I’m guessing 8 is the radius so the formula is 2pi(r)
And when you plug in 8 into r you have 2pi(8)
When you solve it you should get 50.24
Can you pls mark brainleist
Answer:
Part 1) The radius of the circle is r=17 units
Part 2) The points (-15,14) and (-15,-16) lies on this circle
Step-by-step explanation:
step 1
Find the radius of the circle
we know that
The distance between the center of the circle and any point on the circle is equal to the radius of the circle
the formula to calculate the distance between two points is equal to
we have
(-7, -1) and (8, 7)
substitute
step 2
Find out the y-coordinate of point (-15,y)
The equation of the circle in standard form is equal to
where
(h,k) is the center
r is the radius
substitute the values
Substitute the value of x=-15 in the equation
square root both sides
therefore
we have two solutions
point (-15,14) and point (-15,-16)
see the attached figure to better understand the problem
Answer:
a) 34.64 inches
b) The TV will not fit inside the TV cabinet
Step-by-step explanation:
Angharad is buying a new 40-inch screen TV (remember that TV screens are measured along the diagonal )
a)If it is 20 inches tall, how wide is the screen ?
We solve using the formula:
Diagonal ² = Width² + Height²
Diagonal = 40 inches
Height = 20 inches
40² = Width² + 20²
Width² = 40² - 20²
Width = √40² - 20²
Width = √(1200)
Width = 34.641016151 inches
Approximately = 34.64 inches
b)Her TV cabinet is 30 inches wide .will the TV fit inside it ?
From the above calculation, the width of the TV = 34.64 inches
Hence the width of the cabinet has to be equal to or more than 34.64 inches
Hence, The TV will not fit inside the TV cabinet
<span>Step 1: Calculate how much fabric the Diva Clothing Factory used in a day.
</span> (149.4 yds ÷ 3 days = 49.8 yds/day)
Step 2: Calculate how much fabric the Chic Clothing Factory used in a day.
(166.8 yds ÷ 3 days = 55.6 yds/day)
<span>Step 3: Add the two amounts.</span>
(105.4 yds)
Answer: C
