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3 years ago

Write an addition equation that is represented by the model below.

Mathematics

1 answer:

katrin2010 [14]3 years ago

6 0

Answer:

Step-by-step explanation:

Okay I'm not sure but I found an article online that seemed explanatory so here ya go

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157 is 16.6% of what number

Arisa [49]

Answer:

945.78

Step-by-step explanation:

4 0

3 years ago

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Please help. The survey data, and question is in the picture provided.

notka56 [123]

Answer:

$\frac{83}{186}$

Step-by-step explanation:

In probability, "OR" means "+" and "AND" means "*".

The total amount of people is:

32 + 54 + 78 + 112 + 96 = 372

Number of diabetic patients are 54

Number of eye patients are 112

Since we want "OR", we will add the two probabilities:

P(diabetic or eye problem) = 54/372 + 112/372 = 83/186

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3 years ago

Use Euler’s method with two steps to estimate y(1) if y(x) is the solution to dy dx = x + y, y(0) = 1. Write your answer in the

tresset_1 [31]

Answer:

1.5

Step-by-step explanation:

The Euler's method is a common approximation method for the solution of differential equations. It can be used to obtain an approximate value of a given function. The Euler's formula is:

$y_{n} = y_{n-1} + hF(_{x_{n-1},y_{n-1}})$

Therefore, n =1 will give:

$y_{1} = y_{0} + hF(x_{0},y_{0})$

h is the step size and it is equivalent to $\frac{x_{1}-x_{2}}{2} = \frac{1-0}{2}=\frac{1}{2}$

$F(x_{0},y_{0}) = x_{0} + y_{0} = 0 + 1 = 1$

$y_{1} = 1 + (0.5)(0+1) = 1 + (0.5)(1) = 1 + 0.5 = 1.5$

4 0

3 years ago

What is the value of x?<br> 12 units<br> 15 units<br> 20 units<br> 25 units

Firlakuza [10]

Answer:

The answer is 12 units.

Step-by-step explanation:

Looking at the figure we see that

$(1).9^2+x^2=SR^2$

$(2).16^2+x^2=RQ^2$ and

$(3).SR^2+RQ^2=(9+16)^2$

Now from equations (1) and (2) we have values for $SR^2$ and $RQ^2,$ so we put those into the equation (3) and get:

$9^2+x^2+16^2+x^2=(9+16)^2$

$\rightarrow 337+2x^2=625$

$\boxed{\therefore x= 12.}$

Therefore the answer is 12 units.

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3 years ago

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Josephine is taking a college course, and her professor bases the course grade on the average of 2 tests taken in the semester.

Rufina [12.5K]

b = 2A - a

a + b = 2A

(a + b)/2 = A

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3 years ago

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