.94\\f(x) = 18500(0.94)^{x}$

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4 years ago

Consider the relationship between the place values of the 4s in this number. 444.44 . Choose all answers that are correct. A. Th

Effectus [21]

A and B PLEASE check though I am still human and I make mistakes

3 0

4 years ago

Prove if a and b are integers, prove that if a is even and b is even then a+b is even

jeka57 [31]

Answer:

Let a and b integers and suppose that are even numbers. Then, exist integers k and m such that $a=2k$ and $b=2m$ .

Then,

$a+b=2k+2m=2(k+m)=2n$

Since, k and m are integers then n=k+m is an integer. Then, since a + b is of the form 2 by an integer n, then a + b is an even number.

7 0

3 years ago

The company charges $5 per sq ft, AND has a minimum charge of 3 sq ft per order (meaning if a customer orders something SMALLER

Svetach [21]

Answer:

12 inches by 12 inches = 15 dollars

48 inches by 48 inches = 80 dollars

Step-by-step explanation:

12 inches = 1 ft

so 12 inch by 12 inches is 1 ft * 1 ft

1 ft* 1 ft

1 ft^2

This is smaller than 3 ft^2 so they will get charged for 3 ft^2

3 ft^2 = 3 ft^2 * $5 / ft^2 = 15 dollars

48 inches = 48/12 = 4 ft

4ft * 4 ft = 16 ft^2

16 ft^2 = 16 ft^2 * $5 / ft^2 = 80 dollars

8 0

4 years ago