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Gnesinka [82]
2 years ago
7

-8 ( r + 6 ) = 7 ( r + 6 ) solve the equation

Mathematics
1 answer:
tangare [24]2 years ago
5 0


r=-6  

You have to use distributive property and multiply parentheses

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Solve for x: 1/2 (10x+6)=-2x+10
pickupchik [31]

Answer: x = 1

Step-by-step explanation:

substitute 1 for x

1/2(10(1)+6) = -2(1)+10

1/2(10+6) = -2+10

5+3 = -2+10

8=8

8 0
2 years ago
Evaluate each expression if a = 3 , b = 5 and c=1 b-c
Nezavi [6.7K]

Answer:

4

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Step-by-step explanation:

<u>Step 1: Define</u>

a = 3, b = 5, c = 1

b - c

<u>Step 2: Evaluate</u>

  1. Substitute:                      5 - 1
  2. Subtract:                         4
7 0
2 years ago
the probability of rolling a number less than 3 on a number cube is 2/6. Jennifer rolls 60 times. how many times should Jennifer
saveliy_v [14]

Answer:23

Step-by-step explanation:

7 0
3 years ago
The table shows the time y (in minutes) it takes to make x burritos. A- graph B- how long does it take to fix 7 burritos
DedPeter [7]

Answer:

5.25 minutes

Step-by-step explanation:

7 * 0.75 = 5.25

5 0
2 years ago
(Algebra II) Standard Form of a Quadratic Function - I'm having trouble with two questions on this quiz? Please don't just give
anastassius [24]
1.
the x value of the vertex in form
ax^2+bx+c=y
is
-b/2a
so

-2x^2+8x-18
x value of vertex is
-8/(2*-2)=-8/-4=2

plug it in to get y value
-2(2)^2+8(2)-18
-2(4)+16-18
-8-2
-10

vertex is at (2,-10)
or you could complete the square to get into y=a(x-h)^2+k, where the vertex is (h,k)
so as follows
y=(-2x^2+8x)-18
y=-2(x^2-4x)-18
y=-2(x^2-4x+4-4)-18
y=-2((x-2)^2-4)-18
y=-2(x-2)^2+8-18
y=-2(x-2)^2-10
vertex is (2,-10)






5.
vertex is the time where the speed is the highest
at about t=10, the speed is at its max
6 0
3 years ago
Read 2 more answers
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