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2 years ago

Please help! Numbers 16 & 17.. It will be much appreciated! :D

Mathematics

1 answer:

Dovator [93]2 years ago

6 0

In hours it would be : 15 * h miles (* means x times). D = r * t. Notice that hours cancel leaving miles, the distance. Including the units in your calculations can help prevent errors.

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2. Express each of the following as a rational number in the form of p/q Where q≠0

ANTONII [103]

Step-by-step explanation:

We need to find each of the following as a rational number in the form of p/q

(a) (3/7)² (b) (7/9)³ (c) (-2/3)⁴

Solution,

(a) (3/7)²

$(\dfrac{3}{7})^2=\dfrac{9}{49}$

(b) (7/9)³

$(\dfrac{7}{9})^3=\dfrac{7\times 7\times 7}{9\times 9\times 9}\\\\=\dfrac{343}{729}$

$(\dfrac{-2}{3})^4=\dfrac{-2\times -2\times -2\times -2}{3\times 3\times 3\times 3}\\\\=\dfrac{16}{81}$

Hence, this is the required solution.

4 0

2 years ago

Charity invests $1891 into a savings account. The account will accrue 9% interest to be compounded semiannually. Provided she ma

Norma-Jean [14]

Answer:

B) 12,010.9

Step-by-step explanation:

Set up an equation:

$A=1891(1+\frac{0.09}{2})^{2*21}$

Solve:

$A=1891(1.045)^{42}$

$A=12010.90488$

8 0

2 years ago

HELP ME ASAP NO FILES OR WILL REPORT!!! And help me BEFORE 3PM PLEASEEEE

Illusion [34]

Answer:

1) 18a^11

2) 7b^5

3) 16c^12

4) 3/2d^2

Step-by-step explanation:

i hope this helped

5 0

2 years ago

The point (-2,3) is the solution to a system of two linear equations. Which of the following can be one of the

Fynjy0 [20]

Answer:

We conclude that The point (-2, 3) satisfies the equation y = -x+1.

Hence, option B i.e. y = -x+1 is one of the equations of a system of two linear equations.

Step-by-step explanation:

Given

The point (-2, 3)

Checking option A

Given the equation

y = 3x-2

substitute x = -2 and y = 3

3 = 3(-2) - 2

3 = -6 - 2

3 = -8

FALSE!

L.H.S ≠ R.H.S

Thus,

The point (-2, 3) does not satisfy the equation y = 3x-2.

Checking option B

Given the equation

y = -x+1

substitute x = -2 and y = 3

3 = -(-2)+1

3 = 2+1

3 = 3

TRUE!

L.H.S = R.H.S

Thus,

The point (-2, 3) satisfies the equation y = -x+1.

Checking option C

Given the equation

y=x-1

substitute x = -2 and y = 3

3 = -2-1

3 = -3

FALSE!

L.H.S ≠ R.H.S

Thus,

The point (-2, 3) does not satisfy the equation y=x-1.

Checking option D

Given the equation

y=2x+3

substitute x = -2 and y = 3

3 = 2(-2)+3

3 = -4+3

3 = -1

FALSE!

L.H.S ≠ R.H.S

Thus,

The point (-2, 3) does not satisfy the equation y=2x+3.

Conclusion:

Thus, we conclude that The point (-2, 3) satisfies the equation y = -x+1.

Hence, option B i.e. y = -x+1 is one of the equations of a system of two linear equations.

4 0

2 years ago

My first letter is in place and also in circus

pickupchik [31]

Step-by-step explanation:

company

answer is company hope it helps

5 0

2 years ago

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