What is the answer to -2 3/4 ÷ 5/-9 ??

Answer:

The value of n is complex

Step-by-step explanation:

The sequence is an arithmetic sequence

Given

First term a = -10

common diff d = -7-(-10) = -4-(-7) = 3

Sn = -104

get the number of terms n using the formula

Sn = n/2[2a+(n-1)d]

-104 = n/2[2(-10)+(n-1)(3)]

-104 = n/2[-20+3n-3]

-208 = n{3n-23}

-208 = 3n²-23n

3n²-23n+208 = 0

Factorize

n = 23±√23²+4(3)(208)/2(3)

n = 23±√529-2496/6

Since the value of n is a complex number, hence the value of n does not exist

Answer:

uhm no

Step-by-step explanation:

Answer:

arc 1 = 108 degrees

angle 2 = 54 degrees

Step-by-step explanation:

180 - 72 = 108   (half circle -72)

draw a line from center of circle to tangent point.

this line is perpendicular to the tangent line.

all radii are equal.

then, triangle made with the new line is isosceles with two equal angles.

those angles are 36 degrees each  (180 - 108 = 72, 72/2 = 36)

line drawn from center to tangent point is 90 degrees so:

90 - 36 = 54 degrees

Answer:

How long was the ribbon before it was cut?

Step-by-step explanation:

Answer:

Step-by-step explanation:

length=1 m

base of triangle=10 m

height=5m

volume= 1/2×10×5×1=25 m cube.

slant height l=√(5²+5²)=√50=5√2

slant surface area=2[5√2×1]=10√2

area of front and back=2×1/2(10×5)=50

total surface area=50+10√2≈50+14.14≈64.14 m²

Answer:

it should 3

Step-by-step explanation:

Answer:

mi no inglés no te podré contestar perdon

Answer:

(Hi!!) I do not know what you need in this Problem but first of all, if your looking for who typed the fastest it was Ray.

Answer:

Step-by-step explanation:

Answer:

9

Step-by-step explanation:

I don't really know what your asking here but there we're 9 other envelopes

Answer:

857.96

Step-by-step explanation:

964/100=9.64

9.64x11=106.04

964-106.04=857.96

Answer:

Y=-2

Step-by-step explanation:

Hope that helps you

Answer:

y=-2

Step-by-step explanation:

first, you have to leave y alone so you have to add 2 on both sides to delete -2

y-2+2=-4+2

now -2+2=0 so that's gone and -4+2 is -2

Now you have the answer UvU

y=-2

Answer:  22% of the pages are filled up

Step-by-step explanation: 900/9= 100 78% of 100 is 78

22+78=100 therefore reaching 100 percent. since 78% is empty that means 22% is being used.

Answer:

2

Step-by-step explanation:

The reciprocal of a number n is [tex]\frac{1}{n}[/tex]

Here n = 0.5, then reciprocal is

[tex]\frac{1}{0.5}[/tex] = 2

Answer:

One more transformation — a rotation — would map △ABC onto △FED So the triangles are congruent.

Step-by-step explanation:

Yup

Answer:

b = 5√3 (units)

Step-by-step explanation:

To solve this problem, use the pythagorean theorem, where a^2+b^2 = c^2, a and b are the legs of the triangle and c is the hypotenuse.

In this case, we are finding the missing leg, and we were given one of the legs and the hypotenuse.

a^2+b^2 = c^2 (pythagorean therorm)

5^2+b^2 = 10^2 (substitute one leg and the hypotenuse)

25+b^2 = 100 (square the numbers)

b^2 = 75 (subtract 25 from both sides)

b = √75

b = √25 * √3 (factor out√75)

b = 5 * √3 (find square root of√25)

b = 5√3

Hope I was able to help! Good Luck!

Answer:

is this helping?

Step-by-step explanation:

it helps show the words better

sorry if wrong or late qwq

your amazing

Answer:

f(x) = 3x² - 14x - 5

Step-by-step explanation:

multiply the factors: (x + 1/3)(x - 5)

x² - 5x + 1/3x - 5/3

x² -14/3x - 5/3

multiply by 3 to eliminate fractions:

3x² - 14x - 5

Answer:

$365.93

$368.26

Step-by-step explanation:

The true balance :

Statement balance - outstanding cheques

Statement balance = 414.25

Outstanding cheques = 26.54 and 21.76

414.25−26.54−21.78 = 365.93

Adjusted Chequebook balance

Chequebioknvakance will en adjyat d for service charge :

Chequebook balance - service charge

$374.16 - $5.90 = $368.26

Answer:

I think 12yards

Answer:

0.5277

Step-by-step explanation:

Answer:

Step-by-step explanation:

7/9 -1/4

we need to make the fraction even bases

7x4=28 9x4=36      1x9= -9     4x9=36

28/36 -9/36

28-9=19

19/36

Answer:

Vertical angles

Step-by-step explanation:

∠[tex]5[/tex] and ∠[tex]7[/tex] are formed by the same lines and are "opposite" to each other, so they are vertical angles by definition. Hope this helps!

Answer:

y = 3[tex]\sqrt{7}[/tex]

Step-by-step explanation:

The 2 right triangles inside the right triangle are similar, then ratios of corresponding sides are equal, that is

[tex]\frac{y}{9}[/tex] = [tex]\frac{7}{y}[/tex] ( cross- multiply )

y² = 63 ( take the square root of both sides )

y = [tex]\sqrt{63}[/tex] = 3[tex]\sqrt{7}[/tex]

Answer:

-60

Step-by-step explanation:

h(x)=-7x-11

h(7)=-7(7)-11

h(7)=-49-11

h(7)=-60

Answer:

-60

Step-by-step explanation:

-7x7= -49

-49-11= -60

Answer:

Step-by-step explanation:

Store A price is 20x-7

store B price is 4(5x+7)

Where x represents the number of items.

Now, observe that the coefficient of both expressions is 20, because 4(5x+7)=20x+7

Remember that the coefficient of the x-variable is always the constant rate of change. Also, the given expressions can be expressed as linear functions

y=20x-7

y=20x+28

Observe that both Stores have already the same rate, which is  20.

Therefore, they have the same rate at any number of items dry cleaned.

What they have different is their initial condition, -7 and +7 respectively, but the rate is the same..

Answer:

She would need to order 11.5 pizzas. But of course she wouldn't order 11.5 so she'll just round up and order 12 pizzas.

Step-by-step explanation:

Take 4 pieces of pizza for each person and multiply that by how many people there are in this case 23. The answer would be 92 pieces of pizza would be needed to feed all of the 23 people. So you take 92 and divide it by 4 because each person gets 4 slices and the answer you get is 11.5. If the question is a multiple choice and it gives you the option of 11.5 then that's the answer but if its a fill in then round up to 12 pizzas because if not there will not be enough pizza for everyone.

Hope this helped! :)

Answer:

x=3

Step-by-step explanation:

Answer:

30.16

Step-by-step explanation:

Answer:

sepa pero suerte no hablo ingles