What must an arithmetic sequence have? Question 2 options: common difference common ratio difference of two squares polynomials

[tex]{\pmb{\bf{Refer \: to \: the \: attachment \: :D}}}[/tex]

Answer:

Is letter B the correct one.

Step-by-step explanation:

If you take that 12 and then multiply it x1, x2, x3, x4, x5, x6, x7 and x8 you will get the numbers in the Chart.

Answer:

Total tickets = 70

Total cost = $550

Adult's ticket = $9

Child's ticket = $5

Difference = 9 - 5 = $4

Assume all 70 are child's tickets

5 x 70 = 350

But the total cost was 550

550 - 350 = $200

The $200 must have come from Adult's tickets, which has a difference of $4.

200 ÷ 4 = 50

So there are 50 adult's tickets.

70 - 50 = 20

And there are 20 child's tickets.

Hope this helps - Itz.Jordan

Answer:

The original mixture contains 41.4 ounces of glycol. for this to be 30 percent of the mixture, the total mixture must be 138 ounces, so 46 ounces of water must be added.

Answer:

The confidence level is the percentage of times you expect to get close to the same estimate if you run your experiment again or resample the population in the same way. The confidence interval consists of the upper and lower bounds of the estimate you expect to find at a given level of confidence.

0.2 iis the answer you are loooking for when you say pal is not formed

Answer:

c. anytime

Step-by-step explanation:

if it is stated that a = b, then a always equals b

Answer:

its the first second and third ones:)

Step-by-step explanation:

I just took the test and got a 100%

I hope this helps:) <3

Figure A, B, D have point symmetry.

Point Symmetry is when every part has a matching part the same distance from the central point but in the opposite direction. It looks the same when viewed from opposite directions (180° rotation).

Try imagining how each of the figure will look after rotating it for 180°.  If it looks exactly same as the original figure, it has point symmetry.

Learn more about point symmetry here

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Answer:

Step-by-step explanation:

[tex]\frac{1}{9}[/tex] ÷ 8

= [tex]\frac{1}{9}[/tex] * [tex]\frac{1}{8}[/tex]

= [tex]\frac{1}{9*8}[/tex]

= [tex]\frac{1}{72}[/tex]

Now

[tex]\\ \rm\rightarrowtail 1/9\div (8)[/tex]

[tex]\\ \rm\rightarrowtail 1/9(1/8)[/tex]

[tex]\\ \rm\rightarrowtail 1/72[/tex]

Done

Using the t-distribution, as we have the standard deviation for the sample, we have that the test statistic is given by:

[tex]t = \frac{-20 - 0}{\sqrt{\frac{32.66}{7}}}[/tex]

At the null hypothesis, it is tested if there is no difference, that is:

[tex]H_0: \mu = 0[/tex]

At the alternative hypothesis, it is tested if there is a difference, that is:

[tex]H_1: \mu \neq 0[/tex]

The test statistic is given by:

[tex]t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}[/tex]

The parameters are:

In this problem, [tex]\mu = 0[/tex] is tested at the null hypothesis, and the sample is: 20, -40, -40, 0, 20, - 60, -40, hence:

[tex]\overline{x} = -20, s = \sqrt{32.66}, n = 7[/tex].

Hence, the test statistic is:

[tex]t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}[/tex]

[tex]t = \frac{-20 - 0}{\frac{\sqrt{32.66}}{\sqrt{7}}}[/tex]

[tex]t = \frac{-20 - 0}{\sqrt{\frac{32.66}{7}}}[/tex]

More can be learned about the t-distribution at https://brainly.com/question/16313918

Answer:

C

since volume of rectangular prism is given by V=wlh

the volume of the small cubic blocks is (1/5)^3= 1/125

hence we need 4 of the small cubic blocks.

Answer:

Mark will save $20 in 17 weeks, but there is no equation for Jen.

Step-by-step explanation:

y = x + 3

1) replace y with $20

20 = x + 3

2) subtract 3 from both sides

17 = x

Answer:

[tex]\frac{34}{12}[/tex] , [tex]\frac{51}{18}[/tex] , [tex]\frac{68}{24}[/tex] , [tex]\frac{85}{30}[/tex]

some equivalent fraction examples of [tex]\frac{17}{6}[/tex]:

Therefore the equivalent fractions are [tex]\frac{34}{12}[/tex] , [tex]\frac{51}{18}[/tex] , [tex]\frac{68}{24}[/tex] , [tex]\frac{85}{30}[/tex]

Answer:

their velocities are identical

Step-by-step explanation:

T1 = 6.0 h and T2 = 12 hours

V1 = d/6 and V2 = 2d/12

so V1 = V2 = d/6

The ratio of velocities of bird 1 and bird 2 is 1, as per linear equation.

"A linear equation is an equation in which the highest power of the variable is always 1. It is also known as a one-degree equation. When this equation is graphed, it always results in a straight line. "

Let, the distance covered by the bird 1 is x km.

Then, the distance covered by the bird 2 is 2x km.

Given, the time taken by bird 1 to reach the destination is 6 hours.

The time taken by bird 2 to reach the destination is 12 hours.

Therefore, velocity of the bird 1 is = [tex]\frac{x}{6}[/tex] km/hour.

Velocity of the bird 2 is = [tex]\frac{2x}{12}[/tex] km/hour =  [tex]\frac{x}{6}[/tex] km/hour.

Therefore, the ratio of velocities of bird 1 and bird 2 is

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

= 1

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Answer:

1st statement

Step-by-step explanation:

The line inside the box is the median.
Since in Class A the median line is on around 80 whilst Class B's median is 75.

So Median of

Class A > Class B

Step-by-step explanation:

we can idnetify that it is arithmetic due to it being a linear sequnce. Therefore we find Tn and equate it to the last term to find the number of terms. We then use that to find the sum of the series using the following formula where n is the number of terms, a is the first term and L represents your last term.

Answer:

Given that:

[tex]\longmapsto{ \large{ \rm{y = \sin \:x \degree}}}[/tex]

We know that,

[tex] \dashrightarrow{ \boxed{ \red{ \rm{1 \degree = \left ( \frac{\pi}{100} \right)^{c} }}}}[/tex]

So, using this, above given can be written as,

[tex]{ \large{ \longrightarrow{ \rm{y = \sin \left( \frac{\pi x}{180} \right) }}}}[/tex]

On differentiating both sides w.r.t. x, we get:

[tex]{ \large { \longrightarrow{ \rm{ \frac{d}{dx}y = \frac{d}{dx} \sin \left( \frac{\pi x}{180} \right) }}}}[/tex]

We know that,

[tex]{ \dashrightarrow{ \boxed{ \red{ \rm{ \frac{d}{dx} \sin x = \cos x }}}}}[/tex]

So, using the result, we get:

[tex]{ \large{ \longrightarrow{ \rm{ \frac{d}{dx} = \cos \left( \frac{\pi \: x}{180} \: \right) \frac{d}{dx} \left( \frac{\pi \: x}{180} \right) }}}}[/tex]

We know that,

[tex]{ \dashrightarrow{ \boxed{ \red{ \rm{ \frac{d}{dx}k \: f(x) = k \frac{d}{dx} \: f(x)}}}}}[/tex]

So, using this, we get:

[tex]{ \large{ \longrightarrow{ \rm{ \frac{dy}{dx} = \cos \left( \frac{\pi \: x}{180} \right) \: \times \: \left( \frac{\pi}{180} \right) \frac{d}{dx} x}}}}[/tex]

We know that,

[tex]{ \dashrightarrow{ \boxed{ \red{ \rm{ \frac{d}{dx} x= 1 }}}}}[/tex]

So, using this, we get:

[tex]{ \large{ \longrightarrow{ \rm{ \frac{dy}{dx} = \left( \frac{\pi}{180} \right) \: \cos \left( \frac{\pi \: x}{180} \right ) \times 1}}}}[/tex]

Hence:

[tex]{ \large{ \leadsto{ \green{ \rm{ \frac{dy}{dx} = \left( \frac{\pi}{180} \right) \cos \left( \frac{\pi \: x}{180} \right) }}}}}[/tex]

[tex]{ \large{ \leadsto{ \green{ \rm{ \frac{dy}{dx} = \left( \frac{\pi}{180} \right) \cos \: x \degree }}}}}[/tex]

[tex] \: \: [/tex]

Learn More:

[tex] \boxed{\begin{array}{c|c}\bf f(x)&\bf\dfrac{d}{dx}f(x)\\ \\ \frac{\qquad\qquad}{}&\frac{\qquad\qquad}{}\\ \sf k&\sf0\\ \\ \sf sin(x)&\sf cos(x)\\ \\ \sf cos(x)&\sf-sin(x)\\ \\ \sf tan(x)&\sf{sec}^{2}(x)\\ \\ \sf cot(x)&\sf-{cosec}^{2}(x)\\ \\ \sf sec(x)&\sf sec(x)tan(x)\\ \\ \sf cosec(x)&\sf-cosec(x)cot(x)\\ \\ \sf\sqrt{x}&\sf\dfrac{1}{2\sqrt{x}}\\ \\ \sf log(x)&\sf\dfrac{1}{x}\\ \\ \sf{e}^{x}&\sf{e}^{x}\end{array}}[/tex]

Answer:

a) i) y = - 5/3

  ii) y = 4/3

b) i) x = 1

   ii) x = -3/4

Step-by-step explanation:

[tex]y=\dfrac23x +\dfrac13[/tex]

a) i) [tex]x=-3[/tex]

[tex]\implies y=\dfrac23(-3) +\dfrac13\\\\\\\implies y=\dfrac{-6}{3} +\dfrac13\\\\\\\implies y=\dfrac{1-6}{3} \\\\\\\implies y=-\dfrac53[/tex]

ii) [tex]x=1\frac12=\dfrac32[/tex]

[tex]\implies y=\dfrac23\left(\dfrac32\right) +\dfrac13\\\\\\\implies y=\dfrac{6}{6}+\dfrac13\\\\\\\implies y=\dfrac{3}{3}+\dfrac13\\\\\\\implies y=\dfrac{3+1}{3}\\\\\\\implies y=\dfrac43[/tex]

b) i) [tex]y=1[/tex]

[tex]\implies \dfrac23x +\dfrac13=1\\\\\\\implies \dfrac23x =1-\dfrac13\\\\\\\implies \dfrac23x =\dfrac23\\\\\\\implies x =1[/tex]

ii) [tex]y=-\dfrac16[/tex]

[tex]\implies \dfrac23x +\dfrac13=-\dfrac16\\\\\\\implies \dfrac23x =-\dfrac12\\\\\\\implies x =-\dfrac12 \div \dfrac23=-\dfrac12 \times\dfrac32=-\dfrac34[/tex]

Answer:

>

Step-by-step explanation:

8-4x>-4

4x>8+4

4x>12

x>3

Answer:
The fox is faster, by 7 miles per hour

Step-by-step explanation:

The fox can run 21 miles in half an hour -> It can run 42 miles in an hour

And the rabbit can run 35 miles per hour, so the fox run fastest by 42-35 = 7(m/h)

Answer:

the fox can run faster by 17 mph!

Step by step explanation:

This problem involves ratios

Our two ratios involve the distance the animals ran (the 35 & 21) and the time it took for them to run that distance (the 1 & 0.5)

So our two ratios are 1:35 (it took the rabbit 1 hour to run 35 miles) and 0.5:21 (it took the fox half an hour to run 21 miles)

But before we start subtracting, we have to take into account the fact that the time periods are not the same!

To start subtracting, we need to 0.5 and 1 to be the same or vice versa, the 1 to be a 0.5

In this case, let’s make the 0.5:21 bigger because it’s often easier to multiply than divide

When we multiply 0.5 by 2, it gets us to 1 so we have to do the same to the 21.

21x2=42

So our new ratio is 1:42

Now we can directly compare the two ratios.

42-35=17

So the fox ran faster by 17 miles

PLEASE AWARD BRAINLIEST I NEED TO LEVEL UP!

Answer:

348in

Step-by-step explanation:

29×12=348

hope this helps

Answer:

75%

Step-by-step explanation:

Answer: 25

Step-by-step explanation:

Answer:

y = 6 sin(2x+π/2) +4

Step-by-step explanation:

Given:

-sinusoidal function

-maximum point at (0,10)

-intersects its midline at (π/4,4)

Build the function:

y = sin x , we start with this because is a sinusoidal function

y = sin (x+ π/2), to move the maximum on the y-axis where x= 0

y = sin (2x +π/2), to move the midline from π/2 to a π/4 we need

y = 4+ sin(2x+π/2) , to move the midline from (π/4, 0) to  a (π/4, 4)

y = 4+ 6 sin(2x+π/2), to move the max at (0,10), -because the midline is at 4 and the function max at 10 we need 10-4 = 6

Answer:

Sum of two angles is 90°: Sum of two angles is 180°

Complementary Angles: Supplementary Angles

Step-by-step explanation:

The supplementary angle theorem states that if two angles are supplementary to the same angle, then the two angles are said to be congruent.

Rewrite the percent as a decimal by moving the decimal 2 places to the left:

150% = 1.50

multiply her original pay by the decimal:

9 x 1.50 = $13.50

Answer: $13.50

Answer:

Rewrite the percent as a decimal by moving the decimal 2 places to the left:

150% = 1.50

multiply her original pay by the decimal:

9 x 1.50 = $13.50

Answer: $13.50

Step-by-step explanation:

Answer: 132 degrees

Step-by-step explanation:

Answer:

(-6,9)

Step-by-step explanation:

x + y = 3

0 + y = 9

We can subtract the two equations.

(x-0) + (y-y) = (3-9)

x=-6

y=9

(-6,9)