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2 years ago

Find BC. PLEASEEE HELP

Mathematics

1 answer:

Cerrena [4.2K]2 years ago

3 0

Answer:

Concept: Geometric Identities

We want BC
We will use geometric identities to get our value
We have BA and AC and angle !A
Hence arccos(89)= 21/x
Hence X=25 km B

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2 years ago

Suppose y varies directly with x. If y = –20 when x = 2, find y when x = 14

Natasha_Volkova [10]

Answer:

y = -140

Step-by-step explanation:

Y varies directly with x

y = kx

We know y = -20 when x =2, we can solve for k

-20 = k*2

Divide each side by 2

-20/2= 2k/2

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Now we want to find y when x = 14

y = -10 *14

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3 years ago

Read 2 more answers

Last month in the village of 125 people we’re issued a parking ticket. This month only 83 people were issued one. What was the p

natita [175]

Answer:

the percent reduction is 33.6% and the number of people who were issued a parking ticket are 42.

Step-by-step explanation:

Given:

Last month in the village of 125 people were issued a parking ticket.

This month only 83 people were issued one.

Now, to find the percent reduction from this month to last month and the number of people who were issued a Parking ticket.

So, the reduction of the number of people who were issued a Parking ticket from this month to last month are:

125 people - 83 people = 42 people.

Thus, 42 people reduction from this month to last month.

Now, to get the percent reduction:

$\frac{42}{125}\times 100.$

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Therefore, the percent reduction is 33.6% and the number of people who were issued a parking ticket are 42.

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3 years ago

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Then you use the formula
y = mx + b
you plug in your values from the point and the new slope.
(1,5) with new slope m
5= 10(1)+b
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then make your new equation
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2 years ago

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Tomtit [17]

Answer:

Step-by-step explanation:

1.5r - 3r + 10.5r

10.5r + 1.5r = 12r

12r - 3r = 9r

Final Answer = 9r

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2 years ago