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Cerrena [4.2K]
4 years ago
7

Evaluate the following: −3 − (−8).

Mathematics
1 answer:
Scorpion4ik [409]4 years ago
8 0
In maths, a double negative is a positive, so -3 - -8 is the same as -3 + 8.
-3 +8 = 5
The answer is 5.
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Dafna11 [192]

Answer:

100

Step-by-step explanation:

suma todo para dar el resultado

7 0
3 years ago
If a and b represent positive real numbers, what is the inequality when solved for V?
Nutka1998 [239]

Answer:

C. v < (3au - 60)/2b

Step-by-step explanation:

Given

au/2 - bv/3 > 10

Required

Solve for v

We start by rewriting the inequality

au/2 - bv/3 > 10 becomes

½(au) - ⅓(bv) > 10

Multiply both sides by 6

6 * ½(au) - 6 * ⅓(bv) > 6 * 10

3au - 2bv > 60

Make -2bv the subject of formula

-2bv > 60 - 3au

Multiply both sides by -½

[When multiplying or dividing an inequality by a negative number, the sign of the inequality will change]

-½ * -2bv < -½(60 - 3au)

bv < -½(60 - 3au)

bv < ½(3au - 60)

bv < (3au - 60)/2

Divide both sides by b

v < (3au - 60)/2b

Option C is correct

8 0
4 years ago
1. Consider a cylinder with radius 4 cm and a height of 12 cm. Determine the volume of the given cylinder. Describe how to calcu
sergiy2304 [10]

↪Hola user_____________

⭐Here is Your Answer...!!!

____________________

↪SURFACE AREAS AND VOLUMES

↪The VOLUME of any object is nothing but the the capacity to hold the amount of substance inside it . It defines the Amount of substance that can occupied bythe object inside it ..

↪Volume = Base Area × Height

↪thus for the Cylinder ; Volume of cylinder = Pi(R^2) × H

↪thus volume = 3.14 × R^2 × H

↪thus here given as R = 4 cm and H = 12cm

↪Volume = 3.14 × 16 × 12= 602.88 cm^3

thus

↪the Volume of the Cylinder = 602.88 cm^3

______________________

⚓〽⭐

5 0
3 years ago
Read 2 more answers
If 100 miles is 20 in. What is the scale factor?
Alexxx [7]
The answer is C- 1in:5miles
4 0
3 years ago
Perimeter of a square is 256cm. what is its area<br><br><br>​
jenyasd209 [6]

Answer:

4096 cm²

Step-by-step explanation:

Perimeter of a square is given by the formula :

P = 4a

Now we substitute P To solve for a :

256 = 4a

a = 256÷4

a = 64

Area of a square is given by the formula :

A = a²

Now we substitute the value of a worked out from perimeter to work out the area :

A = 64²

A = 64×64

A = 4096

Units will be cm² as it is area

Hope this helped and have a good day

4 0
2 years ago
Read 2 more answers
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