What is negative 7 minus negative 4

Mathematics

2 answers:

Nimfa-mama [501]3 years ago

3 0

Answer:

-7-(-4)= -3

Step-by-step explanation:

Subtracting a negative number from a negative number – a minus sign followed by a negative sign, turns the two signs into a plus sign. So, instead of subtracting a negative, you are adding a positive.

Naddik [55]3 years ago

3 0

Hey! A minus sign followed by a negative sign turns the two signs into plus signs. -7 -(-4) would ultimately be -11.

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How do I do this question

Alekssandra [29.7K]

We know that
circumference=2*pi*r
for r=65/2----> r=32.5 cm
circumference=2*pi*32.5-----> 204.1 cm
so
one revolution <span>of Emma’s bicycle</span> is equal to 204.1 cm-----> 2.041 m
3.2 km-------> 3200 m
1 revolution---------> 2.041 m
x rev------------> 3200 m
x=3200/2.041 ----> x=1567.86 revolutions

the answer is
1567 complete revolutions

3 0

3 years ago

Helppp(◕દ◕)

Aleksandr-060686 [28]

Answer:

13 cm

Step-by-step explanation:

Use Pythagora's theorem to solve for the hypotenuse of the triangle:

$a^2+b^2=c^2$