All categories

3 years ago

Please Hurry

Mathematics

1 answer:

fredd [130]3 years ago

8 0

It’s the second one

You might be interested in

Determine 30% of 70.<br><br><br> using double number line

Vadim26 [7]

Answer:

100% - 70

---------------------

30% - x

$100x=70*30\\100x=2100\\x=\frac{2100}{100}\\x=21$

3 0

3 years ago

The diagram shows a semi circle inside a rectangle of length 140m. the semi circle touches the rectangle at P, Q and R. Calculat

exis [7]

Answer: 250m

Step-by-step explanation:

Length of rectangle = 140m

Length of rectangle = diameter of semicircle = 140m

Therefore, Radius(r) = 140m / 2 = 70m

Perimeter of the shaded region:

Length of tangent at P + length of tangent at Q + shaded portion of arc(AB)

Length of tangent = diameter / 2

Length of tangent = 70m

Perimeter of a circle = 2πr = 2 × 22/7 × 70 = 440m

shaded portion = 440 / 4 = 110m

Therefore, perimeter of shaded portion equals

70m + 70m + 110m = 250m

4 0

3 years ago

Greg wants to pour 19.54 grams of salt into a container. So far, he has poured 17.89 grams. How much more salt should Greg pour?

mr_godi [17]

19.54-17.89=1.75
1.75 more g

5 0

3 years ago

Read 2 more answers

The formula for the area, A, of a circle is A = πr2 , where r is the circle’s radius, and the formula for the circumference, C,

Xelga [282]

A circle is a two-dimensional line that forms a closed loop, where every point on that loop is an equal distance from the center.[1] The circumference (C) of a circle is its perimeter, or the distance around it.[2] The area (A) of a circle is how much space the circle takes up or the region enclosed by the circle.[3] Both area and perimeter can be calculated with simple formulas using the radius or diameter of the circle and the value of pi.

5 0

3 years ago

The scientist creates an equation that models her data for each tree so that she can predict the diameter in the future. Complet

otez555 [7]

Answer:

y = 0.3X + 18.3

Step-by-step explanation:

Given that data :

x = year ;

y = trunk diameter, in inches

Year ________trunk diameter

1 __ 18.6

3 __ 19.2

5 __ 19.8

7 __ 20.4

9 ___21.0

11 __ 21.6

13 __ 22.2

Using the linear regression calculator :

The linear equation obtained is :

y = 0.3X + 18.3

Where ;

Slope = 0.3 ; intercept, c = 18.3

8 0

3 years ago