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telo118 [61]
3 years ago
7

Write an expression that can be used to check the quotient of 646 ÷ 3

Mathematics
2 answers:
Sindrei [870]3 years ago
8 0
Use the inverse operation
S_A_V [24]3 years ago
5 0
3 times x equals to 646
3x=646

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Monica [59]

Answer:

b

Step-by-step explanation:

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8 0
3 years ago
What is the answer to this problem?
leonid [27]

Answer:

\frac{7}{9}

Step-by-step explanation:

If you add a number that is negative, you are basically subtracting it.

This means that

\frac{8}{9}+\left(-\frac{1}{9}\right)=\frac{8}{9}-\frac{1}{9}

Since they both have the same denominator, you can easily subtract the fractions: \frac{8-1}{9}=\frac{7}{9}

5 0
3 years ago
Help please
rusak2 [61]

Answer:

  • See below

Step-by-step explanation:

f(x) is quadratic function and g(x) is linear (since AP in the right column).

<u>Find the equation of the function f(x), use the points on the graph:</u>

  • f(x) = ax² + bx + c
  • c = 5 as the y-intercept is (0, 5)
  • a(-1)² + b(-1) + 5 = 0 ⇒ a + 5 = b
  • a(5²) + b(5) + 5 = 0 ⇒ 25a + 5b + 5 = 0 ⇒ 25a + 5a + 25 + 5= 0 ⇒ a = -1 ⇒ b= 4

<u>The function is:</u>

  • f(x) = -x² + 4x + 5

Find the equation of g(x)

<u>Find the slope of g(x):</u>

  • m = (1 - 7)/(-1 + 4) = -2

<u>Use (-4, 7) to find its equation:</u>

  • y - 7 = -2(x + 4)
  • y = -2x + 7 - 8
  • y = -2x - 1
<h3>See the required comparison below</h3>

<u>The y-intercepts:</u>

  • f(x) ⇒ 5,
  • g(x) ⇒ -1
  • -5 < - 1

<u>Values at x = 3:</u>

  • f(3) = -3² + 4(3) + 5 = 8
  • g(3) = -2(3) - 1 = - 7
  • 8 > 7

<u>Average rate of change in the interval [2,5]:</u>

  • f(x) ⇒ (0 - 9)/(5 - 2) = -3
  • g(x) ⇒ (-11 + 5)/ (5 - 2) = -2
  • -3 < -2

<u>Max of function in the interval [-5, 5];</u>

  • f(x) ⇒ 9, vertex of the function
  • g(x) ⇒ g(-5) = -2(-5) - 1 = 9, taken the least point of x as it is a decreasing function
  • 9 = 9
4 0
3 years ago
Read 2 more answers
Please help I’m not sure how to do this and I’m struggling
Alexeev081 [22]

1.1     Pull out like factors :

  -8x - 2  =   -2 • (4x + 1)

2.1    Divide both sides by  -2

Remember to flip the inequality sign:

2.2    Divide both sides by  4  

     x+(1/4)  ≥ 0

Solve Basic Inequality :

2.3      Subtract  1/4  from both sides

           x ≥ -1/4

8 0
3 years ago
Read 2 more answers
Please help me with this
Vitek1552 [10]

Answer:

A = 6.2831853071796 in^{2}

Step-by-step explanation:

Surface area of a capsule:A = 4πr2 + 2πrh.

A = 4πr2 + 2πrh. \\ a = 4\pi(0.5)2 + 2\pi(0.5)(1) \\  A= 6.2831853071796  \: in {}^{2}

3 0
2 years ago
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