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8090 [49]
3 years ago
14

Evaluate a + 4 when a = 7

Mathematics
1 answer:
aalyn [17]3 years ago
4 0
If a is equal to 7. The answer is 11. 7+4
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All three sides of a triangle are initially 5.0 long. One of the triangle's sides is oriented horizontally. The triangle is scal
zlopas [31]

Answer:

h = 3.62

Step-by-step explanation:

First, as both triangles have the same angles we can use the relationship of areas and sides corresponding to similar triangles as follows:

relation\ between\ areas=( relation\ between\ sides)^2\\\frac{0.7A}{A}=(\frac{s}{5})^2\\s= 5\sqrt0.7= 4.18

Now we know that the new triangle has sides of 4.18. Then, as these triangles are equilateral we can use the Pythagorean Theorem to find the height:

4.18^2=h^2+(\frac{4.18}{2})^2\\h=\sqrt (4.18^2-2.09^2)=3.62 m\\h= 3.62

Finally the height of this new triangle is 3.62 cm

6 0
3 years ago
How can I find a rule in a math question
NeTakaya

Answer:

Step-by-step explanation:

How to write the rule of a function given the table of values. To write the rule of a function from the table is somehow tricky but can be made easier by having prior knowledge of the type of function. If the function is a linear function, plugging any two sets of values from the table into the equation y = ax + b, where a and b are constants to be found and x, y are values taken from the table. Solving the two equations obtained simultaneously gives the values of a and b and hence the required rule.

Similarly, if the function is a quadratic equation, plugging any three sets of values from the table into the equation y = ax^2 + bx + c, where a, b, c are constants to be found and x, y are values taken from the table. Solving the three equations obtained simultaneously gives the values of a, b and c and hence the required rule. For tables with no prior knowledge of the type of function, a series of trial and error will lead us to the solution of the problem.

6 0
3 years ago
Least to greatest<br> 2.43<br> 2.43<br> -2 1/3<br> 2 5/9
3241004551 [841]

Answer:

Step-by-step explanation:

-2 1/3 2 5/9 2.43 2.43

6 0
3 years ago
Read 2 more answers
-Please help I need it super bad I don't want to fail :(
bogdanovich [222]

Answer:

;-;

Step-by-step explanation:

1) 153.86cm²

2) 28.26cm²

3) 65.94cm²

4) 63.585cm²

5) 8167.14ft²

6) 78.5m²

7) 314in²

8) 490.625cm²

9) 1384.74ft²

10) 50.24m²

4 0
4 years ago
The original price of a jacket is $68. The sale price is 30% off the original price. What is the amount off the original prices
just olya [345]

30% off $68.00 is $20.4 hope this helps

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3 years ago
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