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Anestetic [448]
2 years ago
7

Write the number that will make the equation true 15-8=__+1

Mathematics
1 answer:
Elis [28]2 years ago
7 0

Answer:

6

Step-by-step explanation:

15-8 =7 as LHS is 7 so RHS must also be 7 so at RHS 6+1 =7

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A particle moves along a straight line. The distance of the particle from the origin at time t is modeled by the equation below.
laiz [17]

Answer:

The value of t that will satisfy the equation is π/6 (which is 30 degrees)

Step-by-step explanation:

The function that models the movement of the particle is given as;

S(t) = 2 sin(t) + 3 cos (t)

Now we want to the value of t between 0 and pi/2 that satisfies the equation;

s(t) = (2+ 3√3)/2 = 1 + 3√3/2

What we do here is simply find that value of t that would ensure that;

2sin(t) + 3cos(t) = 1 + 3√3/2

Without any need for rigorous calculations, this value of t can be gotten by inspection.

From our regular trigonometry, we know that the sin of angle 30 is 1/2 and its cos value is √3/2

We can make a substitution for it in this equation.

We obtain the following;

2 sin(30) + 3cos (30) and that is exactly equal to 1 + 3√3/2

Do not forget however that we have a range. And the range in question is between 0 and π/2

Kindly that π/2 in degrees is 90 degrees

So our range of values here is between 0 and 90 degrees.

So to follow the notation in the question, the value within the range that will satisfy the equation is π/6

4 0
3 years ago
I am a number between 1 and 50. I am composite. I have 10 factors. My ones digit is a 6. What number am i
quester [9]
The number is 36 because 1,2,3,4,6,9,12,16,24,36 and that is 10 factors
5 0
3 years ago
Read 2 more answers
Find the common ratio of the sequence -172, -86, -43, -21.5
IRISSAK [1]
Common ratio means that you will be multiplying from the first number to get the second number.
To find the ratio we will work backwards, from right to left, and divide instead of multiply.
-43/-21.5 = 1/2
-86/-43= 1/2
-182/-86 = 1/2
r = 1/2
6 0
2 years ago
Use substitution to solve the system of equations.
Katarina [22]
The colution to your problem is a. (3,-6)

5 0
3 years ago
If using the method of completing the square to solve the quadratic equation, which number would have to be added to “complete t
Anna11 [10]
The answer is 80 because you add then subtract
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