All categories

2 years ago

Help me please! And quick! It's 7th grade level math...

Mathematics

2 answers:

LekaFEV [45]2 years ago

5 0

I don't know SORry LOL_

Mademuasel [1]2 years ago

4 0

Answer:

Number 5 is 10 pencils left in total(5 red, 5 blue) with 50 percent probability of getting red or blue. Number 6 is 9 left total (4 red, 5 blue) with a 44 percent probability of choosing a red one, 56 percent probability of choosing a blue one

Step-by-step explanation:

You might be interested in

Kendra flips a fair coin two times. What is the probability that she will flip tails both times?

wolverine [178]

Answer: 1/4 or 25%

Step-by-step explanation:

The chance of flipping tails is 1/2, so you multiply 1/2*1/2 (for the 2 flips) to get 1/4 (1/2^2=1/4).

4 0

2 years ago

The product of a number and -7/10 is 1/2 what is the number 1. 7/20 2. -5/7 3. -7/20 4. 5/7

matrenka [14]

Answer:

2) -5/7

Step-by-step explanation:

$\frac{-7n}{10}$ = $\frac{1}{2}$

cross-multiply to get:

10 = -14n

-10/14 = n

n = -5/7 (simplified)

3 0

2 years ago

What is the first derivative of this function?

Dvinal [7]

$\bf \cfrac{-9x^2}{8x^5+3}\implies \stackrel{\textit{using the quotient rule}}{\cfrac{(-18x)(8x^5+3)~~-~~(-9x^2)(40x^4)}{(8x^5+3)^2}} \\\\\\ \cfrac{(-144x^6-54x)~~-~~(-360x^6)}{(8x^5+3)^2}\implies \cfrac{-144x^6-54x~~+~~360x^6}{(8x^5+3)^2} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill \cfrac{216x^6-54x}{64x^{10}+48x^5+9}~\hfill$

7 0

2 years ago

(2x-15)+11x=180 degrees, what is x?!?

madreJ [45]

(2x-15) + 11x = 180
Combine your like terms in get
13x - 15 = 180
Add 15 on both sides
13x - 15 = 180
+15 + 15
13x = 195
Divide each side by 13 and get
x = 15

7 0

3 years ago

Someone help me with this please

vazorg [7]

Answer:

Step-by-step explanation:

A triangular prism has two rectangles on each side, then two triangles on the other sides. I hope this helps! :)

8 0

2 years ago