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Eva8 [605]
3 years ago
14

What is the scientific notation for a lenth of 0.000028?

Mathematics
2 answers:
vovangra [49]3 years ago
6 0
It’s the millionth i think idk how to say it
valentina_108 [34]3 years ago
3 0
2.8×10^ -5
Scientific notation is found by finding a number between 1 up to 9.9 (but not 10).

eg. 2.8 ( place à dot in between the number and count back to the original dot)
0.00002.8 (it moves 5 times)
Use ×10 to indicate the position (No of 0's)
if you move to the left, the power is -
If you move to the right, the power is +

Therefore 2.8×10^-5
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Which of the following statements is true if m∠E = m∠Y and m∠F = m∠X?
mars1129 [50]

Answer:

segment FE over segment XY equals segment EG over segment YZ equals segment GF over segment ZX

Step-by-step explanation:

see the attached figure to better understand the problem  

we know that  

If m∠E = m∠Y and m∠F = m∠X  

then  

Triangles EFG and YXZ are similar by AA Similarity Theorem  

Remember that  

If two figures are similar, then the ratio of its corresponding sides is proportional and its corresponding angles are congruent  

In this problem  

The corresponding sides are  

FE and XY  

EG and YZ  

GF and ZX  

so therefore  

segment FE over segment XY equals segment EG over segment YZ equals segment GF over segment ZX Firstly , let us learn about trigonometry in mathematics.  

Suppose the ΔABC is a right triangle and ∠A is 90°.  

sin ∠A = opposite / hypotenuse

cos ∠A = adjacent / hypotenuse

tan ∠A = opposite / adjacent

Let us now tackle the problem!  

A similar triangle has the same angle, in other words the triangle has the same shape but different sizes.  

From the figure in the attachment , we can conclude that:  

m∠E = m∠Y  

m∠F= m∠X  

m∠G = m∠Z  

∴ ΔEFG ~ ΔYXZ  ( ΔEFG is similar to ΔYXZ )    

Because of the similarity , then:  

FE : XY = EG : YZ = GF : ZX  

Conclusion:

ΔFG is similar to ΔYXZ.  

Segment FE over segment XY equals segment EG over segment YZ equals segment GF over segment ZX , i.e:    

Keywords: Sine , Cosine , Tangent , Opposite , Adjacent , Hypotenuse , Triangle , Fraction , Lowest , Function , Angle

3 0
2 years ago
Read 2 more answers
Find an upper bound for E(h) the error of the machine approximation of the two-point forward difference formula for the first de
AlexFokin [52]

Answer:

I doubt it is not going to be a great

8 0
2 years ago
Which Two Numbers Add Up To Negative 26 And Multiply To 11?
Fynjy0 [20]
Xy=11
x+y=-26


x+y=-26
minus x both sides
y=-26-x

sub for y
x(-26-x)=11
-26x-x^2=11
add 26x+x^2 both sides
x^2+26x+11=0

ax^2+bx+c=0
x=\frac{-b+/- \sqrt{b^{2}-4ac} }{2a}


a=1
b=26
c=11

x=\frac{-26+/-\sqrt{26^{2}-4(1)(11)} }{2(1)}
x=\frac{-26+/-\sqrt{676-44} }{2}
x=\frac{-26+/-\sqrt{632} }{2}
x=\frac{-26+/-2\sqrt{158} }{2}
x=-13+/-\sqrt{158}

x=-13+\sqrt{158} or -13-\sqrt{158}

aprox

x=-0.420195 or -25.5698

those are the numbers
5 0
3 years ago
Write each prime factorization using exponents.<br> 1. 2×2×2×7<br> 2. 2×3×3<br> 3. 7×7×7×7
frez [133]
1). 2³ x 7
2). 2 x 3²
3). 7⁴
4 0
3 years ago
If a flat screen television is a rectangle with a 53 inch diagonal and a width of 45 inches, what is the height of the screen.
Leto [7]

Answer:

Length= 28 inches

Step-by-step explanation:

Hope it helps!!!!

8 0
2 years ago
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