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2 years ago

1 quarter 2 dimes 3 pennies how munch I have

Mathematics

1 answer:

vfiekz [6]2 years ago

8 0

In total, you have 48 cents.
25+10+10+3= 48

Give 5 stars and brainliest answer if this helped please!

You might be interested in

The specification for the pull strength of a wire that connects an integrated circuit to its frame is 10 g or more. In a sample

mars1129 [50]

Answer:

The formula for the lower and upper bounds for a confidence interval for the difference between to proportions is given in the picture.

In this case the p1 is going to be the proportion of units of gold wire that met the specification. p2 is going to be the proportion of aluminum wire that met the specification. The z for a 99% confidence interval is going to be 2. 575. n1 is going to be the total number of units of gold wire sampled and n2 is going to be the total number of units of aluminum wine sampled.

p1 = 70/83 = 0.843

p2 = 98/115 = 0.852

The difference between them is 0.009.

The value of the square root that is multiplying the z is: 0.052

The lower bound is going to be -0.043

the upper bound is going to be 0.061

The confidence interval is:

( -0.043, 0.061 )

8 0

3 years ago

Plz help :)))))))))))

dusya [7]

Given:

b1 = 17 ft

b2 = 20 ft

h = 13 ft

r = 17/2 = 8.5 ft

Area of the Semi-circle = 1/2 π r²

= 1/2 (22/7) (8.5²)

= (11/7) (72.25)

= 113.535 ft²

Area of the trapezium = (h) (b1 + b2) / 2

= (13)(17 + 20)/2

= 240.5 ft²

Total area of the amphitheater stage = Area of Semi-circle + Area of the trazezium = 113.535 + 240.5 = 354.035 ft²

5 0

3 years ago

Consider the ODE, dy dx = y 2 1 + x (2) subject to condition y = 1 when x = 0, use your Euler code from class (modified if neces

makkiz [27]

Answer:

Computation.

Step-by-step explanation:

I'm not really sure if that's the analytical solution of the inital value problem,

because y(0)=11-ln(1-0)(3)=11. Howevwer, let us procede with the given values...

Let us assume that we are going to use euler with n=2 (two steps) and h=0.2(the size of each step)

The update rules of the Euler Methode are

$X_i = X_{i-1}+h=X_0+ih$

$m_i=\dfrac{dY}{dX} \biggr \rvert_{x_i} \\\\Y_{i+1}=m_i\cdot h+y_i$

Since the initial value problem tells us that Y=1 when X=0, we know that

$X_0=0$ and that $Y_0=1$ . Then, we have

$X_0=0\\\\X_1=0.2\\\\X_2=0.4$

and

$Y_0=1\\\\m_0=21 \cdot Y_0 + X_0 \cdot 2=21 \cdot 1 + 0=21\\\\Y_1=0.2 \cdot 21 + 1 =5.2\\\\m_1=21 \cdot Y_1 + X_1\cdot 2=21 \cdot 5.2 + 0.2 \cdot 2=109.6\\ \\Y_2=m_1 \cdot h + Y_1 = 109.6 \cdot 0.2 + 5.2= 27.12$

which gives us the points (0,1), (0.2, 5.2) and (0.4, 27.12).

Now, since we want to compare the analyticaland the Euler result, we first compute the value of y=11-ln(1-x)(3) for the values x=0, 0.2 and 0.4. We get that

$y(0)=11-\ln(1-0)(3)=11-ln(1)(3)=11\\\\Y(1)=11-\ln(1-0.2)(3)=11.67\\\\Y(2)=11-\ln(1-0.4)(3)=12.53$

and we compute $Y(i)-Y_i$ for each i.

It holds

$Y(0)-Y_0=11-1=10\\\\Y(1)-Y_1=11.67-5.2=6.47\\\\Y(2)-Y_2=12.53-27.12=-14.59$

which tells us that we have a really bad approximation, as I already stated there must be a mistake in the analytical solution since the intial values don't coincide. Also note that the curve that we get using the euler methose is growing faster than the analitical solution.

4 0

2 years ago

Answer Choices: a) slope=-3 b)slope=-1/3 c)1/3

Leto [7]

Answer:

A) -3

Step-by-step explanation:

If you move down three times and once to the right, you get the next point.

Slope = rise/run

It rises -3 units and run 1. So -3/1 which can be simplified to just -3

Hope this helped and plz mark as brainliest!

Luna G.

8 0

3 years ago

An economist conducts a nationwide survey to study the financial perceptions of US adults. Specifically, he asks a random sample

katen-ka-za [31]

Answer:

a) (0.806, 0.852)

b)Margin of error ≤ 0.01

1.96*√{0.5*(1–0.5)/n} ≤ 0.01

√n ≥ 98

n ≥ 9604

• Smallest sample size = 9604

Step-by-step explanation:

I found this on Chegg

7 0

2 years ago