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3 years ago

Pleasee help i will love u if you help meeeee

Mathematics

2 answers:

Lubov Fominskaja [6]3 years ago

5 0

The midpoint of the line CD=3

Tomtit [17]3 years ago

4 0

Answer:

CD = 3

Step-by-step explanation:

If B is the midpoint of AC, AB and BC are equal. BC = 2, so that means AB = 2. This means AC = 4. If the whole line = 7, then CD, the only segment we don't know, = 7 - 4, which equals 3.

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Suppose that E and F are two events and that N (E and F) = 260 and N(E) = 630. What is P(F|E)?

Sveta_85 [38]

Answer: 0.4127

Step-by-step explanation:

The probability formula to find p(F/E):

p(F/E)= N(E n F) / N(E)

p(F/E)= 260 / 630

p(F/E) = 0.4127

5 0

3 years ago

If a1=10 and an+1=-5an-1 then find the value of a4<br><br>Please explain!

Umnica [9.8K]

Answer:

$a_4=-1271$

Step-by-step explanation:

We are given that:

$a_1=10$

And:

$a_{n+1}=-5a_n-1$

And we want to find:

$a_4$

This is a recursive formula. So we can simply substitute in each value. For instance, a₂ will be:

$a_2=a_{(1)+1}=-5a_{1}-1=-5(10)-1=-51$

Thus, a₃ will be:

$a_3=a_{(2)+1}=-5a_2-1=-5(-51)-1=254$

Finally, a₄ will be:

$a_4=a_{(3)+1}=-5a_3-1=-5(254)-1=-1271$

4 0

3 years ago

Which angle number represents HEC?

DIA [1.3K]

Answer:

Step-by-step explanation:

6 0

3 years ago

Help me for brainliest :)

Leviafan [203]

Answer:

A. 105°

Step-by-step explanation:

∠4 + ∠5 = 150

∠4 ≅ ∠5

150 ÷ 2 = 75

∠4 = 75

∠5 = 75

180 - 75 = 105

∠1 = 105

6 0

3 years ago

Read 2 more answers

Which sequence of transformations proves that shape I is similar to shape II?

Sloan [31]

Answer:

the answer is D

Step-by-step explanation:

if you reflect the shape then translate it it will be in the same position therfore it is in fact D

8 0

3 years ago

Read 2 more answers