help ASAP please plz​

Answer:

0.180144 < p < 0.339856

Step-by-step explanation:

According to the Question,

⇒ standard error of the sample is square root(0.26 * (1-0.26) / 200) = 0.031

⇒alpha(a) = 1 - 99/100 = 0.01

⇒critical probability(p*) = 1 - a/2 = 0.995

⇒assuming a normal distribution, look for the z-score associated with 0.995 cumulative probability , z-score = 2.576

⇒margin of error(ME) = 2.576 * 0.031 = 0.079856

0.180144 < p < 0.339856

Answer:

Look below

Step-by-step explanation:

1: 19

2: 34

3: 63

4: 8

5: 52

6: 81

7: 4

8: 39

9: 18

Hope this helped :)

Answer:

the sum of all angles in a triangle is 180°.

the two triangles got the same angles I suppose

180-85-25 = 70

70° is the answer

Answer:

X = 70

Step-by-step explanation:

Since ABC is similar to XYZ

Angle A is equal to angle X

We can find angle A since the sum of the angles of a triangle is 180

A + B+C = 180

A + 85+25 = 180

A + 110 =180

A = 180-110

A = 70

X = 70

Answer:

Volume of a cone = ⅓volume of a cylinder

Answer:

2a : f(-2) = 15

2b : f(2x) = 8x² - 2x + 5

2c : f(x-1) = 2x² - 5x + 8

3a : x > 1/3

3b : x <> {2,3}

4 : 6x

Step-by-step explanation:

2a.

2×(-2)² - (-2) + 5 = 2×4 + 2 + 5 = 15

2b.

2×(2x)² - 2x + 5 = 2×4x² - 2x + 5 = 8x² - 2x + 5

2c.

2×(x-1)² - (x-1) + 5 = 2×(x² - 2x + 1) - x + 1 + 5 =

= 2x² - 4x + 2 - x + 1 + 5 = 2x² - 5x + 8

3a.

the square root is not defined for negative values, which would happen for any x < 1/3. and for x=1/3 the expression would be a division by 0, which is also undefined.

so, all that is left is x>1/3.

3b.

we must avoid a division by 0. everything else is well defined.

so, when is that expression x² - 5x + 6 = 0 ?

solution for a quadratic equation is

x = (-b ± sqrt(b² - 4ac))/2a

a = 1

b = -5

c = 6

x = (5 ± sqrt(25 - 24))/2 = (5 ± sqrt(1))/2 = (5 ± 1)/2

x1 = (5+1)/2 = 6/2 = 3

x2 = (5-1)/2 = 4/2 = 2

so, these values must be avoided for x. everything else is valid.

4.

(f(x+h) - f(x))/h

for h going to 0.

f(x) = 3x² - 5

f(x+h) = 3×(x+h)² - 5

f(x+h) - f(x) = 3×(x² + 2hx + h²) -5 - 3x² + 5 =

= 3x² + 6hx + 3h² - 3x² = 6hx + 3h²

=>

(f(x+h) - f(x))/h = (6hx + 3h²)/h = 6x + 3h = for h 0 = 6x

Answer:

Step-by-step explanation:

4-3(6)-1

= 4 - 18 - 1

= 4 - 19

= -15 (Ans)

Answer: 80

Step-by-step explanation: Because it is in the middle.

Solution :

Faulty electrical connects = P(A) = 0.80

Mechanical defects = P(B) = 0.92

Mechanical defects are related to loose keys = P(C/B) = 0.27

Improper assembly = P(D/B) = 0.73

Defective wires  = P(E/A) = 0.35

Improper connections = P(F/A) = 0.13

Poorly welded wires = P(G/A) = 0.52

Now, the probability due to loose keys = 0.27 x 0.92 = 0.2484

Improperly connected = 0.13 x 0.80 = 0.1040

Poorly welded wires = 0.52 x 0.80 = 0.4160

So, the probability that a failure is due to improperly connected or poorly welded wires = 0.1040 + 0.4160

                       = 0.5200

Answer:

The correct answer is d

Step-by-step explanation:

A graph of a non-vertical straight line is a linear function

Answer:

x = 3

Step-by-step explanation:

Given the equation :

6x + 5=9x - 4

Collect like terms :

6x - 9x = - 4 - 5

-3x = - 9

Divide both sides by - 3

-3x / - 3 = - 9 / - 3

x = 3

Hence, x = 3

Answer:

y = -1

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Step-by-step explanation:

Step 1: Define

Identify

-4(y - 2) = 12

Step 2: Solve for y

Answer:

-4y+8=12

-4y=12-8

-4y=4

y=-1

Answer:

The answer is B or 15.

Step-by-step explanation:

the total money saved divided by the time is always 15

Answer:

The answer is > (greater than)

Step-by-step explanation:

It is > because if MN is the larger side and the largest angle would be across from the largest side, then that would make the largest angle, angle 2 and that would in turn make 3 the smaller angle. I know this is correct because I got it right.

Answer:

see below

Step-by-step explanation:

tan A = opp / adj = 5/12

sin A = opp / hyp = 5/13

cos A = adj / hyp = 12/13

Answer:

Step-by-step explanation:

25+125+(-5x)=180 degree (sum of the interior angles of a triangle is 180 degree)

150-5x=180

-5x=180-150

x=30/-5

x=-6

Answer:

B. The x variable appears in the denominator.

Step-by-step explanation:

Given

[tex]\frac{5}{x} - y = 1[/tex]

Required

What makes it not linear

First, make y the subject

[tex]y = \frac{5}{x}+1[/tex]

A linear equation is represented as:

[tex]y = mx + b[/tex]

Notice that the exponent of x in the general form is: 1

This means that x has to appear as a numerator

In [tex]y = \frac{5}{x}+1[/tex], the exponent of x is -1

This means that x has to appear as a denominator

Hence, (b) is true

Answer: the required principal value is $7,719.30

Step-by-step explanation:

Given: Formula to calculate interest : I= Prt, P=principal value, r = rate of interest, t = time.

I = $11,000

r= 9.5% = 0.095

t= 15 years

Substitute in formula, we get

[tex]11000=(P)\times (0.095)\times(15)\\\\\Righatrrow\ P=\dfrac{11000}{0.095\times15}\approx\$7719.30[/tex]

Hence, the required principal value is $7,719.30

Answer:

The answers to your questions are given below.

Step-by-step explanation:

A. Determination of the length.

Length (cm) = 32

Length (m) =?

Length (mm) =?

I. Determination of the length in m.

100 cm = 1 m

Therefore,

32 cm = 32 × 1 m / 100 cm

32 cm = 0.32 m

II. Determination of the length in mm

1 cm = 10 mm

Therefore,

32 cm = 32 cm × 10 mm / 1 cm

32 cm = 320 mm

B. Determination of the height.

Height (m) = 1.58 m

Height (cm) =?

Height (mm) =?

I. Determination of the height in cm.

1 m = 100 cm

Therefore,

1.58 m = 1.58 m × 100 cm / 1 m

1.58 m = 158 cm

II. Determination of the height in mm

1 m = 1000 mm

Therefore,

1.58 m = 1.58 m × 1000 mm / 1 m

1.58 m = 1580 mm

C. Determination of the width.

Width (mm) = 36 mm

Width (m) =?

Width (cm) =?

I. Determination of the width in m.

1000 mm = 1 m

Therefore,

36 mm = 36 mm × 1 m / 1000 mm

36 mm = 0.036 m

II. Determination of the width in cm

10 mm = 1 cm

Therefore,

36 mm = 36 mm × 1 cm / 10 mm

36 mm = 3.6 cm

D. Determination of the length.

Width (mm) = 105 mm

Width (m) =?

Width (cm) =?

I. Determination of the width in m.

1000 mm = 1 m

Therefore,

105 mm = 105 mm × 1 m / 1000 mm

105 mm = 0.105 m

II. Determination of the width in cm

10 mm = 1 cm

Therefore,

105 mm = 105 mm × 1 cm / 10 mm

105 mm = 10.5 cm

E. Determination of the length.

Length (m) = 2 m

Length (cm) =?

Length (mm) =?

I. Determination of the length in cm.

1 m = 100 cm

Therefore,

2 m = 2 m × 100 cm / 1 m

2 m = 200 cm

II. Determination of the length in mm

1 m = 1000 mm

Therefore,

2 m = 2 m × 1000 mm / 1 m

2 m = 2000 mm

Summary:

Item >>>>>>>> m >>>> cm >>>> mm

A. Lenght >>> 0.32 >> 32 >>>> 320

B. Height >>> 1.58 >> 158 >>>> 1580

C. Width >>> 0.036 >> 3.6 >>>> 36

D. Length >> 0.105 >> 10.5 >>> 105

E. Width >>> 2 >>>>>> 200 >>> 2000

Answer:.

75(b - 4) = 450

Step-by-step explanation:

Given that :

Total amount to spend on books = 450

Total number of books = b

Cost per book = 75

Number of free books = 4

Hence, the number of books sabah will have to pay for will be :

Total Number of books - number of free books

b - 4

Cost of books purchased will be ;

Cost per book * number of books ;

75 * (b - 4)

Total cost = 450

Hence, we have ;

75(b - 4) = 450

Answer:

look at pic

Step-by-step explanation:

Answer:

cos R = .98

Step-by-step explanation:

cos R = SR/QR

QR is the hypotenuse of the right triangle.  By the Pythagorean theorem

(QR)^2 = (QS)^2 + (SR)^2

           = 9^2 + 40^2

           = 81 + 1600

           = 1681

QR = 41

Cos R = adjacent side/hypotenuse = 40/41 = .98

The value of the cosine of ∠R to the nearest hundreth is  0.98.

A right angle triangle has one of its angles as 90 degrees. The sides and angles can be found using trigonometric ratios.

The sides can also be found using pythagoras theorem. Therefore,

∠S = 90°

RQ = 41

QS = 9

SR = 40

cos R = adjacent / hypotenuse

Therefore,

adjacent side = 40

hypotenuse = 41

cos R = 40 / 41

cos R = 0.97560975609

cos R = 0.98

learn more on right triangle here: https://brainly.com/question/27309330

Answer:

5/9, or 56%, or 0.55...

Step-by-step explanation:

Answer:

5/9

Step-by-step explanation:

Answer:

9) both of them are in cups measurements, plus they are both ingredients you can use to bake something.

10) both are fruits, both are a similar size.

11) both are animals, though the "41 animals" isn't specified to which animal they are.

12) both are blocks

13) both are cars, both have colors

14) both are types of people with different types of hair colors

Answer:

your answer is 12

I've answered it before and got it right

Answer:

Hello! answer: 3

Step-by-step explanation:

Perfect circles are 360 degrees

120 × 3 = 360 therefore the answer would be 3 Hope that helps!

Answer:

b

Step-by-step explanation:

Answer:

21x^3-32x^2+9x+2

Step-by-step explanation:

(3x²- 5x + 2)(7x + 1)

Distribute

7x* (3x²- 5x + 2) + 1 *(3x²- 5x + 2)

21 x^3 -35x^2 +14x + (3x²- 5x + 2)

Combine like terms

21x^3-32x^2+9x+2

Answer:

D. 21x³- 32x²+ 9x + 2

Step-by-step explanation:

( 3 x²- 5 x + 2 ) ( 7 x + 1 )

Using distributive property

7 x ( 3 x²- 5 x + 2 ) + 1 ( 3 x²- 5 x + 2 )

multiply,

21 x ³ - 35 x² + 14 x + 3 x² - 5 x + 2

arranging like terms together

21 x³ - 35 x² + 3 x² + 14 x - 5 x + 2

21 x ³ - 32 x² + 9 x + 2

Answer:

4

Step-by-step explanation:

The Cardinal number of a set can be explained as the number of distinct element in a finite set :

Given the set :

A = (1,2,3,4)

The number of distinct element in the set is :

4, hence, the Cardinal number of the set is 4

Answer:

[tex]y = 3x +1[/tex]

Step-by-step explanation:

Given

[tex]m = 3[/tex]

[tex](x_1,y_1) = (-2,-5)[/tex]

Required

The equation

This is calculated as:

[tex]y = m(x - x_1) + y_1[/tex]

So, we have:

[tex]y = 3(x - -2) -5[/tex]

[tex]y = 3(x +2) -5[/tex]

Open bracket

[tex]y = 3x +6 -5[/tex]

[tex]y = 3x +1[/tex]