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3 years ago

If line AD is a tangent to circle B at point C, and m∠ABC = 55º, what is the measure of ∠BAD?

Mathematics

1 answer:

alexandr1967 [171]3 years ago

4 0

None of those. ∠BAD = 180º - 90º - 55º = 35º, because ABC is a right triangle.

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Kyle made a down payment of $850 towards his car loan. He will be paying $415 every month for 24 months.

Harrizon [31]

415x24=9,960+850=10,810

5 0

2 years ago

The difference of two numbers is 15. Five times the smaller is the same as 9 less than twice the larger. Find the numbers

Usimov [2.4K]

Answer:

x= -13

y= -28

Step-by-step explanation:

To find the two numbers, write a system of equations with x as one number and y as another:

x-y=15

5x=2y-9

Use substitution to substitute one equation into another. Then solve for the variable.

x=15+y into 5x=2y-9

becomes

5(15+y) = 2y-9

75+5y = 2y- 9

75+3y= -9

3y = -84

y= -28

To find x, substitute y= -28 into one equation.

x - (-28) = 15

x+28 =15

x = 15-28

x=-13

6 0

2 years ago

Find the circumference

tia_tia [17]

Answer:

$6.25\pi$

Step-by-step explanation:

A circumference of a circle can be determined by this: 2*pi*r

We're given the diameter. Divide that by 2 to get the radius.

6.45/2 = 3.225

Now multiply that by 2*pi. That gives us 2 * 3.14 * 3.225 = 20.253.

This could've also been done easier by doing pi*d where d is the diameter and you give the answer by multiplying them both. Also works, but the above formula is just key to many things and can also be used to derive the simpler one. Hope it helps! :)

7 0

1 year ago

Read 2 more answers

If cos 37 degrees is close to 4/5 which is closest the the measure of op?

alukav5142 [94]

$Cos(37)= \frac{adjacent}{hypothenuse} = \frac{4}{5}$
The hypotenuse is 5 unit and the adjacent side to the angle is 4 unit. We can find the other side using Pythagoras theorem

$\sqrt{5^{2}- (4^{2}) } = \sqrt{9}=3$

Hence the value of $sin(37)= \frac{opposite}{hypothenuse}= \frac{3}{5}$

6 0

2 years ago

Rita has the following data:

Lubov Fominskaja [6]

The range is the difference between the largest number and the smallest number. This means you subtract the smallest number from the largest number. If the range is 8, then you can add 8 to the smallest number on the list to get the largest number, m.
Our smallest number is 12, so add 8 to 12.
8 + 12 = 20, so m is 20.
I hope this helps!

8 0

3 years ago