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Nikolay [14]
3 years ago
14

Which is the equation on the line?

Mathematics
1 answer:
laiz [17]3 years ago
8 0
The second one but its small i cant see!!
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Erin bought a $205 smart phone, but her total was $217.30. What percent sales tax did she pay?
andrey2020 [161]

Answer:

6.00 %

Step-by-step explanation:

205.00 × 0.060= 12.3

205.00 + 12.3= $217.30

6 0
3 years ago
0.00000003 in scientific notation
tester [92]

Answer:

3×10x^{-8}

Step-by-step explanation:

0.00000003

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the  

10 . If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.

6 0
3 years ago
Evaluate 5x^2 + 2 for x = -1.
iogann1982 [59]

Answer:

7

Step-by-step explanation:

If x = -1 then we need to plug that into the equation.

5(-1)^2 +2

Then solve for the first part

5(1) + 2

Then multiply.

5 + 2

Then add

7.

Hope this helped!

6 0
3 years ago
Read 2 more answers
A map has a scale factor of 1 inch: 50 miles. Two cities are 550 miles apart.
Reil [10]

Answer:

okay easy peasy..

first we know that 1 inch represent 50 miles

therefore 550 miles is represented by

= 550/50 = 11 inch

so with this we know that on map the cities are 11 inch apart..

5 0
2 years ago
Can someone answer this question please answer Roy correctly if it’s correct I will mark you beainliest
kirza4 [7]

Answer: 4.46 cm

Step-by-step explanation:

The image size = 30.51cm

Width of the page = 21.59cm

To know the extra width , we will subtract the width of the page from the width of the image. That is

30.51 - 21.59 = 8.92cm

to center the image , we will divide the extra width by 2 , that is

8.92/2 = 4.46cm

Therefore ; Joelle should use 4.46cm  horizontal position for the left edge of  the image to center the image

7 0
3 years ago
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