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3 years ago

Find x. Pls helppppppp

Mathematics

1 answer:

yuradex [85]3 years ago

3 0

Step-by-step explanation:

Angles DEC and DFC are both 90°, therefore DC is the diameter of the circle.

That makes angle DBC = 90° as well, so x = 90.

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You have $192.00 to buy T-shirts for a club. A T-shirt costs $12.00. Which inequality represents the number x of T-shirts you ca

Vaselesa [24]

Answer:

X is less than or equal to 16

Step-by-step explanation:

8 0

3 years ago

Ella invested $2,700 in an account paying an interest rate of 5.4% compounded

Dmitry [639]

Answer:

The account will take 7 years to reach a value of $4,020

Step-by-step explanation:

Compound Interest

When it occurs interest in the next period is then earned on the principal sum plus previously accumulated interest.

The formula is:

$A=P\left(1+{\frac {r}{n}}\right)^{nt}$

Where:

A = final amount

P = initial principal balance

r = interest rate

n = number of times interest applied per time period

t = number of time periods elapsed

Ella invested P=$2,700 in an account with an interest rate of r=5.4% (0.054) compounded monthly. Since there are 12 months in a year, n=12.

It will be calculated when will the account have a value of A=$4,020. Substituting all the values in the formula:

$4,020=2,700\left(1+{\frac {0.054}{12}}\right)^{12t}$

Calculating:

$4,020=2,700\left(1.0045)^{12t}$

Dividing by 2,700:

$\frac{4,020}{2,700}=\left(1.0045)^{12t}$

To solve this equation for t, we need to apply logarithms:

$\log\frac{4,020}{2,700}=\log\left(1.0045)^{12t}$

Applying the logarithm power rule:

$\displaystyle \log\frac{4,020}{2,700}=12t\log 1.0045$

Dividing by 12log 1.0045:

$\displaystyle t=\frac{\log\frac{4,020}{2,700}}{12\log 1.0045}$

Calculating:

t= 7.39 years

Rounding to the nearest year, the account will take 7 years to reach a value of $4,020

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3 years ago

Read 2 more answers

Jose plans to watch 3 movies each month. Write an equation to represent the total number of movies n that he will watch in m mon

Ostrovityanka [42]

I think that the answer to this is: n X m

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3 years ago

calculate the distance between the two points shown on the graph below give your answer correct to 2 decimal places if necessary

GenaCL600 [577]

Answer:

Find the distance between (-1, 1) and (3, 4).

This problem is solved simply by plugging our x- and y-values into the distance formula:

D=(3−(−1))2+(4−1)2−−−−−−−−−−−−−−−−−−√=

=16+9−−−−−√=25−−√=5

Sometimes you need to find the point that is exactly between two other points. This middle point is called the "midpoint". By definition, a midpoint of a line segment is the point on that line segment that divides the segment in two congruent segments.

If the end points of a line segment is (x1, y1) and (x2, y2) then the midpoint of the line segment has the coordinates:

(x1+x22,y1+y22)

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3 years ago

What is the midpoint between (-1,1) and (-5,12)

natali 33 [55]

(-3, 23/2)

the picture i linked shows the step by step

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3 years ago