All categories

3 years ago

HELPPP a GIRL OUT PLEASEEEE!

Mathematics

1 answer:

noname [10]3 years ago

5 0

Answer:

So basically the equation is not be considered 2n+15=40 Apart from three equations this equation cannot be considered in this question Hope I helped!!!

You might be interested in

| 19 − 20x | − |20 − 19x |− |x − 10|, if x > 100

denpristay [2]

Answer:

Step-by-step explanation:

since x>100, then 19-20x and 20-19x would obviously be negative and x-10 would be positive.

Therefore we have (20x-19)-(19x-20)-(x-10) = 20x-19-19x+20-x+10 = 11

4 0

3 years ago

(2 points) Consider the linear system y⃗ ′=[−35−23]y⃗ . Find the eigenvalues and eigenvectors for the coefficient matrix. ????1=

oksian1 [2.3K]

Answer:

Please see the attached file for the complete answer.

Step-by-step explanation:

Download pdf

6 0

3 years ago

The area of a triangle is 528cm2. The length of its base is 33cm. Calculate the perpendicular height of the triangle

IRISSAK [1]

A = bh/2
A = 33 x h / 2
528 = 33h / 2
33h = 1056
h = 32cm

4 0

2 years ago

Read 2 more answers

An owner of a key rings manufacturing company found that the profit earned (in thousands of dollars) per day by selling n number

vovikov84 [41]

Answer:

The number of key rings sold on a particular day when the total profit is $5,000 is 4,000 rings.

Step-by-step explanation:

The question is incomplete.

An owner of a key rings manufacturing company found that the profit earned (in thousands of dollars) per day by selling n number of key rings is given by

$P=n^2-2n-3$

where n is the number of key rings in thousands.

Find the number of key rings sold on a particular day when the total profit is $5,000.

We have the profit defined by a quadratic function.

We have to calculate n, for which the profit is $5,000.

$P=n^2-2n-3=5\\\\n^2-2n-8=0$

We have to calculate the roots of the polynomial we use the quadratic equation:

$n=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\n= \frac{-2\pm\sqrt{4-4*1*(-8)}}{2}= \frac{-2\pm\sqrt{4-32}}{2} = \frac{-2\pm\sqrt{36}}{2} =\frac{-2\pm6}{2} \\\\n_1=(-2-6)/2=-8/2=-4\\\\n_2=(-2+6)/2=4/2=2$

n1 is not valid, as the amount of rings sold can not be negative.

Then, the solution is n=4 or 4,000 rings sold.

7 0

3 years ago

HELP I WILL MAEK BEAINLIST PLEASE

wolverine [178]

Answer:

260,548668 or 260.55 round to the nearest hundreds

Step-by-step explanation:

Area of the trapezoid:

[(major base + minor base)x height]/2

[(22 + 12) x 12]/2 = 204 cm^2

radius = diameter / 2 = 12 / 2 = 6 cm

Area of a semicircle

(radius^2 x pi)/2 = (6^2 x pi)/2 = 56.548668 cm^2

total area = 204 + 56,548668 = 260,548668 cm^2

6 0

3 years ago