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Archy [21]
3 years ago
13

2.3•10^3 scientific notation

Mathematics
1 answer:
labwork [276]3 years ago
4 0
Well, 2.3•10^3 is the same as 2.3•1000. So move the decimal place three times to the right and you get a final answer of 2300.
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y = 3x + 3 y = x − 1 Explain how you will solve the pair of equations by substitution. Show all the steps and write the solution
Leona [35]
Y = 3x + 3
y = x - 1

As you can see, both equations are set to equal y. This means the right sides of each equation are equal, since y is isolated in both equations. So to solve this particular system of equations for x, set the right sides of both equations equal to each other. After you've done that, you can proceed to solve the equation algebraically for the variable, x.

3x + 3 = x - 1
2x + 3 = -1
2x = -4
x = -2

Negative two is the x-value. To find the y-value, substitute -2 for x into either equation and solve algebraically for y.

y = x - 1
y = -2 - 1
y = -3

The final step is to check all work by plugging both x- and y-values back into both equations.

y = 3x + 3
-3 = 3(-2) + 3
-3 = -6 + 3
-3 = -3  --  This is true

y = x - 1
-3 = -2 - 1
-3 = -3  --  This is true.

Answer:
(-2, -3)
5 0
4 years ago
Polynomials please someone help me !!!<br><br><br><br> (x4)2
CaHeK987 [17]
Remember
(x^n)^m=x^(mn)

(x^4)^2=x^(4*2)=x^8
3 0
3 years ago
Read 2 more answers
MARKING BRANLIEST!!
grin007 [14]
Area of a triangle is = 0.5bh
if the height (h) is 4 less than base (b) then h = b - 4

48 = 0.5(b)(b - 4)
48/0.5 = b² - 4b
96 = b² - 4b
b² - 4b - 96 = 0
(b + 8)(b - 12) = 0

b must be either -8 or 12

since a distance can't be negative that means
the base is 12
6 0
3 years ago
Reference angle to 0=225
Nuetrik [128]

Since the angle 225° is in the third quadrant, the reference angle formula is Ar=Ac-180°. Ar = 225° − 180°

Ar=225°-180°

The reference angle is Ar=45°

<span> </span>

7 0
4 years ago
Read 2 more answers
In a certain liberal arts college with about 10,000 students, 53% are males. If two students from this college are selected at r
tamaranim1 [39]

Answer:

There is a 50.18% probability that they are of the same gender.

Step-by-step explanation:

We have these following percentages:

53% of the students are males.

47% of the students are females.

If two students from this college are selected at random, what is the probability that they are of the same gender?

The probability that each is male is 53%. So the probability of both being males is

P_{MM} = 0.53*0.53 = 0.2809

The probability that each is female is 47%. So the probability of both being females is

P_{FF} = 0.47*0.47 = 0.2209

The probabilty that both are the same gender is:

P = P_{MM} + P_{FF} = 0.2809 + 0.2209 = 0.5018

There is a 50.18% probability that they are of the same gender.

7 0
4 years ago
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