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PolarNik [594]
3 years ago
12

4x−5 for x=10 Please, I really need the answer.

Mathematics
1 answer:
hichkok12 [17]3 years ago
8 0

Answer:

4(10)-5=35

Step-by-step explanation:

4(10)=40-5=35

4(10) is the same as 4x10

So think about it like 4x10-5

I hope this helps ;}

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Use the given degree of confidence and sample data to construct a confidence interval
ValentinkaMS [17]

Answer:

0.726 < p < 0.874

Step-by-step explanation:

p = 64/83 = about 0.8

confidence interval = p +- z \sqrt{\frac{p (1-p)}{n} }

= 0.8 +- (1.64 x 0.04472)

= 0.8 +- 0.073343

= (0.726656 and 0.873343)

0.726 < p < 0.874

8 0
3 years ago
What is the difference of the polynomials? (–2x3y2 + 4x2y3 – 3xy4) – (6x4y – 5x2y3 – y5)
vova2212 [387]

Answer:

-6x⁴y - 2x³y² + 9x²y³ - 3xy⁴ + y⁵

Step-by-step explanation:

(–2x³y² + 4x²y³ – 3xy⁴) – (6x⁴y – 5x²y³ – y⁵)=

–2x³y² + 4x²y³ – 3xy⁴ – 6x⁴y + 5x²y³ + y⁵=

-6x⁴y - 2x³y² + 9x²y³ - 3xy⁴ + y⁵

6 0
3 years ago
The product of 5 and a number is 18 more than twice the number. Write as an equation answer is not needed. Easy
koban [17]
5n = 2n + 18
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8 0
3 years ago
A weekend at the beach bag hotel in Florida includes two nights and four meals for 195. A week includes seven nights and ten mea
iren [92.7K]

Answer:

A night stay and meal cost= $40.18

Step-by-step explanation:

Simultaneous equations

2n +4m=195 x 10

7n+10m=650 x 4

28n+40n= 2600

20n+40n=1950

Subtract

8n=650

1 night= 81.25

Substitute

81.25 x 2 +4m=195

162.5+4m=195

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1 meal= 8.13

1 night and meal= $40.18

Hope it was right

7 0
4 years ago
Given the function f(x)=-9x²-3, which of the following best represents the value of f(-2)?
Pachacha [2.7K]

Answer:

78

Step-by-step explanation:

6 0
4 years ago
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