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2 years ago

How do you think the invention of the microscope influence the cell theory?

1 answer:

3 0

The Invention of the Microscope helped the development of the cell theory because it allowed the scientists to actually discover that everything was made up of cells, and what cells do to come up with that theory.

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X - 7 = 13 - x help asap plz

bekas [8.4K]

Answer:

x = 10

Step-by-step explanation:

$x - 7 = 13 - x$

Step 1 : Collect like terms and simplify

$x + x = 13 + 7 \\ 2x = 20$

Step 2 : Divide both sides of the equation by 2

$\frac{2x}{2} = \frac{20}{2}$

Step 3 : Simplify by cross cancellation of common term : 2

$x = 10$

4 0

3 years ago

How do i do this. will give brainliest

Tomtit [17]

Try this option ↓

Step-by-step explanation:

1) according to the condition two angles are equal, then two sides are equal also, it means

2) √x+4=√(5x+4);

3) the 'x' can be calculated if to solve this equation:

$\sqrt{x} +4=\sqrt{5x+4}$ ;

$x+16+8\sqrt{x} =5x+4;$

$4x-12=8\sqrt{x} ;\ => \ x-2\sqrt{x} -3=0;$

$\left \{ {{\sqrt{x} =-1} \atop {\sqrt{x} =3}} \right. \ => \ x=9.$

4) finally, answer: 9.

4 0

1 year ago

Can someone help me please

neonofarm [45]

Ok, to show that she is incorrect we can use any other number in both equations and they will not be equal. the number she used does turn out equal but that does not mean the equations are equal.
for example
2 times 3=6
3 to the power of 2 is 9

that shows the expressions are not equal

4 0

3 years ago

Two ways to evaluate 15(90-3)

Dima020 [189]

Distribute 1st or subtract 90 and 3 first and then multiply by 15

6 0

2 years ago

If a book cost $5 and the sales tax rate is 6.5%, how much would the book cost?

marin [14]

Answer:

$5.33

Step-by-step explanation:

6 0

2 years ago