3 years ago

Solve the following:

Mathematics

2 answers:

shtirl [24]3 years ago

8 0

Answer:

43/40x^3-5x^5+2

Step-by-step explanation:

Svetlanka [38]3 years ago

7 0

= (64 / -8)/(36 - 30 + 2) = -8 / 8 = -1

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Write a quadratic equation in standard form that has 5 3 and 7 3 as its roots. A) 9x2 − 36x + 35 = 0 B) 9x2 + 36x − 35 = 0 C) 9x

Serggg [28]

Answer:

Option A)

$9x^2 - 36x + 35 = 0$

Step-by-step explanation:

We are given the following in the question:

Roots of quadratic equation are:

$\alpha = \dfrac{5}{3}, \beta = \dfrac{7}{3}$

The sum of the roots and the product of the roots can be calculated as:

$\alpha + \beta = \dfrac{5+7}{3} = 4\\\\\alpha\beta = \dfrac{5}{3}\times \dfrac{7}{3} = \dfrac{5}{9}$

Standard form of quadratic equation:

$x^2-(\alpha + \beta)x+\alpha\beta = 0$

Putting values, we get,

$x^2 - 4x + \dfrac{35}{9} = 0\\\\9x^2 - 36x + 35 = 0$

is the required quadratic equation.

Thus, the correct answer is

Option A)

$9x^2 - 36x + 35 = 0$

5 0

3 years ago

The length of a rectangle is eight more than triple the width. If the perimeter is 168 inches, find the dimensions.

defon

Answer:

P= 2(3W + 7) + 2(W) = 110.

P= 6W + 14 + 2W = 110.

= 8W + 14 = 110.

= 8W = 110 - 14 = 96

W = 96/8 = 12- inches.

Now solve for (L) by L = 3W + 7 = 3(12) + 7 = 36 + 7 = 43- inches

7=43 inches if this help.can u mark me brainliest

6 0

2 years ago

Seven subtracted from n is 18

Vikentia [17]

Answer:

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Sue buys 8.5 pounds of chicken to make tacos. She uses 0.3 pound of chicken for each taco. How many tacos can Sue make?

gizmo_the_mogwai [7]

Divide 8.5 by .3 and get 28.3333. She can't make tacos with the extra .3 pounds so the answer is 28 tacos

4 0

3 years ago

Find the last one please!!!Will mark brainlyist if right

JulsSmile [24]

Answer:

129.6º

Step-by-step explanation:

7 + 10 + 2 + 6 + 11 = 36%

QAV = 36% * 360º = 129.6º

3 0

3 years ago