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Kay [80]
3 years ago
8

5 (4^2)-6 (1+4)-(-3)

Mathematics
1 answer:
sashaice [31]3 years ago
7 0
The answer is 53

Do what's inside parentheses first then add or subtract all the numbers together
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Area of a right angled triangle whose sides containing the right angle are 12 dm and 5 dm is _
valkas [14]

Answer:

60 cm

Step-by-step explanation: how I got your answer is by multiplying 5 times 12

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3 years ago
Write the equation of the hyperbola with foci at (1, 5) and (7, 5) and with vertices at (2, 5) and (6, 5).
mash [69]
If you plot the points given on a coordinate plane you see that this is a hyperbola that is is horizontal in nature, meaning it opens side to side, not up and down.  We can determine the center of it by taking the point equidistant from the vertices, which is (4, 5), the h and k of our center, respectively.  Also, the equation looks like this when it is horizontal: \frac{(x-h) ^{2} }{ a^{2} } - \frac{(y-k) ^{2} }{ b^{2} } =1.  a is the distance between the center and the vertices, so our a = 2, and c is the distance between the center and the foci, so our c = 3.  We need to find b now, using Pythagorean's theorem.  ( 2)^{2} + b^{2} =( 3)^{2} and b= \sqrt{5}.  Now we have everything we need to rewrite the equation: \frac{(x-4) ^{2} }{4} - \frac{(y-5) ^{2} }{5} =1
6 0
3 years ago
How to factorise x2+x+1 ​
Arisa [49]

Answer:

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-1

7 0
2 years ago
Interior and Exterior Angles of Polygons -
ANTONII [103]

Answer:75

Step-by-step explanation:

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7 0
3 years ago
Read 2 more answers
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P(sugar cookie)= 8/28=4/14
P(peanut butter cookie)=5/27
3 0
4 years ago
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