All categories

2 years ago

Need step by step explanation for this, Thanks

Mathematics

1 answer:

Viktor [21]2 years ago

4 0

Answer:

d = 19/5 or, 4.75 in decimal form

Step-by-step explanation:

You might be interested in

Which expression is equivalent to 4y – 1

uysha [10]

Y-.25 is your answer.

4 0

3 years ago

Solve this system of equations:<br><br> 5x + y = 7<br> 20x + 2 = y

xz_007 [3.2K]

Answer:

x = 1/5, y = 6

Step-by-step explanation:

5x + y = 7

y = 7 - 5x

Set equations equal to each other to eliminate y

7 - 5x = 20x + 2

7 = 25x + 2

5 = 25x

x = 1/5

y = 7 - 5(1/5)

y = 7 - 1

y = 6

7 0

3 years ago

What is 2/3x=10 one step equations

stellarik [79]

Multiply both sides by three to get 2x=30
Then divide both sides by 2 to get x=15

7 0

3 years ago

A square with an area of 9cm2. If each side has its length doubled, what is the new area?

cestrela7 [59]

Answer:

Step-by-step explanation:

4 0

3 years ago

Use the Rational Zeros Theorem to write a list of all possible rational zeros of the function.

marishachu [46]

Answer:

$\text{Possible rational zeros}=\pm1,\pm\frac{1}{2},\pm2,\pm3,\pm\frac{3}{2},\pm6,\pm9,\pm\frac{9}{2},\pm18$

Step-by-step explanation:

We have been given the function

$f(x)=-2x^2+4x^3+3x^2+18$

From the rational zeros theorem, we have

$\text{Possible rational zeros}=\pm\frac{\text{Factors of constant term}}{\text{Factors of leading coefficient}}$

From the given function,

Leading coefficient = 2

Factors of 2 are 1,2

Constant term = 18

Factors of constant term = 1, 2, 3, 6, 9, 18

Hence, we have

$\text{Possible rational zeros}=\pm\frac{1,2,3,6,9,18}{1,2}\\\\\text{Possible rational zeros}=\pm1,\pm\frac{1}{2},\pm2,\pm3,\pm\frac{3}{2},\pm6,\pm9,\pm\frac{9}{2},\pm18$

6 0

3 years ago