Which expressions are equivalent to 4(3j+(-4))-94(3j+(−4))−94, (, 3, j, plus, (, minus, 4, ), ), minus, 9 ? Choose all answers t
Rudik [331]
Answer:
Option B)
Step-by-step explanation:
We are given the following expression in the question:
Evaluating the given expression:
If we rearrange the given expression, we get,
Thus, the correct answer is:
Option B)
Answer:
The time to complete the job is given by the expression below:
Where T = time it takes to wash all the windows
x = the number of workers assigned to the job
Step-by-step explanation:
The proportionality can be represented below as:
T ∝
T = -------------------- Equation 1
Where K is the constant of proportionality
Considering the given instance,
When T = 6, x = 4
6 =
K = 4 × 6
K = 24
Substituting the value of K into Equation 1,
T =
You round to the nearest tenth if the decimal goes to the thunders place or futher out
Answer:
x = - 4 and x = 9
Step-by-step explanation:
Given
x² - 36 = 5x ( subtract 5x from both sides )
x² - 5x - 36 = 0
Consider the factors of the constant term (- 36) which sum to give the coefficient of the x- term (- 5)
The factors are - 9 and + 4, since
- 9 × 4 = - 36 and - 9 + 4 = - 5, thus
(x - 9)(x + 4) = 0
Equate each factor to zero and solve for x
x - 9 = 0 ⇒ x = 9
x + 4 = 0 ⇒ x = - 4
Answer:
Y=40
X=67
Step-by-step explanation:
In a cross line problem, one part of the cross, (such as 63°) is always the same on the other side. (like y+23° and 63°. This means Y=40 because 40+23 is 63.
To find x, you must know that 360° is all the way around in degrees. you know that 126° (63 +63) is already taken up. So you subtract 126 from 360 and then multiply the answer by 1/2 because you trying to find the bottom total.(360-126)=234(1/2)= 117 Lastly, you find X in the equation 2x-17=117.
x=67