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3 years ago

What is the domain of

Mathematics

1 answer:

ki77a [65]3 years ago

7 0

No exponent can make the base number negative, so the domain is x > 0

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I am stuck on 14 and 15 as they do not have a straight line going through to help me, anybody know how to ?? thanks !

posledela

Answer:

14. x=21, GK=167°, HJ=98°, HGJ=262°, GKJ=201°

15. x=9, AD=108°, BC=23°, DC=139°, DBC=221°

Step-by-step explanation:

In each case, the sum of the arcs around the circle is 360°.

14. 61 +(5x -7) +34 +(9x -22) = 360

14x = 294 . . . . . subtract 66, simplify

x = 21 . . . . . . . . divide by 14

(5x -7) = 98

(9x -22) = 167

x = 21
arc GK = 167°
arc HJ = 98°
arc HGJ = 360° -98° = 262°
arc GKJ = 167° +34° = 201°

15. 90 +(2x +5) +(17x -14) +(12x) = 360

31x = 279 . . . . subtract 81, simplify

x = 9 . . . . . . . . divide by 31

(2x+5) = 23

(17x -14) = 139

(12x) = 108

x = 9
arc AD = 108°
arc BC = 23°
arc DC = 139°
arc DBC = 360° -139° = 221°

3 0

3 years ago

Write the fraction 27/63 in simplest form ?

BARSIC [14]

Answer:

3/7

Step-by-step explanation:

both of them divisible by 9

5 0

3 years ago

Read 2 more answers

1/10 and 8/100 which is the correct sum

Ivanshal [37]

To add 1/10 and 8/100, they must have the same denominator.

To do this, multiply 1/10 by 10/10 (which equals one, so it doesn't change the value of the fraction).

Now you have 10/100 and 8/100. To add them, simply add the numerators and keep the denominators the same.

This results in 18/100, which can be simplified to 9/50.

6 0

3 years ago

Whats the distance between (-8,-7) (8,-4)

balandron [24]

To find the distance between points, use the distance formula.

Distance formula: $\sqrt{ (x_{2} - x_{1})^{2} + ( y_{2} - y_{1})^{2} }$

Plug in your values for $x_{2}, x_{1}, y_{2}, y_{1}$ using (-8, -7) and (8, -4) and solve.

$\sqrt{(8 - (-8))^{2}+(-4 - (-7))^{2}}$
$\sqrt{(8+8)^{2}+(-4+7)^{2}}$
$\sqrt{(16)^{2}+(3)^{2}}$
$\sqrt{256+9}$
$\sqrt{265}$ ≈ $16.28$

Answer:
Approximately 16.28 units.

8 0

3 years ago

New session is here

Genrish500 [490]

hey

$^{9807}$

3 0

1 year ago