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RoseWind [281]
3 years ago
15

[Giving Brainliest] (Please Help!!!) The table shows the number of practice problems completed in 30 minutes in three samples of

10 randomly selected math students.

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

Answer: C. a prediction based on the data is reliable, because the means of the samples are close together.

Step-by-step explanation:

lutik1710 [3]3 years ago
4 0

Answer:

B

Step-by-step explanation:

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Choose the correct simplification of the expression a2 ⋅ a3. a a6 a5 a−1
alina1380 [7]

Answer:  The correct option is (C) a^5.

Step-by-step explanation:  We are given to choose the correct simplification for the following expression :

P=a^2.a^3~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)

We will be using the following property of exponents :

x^a.x^b=x^{a+b}.

So, the simplification of expression (i) is as follows :

P\\\\=a^2.a^3\\\\=a^{2+3}\\\\=a^5.

Thus, the correct simplification of the given expression is a^5.

Option (C) is CORRECT.

3 0
3 years ago
Read 2 more answers
Can someone help me?
Phoenix [80]

Answer:

m∠R = 112°

m∠S = 112°

m∠T = 68°

Step-by-step explanation:

Quadrilateral QRST is a cyclic quadrilateral.

A <u>cyclic quadrilateral</u> is a quadrilateral drawn inside a circle where every vertex touches the circumference of the circle.  

The <u>opposite angles</u> in a cyclic quadrilateral sum to 180°.

⇒ m∠Q + m∠S = 180°

⇒ m∠R + m∠T = 180°

Given:

  • m∠Q = 68°
  • m∠R = (3x + 40)°
  • m∠T = (5x - 52)°

<u>Measure of angle Q</u>

⇒ m∠Q + m∠S = 180°

⇒ 68° + m∠S = 180°

⇒ m∠S = 180° - 68°

⇒ m∠S = 112°

<u>Measure of angles R and T</u>

⇒ m∠R + m∠T = 180°

⇒ (3x + 40)° + (5x - 52)° = 180°

⇒ )8x -12)° = 180°

⇒ 8x° = 192°

⇒ x = 24

Substituting the found value of x into the expressions for angles R and T:

⇒ m∠R = (3(24) + 40)°

⇒ m∠R = 112°

⇒ m∠T = (5x - 52)°

⇒ m∠T = 68°

7 0
2 years ago
Write the equation of the line, in standard form, that passes through the origin and is parallel to x + y = 6. Include your work
asambeis [7]
Ax+by=c
a=1 
b=1
slope= -a/b=-1
y=mx+b
y=-x+b
b=0
x+y=0
8 0
3 years ago
Need help with b and c
xz_007 [3.2K]

Answer:

Step-by-step explanation:

the formula is:

a_n = \frac{n+1}{n+2}

[tex]a_100 = \frac{101}{103}[\tex]

5 0
3 years ago
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Lcm of 8 and 15 Please!
FromTheMoon [43]

Since, 8 and 5 both are prime numbers u can simply multiply 8 and 15 to get your answer..

the ans is 120..

8 0
3 years ago
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