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Alex787 [66]
3 years ago
11

Please help me please

Mathematics
1 answer:
vesna_86 [32]3 years ago
6 0
The simplified expression is 40x-11.

Hope this helped☺☺
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PLEASE HELP !! :c
konstantin123 [22]

Step-by-step explanation:

the perimeter =

4+4+6+4.5+2+4+4+2 =

30.5 cm

the area of:

• the bigger rectangle = 6×4 = 24 cm²

• the smaller triangle = 4×2 = 8cm²

• the triangle = ½×2×4 = 4cm²

the total area = 24+8+4 = 36cm²

6 0
3 years ago
Multiple-choice questions each have four possible answers left parenthesis a , b , c , d right (a, b, c, d)​, one of which is co
arlik [135]
A) Since there are four multiple choice questions Which has one correct answer. The probability of choosing a correct answer is

P(C) = \frac{1}{4}

The probability of choosing wrong answer is

P(W) = \frac{3}{4}

Using the multiplication rule
P(WWC) = P(W) \times P(W) \times P(C) \\ \\ P(WWC) = \frac{3}{4} \times \frac{3}{4} \times \frac{1}{4} \\ \\ P(WWC) = \frac{9}{64}

b) If you guess answers to three of the questions, then the possibilities of getting one correct answer are:

Either the first two are wrong and the third one is correct. This will give the arrangement;

WWC

Or the first is wrong the second one is correct and the last one is wrong. This will give the arrangement,

WCW

Or the first one is correct and the last two are wrong. This will give the arrangement,

CWW
.

P(WWC) = P(W) \times P(W) \times P(C) \\ \\ P(WWC) = \frac{3}{4} \times \frac{3}{4} \times \frac{1}{4} \\ \\ P(WWC) = \frac{9}{64}

P(WCW ) = P(W) \times P( C ) \times P(W) \\ \\ P(WCW) = \frac{3}{4} \times \frac{1}{4} \times \frac{3}{4} \\ \\ P(WCW) = \frac{9}{64}

P(CWW ) = P(W) \times P( C ) \times P(W) \\ \\ P(CWW) = \frac{1}{4} \times \frac{3}{4} \times \frac{3}{4} \\ \\ P(CWW) = \frac{9}{64}

c) The probability of getting one correct answer is either the first one is correct or second is correct or third is correct.

P(One \: Correct)= P(CWW) \: or P(WCW) \: or \: P(WWC) \\ \\ P(One \: Correct)= P(CWW) \: + P(WCW) \: + \: P(WWC) \\ \\ P(One \: Correct)= \frac{9}{64} + \frac{9}{64} + \frac{9}{64}  \\ \\ P(One \: Correct) = \frac{27}{64}
7 0
4 years ago
Read 2 more answers
Help me plzz I need help with this!!
Anni [7]

Answer:

expanded it would be 0.05 x 50 + 0.05 x 40

Step-by-step explanation:

5 0
3 years ago
Greg has a bag of beads that contains 16 black, 20 red, and 4 white beads. He randomly picks a bead, places it back into the bag
Anton [14]
The answer is 9bt if you gave me the rest of the question I would maybe be able to get the real answer.
7 0
4 years ago
Explain how to model the problem with algebra tiles and then write an algebraic expression that represents the situation.
jeka57 [31]

Step-by-step explanation:

the answer is in the picture

8 0
3 years ago
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