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3 years ago

Is 2x+5=10 an example of an expression? Why or why not? If not, what would you call it instead?

Mathematics

2 answers:

Murrr4er [49]3 years ago

5 0

Step-by-step explanation:

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serg [7]3 years ago

4 0

Answer:

No; equation

Step-by-step explanation:

2x+5 = 10 is not an expression rather it's an equation because it has an equal sign. An expression is a number, a variable, or a combination of numbers and variables and operation symbols. An equation is made up of two expressions connected by an equal sign.

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Solve |x+2|=10<br> Please help

Anvisha [2.4K]

x = 8, --- 12

I hope this helped :))))))))))))))))))

7 0

3 years ago

Read 2 more answers

3f+2g=30 and f+2g=26

tatuchka [14]

3f + 2g = 30 . . .(1)
f + 2g = 26 . . . .(2)

(1) - (2) => 2f = 4 => f = 4/2 = 2

From (2), 2 + 2g = 26 => 2g = 26 - 2 = 24 => g = 24/2 = 12

Therefore, f = 2 and g = 12

7 0

3 years ago

Margie is practicing for an upcoming tennis tournament. Her first serve is good 20 out of 30 times on average. Margie wants to k

mojhsa [17]

Answer:

0.6804

Step-by-step explanation:

Given that Margie is practicing for an upcoming tennis tournament. Her first serve is good 20 out of 30 times on average.

Since each trial is independent and there are two outcomes, X no of good serves is binomial with n=6 and p =2/3

Required probability

= Prob that atleast four of 6 times good serve

= $P(X\geq 4)$

= $P(x=4,5 or 6)\\=1-F(3)\\=0.6804$

Formula used:

P(X=r) = $6Cr (\frac{2}{3}^r )(\frac{1}{3}^{6-r} )$

7 0

2 years ago

Read 2 more answers

What can be used to show the difference in variation for two populations that have equivalent measures of center?

irakobra [83]

1. C

2. D

3. A

4. A

5. C

6. A

7. Do yourself

4 0

3 years ago

Division 54 /7.5 plz answer this

harkovskaia [24]

Answer:

turn the decimal into a whole number by multiplying by 10, 100 (what you do to one number you must do to the other)

multiply both by 10 it then becomes

540/75 = 7.2

it's easier to divide whole numbers and is the same answer as 54/7.5

6 0

3 years ago