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Luda [366]
4 years ago
7

What’s -2.5 + 0.4f - 15 - 3 equal?

Mathematics
1 answer:
Alexxx [7]4 years ago
3 0

Answer:

-20.5+0.4

Step-by-step explanation:

add all the like terms :)

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Leonardo read that his reptile food should be given at a temperature of 72.5°F. He keeps the food in the freezer at –4°F. He has
-Dominant- [34]
It would take 9 hours for the reptile food to reach 72.5 degrees Fahrenheit. Hope this Helps!! :)
5 0
4 years ago
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1. From the statement select the related given statement.
solong [7]

1. Line l; point P not on l.( Take a line I and mark point P outside it or on the line.So from point P there are infinite number of lines out of which only one line is parallel to line I. Suppose you are taking point P on line I, from that point P also infinite number of lines can be drawn but only one line will be coincident or parallel to line I.

2. Plane R is parallel to plane S; Plane T cuts planes R and S.(Imagine you are sitting inside a room ,consider two walls opposite to each other as two planes R and S and floor on which you are sitting as third plane T ,so R and S are parallel and plane T is cutting them so in this case their lines of intersect .But this is not possible in each and every case, suppose R and S planes are parallel to each other and Plane T cuts them like two faces of a building and third plane T is stairs or suppose it is in slanting position i.e not parallel to R and S so in this case also lines of intersection  will be parallel.

3. △ABC with midpoints M and N.( As you know if we take a triangle ABC ,the mid points of sides AB and AC being M and N, so the line joining the mid point of two sides of a triangle is parallel to third side and is half of it.

4.Point B is between points A and C.( Take a line segment AC. Mark any point B anywhere on the line segment AC. Three possibilities arises

(i) AB > BC (ii) AB < BC  (iii) AB = BC

Since A, B,C are collinear .So in each case  AB + BC =AC

5 0
4 years ago
Read 2 more answers
A FEW MATH QUESTIONS ! PLEASE EXPLAIN ANSWERS ! (:
7nadin3 [17]

answers

1) 70

2) 3,840

3) 24

4) 72


<u>Explanation</u>

Q1

The surface area of a cone is given by;

S.A = 2Πrl + Πr²

Where r is the radius of the base and l is the lateral height.

Πr² = area of the base = 20 in²

2Πrl = Area of the lateral surface

         = 2.5 × 20

          = 50

Area of the cone = 50 + 20

                            = 70 in²

Q2

The sides of the Pythagorean triangle with legs of 12 and 16.

The 3rd side will be;

c = √(12² + 16²)

  = √400 = 20

Volume = 12 × 16 × 20

              = 3,840

Q3

The volume of a cone is given by;

volume = 1/3 Π r² h

This shows that the volume of a cone is a third the volume of the cylinder.

∴ Volume of the cylinder = 12 × 3

                                            = 24 ft³

Q4

The volume of any regular figure is;

Volume = base area × height

When the dimensions area usually 3. Let these dimensions be x, y and z.

∴ volume  = x × y × z = 9

  Doubling the dimensions;

Volume = 2x × 2y × 2z = 2 × 2 × 2 × 9

             = 8 × xyz = 8 × 9

             = 72 ft²



3 0
4 years ago
Read 2 more answers
tyree and freinds go to the movies each person buys a movie ticket for $7 a snack for $5 and a drink for $2 write an expression
irina [24]
7*5*2=70 the total cost
7 0
3 years ago
I can't figure it out ​
Strike441 [17]

Answer:

\Huge\boxed {v=17360³}

Step-by-step explanation:

● formulas of valume = πr²h

  • 22/7×12×12×38•4 ft
  • 3•14×144×38•4 ft
  • 452•16×38•4 ft
  • 17362•944 ft³

● now nearest to the number

  • 17262•944 ft³ nearest tenth is 17360ft³.

Hope it's helps you

4 0
3 years ago
Read 2 more answers
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