need some help with this question in the image

Cheers​

Need Some Help With This Question In The ImageCheers

Answers

Answer 1

Step-by-step explanation:

a) 24.7×52.3=1291.81

On rounding off to 3 significant digits we get

1290

b)

[tex] \sqrt{ {42}^{2} - {28}^{2} } [/tex]

[tex] \sqrt{1764 -784 } = \sqrt{980} [/tex]

=31.304951

On rounding off to 5 significant figures we get

=31.305

c)

[tex] \sqrt[3]{78} = 4.27265[/tex]

On rounding off to 2 significant figures we get

=4.3

Hence required answers

a)1290

b)31.305

c)4.3

I hope it helped you


Related Questions

How does the value of the digit 3 in the number 63,297 compare to the value of
the digit 3 in the number 60,325? Be sure to include what you know about place
value in your answer.
Explain

Answers

Answer:

Look below

Step-by-step explanation:

The digit three is in the thousands place in the number 63,297, so it represents 3,000. The digit three is in the hundreds place in the number 60,325, so it represents 300.

pls help with this math problem

Answers

-1.5. -1 1/2. -3/2






yeah so its this i’m 99.98% sure

what is the solution to w - 9 1/2 = 15
24 1/2
6 1/2
23 1/2
5 1/2​

Answers

Answer:

Option A

Step-by-step explanation:

Convert mixed fraction to improper fraction.

[tex]\sf w - 9\dfrac{1}{2}=15\\\\ w - \dfrac{19}{2}=15[/tex]

Now isolate 'w'

[tex]\sf w = 15 +\dfrac{19}{2}\\\\= \dfrac{15*2}{1*2}+\dfrac{19}{2}\\\\=\dfrac{30}{2}+\dfrac{19}{2}\\\\=\dfrac{30+19}{2}\\\\=\dfrac{49}{2}\\\\= 24\dfrac{1}{2}[/tex]

Answer:

[tex]\huge\boxed{\bf\:w = \frac{49}{2} = 24\frac{1}{2} = 24.5}[/tex]

Step-by-step explanation:

[tex]w - 9 \frac { 1 } { 2 } = 15[/tex]

Multiply both the sides of the equation by 2.

[tex]2w-\left(9\times 2+1\right)=30 \\2w-\left(18+1\right)=30 \\2w-19=30[/tex]

Bring [tex]19[/tex] to the left hand side of the equation.

[tex]2w=30+19 \\2w=49 \\\boxed{\bf\:w = \frac{49}{2} = 24\frac{1}{2} = 24.5}[/tex]

[tex]\rule{150pt}{2pt}[/tex]

Please help! Will give brainiest for best answer! (28 points max.) (Problem is below!)

Answers

Answer:

its b

Step-by-step explanation:

i cant explain it just trust me

Answer:

B

it doesn't have 8 sides so it can't octagon and it can't be a heptagon bc it doesn' thave 7 sides. hope this helps

The volume of this CONE is 175π cubic units.

What is the volume of a CYLINDER with the same radius and the same height?

Answers

Answer:

1649.33 units³

Step-by-step explanation:

Let the height and the radius be known as "h" and "r" respectively.

Formulae(s):

Volume of cylinder: πr²hVolume of cone: πr²h/3

Clearly, we can see that the volume of the cylinder is three times greater than the volume of the cone as,

⇒ πr²h = 3(πr²h/3)⇒ πr²h = πr²h (True)

Determining the volume of the cylinder;

⇒ Volume of cylinder = Volume of cone × 3⇒ Volume of cylinder = 175π × 3⇒ Volume of cylinder = 525π⇒ Volume of cylinder = 1649.33 units³   (2 d.p)

Therefore, the volume of the cylinder is 1649.33 units³.

Write the slope intersect form of the equation.

Through (8,1) perpendicular to y =1/2x +2

Answers

Answer:

Step-by-step explanation:

y= -(1/2)x - 5

A force of 61 N is applied to an area of 750 cm2.
Calculate the pressure in N/m2.
Give your answer to the nearest integer.

Answers

Step-by-step explanation:

Area750 cm² = 750 × 10^-4 m²

pressure = F/A

= 61 /(750×10^-4)

= 61 × 10⁴/750

= 0.081 × 10⁴

= 810 N/ m²

Answer:

813N/m^2

Step-by-step explanation:

Pressure is defined as the amount of force applied to an area. There are 100cm in a single meter, therefore:

[tex]750cm^2=\sqrt{750} cm\frac{1}{100} \frac{m}{cm} =\frac{\sqrt{750} }{100} m=0.075m^2[/tex]

Pressure formula is:

[tex]P=Force/Area=61N/0.075m^2=813N/m^2[/tex]

Determine the equation of the circle graphed below.

Answers

[tex]\bold{ANSWER:}[/tex]
(x + 7)^2 + (y - 2)^2 = 4

[tex]\bold{EXPLANATIONS:}[/tex]

PAOLA GAVE AWAY 42 OF HER BOOKS SHE NOW HAS 150 BOOKS CALCULATE THE PERCENT CHANGE

HINT: how many books did she HAVE

please help me

Answers

Answer:

21.875%

Step-by-step explanation:

We need an equation to represent this problem,

Let x be the number of books she had before giving away 42 of them,

x - 42 = 150

To find out how many books she had before turn the problem around and add 42 with 150,

150 + 42 = x

⇒ x = 192

Now that you know that divide 42 by 192,

Let n be the quotient of 42/192

42/192 = n

⇒ n = 0.21875

Now to turn that into a percent move the decimal 2 spaces to the left,

0.21875

⇒ 2.1875

⇒ 21.875%

Therefore there was a 21.875% change.

What is the density of a 60-gram pyramid with rectangular base 5 cm x 7 cm and height 9 cm?

Answers

Answer:

0.571428571429 grams per cm³

Step-by-step explanation:

density = mass/volume

Let’s calculate the volume V of the pyramid :

V = (1/3)×base×height

   = (1÷3)×(5×7)×9

   = 105 cm³

Then

The density = mass/volume

                    = 60÷105

                    = 0.571428571429

What's are all the answers? Tap on the image.​

Answers

Answer:

I think B, C,  and F are the answers.

Step-by-step explanation:

pls pls pls pls pls pls pls answer it pls :(

Answers

Answer:

1. BC≅DC ; AC≅EC

2. ∠BCD≅∠ACE and ∠BCA≅∠DCE

3. SAS (side angle side)

Step-by-step explanation:

What is the solution to the system of equations graphed below? A. (0, 2) B. (–2, 1) C. (0, –3) D. (–4, 0)

Answers

Answer:

B

Step-by-step explanation:

the solution to the system is at the point of intersection of the 2 lines.

the lines intersect at (- 2, 1 )

then solution to system is (- 2, 1 )

Mary has been put in charge of buying soft drinks and chips for a party. If the soft drinks total $25
and chips are $3.29 per bag, how many bags of chips can Mary buy if she wants to spend at most?

Answers

Answer: 22

Step-by-step explanation: She will have $75 To spend on drink and that can buy 75/3.29 chips

Can someone help me with number 4 please

Answers

Answer:

Step-by-step explanation:

Y = kx is the direct variation equation. First find k, the could variation. 16 = k * 20. Divide both sides by 20. 16/20 = k 4/5 = k. The direct variation is "y=kx" . As "x" increases the value of "y" increases.

A recipe needs 34 cup of water for every 2 cups of flour. If you plan to use 6 cups of flour, how much water will you need?

Answers

Answer:

102 cups of water

Step-by-step explanation: If you need 34 cups of water for every 2 cups of flour, you can cut the 6 in half to get 3. 3 times 34 is 102.

Complete the table of values for the equation y = 3x + 5.

Answers

f(x)=3x+5

f(-2)=3×(-2)+5

= -6+5

=-1

f(-1)=3×(-1)+5

=-3+5

=2

f(0)=3×0+5

=0+5

=5

f(1)=3×1+5

=3+5

=8

f(2)=3×2+5

=6+5

=11

I need help NOW asp please!!!!

Answers

Answer:

Option A, [tex]385.0\ ft^2[/tex]

Step-by-step explanation:

Step 1:  Determine the area of the base

[tex]A = l * w[/tex]

[tex]A = 11\ ft * 11\ ft[/tex]

[tex]A = 121\ ft^2[/tex]

Step 2:  Determine the area of the triangles

[tex]A = \frac{h * b}{2}[/tex]

[tex]A = \frac{12\ ft * (11\ ft / 2)}{2}[/tex]

[tex]A = \frac{12\ ft * 5.5\ ft}{2}[/tex]

[tex]A = \frac{66\ ft^2}{2}[/tex]

[tex]A = 33\ ft^2[/tex]

There are two of these triangles per side which means that there are 8 of these triangles in total.  

[tex]33\ ft^2 * 8[/tex]

[tex]264\ ft^2[/tex]

Step 3:  Determine the surface area

[tex]SA = 121\ ft^2 + 264\ ft^2[/tex]

[tex]SA = 385\ ft^2[/tex]

Answer: Option A, [tex]385.0\ ft^2[/tex]

The answer is a. 385 ft is the answer because 11x11 plus 11x12/2 for all four triangular sides equals 385. Hope that helps! :)

5/3 divided by (-6/7).
Write your answer in simplest form.

Please please Help me!! ​

Answers

Answer:

-1  17/18

Step-by-step explanation:

I solved this.

Answer:

[tex]-\frac{35}{18}[/tex]

Step-by-step explanation:

[tex]\frac{5}{3}[/tex] ÷ [tex]-\frac{6}{7}[/tex] is the same as [tex]\frac{5}{3}[/tex] × [tex]-\frac{7}{6}[/tex]

Multiply across:

5 x 7 = 35

3 x 6 = 18

Applying the negative sign, we get:

[tex]-\frac{35}{18}[/tex]

Since we cannot simplify any further, -35/18 is out final answer.

Hope this helps!

If P and Q are points on a circle, then the center of the circle must be on the perpendicular bisector of chord P Q. Explain. Which point on the chord is closest to the center? Why?

Answers

The center of the circle must be on the perpendicular bisector of chord PQ since it passes through the center.

What is a perpendicular bisector?

It should be noted that a perpendicular bisector simply means a line the intersect another line through the intersection point.

In this case, the center of the circle must be on the perpendicular bisector of chord PQ since it passes through the center. This bisects it at a right angle. The chord closer to the centimeter will be the one closer to the diameter.

Learn more about circles on:

https://brainly.com/question/24375372

#SPJ1

A scale drawing of Jack's living room is shown below: A rectangle is shown. The length of the rectangle is labeled as length equal to 6 cm, and the width is labeled as width equal to 4 cm. If each 1 cm on the scale drawing equals 5 feet, what are the actual dimensions of the room? (5 points) Length = 11 feet, width = 9 feet Length = 30 feet, width = 20 feet Length = 8 feet, width = 12 feet Length = 22 feet, width = 20 feet

Answers

Answer:

  (b)  Length = 30 feet, width = 20 feet

Step-by-step explanation:

The scale factor is applied to the drawing dimensions to find the actual dimensions.

__

  length = (6 cm) × (5 ft)/(1 cm) = 30 ft

  width = (4 cm) × (5 ft)/(1 cm) = 20 ft

_____

Additional comment

You can also write the scale factor as part of a proportion:

  5 ft : 1 cm :: x ft : 6 cm

Multiplying by 6 cm gives

  (5 ft)(6 cm)/(1 cm) = x ft = 30 ft . . . . as above

A semicircular window has a diameter of 10m what is the perimeter of the window use 3. 14 for pi ?


Please help it’s worth 20 points!!!

Answers

Answer:

25.7 m

Step-by-step explanation:

Semicircles are half circles that are divided at the diameter.

We want to find the semicircle arc.

To do this, just find the circumference of the circle and then divide by 2.

Circumference formula:

2rπ or Dπ

10π = 31.4

31.4 / 2 = 15.7

Now, we have to find the straight line part of the semicircle. The length of that straight line is the diameter. We already know that the diameter is 10.

Add

15.7+10 = 25.7


A local dairy has three machines to fill half-gallon milk
cartons. The machines can fill the daily quota in 5
hours, 6 hours, and 7.5 hours, respectively. Find how
long it takes to fill the daily quota if all three machines
are running.

Answers

Answer:

Step-by-step explanation:

let's assume the quota is 1

1=the time each machine takes to fill the quota thus;

1=5hrs what about 1hr=1/5

1=6hrs what about 1hr =1/6

1=7.5hr what about 1hr =2/15

add: 1/5+1/6+2/15=1/2 reciprocate

=2hrs

Which statement is true?

The value of 4,576 x (2,480 + 3) is 3 more than the value of 4,576 x 2,480.
The value of 2,550 x (1,588 − 4) is 4 less than the value of 2,550 x 1,588.
The value of 2,943 x 5,682 + 6 is 6 times the value of 2,943 + 5,682.
The value of 4,530 − 2,356 is half the value of 2 x (4,530 − 2,356).

Answers

Answer: Last option is true,

Step-by-step explanation: All other option are false

Answer:

D

Step-by-step explanation:

What is the missing step in solving the inequality 4(x – 3) 4 < 10 6x? 1. the distributive property: 4x – 12 4 < 10 6x 2. combine like terms: 4x – 8 < 10 6x 3. the addition property of inequality: 4x < 18 6x 4. the subtraction property of inequality: –2x < 18 5. the division property of inequality: ________ x < –9 x > –9 x < x is less than or equal to negative startfraction 1 over 9 endfraction. x > –x is greater than or equal to negative startfraction 1 over 9 endfraction.

Answers

The missing step in solving the inequality is x > -9

How to determine the missing step?

The inequality is given as:

4(x – 3) + 4 < 10 + 6x?

The steps are given as:

the distributive property: 4x – 12 + 4 < 10 + 6x combine like terms: 4x – 8 < 10 + 6x the addition property of inequality: 4x < 18 + 6x the subtraction property of inequality: –2x < 18

The next step in solving the inequality is to apply the division property of inequality by dividing both sides by -2.

This gives

x > -9

Hence, the missing step in the inequality is x > -9

Read more about inequality at:

https://brainly.com/question/25275758

#SPJ4

Which expression is equivalent to (4 x cubed) (2 x) superscript negative 4?

Answers

Answer:

section covers somplifying algebraic expressions

Step-by-step explanation:

(4[tex]x^{3}[/tex])(2[tex]x^{-4}[/tex]) = [tex]\frac{4x^{3} }{2x^{4} }[/tex] = 2/x⇒

Answer:

A) 1/4x

Step-by-step explanation:

Cause I took the test and got it right

what is 2/3 divided by 3/4 please answer

Answers

Answer:

[tex]\frac{2}{3}\div\frac{3}{4}\\= \frac{2}{3}\times\frac{4}{3}\\= \boxed{\frac{8}{9}}[/tex]

Answer:

2/3÷3/4

8/9 is the answers for the question

Step-by-step explanation:

please mark me as brainlest

Graph the line with slope 3/2 and y-intercept 3. ​

Answers

Answer:

The steepness of any incline can be measured as the ratio of the vertical change to the horizontal change. For example, a  5 % incline can be written as  5100 , which means that for every  100  feet forward, the height increases  5  feet.Figure  4.4.1 In mathematics incline of a line the slope and use the letter  m  to denote it. The vertical change is called the rise and the horizontal change is called the run.Slopem=vertical changehorizontal change=riserun(4.4.1)The rise and the run can be positive or negative. A positive rise corresponds to a vertical change up and a negative rise corresponds to a vertical change down. A positive run denotes a horizontal change to the right and a negative run corresponds to a horizontal change to the left. Given the graph, we can calculate the slope by determining the vertical and horizontal changes between any two points.Example  4.4.1 Figure  4.4.2 From the given points on the graph, count  3  units down and  4  units right.m=riserun=−3units4units=−34 the Answer is.m=−34 .

Step-by-step explanation:

Find three fractions that are equivalent to 1/3

Answers

2/6 3/9 4/12 those are all equivalent to 1/3

Step-by-step explanation:

The fractions equivalent to 1/3 are 2/6, 3/9, 4/12, etc. Equivalent fractions have the same value in the reduced form.

ALLL these fraction are in highest form while there lowest form is 1 / 3

PLEASE MARK ME BRAINLIEST IF MY ANSWER IS CORRECT PLEASE

√x^2+6x+9 if x<3

Pls help cant solve it

Answers

Answer:

F(x) < 6

Step-by-step explanation:

[tex]\sqrt{(x^2 + 6x +9)} = \sqrt{(x+3)(x+3)} = \sqrt{(x+3)^2\\}[/tex]

This can be simplified to (x+3) and so if x is less than 3, f(x) is less than 6

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