What is the estimated product of 289 and 7

Answers

Answer 1

Answer: its 2,100 because if you round 289 to hundreds it 300 then you multiply the 300 by the seven and you get the product 2,100

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Factor completely x2 - 36.

I think this is Prime is that correct

Answers

No. It's the difference of two squares, and so can be easily factored:

x² - 36 = (x + 6) (x - 6)

Multiply those out and you'll see.

$x^2 - 36=(x-6)(x+6)\n\n\na^2-b^2 = (a-b)(a+b)$

Urgent!! I will give brainiest to right answer

Answers

Answer:

1) option c

2) option d

3) option a

4) option a

5) option c

Step-by-step explanation:

1. Given that in ΔRST, ∠R=63°, ∠T=90° and so ∠S=27°

Also, cosec=hyotenuse/opposite side

Given RS=23 and ST=10.4

So, cosec27=RS/RT=23/RT

sec=hypotenuse/adjacent side

sec27=RS/ST=23/10.4

And cot=adjacent/opposite side

So, cot63=RT/ST=RT/10.4

2. formula:- sinθ=opposite side/hypotenuse

cosecθ=hypotenuse/opposite side

∴ sinθ *cosecθ = (opposite side/hypotenuse) * (hypotenuse/opposite side) = 1

3. Formula :- tan(360-θ) = -tanθ

∴ tan(300) = tan(360-60) = -tan30°

tan30° = √3

∴tan300° = -√3

5. sinθ= opposite side/hypotenuse

cosecθ = hypotenuse/opposite side

∴ cosecθ = 1/sinθ

Given sinθ = 0.3090

∴ cosecθ = 1/0.3090 = 3.2362

I need help with everything please tell me how to show work and the answer

Answers

All the answers attracted in the photo with working

This answer is correct above

What’s the area of this figure?

Answers

Answer:

374 mm

Step-by-step explanation:

There are two rectangles and one triangle. This means that we need to add the sum of two rectangles and one triangle together.

Rectangle 1:

19*9=171

Rectangle 2:

19*9=171

Triangle:

8*23*1/2=32

(We divide by 1/2 because it's a triangle)

Now we add them together.

171+171+32=374

In the end, the answer is 374. I didn't show all of my work because most of it was done mentally.

470 square mm. the area of the right triangle is 128 sq mm because 32x11=256 and 256/2=128

What is the percentage increase from 9 to 10.25

Answers

113.8(with a repeating 8)%
To find this answer, I divided 10.25 by 9 and got 1.13888(with a repeating 8). To turn that into a percent, I multiplied it by 100 and got 113.8(with a repeating 8)%.

By 113.8(with a repeating 8)% I mean 113.8888888888...%

Answer:

13.8888......

Step-by-step explanation:

https://www.percentagecal.com/answer/what-is-percentage-difference-from-25-to-41#:~:text=Percentage%20Calculator%3A%20What%20is%20the,%3D%2064

A sequence is defined recursively by f(0)=2 and f(n)=f(n+1)=-2f(n)+3 for n greater than or equal to 0, then f(2) is equal to

Answers

If you would like to know what is f(2), you can calculate this using the following steps:

f(0) = 2
f(n+1) = - 2 * f(n) + 3
f(1) = - 2 * f(0) + 3 = - 2 * 2 + 3 = - 4 + 3 = - 1
f(2) = - 2 * f(1) + 3 = - 2 * (-1) + 3 = 2 + 3 = 5

The correct result would be f(2) = 5.

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Kareem saves his coins in a jar. 30% of the coins are pennies. if there are 24 pennies in the jar, how many coins does Kareem have?

13. Calcule:A) a medida do ângulo interno de um triângulo equilátero B) a soma das medidas dos ângulos internos de um polígono de 13 lados.C) a medida do ângulo interno de um octógono regular.D) a medida dos ângulos externos de um decágono regular.E) a soma das medidas dos ângulos externos de um polígono regular de 12 lados.Como posso calcular estas questões?