3 years ago

HELP HELP!!!! YOU WILL GET BRAINLIEST!! PLEASE!!!

Mathematics

1 answer:

LiRa [457]3 years ago

5 0

Um idk sorry lol that’s way to hard for me

You might be interested in

Suppose that 20° of boys opted for mathematics and 40% of girls opted for mathematics. What is the probability that a student op

ankoles [38]

Answer: 30%

Step-by-step explanation:

Let A be the probability of a student opting for mathematics - it consists of either boy opting for mathematics or girl opting for mathematics. As there is "or" we need to sum these probabilities.

$P(A) = P(B)* P(M|G) + P(G)*P(M|G)$

$P(A) = \frac{1}{2} * \frac{20}{100} + \frac{1}{2} * \frac{40}{100}$

$P(A) = 3/10 = 0.3$

=> 30%

5 0

3 years ago

What is the area of a rectangle of 5/9 m in length and 7/8 m in width

Andru [333]

Answer:

35/72 $m^2$

Step-by-step explanation:

Rectangle Formula: $l*w=Area$

Switch the variables with the numbers given:

$\frac{5}{9} *\frac{7}{8} =Area$

Multiply the top and bottom:

5*7 = 35

9*8 = 72

35/72 = Area

6 0

3 years ago

Ella has $115. She wants to purchase a cell phone for $53 and spend the rest on music. Each music download cost $9. Write and so

Mumz [18]

Answer: 6.89

Step-by-step explanation:

9x+53>= 115

Subtract 53 from both sides

9x+(53-53) >115-53

9x>62

Divide both sides by 9.

9x÷9>62÷9 = 6.889

3 0

3 years ago

Math question no Guessing and Please show work

Nataly [62]

What's the question?

6 0

3 years ago

All vectors and subspaces are in RnR n. Mark each statement True or False. Justify each answer.

Leto [7]

Answer:

a. True

b. True

c. False

d. False

e. False

Step-by-step explanation:

The matrix with orthonormal column must be in square for that it forms orthogonal matrix. Every orthonormal set of non zero vector is linearly independent. This statement is correct because there is linear combination of non zero vectors.

4 0

3 years ago