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morpeh [17]
2 years ago
11

:) Answer fast if you can

Mathematics
2 answers:
Oksana_A [137]2 years ago
6 0
Answer is B according to distributive property.
Ilya [14]2 years ago
3 0

Answer:

The answer is B

Step-by-step explanation:

Hope it helps

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In the diagram, JKLM∼EFGH. Find the scale factor of EFGH to JKLM
mote1985 [20]
The answer is k= 2.5

Explanation: Rotating the shape will show that one side is 20:8. Divide these together and you get 2.5.

Hope this helps
5 0
3 years ago
Kym switched cell phone plans. She signed up for a new plan that will save her $3.50 per month compared to her old cell phone pl
Alexandra [31]

Answer:

Hi there,

$294 per year = $24.50 per month

Kim paid $24.50 + $3.50 = $28 per

month with her old phone plan.

Hope this helps :-)

Step-by-step explanation:

5 0
3 years ago
Mara simplifies the expression: -(7x - 3y) + 2(x + 4). Her work is shown. In what step does she make a mistake?
likoan [24]

<em><u>Correct steps are shown</u></em>

<em><u>Correct simplified expression is:</u></em>

-(7x - 3y) + 2(x+4) = -5x + 3y+8

<em><u>Solution:</u></em>

<em><u>Given that: Mara simplifies the expression</u></em>

-(7x - 3y) + 2(x+4)

<em><u>Correct steps are:</u></em>

From given,

-(7x - 3y) + 2(x+4)

<em><u>Use the distributive property,</u></em>

a(b + c) = ab + bc

Therefore,

-(7x - 3y) + 2(x+4) = -7x +3y + 2x + 8

Group the like terms

-(7x - 3y) + 2(x+4) = -7x + 2x + 3y + 8\\\\Combine\ the\ like\ terms\\\\-(7x - 3y) + 2(x+4) = -5x + 3y+8

Thus the expression is simplified

8 0
3 years ago
Determine the number of real solutions each quadratic equation has
Serjik [45]

Answer:

where is your quadratic equation

Step-by-step explanation:

b^2-4ac>0=2 real # solutions

b^2-4ac=0=1 real # solutions

b^2-4ac<0=0 real # solutions

8 0
3 years ago
50 question true-false final exam (two-points each question) and you never paid attention in the class (or knew anything about t
DanielleElmas [232]

Title:

<h2>Check the explanation.</h2>

Step-by-step explanation:

As all the questions of the exam carry 2 points, at least \frac{56}{2} = 28 questions need to be correct to get 56 marks.

In order to get a maximum of 56 marks, at most 28 answers needs to be correct.

Every question has two option. Hence, the probability of getting a particular question right is \frac{1}{2}.

The probability that exactly n questions will be right is ^{50}C_n (\frac{1}{2} )^n (\frac{1}{2} )^{50 - n} = ^{50}C_n (\frac{1}{2} )^{50}.

The probability that at most 28 questions will be right is ∑^{50}C_n (\frac{1}{2} )^{50}, 0\leq n\leq 28.

Similarly, the probability that at least 30 questions will be right is ∑^{50}C_n (\frac{1}{2} )^{50}, 30\leq n \leq 50.

3 0
3 years ago
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