3 years ago

Knowing that sin 30º = 1/2 what is a?

Mathematics

1 answer:

dimulka [17.4K]3 years ago

7 0

Answer:

Step-by-step explanation:

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A basketball court is in the shape of a rectangle. It has a length of (x - 7) meters and a width of (x + 3) meters:

Molodets [167]

Answer:

x2 - 4x - 21

Step-by-step explanation:

Area = (x -7 )(x +3)

= x*x - 7*x + x*3 - 7*3

=x2 - 4x - 21

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3 years ago

What is the simple interest for a principal of $650 invested at a rate of 9% for 5 years?

Ne4ueva [31]

Answer: 292.50 dollars

Work Shown:

P = 650 is the the principal.

r = 0.09 is the interest rate in decimal form.

t = 5 is the number of years.

i = P*r*t

i = 650*0.09*5

i = 292.50 is the simple interest.

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3 years ago

4x - 5y = 15<br> find the slope and y-intercept

Mazyrski [523]

Answer:

slope=4/5

y-intercept = -3

Step-by-step explanation:

first we need to rewrite the expression to

$y=mx+b$

were b is the y-intercept and m the slope

$4x-5y=15\\\\4x-5y+5y=15+5y\\\\4x+0=15+5y\\\\4x=5(3)+5(y)\\\\4x=5(3+y)\\\\\frac{1}{5}*4x= \frac{1}{5}*5(3+y) \\\\\frac{4x}{5}=3+y\\\\\frac{4x}{5} -3=3+y-3\\\\\frac{4x}{5} -3=y+0\\\\y=\frac{4x}{5} -3\\\\y=\frac{4}{5}x-3$

so there we have it

$m=\frac{4}{5} \\\\b=-3$

6 0

4 years ago

Almost done. I need help with this part

valentina_108 [34]

Answer:

$\%Percent = 14.3\%$

Step-by-step explanation:

Required

15 is what percentage of 105

To do this, simply divide 15 by 105 multiplied by 100%.

So, we have:

$\%Percent = \frac{15}{105} * 100\%$

$\%Percent = \frac{15*100}{105}\%$

$\%Percent = \frac{1500}{105}\%$

$\%Percent = 14.3\%$ --- approximated

8 0

3 years ago

What is the midpoint of the segment show below?

slega [8]

B is the answer because if u subtact both x and y

3 0

3 years ago

Read 2 more answers

Knowing that sin 30º = 1/2 what is a?​

Knowing that sin 30º = 1/2 what is a?