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Stolb23 [73]
3 years ago
7

Estimate the sum of 202 and 57.

Mathematics
2 answers:
aalyn [17]3 years ago
8 0
The estimate of the sum of 202 and 57 is 260. You add the numbers together and than round up.
Fed [463]3 years ago
3 0
The estimate sum of 202+57 is equal to 259
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HELP PLEASE HELP ME
Marina CMI [18]

Answer:

1. k≤ 26.11 hours

2. 5 ≤ x ≤ 6

Step-by-step explanation:

1.

38.76 + 2.69k ≤ 109

2.69k ≤ 70.24

k ≤ 26.11 hours

2.

19 ≤ 4 + 3x ≤ 22

15 ≤ 3x ≤ 18

5 ≤ x ≤ 6

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

5 0
3 years ago
Factor out the gcf 63+45b
DerKrebs [107]

Answer:

GCF is 9

Step-by-step explanation:

Factor out 9 and divide what's in the parentheses by 9

9(7+5b)

3 0
2 years ago
A card is drawn from the deck. What is the probability it is either black face card or a<br> spade?
IRINA_888 [86]

Answer:

about 37% chance or, rounding to the nearest tenth, 36.5% chance

Step-by-step explanation:

since there are only 6 black face cards out of 52 cards, so the fraction is 6/52

there are also 13 spade cards out of 52 cards, so the fraction is 13/52

to find the percent you have to add the two fractions becuase all you want to do is draw a black face card or a spade card. when you add them you get 19/52

then dividing the fraction gives you .3653846154 on my calculator :)

4 0
3 years ago
HELP ME PLEASE!!!!!!
Deffense [45]

9514 1404 393

Answer:

  -2x +4

Step-by-step explanation:

We can write the polynomial p(x) in terms of the factors (x+2) and (x-3) as ...

  p(x) = (x+2)(x-3)q(x) +ax +b

Where ax+b is the remainder from division by x^2 -x -6 = (x+2)(x-3). The values of 'a' and 'b' can be found from ...

  p(-2) = 8 = -2a +b

  p(3) = -2 = 3a +b

Subtracting the first equation from the second gives ...

  (3a +b) -(-2a +b) = (-2) -(8)

  5a = -10

  a = -2

Then the first equation tells us ...

  8 = -2(-2) +b

  4 = b

So, the remainder from division by (x^2 -x -6) is (-2x +4).

5 0
2 years ago
Round your answer to the nearest hundredth.
iren2701 [21]

Given b=4 and ∠β=20°,

a = 10.98991

c = 11.69522

∠α = 70° = 1.22173 rad = 7/18π

h = 3.75877

area = 21.97982

perimeter = 26.68513

inradius = 1.64735

circumradius = 5.84761

a

b

c

Calculation Steps

The following is one way to perform the calculation. It may not be the best way.

c =

b

sin(β)

= 11.69522

a = √c2 - b2

= √11.6952176006522 - 42

= √120.77811472661

= 10.98991

∠α = 90° - ∠β

= 70° = 1.22173 rad = 7/18π

area =

a × b

2

=

10.989909677818 × 4

2

= 21.97982

perimeter = a + b + c

= 10.989909677818 + 4 + 11.695217600652

= 26.68513

inradius =

a × b

a + b + c

=

43.959638711274

26.685127278471

= 1.64735

circumradius =

c

2

=

11.695217600652

2

= 5.84761

- ror

8 0
2 years ago
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