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siniylev [52]
3 years ago
14

Please help, Geometry I have NO idea how to do this. (#17, #20)

Mathematics
1 answer:
jok3333 [9.3K]3 years ago
5 0
The image is answer.................

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The area of a triangle is 299 square centimeters. The length of the base is 46 centimeters. What is the height of the triangle?
k0ka [10]
$$\begin{matrix}
299=\frac{1}{2}\left(46\right)h\\\\\frac{1}{2}\left(46\right)h=299\\\\23h=299\\\\\frac{23h}{23}=\frac{299}{23}\\\\h=13\\\\h=\mathbf{13cm}
\end{matrix}$$
7 0
3 years ago
Read 2 more answers
Amma hikes 2and3/4 miles of nature trail in 1 hour and 15 minutes. How many miles does Amman hike per hour?
LekaFEV [45]
Formula
====
d = r * t

Givens
======
d = 2 3/4
t = 1 hour 15 minutes 
r = ????

Calculations
==========
You need to convert the 15 minutes to hours.
1 hour = 60 minutes
x hour = 15 minutes

1/60 = x/15
x = 15/60
x = 0.25 hours
so the time = 1 hours + 0.25 hours
t = 1.25 hours

Now you need to do something with the distance.
3/4 mile = 0.75 of a mile
So the distance = 2 + 0.75 = 2.75 miles

Now you are ready for the answer.
d = r * t you are looking for r
2.75 = r * 1.25
r = 2.75/1.25
r = 2.2 miles / hour

Note you could do this with fractions.
2 3/4 = 11/4
1 1/4 =  5/4

r = 11/4 // 5/4 =11/5 = 2 1/5 which is the same thing as 2.2. If your calculator can handle fractions (those kind of calculators cost about 10 dollars in Canada. It should be 8 in the US) that might be the way to do this problem.
6 0
3 years ago
Let a= x2 +4 rewrite the following equation in terms of a and set it equal to zero. (X2 + 4)2 + 32 = 12x2 + 48 in the resulting
Alex73 [517]
Answer: \\ {( {x}^{2} + 4) }^{2} + 32 = 12 {x}^{2} + 48 \\ \Leftrightarrow {a}^{2} + 32 = 12( {x}^{2} + 4) \\ \Leftrightarrow {a}^{2} + 32 = 12a \\ \Leftrightarrow {a}^{2} - 12a + 32 = 0 \\ \Rightarrow Coefficients:1, \: -12. \: Constant:a
5 0
3 years ago
Is 4, 6, 7 a pythagorean triple
madam [21]

Answer:

Yes

Step-by-step explanation:

Hope this helps!

Good Luck!

7 0
3 years ago
Read 2 more answers
The point which divides the line segment joining the points (2, -6) and (3, 4) in the ratio 1 : 2 internally lies in the
ludmilkaskok [199]
According to someone else on brainly it says he point which divides the line segment joining the points 8,-9 and 2,3 in the ratio 1:2 internally lies in the quadrant
8 0
3 years ago
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