3 years ago

Estimate the sum of 1,537 times 242 then find out the sum

Mathematics

1 answer:

kupik [55]3 years ago

5 0

Estimate- 4,520
if you multiply -371954
Adding- 1779

You might be interested in

A parabola is the set of all points that:

lord [1]

Answer:

Option C.

Step-by-step explanation:

Option C. A parabola is a set of all points that are the same distance from a point called focus and a line called vertex.

6 0

2 years ago

Read 2 more answers

2) BRAINLIEST + 10 + POINTS :D

elena55 [62]

Answer:

c) 28

explanation :

In this sequence:

a1 = 2

a2 = 4

a3 = 6

a4 = 8

a5 = 10

and so on...

then

the sum from a2 to a5 is:

a2 +a3 + a4 + a5 = 4 + 6 +8 + 10 = 28

7 0

3 years ago

Subtract 9y - 3 from 6y +1

Alexus [3.1K]

Answer: 3y +2

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

What are the coordinates of B(-4, -5) under a 180 degree rotation about the origin?

polet [3.4K]

Answer:

(4, 5 )

Step-by-step explanation:

Under a rotation about the origin of 180°

a point (x, y ) → (- x, - y ), thus

B(- 4, - 5 ) → (4, 5 )

5 0

3 years ago

Evaluate the double integral ∬R(2x−y)dA, where R is the region in the first quadrant enclosed by the circle x^2+y^ 2= 4 and the

frez [133]

Answer:

Step-by-step explanation:

We are to integrate the function

$f(x,y) = 2x-y$

over the area enclosed by the circle

$x^2+y^2 =4 \\x=0\\y=x$

Convert into polar coordinates

$dA=rdr dt$

x=rcost and y = rsint

Since the lines are x=0 and y=x we find that t varies from 0 to pi/4

$2x-y =2rsint-rcost$

Double integral will become now

$\int\limits^\frac{\pi}{4} _0 \int\limits^2_0 2rcost -rsint dt\\=\int\limits^\frac{\pi}{4} _0 r^2 cost -r^2sint /2 dt\\= r^2 sint - r^2 cost/2$

(since variables are independent here)

Substitute for r and t

4 sin pi/4 -2 cospi/4

= $\sqrt{2}$

6 0

3 years ago