All categories

3 years ago

Joey used

Mathematics

1 answer:

Aleksandr [31]3 years ago

7 0

Answer:

0.40

Step-by-step explanation:

You might be interested in

The current value of a baseball card is 60 times its original value v

jeka94

60v = $15

60v/60 = $15/60

v = 0.25

The original value of the baseball card is $0.25

5 0

4 years ago

Find the product.

scoundrel [369]

Answer:

Step-by-step explanation:

$-2x^a(-4x^b -2x^3 +5x)=-2x^a(-4x^b)-2x^a(-2x^3)-2x^a(5x)=\\\\=8x^{a+b} + 4x^{a+3} - 10x^{a+1}$

8 0

3 years ago

Read 2 more answers

Simplify.<br> Rewrite the expression in the form b^n<br><br> (b^3)^2

Alexxandr [17]

Step-by-step explanation:

$a^n={\underbrace{a\cdot a\cdot a\cdot...\cdot a}_{n}$

<h2>METHOD 1.</h2>

$\left(b^3\right)^2=\underbrace{b^3\cdot b^3}_{2}=\underbrace{b\cdot b\cdot b}_{3}\cdot\underbrace{b\cdot b\cdot b}_{3}=\underbrace{b\cdot b\cdot b\cdot b\cdot b\cdot b}_{6}=b^6$

<h2>METHOD 2.</h2>

$\left(b^3\right)^2=\underbrace{b^3\cdot b^3}_{2}=b^{3+3}=b^6\qquad\text{used}\ a^n\cdot a^m=a^{n+m}$

<h2>METHOD 3.</h2>

$\left(b^3\right)^2=\left(\underbrace{b\cdot b\cdot b}_{3}\right)^2=b^2\cdot b^2\cdot b^2=b^{2+2+2}=b^6\\\text{used}\ (ab)^n=a^nb^n,\ a^n\cdot a^m=a^{n+m}$

<h2>METHOD 4.</h2>

$\left(b^3\right)^2=b^{3\cdot2}=b^6\qquad\text{used}\ \left(a^n\right)^m=a^{nm}$

5 0

3 years ago

(3,7)(2,6) Find the equation for the line that falls through the two ordered pairs

Alexxandr [17]

Answer: The equation for the two given points is y=x+b

Step-by-step explanation:

Step 1. First find the slope: 6-7/2-3 = -1/-1=1. The slope is just 1, or x. So for now, the equation is y=x+b

Step 2. We must find the y-intercept, or B. We can plug in any points to find b. Let's use (2, 6) (but you can use (3, 7) too, it doesn't matter) Plug 2 in for x, since 2 represents x, and then do the same for y. ---> 6=2+b.

Step 3. Simplify. 6=2+b. 6-2=2-2+b ---> b=4. Subtract both sides by 2 to get B.

The equation for the two given points is y=x+b

Hope this helps.

7 0

3 years ago

H(y)=4|y+2|−3, evaluate h(−8).

nikdorinn [45]

Answer:

h(-8)=21

Step-by-step explanation:

-8+2=-6

abs(-6)=6

4*6=24

24-3

7 0

3 years ago