find the perimeter of an isosceles triangle having a base of 4 feet and the congruent sides equal to 3 feet 9 inches

Step-by-step explanation:

82÷100= 0.82

0.82×164= 134.48 /134

Answer:

yes

Step-by-step explanation:

Using the information given, it is found that:

a) 0.39

b) z = 1.96

c) s = 0.0218

d) M = 0.0428

e)

f) The 95% confidence interval is (0.3472, 0.4328), which means that we are 95% sure that the true proportion of boats who are in violation of one or more  safety regulations is (0.3472, 0.4328).

Item a:

The point estimate is the sample proportion, hence:

[tex]\pi = \frac{195}{500} = 0.39[/tex]

Item b:

95% confidence level, hence [tex]\alpha = 0.95[/tex], the critical value z is the value of Z that has a p-value of [tex]\frac{1+0.95}{2} = 0.975[/tex], so [tex]z = 1.96[/tex].

Item c:

The standard error is:

[tex]s = \sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

For this problem, [tex]\pi = 0.39, n = 500[/tex], hence:

[tex]s = \sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

[tex]s = \sqrt{\frac{0.39(0.61)}{500}}[/tex]

[tex]s = 0.0218[/tex]

Item d:

The margin of error is:

[tex]M = zs[/tex]

In this problem, [tex]z = 1.96, s = 0.0218[/tex], hence:

[tex]M = zs = 1.96(0.0218) = 0.0428[/tex]

Item e:

The lower bound is:

[tex]\pi - M = 0.39 - 0.0428 = 0.3472[/tex]

The upper bound is:

[tex]\pi + M = 0.39 + 0.0428 = 0.4328[/tex]

The lower bound is 0.3472.

The upper bound is 0.4328.

Item f:

The 95% confidence interval is (0.3472, 0.4328), which means that we are 95% sure that the true proportion of boats who are in violation of one or more  safety regulations is (0.3472, 0.4328).

A similar problem is given at https://brainly.com/question/15136737

Answer:

Focus is (0,64)

Step-by-step explanation:

Directrix is y = -64

Axis of Symmetry is x = 0

Answer:

-8b - 32

Step-by-step explanation:

8(-b-4)

Distribute

8 *(-b) + 8 * (-4)

-8b - 32

Answer:

-8b-32

Step-by-step explanation:

8(-b-4) next it would be -8b-32

Step-by-step explanation:

e^4x = 5

x = 1/4 × ln(5)

x ÷ 1/4 = ln(5)

x.4 = ln(5)

4x = ln(5)

ln(5) = 4x

Option → D

Answer:

Graph A

Step-by-step explanation:

Graph the parabola using the direction, vertex, focus, and axis of symmetry.

Direction: Opens Up

Vertex:  ( 0 ,  2 )

Focus:  

( 0 ,  41 /20 )

Axis of Symmetry:  x = 0

Directrix:  y = 39 /20

x                   y

− 2                22

− 1                 7

0                  2

1                    7

2                  22

Answer:

1 minute every mile

Step-by-step explanation:

just divide

Step-by-step explanation:

this is a kind of trick question, actually.

with whatever we draw, we produce X values as power of 3.

to be precise, we can have only

3⁰ = 1

3¹ = 3

3² = 9

3⁴ = 81

due to the possible combinations of drawn numbers (e.g. 3 cannot be created by a multiplication of 0s, 1s and 2s).

so, mostly, these results cannot be exact factors of 1024.

1024 cannot be divided by 3, nor by 9 nor by 81.

but 1024 is a multiple of 1 (as is every number).

so, we are looking at the probability to get 0 as multiplication result of the numbers on the 2 drawn balls.

the only possibilities are

1 and 0

2 and 0

out of in total 6 (2×3) different outcomes

1 and 0

1 and 1

1 and 2

2 and 0

2 and 1

2 and 2

the probability of this "0" event is again

number of desired outcomes / number of possible outcomes = 2/6 = 1/3

Answer:

0

Step-by-step explanation:

Because it is a line parallel to x-axis.

Answer:

8/10

Step-by-step explanation:

Answer:

all of the expressions are equivalent

Step-by-step explanation:

if you simplify each expression, you get the same answer for all of them

Answer:

9 players rushed 20 or more yards this season

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

The slope is 3. It's the correct answer.

Answer:

yes

Step-by-step explanation:

you can use the vertical line test

Answer:

the answer will be choice D

as we can see that the triangle have angles measuring 30 60 and 90 so we will use the 30-60-90 rule

you can look up the explantion about the rule online

Answer:

y = -2/7(x) + 3

Step-by-step explanation:

The equation of a line can be stated as y = mx + b, where m is the slope and b is the y-intercept (the value of the function when x = 0).  To find the equation of the line, we'll start by finding the slope.

The slope can be expressed as [tex]\frac{y_{2} - y_{1}}{x_{2}-{x_1}}[/tex]

Substituting in our coordinates, we have:

[tex]m = \frac{1 - 5}{7 - (-7)} = \frac{-4}{7 + 7} = \frac{-4}{14}[/tex], which can be simplified to [tex]-\frac{2}{7}[/tex]

Plugging that back into our equation, we have y = [tex]-\frac{2}{7}[/tex]x + b

Now, to find b, we substitute in one of our sets of coordinates.  Let's use (-7, 5)

x = -7 and y = 5, which gives us:

[tex]5 = -\frac{2}{7} (-7) + b[/tex]

[tex]-\frac{2}{7} (-7) = 2[/tex], which gives us:

5 = 2 + b

Subtracting 2 from both sides, we get:

3 = b

Plugging that back into our equation, we have [tex]y = -\frac{2}{7} x + 3[/tex]

Answer:

inding the Greatest Common Factor (GCF): To find the GCF of two expressions:

Factor each coefficient into primes. Write all variables with exponents in expanded form.

List all factors—matching common factors in a column. ...

Bring down the common factors that all expressions share.

Multiply the factors

Answer:

Step-by-step explanation:

2x = 2*x

4y = 2 *2 *y

6z = 2* 3 * z

GCF = 2

GCF is the greatest common factor. Here 2 is common factor

2x - 4y + 6z = 2*(x - 2y + 3z)

9514 1404 393

Answer:

  d(32) = 28.80

  the price Marcus pays on an item with an original price of 32

Step-by-step explanation:

  d(32) = 32 -0.1(32)

  d(32) = 28.8

The problem statement tells you d(32) is the price Marcus pays when the original price is 32.

let's firstly convert the mixed fractions to improper fractions and then divide.

[tex]\stackrel{mixed}{1\frac{1}{3}}\implies \cfrac{1\cdot 3+1}{3}\implies \stackrel{improper}{\cfrac{4}{3}} \\\\[-0.35em] ~\dotfill\\\\ \cfrac{5}{8}\div 1\frac{1}{3}\implies \cfrac{5}{8}\div \cfrac{4}{3}\implies \cfrac{5}{8}\cdot \cfrac{3}{4}\implies \cfrac{15}{32}[/tex]

Answer:

21 pounds

tell me if it helped :P

Step-by-step explanation:

Answer:

The answer is A

Step-by-step explanation:

When you reflect something over the x-axis all of the negative y coordinates become positive.

Answer:

-x² + 4x - 8

Step-by-step explanation:

Given: 2x² - x + 6 is subtracted from x² + 3x - 2

Rewriting: (x² + 3x - 2) - (2x² - x + 6)

Distrubte negative: x² + 3x - 2 - 2x² + x - 6

Combine like terms:  -x² + 4x - 8

Answer: -x² + 4x - 8

Hope this helps, have a nice day :D