Who has hegarty maths as there school home work?

If you do please let me know below :):):):):):):)

Answer:

-63

Step-by-step explanation:

Given the expression:

[tex](1/8)^x + (1/8)^{x-2}[/tex]

Using the law of indices, this can be written as:

[tex](\frac{1}{8})^x-(\frac{1}{8} )^x * (\frac{1}{8})^{-2}\\(\frac{1}{8})^x (1-(\frac{1}{8})^{-2})\\(\frac{1}{8})^x(1-8^2)\\(\frac{1}{8})^x(-63)\\-63(\frac{1}{8})^x\\[/tex]

This shows that the value of A is -63

Answer:

EVERYONE THE ANSWER IS …. 65

Step-by-step explanation:

I did the quiz I hate it :(

Answer:

Option (A)

Step-by-step explanation:

From the figure attached,

By applying triangle sum theorem in ΔBCP,

m∠CBP + m∠CPB + m∠BCP = 180°

15° + 20° + m∠BCP = 180°

m∠BCP = 145°

m∠ACB + m∠BCP = 180° [Linear pair of angles are supplementary]

m∠ACB + 145° = 180°

m∠ACB = 35°

Since, ∠ACB is the inscribed angle and AB is the intercepted arc.

Therefore, m(arc AB) = 2m(∠ACB)

m(arc AB) = 2 × 35°

                 = 70°

Therefore, Option (A) is the correct option.

9514 1404 393

Answer:

  4a. 177

  4b. 248

  5a. 27

  5b. 9

  5c. 12

Step-by-step explanation:

a) x is 3/4 of 1/2 of all, so is 3/8 of all.

  x = 3/8·472

  x = 177

b) x is 2/5 of 2/3 of all, so is 4/15 of all.

  x = 4/15·930

  x = 248

__

Elaine gave her grandmother 3/4 of 48 = (3/4)(48) = 36 of the flowers. Then Elaine had 48 -36 = 12 flowers left.

Her grandmother gave 1/4 of 36 flowers = (1/4)(36) = 9 of the flowers to her neighbor. Elaine's grandmother has 36 -9 = 27 flowers now.

Hey there!

f(x) = 2x^2 + 1

y = 2x^2 + 1

y = 2(3)^2 + 1

3^2

= 3 * 3

= 9

y = 2(9) + 1

2(9) = 18

y = 18 + 1

y = 19

Answer: y = 19

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

The answer is:

f(3) = 19

Work/explanation:

To evaluate the function, I plug in 3 for "x" :

[tex]\rm{f(x)=2x^2+1}[/tex]

[tex]\rm{f(3)=2(3)^2+1}[/tex]

Then, I square 3:

[tex]\rm{f(3)=2\times9+1}[/tex]

Take caution here; we do not add 9 + 1, we multiply 2 times 9 first, and only then, we add 1.

[tex]\rm{f(3)=18+1}[/tex]

[tex]\rm{f(3)=19}[/tex]

Answer:

$34.50

$1.01

Step-by-step explanation:

For these two problems, you must find a percent of a number. Since percentages can easily be turned into decimals, this is easy to do. First, turn the percent into a decimal by moving the decimal point two to the left; so, 6.25% becomes 0.0625. Then, multiply this number by the cost, 32.47. Finally add that, 2.02, to the cost to get the final answer, $34.50. For the next question do the same. Turn the percent into a decimal and then multiply that by the cost to get the total tax, $1.01.

Answer:

B

Step-by-step explanation:

The sample is

A) the voters in his district.

B) the 1500 randomly selected voters receiving the questionnaire.

C) the 120 voters surveyed that are satisfied with the president's job performance.

D) the 480 surveys returned.

Answer:

x = -4

Step-by-step explanation:

2(x−8)=x+5x

Distribute

2x - 16 = x+5x

Combine like terms

2x-16 = 6x

Subtract 2x from each side

2x-16 = 6x-2x

-16 = 4x

Divide by 4

-16/4 = 4x/4

-4 =x

[tex]\boxed{\large{\bold{\textbf{\textsf{{\color{blue}{Answer}}}}}}:)}[/tex]

[tex]\sf{ }[/tex]

find overtime hours:

52-40 = 12

Multiply regular hours by rate:

40 x 16.50 = 660

Multiply rate by 1.5 x overtime hours:

16.50 x 1.5 x 12 = 297

Total = 660 + 297 = 957

Total = $957

Answer:

Step-by-step explanation:

Side - side - side. In fact the two triangles have the side CD in common

Answer:

Man this is confusing

Step-by-step explanation:

Answer:

7+3 = 10

Step-by-step explanation:

if I understand the problem strangeness right, and there is nothing missing in it, then this is the simple answer.

the difference of 12 and 9 is 12-9 = 3.

and then adding this 3 to 7 is 7+3 =10

Answer:

10

Step-by-step explanation:

The difference of 12 and 9 is 3.

Now,

If we add 7 to 3, the answer is 10.

Answer:

The graph for a member's yearly cost for total game tokens purchased would have a y-intercept of (0, 60). However, the nonmember's yearly cost would have a different y-intercept of (0,0). This is because the member's yearly cost has a yearly initial fee of $60, while as the nonmember yearly cost doesn't include an inital fee. Also, the graph for the nonmember's yearly cost would be steeper than the member's graph because the slope 1/5 is greater than 1/10.

Hope this helps (●'◡'●)

The fractions 1/10 and 1/5 convert to 0.1 and 0.2 respectively.

So the equations y = (1/10)x+60 and y = (1/5)x are the same as y = 0.1x+60 and y = 0.2x in that order.

We see that the nonmember cost graph is steeper since the slope 0.2 is larger than 0.1; the further we move away from 0, the steeper the slope. A steeper slope means that you pay more per token. This is the unit cost.

Specifically, you would pay 0.20-0.10 = 0.10 more dollars per token if you are a nonmember compared to if you are a member.

---------------------------

Also, notice that the y intercepts of y = 0.1x+60 and y = 0.2x are 60 and 0 in that order. The members pay an up front fee of $60 before they can buy any tokens. Nonmembers don't have to pay an upfront cost.

Visually, the graph for the members will be much higher up compared to the nonmembers graph. Both lines are increasing, but the members graph is increasing less overall. At some point, the two lines intersect. After this point, it makes more sense to be a member.

Given:

The given value is [tex]-a[/tex].

To find:

The multiplicative inverse of [tex]-a[/tex].

Solution:

We know that [tex]y[/tex] is the multiplicative interval of [tex]x[/tex] if [tex]xy=1[/tex].

Let [tex]x[/tex] be the multiplicative inverse of the given value [tex]-a[/tex]. Then,

[tex](-a)\times x=1[/tex]

Divide both sides by [tex]-a[/tex].

[tex]x=\dfrac{1}{-a}[/tex]

[tex]x=-\dfrac{1}{a}[/tex]

Therefore, the multiplicative inverse of [tex]-a[/tex] is [tex]-\dfrac{1}{a}[/tex]. Hence the correct option is A.

Answer:

B. 24 ft

Step-by-step explanation:

1 in = 3ft

8 in must equal 24 ft since 8 in x 3 ft is 24 ft. So, B.

The length of the boat will be equal to 24 ft.

The scale factor is defined as the proportion of the new image's size to that of the previous image. decision-making.

Given that:-

The actual length will be calculated as follows:-

1 in = 3 ft.

8 in = 8 x 3 ft

8 in = 24 ft.

Therefore the length of the boat will be equal to 24 ft.

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Answer:

sqrt(9) sqrt(4)

Step-by-step explanation:

sqrt(9*4)

We know that sqrt(a*b) = sqrt(a) sqrt(b)

sqrt(9) sqrt(4)

Answer:

The answer would be B

Step-by-step explanation:

Answer:

her speed in still water = 11 km/hour

the speed of the current = 9 km/hour

Step-by-step explanation:

x = Ritu's speed of rowing.

y = the sites of the river water flowing

x + y = 20 km / 2 hours = 10 km / hour

x - y = 4 km / 2 hours = 2 km / hour

x = 2 + y

2 + y + y = 20

2y = 18

y = 9 km/hour

x = 2 + y = 2 + 9 = 11 km/hour

Speed of water while upstream is (x + y) km/hr,

downstream is (x – y) km/hr,

2(x + y) = 20 x + y = 10 ………… (i)

2(x – y) = 4 x – y = 2 …………… (ii)

x + y = 10

x - y = 2

_______________

x = 12

[tex]x = \frac{12}{2} = 6[/tex]

(ii), Substituting the value,

(i), x + y = 10 6 + y = 10 y = 10 – 6

∴ y = 4

∴ Speed of Ritu in still water, x = 6 km/hr. in current water, y = 4 km/hr.

Answer:

196π units^3

Step-by-step explanation:

The volume of a cylinder is:

πr^2h

SINCE, there is no given pi, the formula will be:

r^2h

Use the formula on the given dimensions:

r^2h

= (7^2) 4

= (49) 4

= 196

So we could just leave the final answer as:

196π

The real volume will be solved once π is given.

I hope I helped!

The volume of the cylinder given is 196 π, Option  A is correct.

The volume of the cylinder is given by V=πr²h

Where r is radius of cylinder and h is the height of the cylinder.

V is the volume

r=7

h=4

Now plug in these values in volume formula.

V=π(7)².4

=π.49.4

V=196π

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Answer:

Slope=2/7

Step-by-step explanation:

Slope=rise/run

[tex]rise = 8 - 4 = 4 \\ run = 10 - ( - 4) = 14 \\ slope = \frac{4}{14} = \frac{2}{7} [/tex]

Answer:

[tex]8\sqrt{7}[/tex]

Step-by-step explanation:

[tex]\frac{21}{\sqrt{7} } * \frac{\sqrt{7} }{\sqrt{7} }[/tex] = [tex]\frac{21\sqrt{7} }{7}[/tex]

[tex]\frac{21\sqrt{7} }{7}[/tex] = [tex]\frac{147\sqrt{7} }{14}[/tex]

[tex]\frac{147\sqrt{7} }{14} - \frac{35\sqrt{7} }{14}[/tex]

[tex]\frac{112\sqrt{7} }{14}[/tex]

[tex]8\sqrt{7}[/tex]

Answer:

False

Explanation:

A linear correlation coefficient is used to measure the the level of relationship between two seemingly dependent and independent variables. A relationship exists between two variables in linear correlation if one affects the other, either negatively or positively never zero. If linear correlation has a negative value then one variable increases while the other decreases. If linear correlation coefficient is positive then both variables increase together. If zero then there is no relationship as one variable's increase or decrease has nothing to do with the other. In the case above, correlation is positive at 0.08 hence we can say that there is a relationship between the two variables.

Answer:

x=-5

Step-by-step explanation:

any line parallel to x=a is x=b

line parallel to x=-2 is x=-5

The equation of the line is x = -5.

A linear equation is an algebraic equation of the form y=mx+b, where m is the slope and b is the y-intercept, and only a constant and a first-order (linear) term are included. Sometimes, the aforementioned is referred to as a "linear equation of two variables," with y and x serving as the variables.

The line x = -2 is a vertical line passing through the point (-2, y) for all y. Since we want a line parallel to this line, it must also be a vertical line.

Therefore, the equation of the line that is parallel to x = -2 and passes through the point (-5, 4) is simply x = -5.

So the answer is x = -5.

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Answer:

±2 sqrt(2) / 3

Step-by-step explanation:

cos theta = adj / hyp

cos theta = 1/3

Using the Pythagorean theorem

a^2 + b^2 = c^2

opp ^2 + adj ^2 = hyp ^2

opp ^2 + 1 ^2 = 3^2

opp ^2 +1 = 9

opp ^2 = 9-1

opp ^2 = 8

Taking the square root of each side

opp = ± sqrt(8)

opp = ±2 sqrt(2)

sin theta = opp / hyp

               = ±2 sqrt(2) / 3

The distance from his hotel to his home is 89 miles.

Given - Ronald's home is located 33 miles west and 56 miles north of his hotel.

To find the distance between Ronald's hotel to his home, add the distance.

∴ [tex]33 + 56 = 89[/tex]

Therefore, the distance from his hotel to his home is 89 miles.

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Answer:

Step-by-step explanation:

Answer:

x = 116

Step-by-step explanation:

The sum of the angles of a  4 sided polygon is 360

96+x+64+84 = 360

Combine like terms

x+244=360

Subtract 244 from each side

x+244-244=360-244

x = 116

Sum of all angles of a quadrilateral = 360°

So, 96° + 84° + 64° + x° = 360°

=> 244° + x° = 360°

=> x° = 360° - 244°

=> x° = 116°

=> x = 116

Answer:

-1

Step-by-step explanation:

=-251x3+281 +251x3-1+281

=-1

========================================================

Explanation:

If we plug the coordinates of point A into the inequality, then we get

y ≥ |x| + 3

6 ≥ |-3| + 3

6 ≥ 3 + 3

6 ≥ 6

Which is true. Since we're looking for a non-solution, we rule out choice A.

You should find choice B is a similar story to choice A, so we can rule this out as well.

-----------

Choice C is the answer because

y ≥ |x| + 3

0 ≥ |-3| + 3

0 ≥ 3 + 3

0 ≥ 6

which is false.

Check out the graph below and notice how point C is not in the shaded solution region, and it's not on the boundary either. This is a visual way to quickly find the answer.

The boundary line y = |x|+3 is solid because of the "or equal to". We shade above the boundary line due to the greater than sign.

Avery in 5 minutes sweeps 1 deck, so in 1 minute she sweeps 1/5 of the deck

Madeline in 7 minutes sweeps 1 deck so in 1 minute she sweeps 1/7 of the deck.

1/5 + 1/7 = 7/35 + 5/35 = 12/35

Together they will sweep 1 deck in x minutes : 1/x

12/35 = 1/x =

X = 35/12 = 2.92 minutes. ( round the answer as needed)