4 years ago

-12 - 8 - (-20) = A.0 B.16 C.-40 D.40

Mathematics

1 answer:

Katyanochek1 [597]4 years ago

7 0

-12 - 8 - (-20)
= -12 - 8 + 20
= -20 + 20
= 0

answer

A.0

You might be interested in

She bought 314yards of fabric. Her total cost was $13. What was the cost per yard?

Step2247 [10]

Answer:

$24.15 (answer is rounded)

Step-by-step explanation:

314/13= 24.15

I also used a calculator

5 0

3 years ago

NEED HELP

Reptile [31]

Answer:

B I'm pretty sure

Step-by-step explanation:

6 0

3 years ago

Q3. In a hydraulic lift, a 1400 N force is applied to a 0.5 m2 piston. Calculate the minimum surface area of the large piston to

blondinia [14]

Answer:

1.8m^2 approx

Step-by-step explanation:

Given data

P1= 1400N

A1=0.5m^2

P2=5000 N

A2=??

Let us apply the formula to calculate the Area A2

P1/A1= P2/A2

substitute

1400/0.5= 5000/A2

cross multiply

1400*A2= 5000*0.5

1400*A2= 2500

A2= 2500/1400

A2= 1.78

Hence the Area is 1.8m^2 approx

3 0

3 years ago

What is the inverse of A(r)=15+3r

mel-nik [20]

Answer:

A(r)=15-3r

Step-by-step explanation:

switch the sign of +3r to make it -3r

5 0

3 years ago

Solve for the following inequality: -7x - 15 <20

gregori [183]

Answer:

x>-5/7

Step-by-step explanation:

Because our dividing 5 by a negative 7 the symbol flips

3 0

3 years ago

Read 2 more answers