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factorise: 21x² - 55x + 14​​

Answer:

B. [tex]4\sqrt{2}[/tex]

Step-by-step explanation:

EG is equal to 4

ED and DG, however, are equal to [tex]x\sqrt{2}[/tex]

So, we can do [tex]x\sqrt{2} = 4[/tex]

This comes out to [tex]x=2\sqrt{2}[/tex]

So, [tex]x^{2}[/tex] is the area of the square.

[tex]2\sqrt{2} ^{2}[/tex] is equal to [tex]4\sqrt{2}[/tex]

Answer:

No

Step-by-step explanation:

Put x = 2 into both equations:

For x- 10 = 2-10 = 8 (Not  > 8)

For -0.5x-4 = -0.5*2-4 = -5 (Not < -8)

Hence, the answer is no.

V = 1/3 x B x H

Solve for B:

Multiply both sides by 3:

3v = B x H

Divide both sides by H

B = 3V/H

The answer is C

Answer:

11

Step-by-step explanation:

30-2(7+2)-1

30-2(9)-1

30-18-1

12-1

11

Answer: Thy answer to ye question is 11

Step-by-step explanation:

Answer = one hundred fifty five degrees (155°)

Answer:

99

Step-by-step explanation:

Answer:

=99

Step-by-step explanation:

The September finance charge will be greater by $0.41 if the purchase occurred on September 7th and the payment occurred on September 20th than the payment occurred on September 7th and the purchase occurred on September 20th.

The average daily balance totals each day's balance for the billing cycle and divides by the total number of days in the billing cycle.

When the payment occurred on 7th and purchase on 20th:

Balance in between September 1st and September 7th = $449.22

Balance in between September 7th and September 20th =449.22-85.33=$363.89

Balance in between September 20th and September 30th = 363.89+60.99

=$424.88

So, the balance on which interest will be applied according to the daily balance method = (449.22 * 6+363.89 *  13+424.89 *11)/30 = $403.322

Interest on this balance = 403.22 * (13.73/12) * (1/100) = $4.615

Similarly, when the payment occurred on the 20th while purchasing on the 7th:

The balance on which interest will be applied according to the daily balance method = (449.22 * 6 + 510.21 * 13 + 424.88*6)/30 = $395.911

Interest on this balance = $395.911 *(13.73/12) * (1/100) = $4.199

Difference between interests = $0.41

Therefore, the September finance charge will be greater by $0.41 if the purchase occurred on September 7th and the payment occurred on September 20th than the payment occurred on September 7th and the purchase occurred on September 20th.

To get more about the daily balance method visit:

https://brainly.com/question/9994944

Answer:

12

Step-by-step explanation:

Set x=0

when you do that, you will find the point where y=12 since x^2+8x=0, but adding the 12 moves up the y-component by 12 units

Answer:

I believe 90π

Step-by-step explanation:

V=πr2h=π·32·10≈282.74334

90π ≈ 282.6

46 coins

D=30

p=10

Q=6

30+10+6=46

The total amount of coins is 46 coins

Let x represent the number of quarters, y represent the number of dimes and z represent the number of pennies.

Each quarter is worth $0.25, each dime is worth $0.1 and each penny is worth $0.01

Since Victor has three times fewer pennies than dimes, hence:

y = 3z      

y - 3z = 0        (1)

Victor also has 4 fewer quarters than pennies, hence:

x = z - 4

x - z = -4          (2)

The total worth of the coin is $4.60, therefore:

0.25x + 0.1y + 0.01z = 4.60       (3)

Solving equations 1, 2 and 3 simultaneously gives:

x = 6, y = 30, z = 10

Total coins = 6 + 30 + 10 = 46

Therefore there are 6 quarters, 30 dimes and 10 pennies

Find out more at: https://brainly.com/question/21938284

Answer:

This is a "strategic" guess

Step-by-step explanation:

It is answer C

Answer:

3.14 cube.yd

Step-by-step explanation:

Volume of cylinder= πr^2h

Answer:

well the answer is... and then you... which leads to.....

Step-by-step explanation:

This shifts the graph down 1 unit, reflects over the x axis, then vertically dilates by a factor of 2.

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

Explanation:

Refer to the figures below. The screenshots may be a bit on the big side, so brainly might attempt to reduce the size. To fix this, click on the magnifying glass to get a better look. There are 4 images in total.

Figure 1 is the original graph your teacher gave you.

Figure 2 shows the translation of the parabola 1 unit down. This aligns the right piece of the red parabola to the green V curve. This junction location is (1,0).

Afterward, in figure 3, we reflect the parabola over the x axis to have the left endpoint of the parabola (-3,8) move to (-3,-8). Unfortunately the (-3,-8) doesn't match up with the right most piece of the blue cubic curve.

Luckily, a quick fix is to double the y coordinate from -8 to -16 and the two pieces match perfectly. The other junction is (-3,-16). This is shown in figure 4.

To summarize, we did these transformations in the order presented.

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

Now to shift down 1 unit, we subtract 1 from each g(x) output.

Therefore, we go from g(x) to g(x)-1

Reflect over the x axis to get -(g(x) - 1) = -g(x) + 1

Lastly, we double everything when applying the dilation mentioned to end up with the final answer:  -2*g(x) + 2

You can use a tool like GeoGebra to check your work. It's the app I used to make the figures shown below.

Answer:

−5x3−9x2

Step-by-step explanation:

Answer:

[tex]-5x^3-9x^2[/tex]

Step-by-step explanation:

Assuming that the problem is asking you to simplify the given expression and that I read the 'x3's and 'x2's correctly as [tex]x^3[/tex] and [tex]x^2[/tex], this would be your answer.

[tex]~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill &\$4570\\ r=rate\to 4.5\%\to \frac{4.5}{100}\dotfill &0.045\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{annually, thus once} \end{array}\dotfill &1\\ t=years\dotfill &5 \end{cases} \\\\\\ A=4570\left(1+\frac{0.045}{1}\right)^{1\cdot 5}\implies A=4570(1.045)^5\implies A\approx 5695.05[/tex]

Answer:

The correct answer is D.

Step-by-step explanation:

$5695.05

Answer:

Add four to each sum

Step-by-step explanation:

32, 36, 40

32 + 4 = 36

36 + 4 = 40

Rule: Add four to each sum

Hope this helped!

(Let me know if I got something wrong!)

Answer:

A = bh

Plug in what we know:

18 1/3 = 3 1/3b

Divide 3 1/3 to both sides:

(18 1/3) / (3 1/3) = b

Convert both of them into improper fractions:

55/3 / 10/3 = b

Flip the 2nd fraction and multiply:

55/3 * 3/10 = b

Multiply the numerators and denominators together:

165/30 = b

Convert to a mixed number:

b = 5 1/2

Step-by-step explanation:

Answer:

47 2/3 ÷ 7 1/3

make them improper fractions;

143/3 ÷ 22/3

Make 22/3 a reciprocal(flip the fraction upside down);

143/3 ÷ 3/22

now multiply across;

143/3 x 3/22 = 6 5/10 which simplifies to 6 1/2 feet.

Answer:

Monthly salary: $5,617; Weekly salary: $1,296

Step-by-step explanation:

Since there are 12 months in a year, you would divide the number of months by the salary.

67400/12x≈5617

The monthly salary is about $5,617.

Since there are about 52 weeks in a year, you would divide the number of weeks by the salary.

67400/52x≈1296

The weekly salary is about $1,296.

Answer:

dont delete

Step-by-step explanation: why? cause yes

after 1 year he will get : 800 + 800 x 3,5% = 800 x 1,035 = $828

after 2 years he will get : 828 x 1,035 = 800 x 1,035 x 1,035 = 800 x 1,035²

so

after 10 years he will get : 800 x 1,035¹⁰

Answer: 83.25

Step-by-step explanation:

ahhhhhhhhhhhhhh

x=10

Step-by-step explanation:

Answer:

40 cows=16 days

= 10 days

Step-by-step explanation:

a field is grazed in 16 days by 40 cows so for the same field to be grazed in 10 days more cows are needed

so more/ less

16/10×40

64 cows it should be.

Answer:

Radius = 30milimeters

Step-by-step explanation:

The radius is one-half the diameter so you just divide the diameter by 2

Answer:

Step-by-step explanation:

divde then add 67b

then complete

Answer:

don't know only i need points to post my question..