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Nadusha1986 [10]
2 years ago
12

The diagram below shows two

Mathematics
1 answer:
LiRa [457]2 years ago
6 0

Answer:

4 cm

Step-by-step explanation:

\frac{8}{ST}  = \frac{4}{2} \\\\ST = 8*2 / 4\\ST = 4

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Help me on 12 and 13 please
posledela

Answer:

12. h=3

13. h=-3

Step-by-step explanation:

12. Recall that -2^{x-h} is a horizontal shift since h is being applied within the operation to the input. This means that h will slide the function left or right. Since the function f has a point at (1,-2) and g has the same point at (4,-2) then the function has moved 3 units 1+3=4 to the right. h=3.

13. Once again, h is a horizontal shift meaning the graphs has moved left or right only. Looking at g it has a point at (-2,2) while f has the same point at (1,2). So the graph f has moved to the left 3 units. This is h=-3 since 1+-3 = -2.

5 0
3 years ago
Find the slope of a line parallel to 3x + y = 15
Maurinko [17]
Rearranging the equation gives us y=15-3x

if we were to find an equation for a PARALLEL line, we would just use the same slope.

if we were to find an equation for a PERPENDICULAR line, we would do the opposite reciprocal. in this case, that would be answer D. but this is WRONG!

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final answer -- C.
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3 years ago
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Geometry math question please help
Nikolay [14]

AD is perpendicular to BC so slope Ad = -1/slope of BC

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3 years ago
A single gram of a certain metallic substance has 0.52 g of copper and 0.25 g of zinc the remaining portion of the substance is
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Ben's estimate gives 7 g of nickel; the actual amount is 8.03 g.

In 1 g of the substance, there is 0.52 g of copper and 0.25 g of zinc; this gives 
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Using Ben's estimate, 0.2 g of nickel per gram of substance, we have
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The actual amount is 0.23(35) = 8.03 g of nickel in 35 g of the substance.
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Multiply 7 x 12 which is 84, 8x2 is 16, 16 divded by 3 is 5, so 5 minutes
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