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Murljashka [212]
3 years ago
7

The measures of the sides of a triangle are 2x + 3, 8x – 4, and x^2 Write an expression that describes the perimeter of the tria

ngle. A. X^2-1 B. 11x-7 C. x^2+10x-1 D. x^2+10x-7
Mathematics
1 answer:
lawyer [7]3 years ago
3 0


P = 2x+3+8x-4+x² = x² +10x-1
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In the figure, ABC and DEF are similar. What's the scale factor from ABC to DEF?
Elena-2011 [213]

Answer:

3

Step-by-step explanation:

The scale factor of ABC to DEF is the number you need to multiply a corresponding side of ABC to get one of DBC. We are given the two triangles are similar, so we can say that sides AB and DE are proportional. We are looking for the number we need to multiply AB by to get DE. From this relation, we can get the equation:

AB * x = DE

where x is our scale factor. We can substitute in the values of AB and DE, and solve for x:

5x = 15

x = 3

Therefore, the scale factor is three. This means that you can multiply any side of ABC by 3 to get a side of DEF.

7 0
3 years ago
PLEASE!!! I NEED THIS ANSWER DESPERATELY
Natasha_Volkova [10]
The answer to this question is 14 degrees Fahrenheit.
T(60) = (-7/6)(60) + 84 = 14
7 0
3 years ago
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9x9/16+12 whats the answer
ddd [48]

Answer:

17.0625

Step-by-step explanation:

Due to order of operations the division and multiplication get done first and the we add the 12

3 0
3 years ago
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the ratio of pennies to quarters in a piggy bank is 14:3. if there are 51 quarters in the bank, how many pennies are there
malfutka [58]

The number of pennies in bank is 42

<em><u>Solution:</u></em>

Given that ratio of pennies to quarters in a piggy bank is 14 : 3

Let 14x be the number of pennies in piggy bank

Let 3x be the number of quarters in piggy bank

<em><u>To find: number of pennies</u></em>

Given that there are 51 quarters

number of pennies in piggy bank + number of quarters in piggy bank = 51

14x + 3x = 51

17x = 51

x = 3

number of pennies = 14x = 14(3) = 42

Thus the number of pennies in bank is 42

4 0
3 years ago
The area of a rectangle is 40 square feet. What could be the perimeter of the rectangle? how is this problem solved.
schepotkina [342]

A possible perimeter for the rectangle would be 28

Area=L x W

40/10=4

Width=4, Length=10

Perimeter=L+L+W+W

4+4+10+10=28

4 0
3 years ago
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