Does 400000 equal 4*10 to 6 power

The correct number sentence matches a model with 9 balloons and 9 weights is,

⇒ 9 + (-9) = 0

Here,

We have to find the number sentence matches a model with 9 balloons and 9 weights.

What is Mathematical expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Now,

Since, The balloons are in upward direction, so it take positive sign.

Hence, 9 balloons = +9

Since, The weight is are act in downward direction, so it take negative direction.

Hence, 9 weight = -9

Combine both we get;

9 + (-9) = 9 - 9 = 0

Therefore, The correct number sentence matches a model with 9 balloons and 9 weights is,

⇒ 9 + (-9) = 0

Learn more about the mathematical expression visit:

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Answer:

f(x) + g(x) = 7x² - 4x + 2

General Formulas and Concepts:

Algebra I

Step-by-step explanation:

Step 1: Define

f(x) = 5x² - 3x - 1

g(x) = 2x² - x + 3

Step 2: Find f(x) + g(x)

Answer:

Half of three fourths is 3/4 divided by 2.

As 2 is 2/1 3/4 divided by 2 is equivalent to 3/4 * 1/2.

This will give you the answer 3/8.

Half of three fourths is 3/8.

Step-by-step explanation:

Answer: 14/15.

Step-by-step explanation:0.9333333333 but in decimal form its 14/15

basket of apples cost $6

Step-by-step explanation:

8/4 bread= $2

8-2=6

$6= 1 bag of orange

19-13=6$

Answer:

Step-by-step explanation:

1.

a)

Find the vertex by completing the square to answer both a and b

d)

x-ints is when y=0

so use quadratic equation for

b^2-20b+200=0

a=1

b= -20

c=200

But notice these imaginary numbers means 0 x intercepts.

Answer: 2 * 2 = 4

Explanation: Thanks for the points !!

Answer:

I pretty sure its B.

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

The term "rise over run" is frequently used when talking about slope. It means the vertical distance over the horizontal distance, so the answer is D, rise.

Answer:

the answer is 18 thanks to ask help

Answer:

Standard form:

−x − 7 = 0

Factorization:

−(x + 7) = 0

Solutions:

x = −7

Step-by-step explanation:

hope it helps

Answer:

true

Step-by-step explanation:

Answer:

where are the measurements?

Step-by-step explanation:

Answer:

265

Step-by-step explanation:

since take the 100 on the left if u put 2 lying down it wont fit, about half of that would fit. So it would be about 265

Mark as brainliest plz

Answer:

15

Step-by-step explanation:

If she drinks 3 per hour and she will be there for 5 hours (3 x 5 = 15) than he will need 15 cups of water and not 12.

Answer:

A)  P(Z > 5000) = 0.0322

B)  P( Y = 2 or 3) ≅  0.9032

Step-by-step explanation:

From the given information;

Suppose the sales for the first week are denoted by X and the sales for the second week are denoted by Y.

Then;

X & Y are independent and they follow a normal distribution.

i.e.

[tex]XY \sim N(\mu,\sigma^2)[/tex]

[tex]XY \sim N(2200,230^2)[/tex]

If we set Z to be equal to X+Y

Then, [tex]Z \sim N(2 \times 2200,2 \times 230^2)[/tex] since two normal distribution appears normal

[tex]Z \sim N(4400,105800)[/tex]

So;

[tex]P(Z > 5000) = 1 - P( Z< \dfrac{x = \mu}{\sqrt{\sigma}})[/tex]

[tex]P(Z > 5000) = 1 - P( Z< \dfrac{5000-4400}{\sqrt{105800}})[/tex]

[tex]P(Z > 5000) = 1 - P( Z< \dfrac{600}{325.2691})[/tex]

[tex]P(Z > 5000) = 1 - P( Z< 1.844626495)[/tex]

[tex]P(Z > 5000) = 1 - P( Z< 1.85)[/tex]

From the Z - tables;

P(Z > 5000) = 1 - 0.9678

P(Z > 5000) = 0.0322

B)

Let Y be the random variable that obeys the Binomial distribution.

Y represents the numbers of weeks in the next 3 weeks where the gross weekly sales exceed $2000

Thus;

[tex]Y \sim Bin(3,p)[/tex]

where;

[tex]p = 1 - P( Z < \dfrac{2000-2200}{230})[/tex]

[tex]p = 1 - P( Z < \dfrac{-200}{230})[/tex]

p = 1 - P( Z < - 0.869565)

From the Z - tables;

p = 1 - 0.1924

p = 0.8076

Now;

P(Y ≥ 2) = P(Y = 2) + P( Y =3 )

Using the formula

[tex]P(X = r ) = ^nC_r \times p^r \times q ^{n-r}[/tex]

[tex]P( Y = 2 \ or \ 3) =^ 3C_2 \times 0.8076^2 \times ( 1- 0.8076) ^ {3-2} + ^ 3C_3 \times 0.8076^3 \times ( 1- 0.8076) ^ {3-3}[/tex]

[tex]P( Y = 2 \ or \ 3) =\dfrac{3!}{2!(3-2)!} \times 0.8076^2 \times ( 0.1924) ^ 1 + \dfrac{3!}{3!(3-3)!}\times 0.8076^3 \times ( 0.1924) ^ {0}[/tex]

[tex]P( Y = 2 \ or \ 3) =0.3764600911 +0.526731063[/tex]

P( Y = 2 or 3) = 0.9031911541

P( Y = 2 or 3) ≅  0.9032

Answer:

There are two real and different roots

Step-by-step explanation:

The discriminant is given by b²-4ac

(-12)²-4(70×1)

144-280

136

Now 136>0

Let D = discrimination

Rules:

If D > 0, there are 2 real number solutions.

If D = 0, there is only 1 real number solution.

If D < 0, there are 2 imaginary solution.

Given 70w2 - 12w + 1 = 0, b = -12, a = 70 and c = 1.

D = b^2 - 4ac

D = (-12)^2 - 4(70)(1)

D = 144 - 280

D = -136

Our D value is less than 0.

Our case is D < 0.

This means the given quadratic equation has 2 imaginary solutions.

Answer:

liam's answer is correct

Step-by-step explanation:

Answer:

Yes it is Liam

Step-by-step explanation:

Good job other guy! :)

Answer: 0.5

Step-by-step explanation:

To reduce a fraction: divide the numerator and denominator by their greatest common factor, GCF.

Fraction: 7/10 already reduced to the lowest terms.

The numerator and denominator have no common prime factors.

Their prime factorization:

7 is a prime number;

10 = 2 × 5;

gcf (7; 2 × 5) = 1;

Answer:

First you have to find the common denominator

Next you take what you did to the bottom you gotta do to the top like if you 30 does into both them you multiple 3 times 2 cause you did that to 15 and multiply 7 times 3

Then you subtract

Step-by-step explanation:

Answer:

45°

Step-by-step explanation:

The base angle are the same measure and since one angle is already 90° the remaining two are 45°. They have to equal up to 180. 90 + 45 + 45 = 180.

Hope this helps ya!!

Answer:

12 (who has 12 friends?)

Step-by-step explanation:

make the fractions, I think its called a denominator,  the same.

6/7 tums into 12/14

so if you give each friend 1/14 then you could feed 12 friends

this answer only works if you're not eating as well