A number b decreased by 14, how would you write this in a equation ?

Mathematics

1 answer:

Alex73 [517]3 years ago

5 0

Answer:

b-14

Step-by-step explanation:

Subtraction is decreasing a number so if b is decreasing by 14 you would write that as b-14

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15 degrees in 2 hours.

alekssr [168]

Answer:

Step-by-step explanation: it’s 37 rn

8 0

3 years ago

A particle moves along the x-axis so that at time t≥0t\ge 0t≥0 its position is given by x(t)=−t3+6t2−9t+42.x(t)=-t^3+6t^2-9t+42.

riadik2000 [5.3K]

Answer: 4 units

Step-by-step explanation:

The given position function: $x(t)=-t^3+6t^2-9t+42.$ , where t≥0.

To determine: Total distance traveled by the particle from 0≤ t ≤ 4.0.

At t=0,

$x(0)=-(0)^3+6(0)^2-9(0)+42=42\\$

At, t=4,

$x(4)=-(4)^3+6(4)^2-9(4)+42\\\\=-64+6(16)-36+42=38$

Total distance traveled by the particle from 0≤ t ≤ 4.0 = |42-38| units

= 4 units

Hence, the distance traveled by the particle from 0≤t≤4.0 is 4 units.

4 0

3 years ago

Three circles can intersect in?

abruzzese [7]

9514 1404 393

Answer:

(a) two points

Step-by-step explanation:

The curve of a circle can only intersect another circle at a point or in an arc. The intersection will only be an arc if the circles have the same center and radius (are the same circle).

Different circles can only intersect each other at one or two points. Three different circles can intersect in one or two points. The 2-point case is shown in the attachment.