66.21 was rounded to 2dp. what is the lower bound?

Answer:

Step-by-step explanation:

2 .

a )

     A - 3

     B - 5

     C  - 16

    D - 3

    E - 1

b)

    i) 16

    ii) 28 / 5 = 5 . 6 ( if we round it off then the answer is 6 )

c)

    Mode of data is - A , B , C , D

Hope this answer helps you :)

Have a great day

Mark brainliest

Answer:

x = 4.29 hours

Step-by-step explanation:

Let

x = number of hours

Stock A at 9.00 AM

13.63 + 0.13x

Stock B at 12.00 pm

14.38 - 0.15(x - 3)

in how many hours will the prices of the two stocks be the​ same?

Equate the change in prices of both stock

13.63 + 0.13x = 14.38 - 0.15(x - 3)

13.63 + 0.13x = 14.38 - 0.15x + 0.45

13.63 + 0.13x = 14.83 - 0.15x

13.63 - 14.83 = -0.15x - 0.13x

-1.2 = -0.28x

x = -1.2/-0.28

x = 4.2857142857142

Approximately,

x = 4.29 hours

Answer:

Step-by-step explanation:

90+35=exterior angle(sum of two interior opposite angle is equal to the exterior angle formed)

125=exterior angle

Answer:

125

Step-by-step explanation:

all the angles inside the triangle should add to 180:

so 180 - 35 - 90 = 55

then since it asked for exterior it should be:

180 - 55 = 125

because it on a straight line and a straight line is 180 it becomes:

125

I can help with more too

Answer:

The rules of dividing integers are similar to the rules of multiplication

The only difference in division is that the quotient may not necessary be an integer. Hence, when dividing two integers with like signs, we divide the numbers without sign and place a positive sign to the result.

Answer:

I do not agree

Step-by-step explanation:

because in multiply negatives, the 2 negatives turn into a positive or multiplying positive and negative (and vice versa) becomes a negative still so the rules of multiplying and dividing are not alike integers. (For dividing it is the same)

Answer:

14.13 units

Step-by-step explanation:

Semicirle is half the circumferene of a full circle. A full circle has a circumfence of 28.26 units.

Answer:

(-3, 4)

Step-by-step explanation:

let the point P(x, y)

x = (5/7 × (-1+8)) + (-8)

= (5/7 × 7) -8 = 5-8 = -3

y = (5/7 × (8+6)) + (-6)

= (5/7 × 14) -6 = 10-6 = 4

so, P => (-3 , 4)

[tex]\\ \rm\Rrightarrow M(x,y)[/tex]

[tex]\\ \rm\Rrightarrow\left(\dfrac{mx_2+nx_1}{m+n},\dfrac{my_2+ny_1}{m+n}\right)[/tex]

[tex]\\ \rm\Rrightarrow\left(\dfrac{-5-16}{7},\dfrac{40-12}{7}\right)[/tex]

[tex]\\ \rm\Rrightarrow\left(\dfrac{-21}{7},\dfrac{28}{7}\right)[/tex]

[tex]\\ \rm\Rrightarrow(-3,4)[/tex]

Answer:

See below

Step-by-step explanation:

y=-2x + 3

y = -2*3x​

Both equations are lines.

Two lines will intersect at one point

I will set the two equations equal and solve for the x coordinate.

-2x+3 = -6x

Add 2x from each side

3 = -4x

Divide by -4

-3/4 = x

Now find y

y = -6x

y = -6(-3/4)

y = 18/4 = 9/2

The solution is ( -3/4, 9/2)

Answer:

no clue sorry. wish i could help.

Answer:

Step-by-step explanation:

To overestimate the area would mean that you completely enclose the circle in squares; an 8 x 8 square to b exact. The area of a square with sides measuring 8 is 64. The overestimation is 64.

To underestimate the area would mean that you only count the squares that are completely inside the circle. That would be a 6 x 6 square (even though the 6th squares are a tiny bit outside the circle). A square with sides of 6 has an area of 36. The underestimation is 36.

Answer:

He should run 28 minutes.

Step-by-step explanation:

It would be 28 due to it being a pattern! I double checked my answer by looking it up.

Answer:

39) Opt. A (24)

Step-by-step explanation:

39) 40 - 8(n) where n = 2

=> 40 - 8*2

=> 40 - 16

=> 24 Opt. A

And just for information, the answer you marked for 38th is wrong.

Formula = bh/2

b = 16

h = 12

bh/2 = 16*12/2

        =192/2 = 96

Hope this helps u

Please mark as brainliest

Thank You

Answer:

6x² - 19x + 15

Step-by-step explanation:

(2x-3) (3x-5)

6x² - 10x - 9x + 15

6x² - 19x + 15

The letter that correctly identifies the base of the prism is "a".

To learn more about prisms, visit :

https://brainly.com/question/12649592

#SPJ1

Given:

The number is [tex]\dfrac{5}{9}[/tex].

To find:

The location of the given number on a number line.

Solution:

We have,

[tex]\dfrac{5}{9}[/tex]

Here [tex]0<5<9[/tex], so [tex]0<\dfrac{5}{9}<1[/tex].

Mark 8 equidistant small lines between 0 to 1 on the number line to divide the number line in 9 equal parts. Then, the 5th mark represent the value  [tex]\dfrac{5}{9}[/tex].

The location of number [tex]\dfrac{5}{9}[/tex] on a number line is shown below.

Step-by-step explanation:

using the formula or so there a²+ b²= c²

so 18² + 80²= 82²

Step-by-step explanation:

A is the 1st term

B is the last term

N is the power of the binomial

n=4 since the greatest power is 4

By finding the 4th root of the 1st and the last term as shown in the attached files

We can find the binomial

Answer:

x=-8

Steps:

Simplify-

−3(−7−x)= x+2/2

Simplify-

−3(−7−x)= 1+ x/2

Multiply both sides by 2-

−6(−7−x)=2+x

Expand-

42+6x=2+x

Subtract 2 from both sides-

42+6x−2=x

Simplify-

6x+40=x

Subtract 6x from both sides-

40=x−6x

Simplify-

40=−5x

Divide-

-40/5=x

Simplify-

-8=x

Switch sides-

x=-8

I believe this is correct, if not let me know and I will fix it.

Answer:

I think the answer is C.

Step-by-step explanation:

The law of exponents states that when you divide the same base you subtract the exponents.

Answer:

Snow accumulated faster in Harris. 0.50

Answer:

The value of x is incorrect he should be using 28/21 instead of 21/28

Step-by-step explanation:

tan = opp/adj

tanx = 28/21

The value of x is incorrect he should be using 28/21 instead of 21/28

Answer:

A) The value of x is incorrect. He should be using 28/21 instead of 21/28.

Step-by-step explanation:

Recall that [tex]tan\theta=\frac{opposite}{adjacent}[/tex]. This means that the correct setup would be [tex]tan\theta=\frac{28}{21}[/tex] since 28 is opposite of x° and 21 is adjacent to x°. Thus, your solution would be [tex]x^{o}=tan^{-1}(\frac{28}{21})=53.13010235^o\approx53.1^o[/tex]

Answer:

1/2

Step-by-step explanation:

it is closet to a 1/2

Answer: hello your question lacks vital data hence I will provide you with a general equation within the scope of your question

answer :

General equation = ( Stiver and Mackay or EPA ) evaporation equations

E = [tex]\frac{PAW}{T +459.67}[/tex]  or  E = [tex]\frac{7.4PA(0.447W)^{0.8} }{T + 459.67}[/tex]

Step-by-step explanation:

Given data

volume of water in pool = 0.9 i.e. 90% full

rate of evaporation = 7.5ft^3  per day = 56.1039 gallons / day

Assumption :

Volume of pool = 16,000 gallons

In order to resolve the missing part of the problem  apply the equation below

E = [tex]\frac{PAW}{T +459.67}[/tex]   or   E = [tex]\frac{7.4PA(0.447W)^{0.8} }{T + 459.67}[/tex]

where : E = Evaporation rate , P = water's vapor pressure ,  A = pool surface Area , W = wind speed ,  T = Temperature in Fahrenheit

Answer:

21

Step-by-step explanation:

You got it right.

Answer:

50%. 18 is half of 36 therefore it is 50% of 36

Answer:

50%

Step-by-step explanation:

hope this helps