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gtnhenbr [62]
3 years ago
10

alison surveyed a group of students at her school. she found that 155 students owned a cell phone, and 76 of those students owne

d a laptop as well. she also found that there were 35 students that do not own a cell phone, but own a laptop. seventeen students did not own either device. complete this two-way table to summarize the data.

Mathematics
1 answer:
emmasim [6.3K]3 years ago
7 0

Answer: laptop: 111

no laptop: 79 , 96

total: 52, 207

Step-by-step explanation: the comma’s i put in my answer stands for each blank but you were basically suppose to add and subtract in that question which is self explanatory

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F(x)=|x+3|-1 range and domain
KiRa [710]

Hey there! :)

Answer:

Domain: (-∞, ∞)

Range: [-1, ∞)

Step-by-step explanation:

This is an absolute-value function.  (Graphed below) The vertex is at (-3, -1) which consists of the minimum y-value of the function. Therefore:

Domain: (-∞, ∞)

Range: [-1, ∞)

8 0
3 years ago
Find the Total surface area of a cone if it's slant height is 21m and diameter of it's base is 24m.
kherson [118]
<h3><u>Answer :- </u></h3>

  • The total surfAce area of cone is <u>1244.57m².</u>

<h3><u>Step-by-step</u><u> </u><u>explanation</u><u> </u><u>:</u><u>-</u><u> </u></h3>

<u>To </u><u>find </u><u>:</u><u>-</u><u> </u>

  • The total surface area of cone..

<h3><u>Solution :- </u></h3>

Given that ,

  • The slant height of the cone = 21m.
  • Diameter of it's base = 24m.

<h3><u>♦</u><u> </u><u>Radius is </u></h3>

<u>=</u>> Diameter / 2

=> 24 / 2

=> 12m

<h3>As we know that , </h3>

<u>Total surface area of cone = πr ( r + L ) .</u>

<h3><u>Where</u><u> </u><u>we </u><u>know</u><u>,</u></h3>

  • π = 22/7
  • r = Radius ( radii )..
  • L = Slant height.

<h3>According to the question :- </h3>

The total surface of cone is,

<u>=> Total surface area = πr { r + L } ..</u>

=  \frac{22}{7}  \times 12 \times (12 + 21)

=  \frac{22}{7}  \times 12 \times 33

= (22 \times 12 \times 33) \div 7

= (726 \times 12) \div 7

= 8712 \div 7

= 1244.57 {m}^{2}

• Therefore , The total surface area of cone is <u>1244.57m².</u>

Hope this helps you :)

8 0
2 years ago
Read 2 more answers
Which unit rate is the lowest price per ounce?
Veseljchak [2.6K]
The unit rates are equal
3 0
3 years ago
Read 2 more answers
Find the area 11m 9m 15m 9.58m ( im not that smart lol)
Anettt [7]

Answer:

I believe it is 14226.3

Step-by-step explanation:

You didn't say what shape it is or which ones are length, width, etc. But to find area(in most cases) multiply all the dimensions together.

Hope this helps!

7 0
3 years ago
QUICKKK!!!!! PLEASEEEEEEEEEE
Valentin [98]

Answer:

10.29 (rounded = 10.30)

Step-by-step explanation:

X = a^2 + b^2 = c^2

X = 9^2 + 5^2 = c^2

X = (81) + (25) = c^2

X = 106 = c^2

X = √106 = c^2

X = 10.295630141 = c^2

X = 10.03 = c^2 (10.03 is 10.295630141 rounded to the nearest tenth)

5 0
3 years ago
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