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2 years ago

14

Is -7+9 equal to -9+7

2 answers:

sdas [7]2 years ago

8 0

The two expressions are not equal

dezoksy [38]2 years ago

4 0

Answer:

No

Step-by-step explanation:

-7+9 would be 2

while -9+7 would be -2

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The length of a rectangle is 22 centimeters and the width is

nataly862011 [7]

Answer:

78cm

Step-by-step explanation:

L₁/W₁ = L₂/W₂

22/4 = L₂/6

5.5*6=L₂

L₂=33cm

Perimeter of rectangle = 2L+2W

=2(33)+2(6)

=66+12

=78cm

7 0

2 years ago

A little boy mass 10kg is placed at a height of 2cm above the ground,what is the potential energy of the boy with reference to t

marin [14]

Potential gravitational energy:

mgh

10kg • 10m/s^2 • 0.02 =

2 Joules

3 0

2 years ago

A machine requires three hours to make a unit of Product A and five hours to

svlad2 [7]

Let A unit be a; B unit be b

a + b = 95

b = 95 - a

3a + 5b = 395

3a + 5(95 -a) = 395

3a + 475 - 5a = 395

-2a = -80

a = 40

a + b = 95

40 + b = 95

b = 55

Therefore, a = 40; b = 55.

Hope this helps

8 0

2 years ago

My question is 4 * 7/5th's

miskamm [114]

Answer:

5 and 3/5ths is the answer to your question

4 0

2 years ago

van someone please help me with this i dont need an explaination i just need a. b. c. or d. please and thank you

Talja [164]

Answer:

option C

$f(x)=-\sqrt{x+3}+8$

Step-by-step explanation:

we have

$f(x)=-2\sqrt{x-3}+8$

using a graphing tool

see the attached figure N $1$

The range is the interval--------> (-∞,8]

$y\leq 8$

case A) $f(x)=\sqrt{x-3}-8$

using a graphing tool

The range is the interval--------> [-8,∞)

$y\geq -8$

case B) $f(x)=\sqrt{x-3}+8$

using a graphing tool

The range is the interval--------> [8,∞)

$y\geq 8$

case C) $f(x)=-\sqrt{x+3}+8$

using a graphing tool

The range is the interval--------> (-∞,8]

$y\leq 8$

case D) $f(x)=-\sqrt{x-3}-8$

using a graphing tool

The range is the interval--------> (-∞,-8]

$y\leq -8$

5 0

3 years ago