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Soloha48 [4]
3 years ago
11

Perform the calculation then round of the appropriate number of significant digits 4.492 ÷ 1.24

Mathematics
1 answer:
morpeh [17]3 years ago
7 0
557008 is the answer

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A tiny area on a computer chip measures 2.3x10^-3mm by 1.7 x10^-4mm.
Svet_ta [14]
I think it's B cuz
2.3 * 10^-4 = 16.1
And
1.7 * 10^-4 = 10.2
So 16.1 - 10.2 = 5.9
Rounded= 6
I'm not sure tho
8 0
3 years ago
Write an equation in slope intercept form (4,-2) (0,-5)​
Zarrin [17]

Answer:

y=-7/4x+5

Step-by-step explanation:

The line contains points at (4,-2) and (0,-5)

(y1-y2) / (x1-x2) = slope

(4,-2) =(x1,y1)

(0,-5) = (x2,y2)

(-2-5) / (4-0)

-7 / 4 = -7/4

y= -7/4x + b

plug in points for x and y to find b

-2=-7/4(4)+b

-2=-7+b

5=b

y=-7/4x+5

7 0
3 years ago
Help with number 13. . . . . .
kvasek [131]

Answer:

6A, D

Step-by-step explanation:

So, you have A = b*h. The general formula for the area of a triangle. Then, we double the base and triple the height. We then get the expression (2b)*(3h).

Since it is multiplication, we can multiply 2 and 3 to get 6 and get 6*b*h.

Though, we know b*h is just A so we get 6A.  

8 0
3 years ago
1. Add or Subtract. Show your work
Sav [38]

QUESTION 1a.

We want to add

( - 2 {x}^{2}  - 4x + 13) + (12 {x}^{2}  + 2x - 25)

We group similar terms to get

- 2 {x}^{2}  + 12 {x}^{2}- 4x + 2x   - 25 + 13

Simplify:

- 10{x}^{2} - 2x  -12

QUESTION 1b.

The given function is:

(7x^2+4x-26)-(-7x^2-3x+15)

Expand the parenthesis to obtain,

7x^2+4x-26 + 7x^2 + 3x - 15

Group similar terms,

7x^2+7 {x}^{2}  + 4x + 3x-26  - 15

Simplify:

14{x}^{2}  + 7x-41

QUESTION 2

The given function is

f(n)=n^2-6n-16

The zeros of this function is given by;

n^2-6n-16 = 0

Split the middle term.

n^2-8n + 2n-16 = 0

Factor;

n(n - 8) + 2(n - 8) = 0

(n - 8)(n + 2) = 0

n - 8 = 0 \: or \: n + 2 = 0

n  = 8 \: or \: n =  - 2

4 0
3 years ago
In the triangle below, what is sin θ?
Len [333]
Sin theta = 10/26 = 5/13

Hope it helps.
5 0
4 years ago
Read 2 more answers
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