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sineoko [7]
3 years ago
14

PLEASE HELP SCHOOLS ALMOST OVER AND I NEED THIS

Mathematics
2 answers:
Mkey [24]3 years ago
5 0

Answer:

B

Step-by-step explanation:

The lower quartile ( first ) is the value at the left side of the box.

That is first quartile is 20 → B

jekas [21]3 years ago
4 0

Answer: A (10)

Step-by-step explanation:

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Multiply: (−3x − 6)(3x2 − 6x + 3)
zavuch27 [327]
The answer is -9 • (x + 2) • (x - 1)2
7 0
3 years ago
Read 2 more answers
7x &lt; 10<br> please solve
Anvisha [2.4K]

Answer: The answer would be  x < 10/7

Step-by-step explanation:

Rearrange:

Rearrange the equation by subtracting what is to the right of the greater than sign from both sides of the inequality :

                    7*x (10)>0

Step by step solution :

STEP

1

:

Pulling out like terms

1.1     Pull out like factors :

  7x - 10  =   -1 • (7x + 10)

Equation at the end of step

1

:

STEP 2

:

2.1   Multiply both sides by (-1)

Flip the inequality sign since you are multiplying by a negative number

     7x+10  < 0

2.2    Divide both sides by  7  

     x+(10/7)  < 0

Solve Basic Inequality :

2.3      Subtract  10/7  from both sides

           x < 10/7

Inequality Plot :

2.4      Inequality plot for

        7.000 x  - 10.000  >  0

 

One solution was found :

x < 10/7

4 0
2 years ago
What set does negative 4 belong to
Alenkinab [10]
It belongs to integers
6 0
3 years ago
3.) Simplify the expression.
Bogdan [553]

Answer:

Option C) -cosu is correct

Therefore the simplified expression is cos(u+\pi)=-cosu

Step-by-step explanation:

Given expression is cos(u+\pi)

To find the value of the given expression :

By using the formula cos(A+B)=cosAcosB-sinAsinB

Substitute A=u and B=\pi in the above formula we get

cos(u+\pi)=cosucos\pi-sinusin\pi

=cosu(-1)-sinu(0)  ( here cos\pi=-1 and sin\pi=0 )

=-cosu-0

=-cosu

cos(u+\pi)=-cosu

Therefore option C) -cosu is correct

Therefore the simplified expression is cos(u+\pi)=-cosu

6 0
3 years ago
A man is 26 years older than his son. After 10 years he will be 3 times as old as his son. Find their present ages.
Fed [463]
  • Answer:

<em>son = 3 years</em>

<em>man = 29 years</em>

  • Step-by-step explanation:

<em>Hi there !</em>

<em>m = man</em>

<em>s = son</em>

<em />

<em>m = s + 26</em>

<em>m + 10 = 3(s + 10)</em>

<em>replace m</em>

<em>(s + 26) + 10 = 3s + 30</em>

<em>26 + 10 - 30 = 3s - s</em>

<em>2s = 6</em>

<em>s = 3 years (son)</em>

<em>m = 3 + 26 = 29 years (man)</em>

<em>Good luck !</em>

5 0
3 years ago
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