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zheka24 [161]
3 years ago
8

The expression 2x + 3.4 is equal to ? for x =1.6.

Mathematics
1 answer:
ololo11 [35]3 years ago
6 0

Answer:

6.6

Step-by-step explanation:

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What is the Inverse function of f(x)= x^2 - 49
tatyana61 [14]

Answer:

the opposite

Step-by-step explanation:

4 0
3 years ago
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He coordinates of the vertices of △DEF are D(2, −1) , E(7, −1) , and F(2, −3) .
miv72 [106K]
Given that th<span>e coordinates of the vertices of △DEF are D(2, −1) , E(7, −1) , and F(2, −3) and the coordinates of the vertices of △D′E′F′ are D′(0, −1) , E′(−5, −1) , and F′(0, −3) .

Notice that the y-coordinates of the pre-image and that of the image are the same, which means that there is a reflection across the y-axis.

A refrection across the y-axis results in the change in sign of the x-coordinates of the pre-image and the image while the y-coordinate of the image remains the same as that of the pre-image.

A refrection across the y-axis of </span>△DEF with vertices D(2, −1) , E(7, −1) , and F(2, −3) will result in and image with vertices (-2, -1), (-7, -1) and (-2, -3) respectively.

Notice that the x-coordinate of the final image △D′E′F′ with vertices <span>D′(0, −1) , E′(−5, −1) , and F′(0, −3) is 2 units greater than the vertices of the result of recting the pre-image across the y-axis.

This means that the result of refrecting the pre-image was shifted two places to the right.

Therefore, </span>the sequence of transformations that maps △DEF to △D′E′F′ are reflection across the y-axis and translation 2 units right.
5 0
3 years ago
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I<br>buy<br>book for $8,i<br>sell it for<br>$ 3.25.<br>How much<br>of<br>loss<br>do<br>i<br>make ?​
Anuta_ua [19.1K]

Answer:

Loss = $ 4.75

Step-by-step explanation:

Loss = cost price -selling price

You bought a book will be cost price and when u r selling it it will be selling price

loss = 8-3.25

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4 0
3 years ago
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Which statement explains how the lines x + y = 2 and y = x + 4 are related?
zysi [14]
Answer: X = -1 and Y = 3
—————————————
X + Y = 2
X = 2 - Y
————————
Y = x + 4
Y = 2 - Y + 4
2Y = 2 + 4
2Y = 6
Y = 3
————————
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X = -1
8 0
2 years ago
— 3х + 7 &lt; 19 ?<br> Help plz
Maksim231197 [3]

Answer:

x > -4

Step-by-step explanation:

— 3х + 7 < 19

Subtract 7 from each side

— 3х + 7-7 < 19-7

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Divide each side by -3, remembering to flip the inequality

-3x/-3 > 12/-3

x > -4

6 0
3 years ago
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