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Minchanka [31]
3 years ago
11

Which expression is equivalent to (3b + 2r) + (4b + r)?

Mathematics
2 answers:
Mice21 [21]3 years ago
4 0

(3b + 2r) + (4b + r)

3b+4b +2r+r

7b +3r

Choice B


solong [7]3 years ago
3 0

Answer:

its b

Step-by-step explanation:

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How to rewrite the expression. With the steps. Use an exponent, rather than repeated multiplication. (–4)(–4)
Nadusha1986 [10]

For this case we have the following expression:

(-4) (- 4)

Using law of exponents we have:

(a ^ m) (a ^ n) = a ^ {m + n}

We use the definition to rewrite the given expression

Rewriting we have:

(-4) (- 4) = (- 4)^{ 1 + 1}\\(-4) (- 4) = (- 4) ^ 2

Answer:

The rewritten expression is given by:

(-4) (- 4) = (- 4) ^ 2

4 0
4 years ago
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I really need help with this. This is for AP Calculus. I just need to find the derivative for this function.
lesantik [10]

Answer: 40x^4 + 56x^3 − 16x − 14

Step-by-step explanation:

1. For any two functions, the derivative of the product of two functions is the first function times the derivative of the second plus the second function times the derivative of the first.

2. The derivative of a polynomial is the sum of the derivatives of its terms. The derivative of a constant term is 0.

3. Simplify

4. Multiply 4x^2 + 7x^1 times 6x^2

5. Multiply 2x^3 - 2 times 8x^1 + 7x^0

6. To multiply powers of the same base, add their exponents.

7. Simplify

8. Combine like terms

9. For any term t, t^1 = t

10. For any term t except 0, t^0 = 1

5 0
2 years ago
Pythagorean
nata0808 [166]

Answer:

5√3 ft

Step-by-step explanation:

If the ladder is 10ft tall, then that represents the hypotenuse. If the foot of our ladder is 5ft away from the wall, that is a side length that we know. Using the Pythagorean Theorem, a²+b²=c², where a and b are side lengths of a right triangle, and c is the hypotenuse, we can solve for the missing side length:

a²+b²=c²

(5)²+b²=(10)²

25+b²=100

b²=75

b=√75

b=5√3

So the ladder will reach a height of 5√3 ft.

7 0
3 years ago
Can someone help me with this please? It's due today!!
Juliette [100K]

Answer:

in order so the line can pass through those point the equation has to be:

Y=6/3x+0

8 0
3 years ago
The function y = x * ln(x + e) has two distinct x intercepts. One is at x = a and the other is at x = b. The value of a + b is
Snezhnost [94]
As points, x-intercepts take the form (x,0), so to find the intercepts we can set y=0 and solve for x.

x\ln(x+e)=0\implies\begin{cases}x=0\\\ln(x+e)=0\end{cases}

From the first equation alone, we already know that x=0 is a solution, which means one intercept is (0,0).

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3 0
3 years ago
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