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3 years ago

Write an addition expression and a subtraction expression each with a value of 2.4 x 10^-3

1 answer:

8 0

Well,

You can just add up the numbers to get 2.4.

Example:
$1.0*10^{-3}+1.4*10^{-3}=10^{-3}(1.0+1.4)=2.4*10^{-3}$

In the same way you can make a subtraction problem.

Example:
$5*10^{-3}-2.6*10^{-3}=10^{-3}(5-2.6)=2.4*10^{-3}$

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Two researchers are studying the decline of elephant populations. In one study, a population of 1,568 elephants is expected to d

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After 3 years the populations will be the same

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3 years ago

I need HELP please!!!!

svlad2 [7]

Answer:

Step-by-step explanation:

Multiply 6 and 15 then you get 90 the you do 6x6 you get 36

After you subtract 90 from 36 = 54

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4 years ago

Find the value of m angle 3-m<1

emmainna [20.7K]

Answer:

The value of $m\angle 3-m\angle 1$ = $50^{\circ}$

Step-by-step explanation:

Vertical Angle theorem: It is about the angles that are opposite to each other.

Also, vertical angle are congruent that means vertical angles are equal.

In the given figure; $m\angle 3$ and $70^{\circ}$ are vertical angle

then, by vertical angle theorem, $m\angle3 =70^{\circ}$ .

Supplementary angle: the sum of the angles whose measure on the straight line is 180 degree.

From the figure, $70^{\circ}$ , $\angle 1$ and $m\angle 2 =90^{\circ}$ forms a straight line.

then, by the definition of Supplementary angle;

$70^{\circ}+m\angle 1 +m\angle 2=180^{\circ}$

Substituting the value of $m\angle 2 =90^{\circ}$ in above equation:

$70^{\circ}+m\angle 1 + 90^{\circ} =180^{\circ}$ or

$160^{\circ}+m\angle 1=180^{\circ}$

Simplify:

$m\angle 1=180^{\circ}-160^{\circ} =20^{\circ}$

therefore, $m\angle 1= 20^{\circ}$ and $m\angle 3=70^{\circ}$ ,

the value of $m\angle3-m\angle1= 70^{\circ}-20^{\circ} =50^{\circ}$ .

7 0

3 years ago

A: 15<br> B: 21 <br> C: 26<br> D: 105

Hatshy [7]

Answer:B=21

Step-by-step explanation:

it is because combined J an N are 105 across from that is the same so x is 21 because 5(x) = 21 u do 105 divided by 5 to get the answer

4 0

3 years ago

Read 2 more answers

Help please.<br> Is algebra.

yKpoI14uk [10]

Answer:

Step-by-step explanation:

To find the average rate of change, we can use the formula: (y2-y1) / (x2-x1).

Let (15, 45) be (x1, y1) and (29, 87) be (x2, y2).

So we have: (87-45) / (29-15)

This can be simplified to: 42/14, or 3.

Let me know if this helps!

5 0

3 years ago

Read 2 more answers