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Brrunno [24]
3 years ago
11

An equation is shown.

Mathematics
1 answer:
lubasha [3.4K]3 years ago
3 0
<span>2(a+b)=c
2a + 2b = c
2b = c - 2a
  b = (c - 2a)/a

answer
</span><span>D. b = (c−2a)/2 ; distribute 2 to get 2a+2b, subtract 2a, then divide by 2.</span>
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y = x2 - 6x - 8 Complete the square in the quadratic equation in order to write the equation in vertex form.
Airida [17]

Answer:

y = (x-3)^2 - 17

Step-by-step explanation:

To complete the square, take the middle term bx and divide it in two. Then take the square.

x^2 - 6x - 8 has bx = -6x. Take -6/2 = -3. Square -3^2 = 9.

Now to finish completing the square add 9 and subtract 9 from one side.

y = x^2 - 6x - 8

y = (x^2 - 6x +9) -9 - 8

y = (x-3)^2 - 17

8 0
3 years ago
Two cyclists, 112 miles apart, start riding toward each other at the same time. One cycles 3 times as fast as the other, and the
Iteru [2.4K]

Answer:

Speed of a= 21 miles/hr

r = Speed of b= 7 miles/hr

Speed of a = 3r

Step-by-step explanation:

The cyclist are 112 miles apart

Time traveled by two = 4 hours

Speed of a = 3 * speed of b

If a cylcles 3 times More than b, then a will cover 3*distance of b

But speed = distance/time

Time = 4hours

Total distance=112

a = 3b

3b + b = 112

4b = 112

b = 112/4

b = 28 miles

a = 3b

a = 3*28

a = 84 Miles

They bought traveled 4 hours

Speed of a = 84miles/4 hours

Speed of a= 21 miles/hr

Speed of b = 28miles/4 hours

Speed of b = 7 miles/hr

5 0
3 years ago
What is rational number and arithmetic number​
Oduvanchick [21]

\huge \mathtt \blue{answer}

Here, “p” is a numerator and “q” is a denominator. The examples of rational numbers are 6/5, 10/7, and so on. The rational number is represented using the letter “Q”. Like real numbers, the arithmetic operations, such as addition, subtraction, multiplication, and division are applicable to the rational numbers.

5 0
3 years ago
What is 3 to the power of -4 as a fraction?
ivolga24 [154]
The answer is 1/81 :)
3 0
3 years ago
Read 2 more answers
PLEASE HELP!!! THIS IS MY LAST QUESTION!! ASAP!!
aleksandr82 [10.1K]

Answer:

In order of what is shown on the pic:

- Trinomial

- Monomial

- Trinomial

- Binomial

- Polynomial with four terms

Step-by-step explanation:

Again, in the same order as above:

1. The first has three terms, making it a trinomial

2. 7x^2 - 7x^2 +4x

The 7x^2 cancels out and we are left with only 4x

Since there is one value, it is a monomial

3. This one has three terms, making it a trinomial

4. This one has two terms, making it a binomial

5. The last one has four terms, making it a polynomial with four terms.

8 0
2 years ago
Read 2 more answers
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