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tatiyna
3 years ago
11

There are 78 students in the fourth grade 39 of them are girls

Mathematics
2 answers:
Zepler [3.9K]3 years ago
6 0
What is the rest of the problem or equation ?
ira [324]3 years ago
5 0

Answer:

This means that the answer is 39

Step-by-step explanation:

if u subtract 78 from 39 u get 39 just as if u add 39 + 39= 78.

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99999999÷777777777÷888888888888×8888889999=<br><br>EXPLAIN NO CHEATING
Zarrin [17]

Answer:

0.00128571443

Step-by-step explanation:

go left to right

4 0
2 years ago
ΔABC is a right triangle. Prove: a2 + b2 = c2 Right triangle BCA with sides of length a, b, and c. Perpendicular CD forms right
777dan777 [17]

Answer: Pythagorean Theorem Pieces of Right Triangles is not a justification for the proof.

Explanation : Here, \triangle ABC is a right triangle with sides a, b and c. Perpendicular CD forms right triangles BDC and CDA.

CD measures h units, BD measures y units, DA measures x units.

Draw an altitude from point C to Line segment AB Let segment BC = a segment CA = b, segment AB = c,  segment CD = h,  segment DB = y, segment AD = x,

y + x = c

a/c=y/a( Similarity theorem in triangles ABC and DBC )

a^2 = cy------(1) (Cross Product Property)

Similarly, b^2 = cx (Similarity theorem in triangles ABC and ADC)---------(2)

a^2 + b^2 = cy + cx(after adding equation (1) and (2) )

a^2 + b^2 = c(y + x)( By additional property of equality)

a^2 + b^2 = c^2. ( because y + x=c)

Thus, it has been proved that except Pythagorean Theorem Pieces of Right Triangles we use all other properties.

8 0
3 years ago
Read 2 more answers
Plz answer i will really apreciate it :) 50 points
hoa [83]

Answer:

b or c

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Anna had $54 in her purse. She bought a book for $26.34 and a book marker for $1.27. Anna’s mom then gave her $10 for completing
jekas [21]

Answer:

Anna has $36.39 dollars.

Step-by-step explanation:

All we have to do is subtract

54 - (26.34 + 1.27) =

54 - 27.61 =

36.39

So, the answer is 36.39

Hope this helps! :)

3 0
2 years ago
Read 2 more answers
Find the next two terms in sequence -5, 3, -2, 1, 0
IRISSAK [1]
The sequence is not geometric because there is no common difference or common ratio between each term. it’s also not an Arithmetic Sequence
8 0
2 years ago
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