The fraction 3/8 is closest to which benchmark?

Claire has a hot tub with a diameter of 7 feet. She wants to purchase a cover to protect the hot tub. What is the area of the co

lara [203]

She needs to purchase a cover to protect the hot tub of an area of 38.5 square feet.

<h3>What is a circle?</h3>

It is a locus of a point drawn at an equidistant from the center. The distance from the center to the circumference is called the radius of the circle.

Claire has a hot tub with a diameter of 7 feet. She wants to purchase a cover to protect the hot tub.

The area of the circle is given by

$\rm Area = \dfrac{\pi}{4}d^2$

We have d = 7 ft, then the area of the circle will be

$\rm Area = \dfrac{3.14}{4}*7^2\\\\Area = 38.5 \ ft^2$

More about the circle link is given below.

brainly.com/question/11833983

5 0

2 years ago

is it always true that the y-values of a quadratic function have opposite signs on either side of a zero of the function? Explai

deff fn [24]

Answer:

It is true both sides have opposite signs

5 0

3 years ago

A jeweler has 5 rings, each weighing 18 g, made of an alloy of 10% silver and 90% gold. she decides to melt down the rings and a

ankoles [38]

Silver = 10%
Gold = 90%

Amount of gold to be deducted
90/100 × 18 = 16.2 g

75/100 × 18 = 13.5

16.2 - 13.5 = 2.7

Amount o silver to added.
2.7 × 5 = 13.5

Answer = 13.5 g

7 0

3 years ago

Plz help don’t understand

saul85 [17]

Answer:

Step-by-step explanation:

every time x goes up 1, y goes up 4

x = 3 minus x = 2 is a delta (a change of 1)

x = 4 minus x = 3 is a delta (a change of 1)

x = 5 minus x = 4 is a delta (a change of 1)

the delta x is ALWAYS 1 for this table you can always substract x's to find the delta delta is symbolized by Δ Δx for the delta x

y = 7 minus y = 3 is a delta (a change of 4)

y = 11 minus y = 7 is a delta (a change of 4)

y = 15 minus y = 11 is a delta (a change of 4)

the delta y is ALWAYS 4 for this table you can always substract y's to find the delta delta is symbolized by Δ Δy for the delta y

the slope m = Δy / Δx m = 4 / 1 m = 4

y = mx + b when x = 0 then y = b (called the y intercept)

so how do we find the y intercept?

look at the pattern in the TABLE Δx and Δy

when x = 1 y = (3 - 4) = -1

x = 0 y =( -1 - 4) = -5

so y = 4x - 5 is a line equation for the data in this table

I believe there are other forms for linear equations

I chose the y-intercept form

use the point slope equation

(y - y1) = m(x - x1) where (x1, y1) are the coordinates of a point on

the line

when you know the slope of the line and a point on the line

as before

m = (y2 - y1) / (x2 - x1) from the table

= (7 - 3) / (3 - 2) still equals

= 4/1 = 4

pick a point on the line say x= 4 and y = 11 (4, 11)

(y - y1) = m(x - x1)

y - 11 = 4(x - 4) point slope form

solving point slope form for y

y - 11 = 4x - 16 add 11 to both sides

y = 4x - 5 back to the y-intercept form

7 0

3 years ago

Nicole wants to know the height of the snow sculpture but its too tall to measure. Nicole measured the shadow of the snow sculpt

NeX [460]

Answer:

15 feet.

Step-by-step explanation:

We have been given that Nicole measured the shadow of the snow sculptures highest point to be 10 feet long. At the same time of day Nicole's shadow was 40 inches long. Nicole is five feet long.

We will use proportions to solve our given problem as proportions states that two fractions are equal.

$\frac{\text{The height of the snow sculpture}}{\text{The Height of shadow of snow sculpture}}=\frac{\text{Nicole's height}}{\text{Height of Nicole's shadow}}$