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Nana76 [90]
3 years ago
6

write a two step equation that involves multiplication and subtraction, includes a negative coefficien, and has a solution of x=

7
Mathematics
1 answer:
laiz [17]3 years ago
6 0
-60x+20 = -400
x equals 7
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Simplify -3d^8(-4d^-14). Assume d =/ 0​
Alenkinab [10]

Answer:

\frac{12}{d^6}

Step-by-step explanation:

-3d^8\left(-4d^{-14}\right)

Double negative = Positive:

3d^8*4d^{-14}

Apply negative exponent formula:

3*d^8*4*\frac{1}{d^{14}}

Multiply:

\frac{12d^8}{d^{14}}

Apply exponent rule: \frac{x^a}{x^b}=\frac{1}{x^{b-a}}

Thus, \frac{12}{d^{14-8}}

Simplify:

\frac{12}{d^6}

8 0
2 years ago
The diameter of a circle is 38 yards. What is the circle's circumference? d=38 yd Use 3.14 ​
vazorg [7]

Answer:

Answer: 119.32

Step-by-step explanation:

To find circumference you must do diameter × pi or radius × 2 × pi sense we are given the diameter its easy peasy so we can just do 38 × pi so... 38 × 3.14 = 119.32 so 119.32 is the cirmcumfrence Hope that helps!!

4 0
3 years ago
Read 2 more answers
2. Dr. Scott bought 3 pound of oranges for $1.50. How much would 7
n200080 [17]

Do 1.50 divided by 3 to get the unit price.

6 0
3 years ago
The point (1, −1) is on the terminal side of angle θ, in standard position. What are the values of sine, cosine, and tangent of
defon
The abscissa of the ordered pair, that is the x-coordinate, is equal to 1 and the ordinate, the y-coordinate, is equal to -1. In the cartesian plane, this point lies in the fourth (IV) quadrant. The standard position of the angle is that which has one of its side is in the x-axis.

Solve for the hypotenuse of the right triangle formed.
           h = sqrt((-1)² + (1)²) = √2
Below items show the calculation for each of the trigonometric functions.

 sin θ = opposite/hypotenuse = y/h = (-1)/(√2) = -√2/2
 cos  θ = adjacent/hypotenuse = x/h = (1)/√2 = √2/2
tan θ = opposite/adjacent = y/x = -1/1 = -1
7 0
3 years ago
How many solutions are there to the equation below?<br>12x + 32 = 12X-7​
Greeley [361]

Answer: no solutions

Step-by-step explanation:

12x+32=12x-7

12x-12x=-7-32

0x=-39

No solutions

5 0
3 years ago
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