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3 years ago

11

Does the expression 2b + 5b have like terms?

2 answers:

Soloha48 [4]3 years ago

3 0

Answer:

Yes. 'b' is a like term

Step-by-step explanation:

ValentinkaMS [17]3 years ago

3 0

The two terms have the same variable, B. This allows us to add them together directly. 2B + 5B = 7B

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-1 3/7 • (-3 2/3) = ?<br><br> A: 3 2/7<br> B: 5 5/21<br> C: 11<br> D: -5 5/21

Anna35 [415]

[|] Answer [|]

$\boxed{5 \ \frac{5}{21}}$

[|] Explanation [|]

$-1 \ \frac{3}{7}$ * $-3 \frac{2}{3}$

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Convert Fractions To Mixed Numbers:

$-1 \ \frac{3}{7}$ = $\frac{-10}{7}$

$-3 \ \frac{2}{3}$ = $\frac{-11}{3}$

Multiply Across:

$\frac{-10 \ * \ -11}{7 * 3}$

= $\frac{110}{21}$

Simplify:

= $5 \ \frac{5}{21}$

$\boxed{[|] \ Eclipsed \ [|]}$

8 0

3 years ago

Let f(x) = x^2 + 6x.

rusak2 [61]

Answer:

(A) The slope of secant line is 18.

(B) The slope of secant line is h+16.

Step-by-step explanation:

(A)

The given function is

$f(x)=x^2+6x$

At x=3,

$f(3)=(3)^2+6(3)=27$

At x=9,

$f(9)=(9)^2+6(9)=135$

The secant line joining (3,27) and (9,135). So, the slope of secant line is

$m=\dfrac{y_2-y_1}{x_2-x_1}$

$m=\dfrac{135-27}{9-3}=18$

The slope of secant line is 18.

(B)

The given function is

$f(x)=x^2+6x$

At x=5,

$f(5)=(5)^2+6(5)=55$

At x=5+h,

$f(5+h)=(5+h)^2+6(5+h)=h^2 + 16 h + 55$

The secant line joining (5,55) and $(5+h,h^2 + 16 h + 55)$ . So, the slope of secant line is

$m=\dfrac{h^2 + 16 h + 55-55}{5+h-5}$

$m=\dfrac{h^2 + 16 h }{h}$

$m=h+16$

The slope of secant line is h+16.

4 0

3 years ago

Help with some problems PLZ Help. This is not cheating My teacher told me to ask my mom but i don't have one, dads working. seri

Oxana [17]

Answer: what are ur problems

8 0

4 years ago

7. Susie bought some reams of paper for 5 each and a $200 printer. He spent a minimal of $450. write and solve an equation to fi

Dovator [93]

Answer:

$450-200÷5=the number of reams of paper Susie purchased.

Step-by-step explanation:

$450-$200=$250

$250÷5= 50

Therefore, Susie purchased 50 reams of paper

3 0

3 years ago

Evaluate the function f (x)  4 • 7x for x  1 and x = 2. Show your work

SashulF [63]

The function and the first value stated for x are confusing.

Doing some research, I found that the problem is to evaluate the function $f(x)=4.7^x$ for x = - 1 and x 2.

The solution is:

1) For x = - 1

$f(-1)=4. 7^{-1} =4. (1/7)=4/7$

2) For x = 2

$f(2)=4.7^2=4(49)=196$

5 0

3 years ago