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3 years ago

Which equation can be used to find the measure of angle BAC?

Mathematics

2 answers:

asambeis [7]3 years ago

8 0

Answer:

Step-by-step explanation:

let angle $B$ . be $y$ then,

using angle sum property,

x+y+90=180 (angle c is 90 because its given)

hence you have the equation

Monica [59]3 years ago

6 0

Answer:

Cos() = AC / AB

So in this case: Cos() = 5 / 13

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Is 7/12 bigger than 1/2

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Whats half of 12? 6

Now, 7 is greater than 6, which means the fraction 7/12 is greater than 1/2

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You have exactly $120to spend on a new outfit.if your state has 8% sales tax, what is the highest pre-tax price you can pay with

mafiozo [28]

The highest pre-tax price I can pay =x
I suggest this equation:
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3 years ago

Marvin used apples to make apple bread the ratio of apples two loaves is 12:2.What is the equivalent fractions for five loaves o

nikklg [1K]

Try 6 X 2? Maybe this works

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3 years ago

Find the values of the measures shown when each value in the data set increases by 25. Mean: 109 Median: 104 Mode: 96 Range: 45

Vikki [24]

Answer:

The new values are as follows:

Mean: 134

Median: 129

Mode: 121

Range=45

Standard Deviation=3.6

Step-by-step explanation:

When a k real number is added to all the elements of the dataset, the new measures of center (mean, median, and mode) are simply found by adding the value k to the previous values. Thus

$Mean_{new}=Mean_{old}+k$

Here $Mean_{old}$ is 109 and k is 25 thus

$Mean_{new}=Mean_{old}+k\\Mean_{new}=109+25\\Mean_{new}=134$

Similarly

$Median_{new}=Median_{old}+k$

Here $Median_{old}$ is 104 and k is 25 thus

$Median_{new}=Median_{old}+k\\Median_{new}=104+25\\Median_{new}=129$

Also

$Mode_{new}=Mode_{old}+k$

Here $Mode_{old}$ is 96 and k is 25 thus

$Mode_{new}=Mode_{old}+k\\Mode_{new}=96+25\\Mode_{new}=121$

When a k real number is added to all the elements of the dataset, the new measures of variation (range and standard deviation) remain the same thus.

$Range_{new}=Range_{old}\\Range_{new}=45$

Similarly

$Standard\ Deviation_{new}=Standard\ Deviation_{old}\\Standard\ Deviation_{new}=3.6$

So the new values of mean, median, mode, range, and standard deviation are 134, 129, 121, 45, and 3.6 respectively.

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3 years ago