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muminat
3 years ago
12

Simplify by combining like terms: 2x + 3x + 7​

Mathematics
2 answers:
DaniilM [7]3 years ago
7 0

Answer: 5x+7

Step-by-step explanation:

2x+3x+7

5x+7

vesna_86 [32]3 years ago
5 0

Answer:

\boxed{ \bold{ \huge{ \boxed{ \sf{5x + 7}}}}}

Step-by-step explanation:

\sf{2x + 3x + 7}

Like terms are those which have the same base.Only the coefficients of like terms can be added or subtracted

\longrightarrow{ \sf{5x + 7}}

Hope I helped!

Best regards! :D

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AURORKA [14]
Do you nean like square roots in math?
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3 years ago
Find the slope ( math )
Zigmanuir [339]

Answer:

(C) 7/2

Step-by-step explanation:

slope = y2-y1/x2-x1

8 0
3 years ago
A certain standardized test's math scores have a bell-shaped distribution with a mean of 530 and a standard deviation of 119. Co
kumpel [21]

Answer:

a) 68.2%

b) 31.8%

c) 2.3%

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 530

Standard Deviation, σ = 119

We are given that the distribution of math scores is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

a) P(test scores is between 411 and 649)

P(411 \leq x \leq 649)\\\\= P(\displaystyle\frac{411 - 530}{119} \leq z \leq \displaystyle\frac{649-530}{119})\\\\= P(-1 \leq z \leq 1)\\\\= P(z \leq 1) - P(z < -1)\\= 0.841 - 0.159 = 0.682 = 68.2\%

b) P(scores is less than 411 or greater than 649)

P(x < 411 < x, x > 649)\\=1 = P(411 \leq x \leq 649)\\=1 - 0.682\\=0.318 = 31.8\%

c) P(score greater than 768)

P(x > 768)

P( x > 768) = P( z > \displaystyle\frac{768 - 530}{119}) = P(z > 2)

= 1 - P(z \leq 2)

Calculation the value from standard normal z table, we have,  

P(x > 768) = 1 -0.977 = 0.023 = 2.3\%

5 0
3 years ago
15 POINTS AND BRAINLY FOR CORRECT ANSWER
hammer [34]

Answer:

The answer is 10.

Step-by-step explanation:

There would be 10 players, 2 for each group, and if each player played every other player twice, then that would mean that 20 matches of chess were played.

Hope this helped!! (:

4 0
3 years ago
What is 4.236 divided by 6
neonofarm [45]
0.706 is the answer to your problem
3 0
2 years ago
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