All categories

2 years ago

PLS HELP ME UNDERSTAND THIS

Mathematics

2 answers:

Temka [501]2 years ago

8 0

Answer:

the answer as a decimal is -0.7

{put the given value of j and k in the given equation.. and solve ....}

denis23 [38]2 years ago

5 0

Answer:

0.45

Step-by-step explanation:

This question is asking you to find the value of the equation when j = -4 and when k = -0.7. To do this, we must substitute j with -4 and k with -0.7:

(-4 * -0.7 - 1) / -4

= (2.8 - 1) / 4

= (1.8) / 4

= 0.45

You might be interested in

What is the solution of the following system? x-y=11 -x+y=-11

lapo4ka [179]

Infinitely Many Solutions because is you simplify either one, you get the same equation as the other.

8 0

3 years ago

Simplify (3x2 − 2) + (5x2 + 5x − 1)

topjm [15]

5x+13 is the correct answer

4 0

3 years ago

Read 2 more answers

Solve the simultaneous equation: 2x - y= 2 3y= 4x - 5

Ronch [10]

Answer:

x = $\frac{1}{2}$ , y = $-1$

Explanation:

2x - y= 2

3y= 4x - 5

Make y the subject:

2x - y= 2

-y = 2 - 2x

y = 2x - 2 .........equation 1

3y= 4x - 5

y = (4x - 5)/3 ........equation 2

From equation 1 and 2 solve them simultaneously:

→ (4x - 5)/3 = 2x - 2

→ 4x - 5= 3(2x - 2)

→ 4x - 5 = 6x - 6

→ 6x - 4x = -5 + 6

→ 2x = 1

→ x = 1/2

if x is 1/2, then y: 2x - 2

→ 2(1/2)-2

→ -1

6 0

3 years ago

1. To prevent a driver with a suspended license from driving further, a person convicted of driving with an invalid license may

cricket20 [7]

Depending on the state, courts or state agencies have the power to suspend or revoke your license.

3 0

4 years ago

Read 2 more answers

For the right triangles below, find the exact values of the side lengths a and c. If necessary, write your responses in simplifi

alex41 [277]

Answer:

First triangle: $a = 5\sqrt{2}$ , second triangle: $c = \frac{8\sqrt{3}}{3}$

Step-by-step explanation:

In the first triangle, the value of $a$ is equal to the following trigonometric relation:

$a = \frac{5}{\cos 45^{\circ}}$

$a = \frac{5}{\frac{\sqrt{2}}{2} }$

$a = \frac{10}{\sqrt{2}}$

$a = \frac{10\sqrt{2}}{2}$

$a = 5\sqrt{2}$

In the second triangle, we obtain the value of $c$ is equal to the following trigonometric relation:

$c = 8\cdot \tan 30^{\circ}$

$c = 8 \cdot \left(\frac{\sin 30^{\circ}}{\cos 30^{\circ}} \right)$

$c = 8\cdot \left(\frac{\frac{1}{2} }{\frac{\sqrt{3}}{2} } \right)$

$c = \frac{8}{\sqrt{3}}$

$c = \frac{8\sqrt{3}}{3}$

8 0

3 years ago