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yawa3891 [41]
3 years ago
5

What is a diagonal cross section through the widest part of a sphere

Mathematics
1 answer:
Eva8 [605]3 years ago
7 0
The diameter is the cross section of the widest part of a sphere.
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Micah was asked to add the following expressions: 3x2−x−9x2+3x+2+−2x2+2x+5x2+3x+2 First, he combined like terms in the numerator
Natalka [10]

Micah was asked to add the following expressions:

\frac{3x^2-x-9}{x^2+3x+2} + \frac{-2x^2+2x+5}{x^2+3x+2}

First, he combined like terms in the numerator and kept the common denominator

First step is correct. He added the like terms in the numerator, because the denominators are same.

3x^2 -x -9 -2x^2+2x+5 becomes x^2 +x -4

So he got , \frac{x^2+x-4}{x^2+3x+2}

In the next step, he cannot cancel out x^2 from the top and bottom . Because x-4 and 3x+2  are added with x^2

If we have x^2 is multiplied with other terms at the top and bottom , then we can cancel out x^2.

So Micah added the expression incorrectly. Final answer is not correct.

5 0
2 years ago
7x + 3y = m
attashe74 [19]

7x + 3y = m

3y = m - 7x

y = (m - 7x) / 3


4( r + 3 ) = t

r + 3 = t / 4

r = ( t - 3 )/ 4


2x + b = w

2x = w- b

x = ( w - b ) / 2


x (1 + y) = 2

x = 2 / 1 +y

4 0
3 years ago
Read 2 more answers
Find the vertex of the given quadratic function.
ki77a [65]

B

given f(x) in factored form, equate to zero for x-intercepts

(x - 8)(x - 4) = 0, hence

x = 4, x = 8 ← x- intercepts

The vertex lies on the axis of symmetry which is situated at the midpoint of the x- intercepts

x- coordinate of vertex = \frac{4+8}{2} = 6

f(6) = (6 - 8 )(6 - 4 ) = -2 × 2 = - 4 ← y-coordinate

vertex = (6, - 4 ) → B




8 0
3 years ago
The amount of money that kailyn earns varies directly with the number of hours she works. if she works for 15 hours and makes 14
Anestetic [448]

Answer:

$390

Step-by-step explanation:

The wage rate for Kailyn is ($146.25/15 hours) = $9.75/hour

40 hours would result in:

(40 hours)*($9.75/hour) = $390

5 0
2 years ago
PLEASEEEE HELP ITS URGENT!!!!
Marrrta [24]

Answer:

f(x)=1/2x-6

Step-by-step explanation:

7 0
3 years ago
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