what two numbers can multiply to get 400 and add to get 8

The solutions for the quadratic equations ax² + bx = 0 are:

a) x=0 or x=-2 for x²+2x=0;

x=0 or x=2 for x²-2x=0;

x=0 or x=2 for -x²+2x=0;

x=0 or x=-2 for -x²-2x=0.

b) x=0 or x=-5/3 for 3x²+5x=0;

x=0 or x=5/3 for 3x²-5x=0;

x=0 or x=5/3 for -3x²+5x=0;

x=0 or x=-5/3 for -3x²-5x=0.

a) To solve the quadratic equations ax² + bx = 0, we need to factor out the common variable x, and then solve for x:

a) x²+2x=0

x(x+2)=0

x=0 or x=-2

b) x²-2x=0

x(x-2)=0

x=0 or x=2

c) -x² + 2x = 0

-x(x-2)=0

x=0 or x=2

d) -x²-2x=0

-x(x+2)=0

x=0 or x=-2

b) To solve the quadratic equations 3x²+5x=0, 3x²-5x=0, -3x²+5x=0, and -3x²-5x=0, we factor out the common variable x and then solve for x:

b) 3x²+5x=0

x(3x+5)=0

x=0 or x=-5/3

b) 3x²-5x=0

x(3x-5)=0

x=0 or x=5/3

c) -3x²+5x=0

x(-3x+5)=0

x=0 or x=5/3

d) -3x²-5x=0

x(-3x-5)=0

x=0 or x=-5/3

Therefore, the solutions for the quadratic equations ax² + bx = 0 are:

a) x=0 or x=-2 for x²+2x=0;

x=0 or x=2 for x²-2x=0;

x=0 or x=2 for -x²+2x=0;

x=0 or x=-2 for -x²-2x=0.

b) x=0 or x=-5/3 for 3x²+5x=0;

x=0 or x=5/3 for 3x²-5x=0;

x=0 or x=5/3 for -3x²+5x=0;

x=0 or x=-5/3 for -3x²-5x=0.

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The English translation of the question in the picture:

75. Solve the quadratic equations ax² + bx = 0

a) x²+2x=0,

x²-2x=0,

-x² + 2x = 0.

-x²-2x=0;

b) 3x²+5x=0,

3x²-5x=0.

-3x²+5x=0,

-3x²-5x=0;

Answer:

1st one

Step-by-step explanation:

The inequality that is not correct for x = 2.7 will be x + < 9. The correct option is A.

When two expressions are connected by a sign like "not equal to," "greater than," or "less than," it is said to be inequitable. The inequality shows the greater than and less than relationship between variables and the numbers.

Given that the value of x is 2.7. Check all the options for x = 2.7.

Option A:-

x + 14 < 9

x < 9 - 14

x < -5  False

Option B:-

x - 4 < 0

x < 4  True

Option C:-

3x + 6 ≥ 10

3x ≥ 4

x ≥ 4/3 True

Option D:-

6 - x ≥ 1

x ≤ 5 True

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To find the percentage, we must move the decimal place to the right two times. After doing this, 0.66 written as a percentage is 66%.

Answer:

66%

Step-by-step explanation:

All you do is put the decimal places two please to the right or do the number times 100.     .66 times 100= 66%

Answer:

B Q¹(1,2).............

Answer:

poor snail

Step-by-step explanation

the snail traveled 32.62 ft before gettin smashed

The annual decay rate of the radioactive substance is approximately 0.0470%.

To calculate the annual decay rate of a radioactive substance with a half-life of 1475 years, we can use the formula:

decay rate = (ln(2)) / half-life

First, let's calculate ln(2):

ln(2) ≈ 0.693147

Now, we can substitute the values into the formula:

decay rate = (0.693147) / 1475

Calculating this expression, we find:

decay rate ≈ 0.00046997

To express this decay rate as a percentage, we multiply by 100:

decay rate ≈ 0.046997%

Rounding to four significant digits, the annual decay rate of the radioactive substance is approximately 0.0470%.

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Answer:

(6, 5)

Step-by-step explanation:

Given the equation:

Then, expanding and operating this equation leads to:

There are no quadratic terms, so the equation is linear. Now, converting it to standard form:

Answer:

C

Step-by-step explanation:

(4^3)^5=4^(3*5)=4^15

Answer:

280

Step-by-step explanation:

The answer for the system is, (2, 5)

y= 5, x= 2

Given:

a.) A triangular prism has a base area of 43 square meters.

b.) Its volume is 645 cubic meters.

Recall: Formula in getting the volume of a triangular prism.

Where,

B = Base area of the prism.

H = Height of the prism.

Let's now determine the area of the prism:

Therefore, the height of the prism is 15 meters.

False statements:
a. 50% CPI adjustment applied to base rents means that if the cost of living goes up by, say, 8% then the base rent goes up by 4%.

b. All else held equal, single net rent with positive annual step-up adjustments is less risky for the lessor than single net rent with 100% CPI adjustments.

c. Lessor to Lessee is like tenant to building owner.

d. The Load Factor equals 1 when there's a single tenant in the building.


a. This statement is false. A 50% CPI adjustment means that the base rent would increase by 50% of the increase in the cost of living. So, if the cost of living goes up by 8%, the base rent would go up by 4% (50% of 8%).

b. This statement is false. Single net rent with positive annual step-up adjustments is actually more risky for the lessor compared to single net rent with 100% CPI adjustments.

With positive step-up adjustments, the rent increases by a fixed amount each year, regardless of the cost of living. This means that if the cost of living increases significantly, the rent may not keep up with the increased expenses for the lessor.

c. This statement is false. Lessor to Lessee is not the same as tenant to building owner. Lessor refers to the person or entity that owns the property and leases it to the lessee, who is the tenant.

The lessor is responsible for maintaining the property and providing certain services, while the lessee is responsible for paying rent and abiding by the terms of the lease agreement.

d. This statement is false. The load factor is a ratio that represents the proportion of a tenant's usable square footage to the total rentable square footage in a building.

It is used to calculate the tenant's share of common areas such as hallways, elevators, and restrooms. The load factor can be less than 1 even with a single tenant in the building, depending on the layout and design of the property.

To summarize, the false statements are:
a. 50% CPI adjustment applied to base rents means that if the cost of living goes up by, say, 8% then the base rent goes up by 4%.
b. All else held equal, single net rent with positive annual step-up adjustments is less risky for the lessor than single net rent with 100% CPI adjustments.
c. Lessor to Lessee is like tenant to building owner.
d. The Load Factor equals 1 when there's a single tenant in the building.

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Answer: 18

Step-by-step explanation:

Step-by-step explanation: The ratio of boys to girls in mr johnson's club: 4:12 =1:3

This ratio is same as the ratio of boys to girls inms greenesclub, 1:3

1:3 is same as 6:18

So there are 18 girls in ms greene club

is there any barinliest for me

Answer:

hi so can you explain it better i will know what to do thanks i will let you know when i have it

Step-by-step explanation:

Answer:

both are parallel to each other

Step-by-step explanation:

The coordinates of the circumcenter of the triangle with the given vertices is; (-3, -3).

The circumcenter of a given triangle can be determined by determining the center of its sides as given by the coordinates of the vertices.

For the x-coordinate of the circumcenter;

Hence, the x-coordinate of the circumcenter is given as the x-midpoint of vertices;

Similarly, For y;

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Answer:

0.35, 0.359, 1

Step-by-step explanation:

0.35 would be 0.350 meaning its less than 0.359

Answer:

• 85% protein supplement: 480 pounds

• 60% protein ration: 720 pounds

Explanation:

Let the number of pounds of 85% protein supplement required = x

The farmer wants to make 1200 pounds (of a high-grade 70% protein ration).

Therefore, the number of pounds of 60% protein ration required = (1200-x) lbs

First, we add the constituents we are mixing together.

The final protein ration we want to obtain:

Equate both:

Then solve the equation for x.

The number of pounds of the 85% protein supplement he should use is 480 pounds.

The number of pounds of the 60% protein ration he should use is 720 pounds.

a) To find dx/dt, we take the derivative of x with respect to t:

dx/dt = d/dt(1-t^2) = -2t

To find dy/dt, we take the derivative of y with respect to t:

dy/dt = d/dt(t^2 + 2t) = 2t + 2

To find dt'/dx, we first solve for t in terms of x:

x = 1-t^2

t^2 = 1-x

t = ±sqrt(1-x)

Since we are interested in the positive square root (since t is increasing), we have: t = sqrt(1-x)

Now we can take the derivative of this expression with respect to x: dt/dx = d/dx(sqrt(1-x)) = -1/2 * (1-x)^(-1/2) * (-1) = 1 / (2sqrt(1-x))

Finally, we can find dt'/dx by taking the reciprocal: dt'/dx = 2sqrt(1-x). Therefore, dx/dy dt' is: (dx/dy)(dt'/dx) = (-2t)(2sqrt(1-x)) = -4t*sqrt(1-x)

b) If a tiny person is walking along the graph of the parametric equations x=1-t², y=t²+2t, then their horizontal speed at any given point is dx/dt, which we found earlier to be -2t.

Their vertical speed at any given point is dy/dt, which we also found earlier to be 2t+2. Therefore, their overall speed (magnitude of their velocity vector) is given by the Pythagorean theorem:

speed = sqrt((-2t)^2 + (2t+2)^2) = sqrt(8t^2 + 8t + 4) = 2 * sqrt(2t^2 + 2t + 1)

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Answer:

I think It is C if Not pick A

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

Answer:

increase

Step-by-step explanation:

if your number gets bigger it's increase

if it gets smaller it's decrease

Answer:

Slope is 1000/4 y-int is the starting salary

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

Answer: 3/4

Step-by-step explanation:

You have to find one single number that goes into both the numerator and the denominator. In this case, it was 8.

24/8 = 3

32/8 = 4

Answer:

1st one is 3/4

second one is 32

I cant really see the third one

fourth one is $1.03

Step-by-step explanation:

a) The probability of randomly selecting 4 males out of 7 spectators, given that 70% of the spectators are males, can be calculated using the binomial probability formula.

b) To find the probability that at most 5 of the randomly selected spectators are females, we need to calculate the cumulative probability of selecting 0, 1, 2, 3, 4, and 5 females from the total number of selected spectators.

a) To calculate the probability of selecting 4 males out of 7 spectators, we can use the binomial probability formula:

P(X = k) = C(n, k) * p^k * (1 - p)^(n - k)

Where:

- n is the total number of trials (number of people selected)

- k is the number of successful trials (number of males selected)

- p is the probability of success in a single trial (probability of selecting a male)

- C(n, k) is the binomial coefficient, calculated as C(n, k) = n! / (k! * (n - k)!)

In this case, n = 7, k = 4, and p = 0.70 (probability of selecting a male). Therefore, the probability of selecting 4 males out of 7 spectators is:

P(X = 4) = C(7, 4) * (0.70)^4 * (1 - 0.70)^(7 - 4)

b) To find the probability that at most 5 of the selected spectators are females, we need to calculate the cumulative probability of selecting 0, 1, 2, 3, 4, and 5 females. This can be done by summing the individual probabilities for each case.

P(X ≤ 5 females) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4) + P(X = 5)

To calculate each individual probability, we use the same binomial probability formula as in part a), with p = 0.30 (probability of selecting a female).

Finally, we sum up the probabilities for each case to find the probability that at most 5 of the selected spectators are females.

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The solution to the equation \((\sum\limits^{\infty}_{i=1} \frac{1}{2^i}) + (\sum\limits^{\infty}_{i=1} \frac{9}{10^i}) + \sin^2(\theta) + \cos^2(\theta) + e^2\) is 10.3891

From the question, we have the following parameters that can be used in our computation:

\((\sum\limits^{\infty}_{i=1} \frac{1}{2^i}) + (\sum\limits^{\infty}_{i=1} \frac{9}{10^i}) + \sin^2(\theta) + \cos^2(\theta) + e^2\)

Using the following trigonometry ratio

sin²(x) + cos²(x) = 1

We have

\((\sum\limits^{\infty}_{i=1} \frac{1}{2^i}) + (\sum\limits^{\infty}_{i=1} \frac{9}{10^i}) + \sin^2(\theta) + \cos^2(\theta) + e^2 = (\sum\limits^{\infty}_{i=1} \frac{1}{2^i}) + (\sum\limits^{\infty}_{i=1} \frac{9}{10^i}) + 1 + e^2\)

The sum to infinity of a geometric series is

S = a/(1 - r)

So, we have

\((\sum\limits^{\infty}_{i=1} \frac{1}{2^i}) + (\sum\limits^{\infty}_{i=1} \frac{9}{10^i}) + \sin^2(\theta) + \cos^2(\theta) + e^2 = \frac{1/2}{1 - 1/2} + \frac{9/10}{1 - 1/10} + 1 + e^2\)

So, we have

\((\sum\limits^{\infty}_{i=1} \frac{1}{2^i}) + (\sum\limits^{\infty}_{i=1} \frac{9}{10^i}) + \sin^2(\theta) + \cos^2(\theta) + e^2 = 1 + 1 + 1 + e^2\)

Evaluate the sum

\((\sum\limits^{\infty}_{i=1} \frac{1}{2^i}) + (\sum\limits^{\infty}_{i=1} \frac{9}{10^i}) + \sin^2(\theta) + \cos^2(\theta) + e^2 = 3 + e^2\)

This gives

\((\sum\limits^{\infty}_{i=1} \frac{1}{2^i}) + (\sum\limits^{\infty}_{i=1} \frac{9}{10^i}) + \sin^2(\theta) + \cos^2(\theta) + e^2 = 10.3891\)

Hence, the solution to the equation is 10.3891

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The truth values of the given statements in terms of q(x) are: q(0) is true, q(1) is false, q(-2) is false, and q(2) is true.

The statement q(x) is x² = 2x. Now, we will check the truth value of each statement in terms of q(x):

(i) q(0): \(0^2=2\times 0\)

   q(0): 0 = 0; so, the statement q(0) is true.

(ii) q(1): \(1^2=2\times 1\)

    q(1): 1 = 2; so, the statement q(1) is false.

(iii) q(-2): \((-2)^2=2\times (-2)\)

     q(-2): 4 = -4; so, the statement q(-2) is false.

(iv) q(2): \(2^2=2\times 2\)

     q(2): 4 = 4; so, the statement q(2) is true.

So, the truth values of the given statements in terms of q(x) are: q(0) is true, q(1) is false, q(-2) is false, and q(2) is true.

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