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3 years ago

What is the value of x? A.128o B.138o C.118o

Mathematics

1 answer:

Bad White [126]3 years ago

6 0

Answer:

124°

Step-by-step explanation:

This is an Isosceles triangle so the measure of the neighbouring corner to x is

(180 - 76) ÷ 2 = 56

Since x + 56 would be 180 the value of x is 180 - 56 = 124

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Simplify the following rational expression without using a calculator: (12².6³.5²)/(18².15).

prohojiy [21]

Answer:

160

Step-by-step explanation:

$\dfrac{12^2\cdot 6^3\cdot 5^2}{18^2\cdot 15}=\dfrac{(2^2\cdot 3)^2\cdot (2\cdot 3)^3\cdot 5^2}{(2\cdot 3^2)^2\cdot (3\cdot 5)}\\\\=\dfrac{(2^4)(3^2)(2^3)(3^3)(5^2)}{(2^2)(3^4)(3)(5)}=(2^{4+3-2})(3^{2+3-4-1})(5^{2-1})=32\cdot 5\\\\=\bf{160}$

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3 years ago

Use Venn diagram of prime factors to show the heck and Lcm of 15 and 22

NISA [10]

Answer:

330

Step-by-step explanation:

I don't know what it wants you to use, you can see intuitively that you must multiply the 22 by a multiple of 5
22 x 5 = 110
110 / 15 = 7.3
22 x 10 = 220
220 / 15 = 14.6
22 x 15 = 330
330 / 15 = 22

3 0

2 years ago

Use substitution to solve the system of equations :

mote1985 [20]

Answer:

x=1

y=-4

Step-by-step explanation:

4x+y=0 -> y= -4x

2(-4x)+x=-7

-8x+ x=-7

-7x=-7

x=-7/-7=1

y=-4 . 1 = -4

3 0

3 years ago

Write a number that is less than - 10

ra1l [238]

Any number from -10 to -∞ would be correct. One example is -79.

8 0

3 years ago

2(x+5) + 2 = 3 ( 2x - 4)

White raven [17]

2x+10+2=6x-12
4x = 24
x= 6

6 0

3 years ago

Read 2 more answers