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harina [27]
3 years ago
13

Triangle DEF is similar to triangle GHK. What is the value of DF if GK is 3.4 inches, EF is 2.25 inches, and HK is 9 inches?

Mathematics
1 answer:
kap26 [50]3 years ago
4 0
DF=3.4 because it's congruent to GK
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Exercise
Maurinko [17]
X - nominator
y - denominator

\frac{3x}{y+12}=\frac{3}{4}\\
\frac{x+7}{3y}=\frac{1}{2}\\\\
3(y+12)=12x\\
2(x+7)=3y\\\\
3y+36=12x\\
2x+14=3y\\\\
2x+14+36=12x\\
10x=50\\
x=5\\\\
3y=2\cdot5+14\\
3y=10+14\\
3y=24\\
y=8\\\\
\frac{x}{y}=\boxed{\frac{5}{8}}
6 0
4 years ago
In a garden, there are as many plats per row as the number of row. If there are 4096 plants, how many plants are there per row?
hram777 [196]
It could be 2,048 cause 4096 divided by 2 equals 4096
5 0
3 years ago
Find the midpoint of the line segment with end coordinates of:
Kaylis [27]

Answer:

Step-by-step explanation:

The Midpoint formula is

M=(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2}) where the x's and y's come from the coordinates of the endpoints. Filling in:

M=(\frac{-2+(-1)}{2},\frac{-4+(-5)}{2})=(\frac{-3}{2},\frac{-9}{2})=(-1.5,-4.5)

7 0
3 years ago
The Law of Large Numbers: I need help on finding the probability of this situation.
Stella [2.4K]

The mean time it takes to walk to the bus stop is 8 minutes (with a standard deviation of 2 minutes) and the mean time it takes for the bus to get to school is 20 minutes (with a standard deviation of 4 minutes). The distributions are normal. a. How long will it take (in minutes), on average, to get to school? b. What is the standard deviation of the trip to school? c. What is the probability that it will take longer than 30 minutes to get to school? Due to a miscalculation, you realize it actually takes an average of 10 minutes to walk to the bus stop. d. How long will it take (in minutes), on average, to get to school? e. What is the standard deviation of the trip to school? f. What is the probability that it will take longer than 30 minutes to get to school? The only ones I need help with is C and F. I have the answer for the rest of them. Can someone please help me with parts C and F??

4 0
3 years ago
This is my official last question that i will give brainliest on plz help<br> free 100 pts
Kaylis [27]

Answer:

Measure of Angle A is 44.

(x+59)+84+(x+51)=180 is the equation to fine X=-7

8 0
3 years ago
Read 2 more answers
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