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3 years ago

The circle has a diameter of 26 what is its area

Mathematics

1 answer:

malfutka [58]3 years ago

6 0

Answer:530.9 if taking calculator value of pie otherwise 530.6

Step-by-step explanation:

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Here's a linear equation. rewrite it in slope-intercept form -2-3y+15=0

irakobra [83]

-3y-2+15=0 would be the answer

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4 years ago

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Find the roots of the polynomial equation.

True [87]

Answer:

3 ± i5

Step-by-step explanation:

Here we're given four sets of possible roots of the given polynomial. Each set consists of two complex quantities and 1 real quantity.

First, we determine whether +4 is a root, then whether -4 is a root. Let's use synthetic division to do that:

-----------------------

4 / 1 -2 10 136

4 8 72

---------------------------

1 2 18 208 Since the remainder is not zero, 4 is not a root.

Eliminate the first two possible answer choices, and assume that -4 is a root.

Let's check this out to be certain:

-----------------------

-4 / 1 -2 10 136

-4 24 -136

---------------------------

1 -6 34 0

Since the rem. is zero, -4 is a root, and the coefficients of the 2nd-degree quotient are 1, -6 and 34.

In other words, a = 1, b = -6 and c = 34.

Let's apply the quadratic rule to find the roots:

6 ± √(36 - 4[1][34] ) 6 ± √ (-100)

x = ------------------------------ = ----------------------- = 3 ± i5

2 2

So the correct answer is the last one of the four given possible answers:

3 ± i5

3 0

3 years ago

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Find the measure of the missing angles

vekshin1

Answer:

H: 119 degrees.

G: 61 degrees.

M: 54 degrees.

K: 126 degrees.

Step-by-step explanation:

6 0

2 years ago

Please explain how - calc ab - see attached photo

baherus [9]

Answer:

Step-by-step explanation:

Set up to different integrals that match the endpoints

so in our case it would look like

$\int\limits^0_{-2} {x} \, dx +\int\limits^1_0 {x+1} \, dx$

now it's just a matter of computing it

$\int\limits^0_{-2} {x} \, dx =x^2\\0^2-(-2)^2=4\\\int\limits^1_0 {x+1} \, dx =\frac{x^2}{2}+x\\\frac{1}{2}+1-0=\frac{3}{2}\\\frac{3}{2}+4=\frac{11}{2}$

4 0

3 years ago

What is the mass of a baseball that has a kinetic energy of 100 J and is traveling at 5 m/s?

Andrei [34K]

The formula of the kinetic energy is:
K.E = $\frac{1}{2}$ mv²

The given are
K.E = 100 J
v = 5 m/s

Plug them in:

100 = $\frac{1}{2}$ m × (5)²
100 = $\frac{1}{2}$ m × 25
100 = 12.5m
Divide by 12.5 on either sides to isolate m

$\frac{100}{12.5}$ = $\frac{12.5m}{12.5}$
12.5 and 12.5 cancels out
8 kg = m
The mass of the baseball that has a kinetic energy of 100 J and speed of 5 m/s is 8 kg

4 0

3 years ago

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