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3 years ago

Simplify 7y exponent 2- y exponent 2=

Mathematics

2 answers:

bixtya [17]3 years ago

8 0

7y^2 - y^2 = 6y^2 is the answer . Hope This Helps You !

GuDViN [60]3 years ago

3 0

7y^2 - y^2 = 6y^2

hope it helps

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Suppose you have 60 red marbles and 40 blue marbles in a

andrew-mc [135]

Answer: The required probability is 0.26.

Step-by-step explanation: Given that there are 60 red marbles and 40 blue marbles in a box 10 marbles are picked without replacement.

We are to find the probability of selecting 6 red marbles.

Since the marbles are picked up without replacement, so it is a situation of combination.

Let S denote the sample space of the experiment of drawing 10 marbles and E denote the event that 6 marbles are red.

So,

$n(S)=^{100}C_{10}=\dfrac{100!}{10!(100-10)!}=\dfrac{100!}{10!90!}=17310309456440,\\\\\\n(E)=^{60}C_6\times^{40}C_4=\dfrac{60!}{6!54!}\times\dfrac{40!}{4!36!}=50063860\times91390.$

Therefore, the probability of event E is given by

$P(E)=\dfrac{n(E)}{n(S)}=\dfrac{50063860\times91390}{17310309456440}=0.26.$

Thus, the required probability is 0.26.

6 0

3 years ago

Corey thinks of a number. He adds 25 to it then halves the result. Then he subtracts 17 and multiplies the result by 3. His fina

scoray [572]

You just have to do the opposite of what Corey did.
So (18 ÷3 +17) ×2 -25

The answer is 21

Hope I can help you, brainliest answer? :)

4 0

3 years ago

Read 2 more answers

The camp cook made 3 1/2 pints of baked beans. Each serving of beans is 1/2 of a pint. How many servings of beans did the cook m

Ilia_Sergeevich [38]

Answer:

The cook made 7 pints

Step-by-step explanation:

Just minus the half pints

5 0

3 years ago

Quiz! <br>2x + 2 = 4 <br>find x! <br>

lilavasa [31]

<h3>Solution</h3>

2x + 2 = 4
2x = 4 - 2
2x = 2
x = 2 ÷ 2
x = 1

<h3>Proof</h3>

2(1) + 2
= 2 + 2
= 4

7 0

3 years ago

Read 2 more answers

Graph Y+5=-2x and explain how you did it.

Margaret [11]

Y
=
−
2
x
+
5
y
=
-
2
x
+
5
Use the slope-intercept form to find the slope and y-intercept.
Tap for more steps...
Slope:
−
2
-
2
y-intercept:
(
0
,
5
)
(
0
,
5
)
Any line can be graphed using two points. Select two
x
x
values, and plug them into the equation to find the corresponding
y
y
values.
Tap for more steps...
x
y
0
5
5
2
0

6 0

2 years ago