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sweet-ann [11.9K]
3 years ago
7

Given: ∆DEK, DE = EK

Mathematics
1 answer:
Hunter-Best [27]3 years ago
4 0
DFE=46
kf=8

because ef is bisector that means e is 44+44=88 since the triangle is isosceles the other angles are equal 180-88=92 so each angle is 46. since 46+44=90 the smaller triangle def and efk are right. so I think that makes ef the perp bisector so that de=FM so kf=1/2dk.
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2) Steve drives 78 miles on 3 gallons of gas. Find the miles per gallon.
oksano4ka [1.4K]
1st question: 26 miles per gallon

2nd question: 4 miles per hour

3rd question: The 5 bags of pretzels is the lower unit price.

Hope this helps!
4 0
3 years ago
Read 2 more answers
Hi, the answer is K but can anyone show why
dlinn [17]

Let's do 51 and 52.

51. The contrapositive has the same truth value as the original statement. That's opposed to the converse, which may or may not be true independent of the original statement.

The contrapositive of IF P THEN Q is IF not Q THEN not P.  They're equivalent.  Here that's If the cat is not female then it is not tricolor.

Answer: C

52.  

(x^3)^{(4-b^2)}=1

x^{3(4-b^2)} = 1

For the statement to be true, the exponent must be zero:

3(4-b^2) = 0

b^2 = 4

b = \pm 2

Both positive 2 and negative 2 have a square of 4.

Answer: K

By the way, usually we assume 0^0=1 so the restriction that x \ne 0 isn't really necessary.  Think of the definition of a polynomial or the binomial expansion:

\displaystyle f(x)=\sum_{k=0}^n a_k x^k

\displaystyle(x+y)^n=\sum_{k=0}^n {n \choose k} x^{k}y^{n-k}

For these common equalities to work when x=0 we need to define 0^0=1


3 0
3 years ago
What is the midpoint of line AC
pishuonlain [190]

Answer:

N/A

Step-by-step explanation:

What is line AC, was there supposed to be a picture?

4 0
3 years ago
Anya says, 62,996 rounds to 63,000 select all the places to which she could have rounded the number
OLga [1]

<span>She could round this number may it be in the tens and hundreds place. When rounding off a number, one should consider the place of the digit he or she would like to round it off to. One should consider what number is placed at the right of the rounding number. If the number is below 5, then that digit should remain and the rest of the digits to the right should be turned to 0s. </span>

6 0
3 years ago
Help with a question
jolli1 [7]
 If my above assumption is correct, we can easily find the area of the left side of the rectangle by finding the area of 3 things. The first is the area of the entire region.

At = (0.8)(1.0+1.4) = 1.92

Next we need the area of the circle. Which is pi*r^2, with r being height divided by two. (0.4)
C = 0.502

Finally we need to find the area of the rectangle left region. Which is basically the rectangle from the center of the circle region to the end of the left of the entire region. This is just (1.0)(0.8) = 0.8

Finally we can find the area of the light blue area by just subtracting half the area of the circle (dark blue) from the area we just calculated.
0.8 - (0.502 / 2) = 0.549

Now for the probability we do this area divided by total area.

0.549/1.92 = 0.285 or about 0.29 which is just 29%
4 0
3 years ago
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