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Arada [10]
2 years ago
9

By rounding to one significant number, estimate the answer to these questions:

Mathematics
1 answer:
Rom4ik [11]2 years ago
6 0

Answer:

a) 140000

b) 1000000

c) 9000000

Step-by-step explanation:

a) 687x164

700 * 200 =140000

b) 476x2354

500*2000=1000000

c) 8612x1497

9000*1000=9000000

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Given a polynomial f(x), if (x + 5) is a factor, what else must be true?
PolarNik [594]
Rule: If x-k is a factor of p(x), then p(k) = 0. This is a special case of the remainder theorem.

Using that rule, we can see that x+5 is really x-(-5) so k = -5. 

Therefore,

p(k) = 0
p(-5) = 0

so the answer is choice D. 
4 0
3 years ago
What y'all think about freedom of religion. U have any thoughts or opinion.
finlep [7]
No one should talk badly about anyones religion or do something bad with religion thats just disrespectful everyone has there own beliefs no one should judge 
8 0
3 years ago
(x-4)/(2x+1)-3 can you help me with this question
lilavasa [31]

Answer:

\frac{(x - 4)}{(2x + 1)} - 3 = \frac{-7x- 7}{3x + 1}

Step-by-step explanation:

Given

\frac{(x - 4)}{(2x + 1)} - 3

Required

Solve

Express 3 as a fraction

\frac{(x - 4)}{(2x + 1)} - \frac{3}{1}

Take LCM

\frac{x - 4 - 3(2x + 1)}{3x + 1}

\frac{x - 4 - 6x - 3}{3x + 1}

Collect Like Terms

\frac{x - 6x- 4  - 3}{3x + 1}

Simplify like terms

\frac{-7x- 7}{3x + 1}

Hence:

\frac{(x - 4)}{(2x + 1)} - 3 = \frac{-7x- 7}{3x + 1}

4 0
3 years ago
The perimeter of rectangle is twice the sum of its length and its width.the perimeter is 22 meters and its length is 2 meters mo
romanna [79]
P = 2(L + W)
P = 22
L = 2W + 2

22 = 2(2W + 2 + W)
22 = 2(3W + 2)
22 = 6W + 4
22 - 4 = 6W
18 = 6W
18/6 = W
3 = W.....this is the width

L = 2W + 2
L = 2(3) + 2
L = 6 + 2
L = 8 meters <=== this is the length
6 0
3 years ago
Read 2 more answers
Solve for t. 3 t minus 2 equals negative 11
Ierofanga [76]

Answer:

3t - 2 =-11

3t = -11+2

3t= 9

divide both sides by 3

t = -3

3 0
3 years ago
Read 2 more answers
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