1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alexxx [7]
3 years ago
12

HELP

Mathematics
2 answers:
Anvisha [2.4K]3 years ago
8 0

Answer: C) Bumblebee is closer to sea level than Honeybee.

Step-by-step explanation:  If you were to draw this out on a number line, -52 would be closer to 0 than -80.

kap26 [50]3 years ago
4 0

Answer: Esy the answer is; C.

Step-by-step explanation:

The higher the negative value the less or lower the number is.

CONFUSING Right? XD

You might be interested in
The manufacturer of hardness testing equipment uses​ steel-ball indenters to penetrate metal that is being tested.​ However, the
kumpel [21]

Answer:

Check the explanation

Step-by-step explanation:

Let X denotes steel ball and Y denotes diamond

\bar{x_1} = 1/9( 50+57+......+51+53)

=530/9

=58.89

\bar{x_2}= 1/9( 52+ 56+....+ 51+ 56)

=543/9

=60.33

difference = d =(60.33- 58.89)

=1.44

s^2=1/n\sum xi^2 - n/(n-1)\bar{x}^2

s12 = 1/9( 502+572+......+512+532) -9/8 (58.89)2

=31686/8 - 9/8( 3468.03)

=3960.75 - 3901.53

=59.22

s1 = 7.69

s22 = 1/9( 522+ 562+....+ 512+ 562) -9/8 (60.33)2

=33295/8 - 9/8 (3640.11)

=4161.875 - 4095.12

=66.75

s2 =8.17

sample standard deviation for difference is

s=\sqrt{[(n1-1)s_1^2+ (n2-1)s_2^2]/(n1+n2-2)}

 = \sqrt{[(9-1)*59.22+ (9-1)*66.75]/(9+9-2)}

= \sqrt{1007.76/16}

=7.93

sd = s*\sqrt{(1/n1)+(1/n2)}

=7.93*\sqrt{(1/9)+(1/9)}

=7.93* 0.47

=3.74

For 95% confidence level Z (\alpha /2) =1.96

confidence interval is

d\pm Z(\alpha /2)*s_d

=(1.44 - 1.96* 3.75 , 1.44+1.96* 3.75)

=(1.44 - 7.35 , 1.44 + 7.35)

=(-2.31, 8.79)

There is sufficient evidence to conclude that the two indenters produce different hardness readings.

3 0
3 years ago
What is 2/5 + + 2/5 + 2/5<br> (2/5 times 3)<br><br> Ty
yuradex [85]

Answer:

6/5 or 1 1/5

Step-by-step explanation:

2/5 + 2/5 + 2/5 = 6/5 or 1 1/5

This is the same as multiplying 3 x 2/5 = 6/5 or 1 1/5

3 0
2 years ago
Read 2 more answers
N+ 12 = -24<br><br> Help please
omeli [17]

Answer:

n = -36

Step-by-step explanation:

The answer is -36 because:

1) We first have to subtract -24 and 12 to find n

-24 - 12 = -36

This is because whenever there are two negative signs, multiply it.

Negative x Negative = Positive

We have to do, 24 + 12 which is 36. Finally, we just put the greater number's sign to the answer. 24 is greater than 12, therefore, we put a negative sign before 36.

Hope this helps!

7 0
3 years ago
Concession stand sales for each game in season are $320, $540, $230, $450, $280, and $580. What is the mean sales per game? Expl
Alex_Xolod [135]

Answer:

$400

Step-by-step explanation:

all you do is add 320+540+230+450+280+580/6 and the asnwe comes out to 400

4 0
3 years ago
How to solve. Y=-4(x-2)squared+4
Amiraneli [1.4K]
What do you mean, "solve"?
y = -4(x-2)² + 4 
the line is a parabol with a maximum (2;4)
it's roots are  -4(x-2)² + 4  = 0 => (x-2)² = 1 => x-2 = 1 => x = 3
                                                              => x-2 = -1 => x = 1 
symetrical axe: x = 2
is that all you need?

3 0
3 years ago
Other questions:
  • In a triangle ABC if angle a = 60 °,angle<br> b= 60° then find c​
    9·1 answer
  • The length of a rectangle is 2 more than 5 times its width. The perimeter of the rectangle is 88 inches. What is the length of t
    15·1 answer
  • What is the standard form equation of 4x+7¥=11
    6·1 answer
  • (12 × 6) × 10 Which of the following is equal to the expression listed above? A. (12 × 6) + 10 B. (12 × 6) × (6 × 10) C. 12 × (6
    13·1 answer
  • Please help and show work please and thank you ! :) I’ll give brainliest
    13·1 answer
  • Answer please! i will give brainliest !!!!
    6·2 answers
  • Please help me asap (geometry)
    13·1 answer
  • 7n +2 –(2n +7) pls help I will give you 15 points
    11·1 answer
  • 3x-5=16<br> find x pls hurry
    13·1 answer
  • A,b,c or d between what two intergers
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!