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zepelin [54]
3 years ago
5

Hii please help i’ll give brainliest

Mathematics
2 answers:
ivanzaharov [21]3 years ago
6 0
C

1) 2.25
2) 0.35
3) -2.25
4) -0.25
Zepler [3.9K]3 years ago
3 0

Answer:

C- the third one

Step-by-step explanation:

It is the only one that shows the dot on -2

if this helps, brainliest, please?????

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At what values of x does the graph of f(x) = sin x intersect the x-axis?
kakasveta [241]

Step-by-step explanation:

n\pi \ \\

where n is an element of Integer

* the values of sinx intersects the x-axis when sinx=0

for example:

sin0°=sin180°=sin360°=0

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4 years ago
Multiplying (-9)(-6)(2)=
yawa3891 [41]

Answer:

108

Step-by-step explanation:

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3 years ago
A sample of 200 college freshmen was asked how many hours per week they spent playing video games. The following frequency distr
JulsSmile [24]

Answer:

\% Below\ 50 = 88 \%

\% 43\ or\ more = 17 \%

Step-by-step explanation:

Given

Total = 200

<em>The attachment presents the table properly</em>

Solving (a): Percentage of those who play for less than 50 hours weekly

To do this, we simply consider the frequency of students that fall within:

1.0 - 7.9, 8.0 - 14.9,......,43.0 - 49.9

Their frequency is:

Frequency = 21 + 37 + 40 + 27 + 23 + 18 + 10

Frequency = 176

The percentage is then calculated as:

\% Below\ 50 = \frac{Frequency}{Total} * 100\%

\% Below\ 50 = \frac{176}{200} * 100\%

\% Below\ 50 = \frac{176* 100}{200} \%

\% Below\ 50 = \frac{176* 1}{2} \%

\% Below\ 50 = \frac{176}{2} \%

\% Below\ 50 = 88 \%

Solving (b): Percentage of those who play for 43 or more hours weekly

To do this, we simply consider the frequency of students that fall within:

43.0 - 49.9,......,64.0 - 70.9

Their frequency is:

Frequency = 10 + 7 + 5+12

Frequency = 34

The percentage is then calculated as:

\% 43\ or\ more = \frac{Frequency}{Total} * 100\%

\% 43\ or\ more = \frac{34}{200} * 100\%

\% 43\ or\ more = \frac{34* 100}{200} \%

\% 43\ or\ more = \frac{34* 1}{2} \%

\% 43\ or\ more = \frac{34}{2} \%

\% 43\ or\ more = 17 \%

7 0
3 years ago
Find the values of x and y that satisfy the equation.<br><br> 4x+2i=8+yi<br> x= <br> and y=
stiks02 [169]

Answer:

The values of x and y that satisfy the equation are 2 and 2, respectively.

Step-by-step explanation:

Two complex numbers are identical if and only each pair of respective coefficients are identical on both sides. Then, we need to observe the following conditions:

Real component

4\cdot x = 8 (1)

Imaginary component

2 = y (2)

The solution of this system of equations is x = 2 and y = 2.

The values of x and y that satisfy the equation are 2 and 2, respectively.

5 0
3 years ago
Write 11/12 demoniator 84 to a equivalent fraction​
Pepsi [2]

Answer:

77/84

Step-by-step explanation:

84 ÷ 12 = 7

Multiply the numerator and denominator by 7

\frac{11}{12}=\frac{11*7}{12*7}=\frac{77}{84}

6 0
3 years ago
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