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Masteriza [31]
3 years ago
10

Are these right?!?! Cannot fail

Mathematics
1 answer:
jolli1 [7]3 years ago
4 0
The first one is correct but I don’t know about the second one
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Log2+ log8=2<br><br>how do I do it?​
soldi70 [24.7K]

Answer:

Step-by-step explanation:

log(2)+log(8) = 2

1.20412≠2

False

8 0
3 years ago
F(x)=x^2+3x ... find f(2-a)
olga2289 [7]
(2-a)^2 + 3(2-a)




A^2 -2a + 4 + 6 -3a



A^2 -5a +10
7 0
3 years ago
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100 points gor correct answer Identify the base of a triangle in which h=(3x+15) ft and A=(15x+75) ft^2.
ivolga24 [154]

Answer:

b = 10

Step-by-step explanation:

The area (A) of a triangle is calculated as

A = \frac{1}{2} bh ( b is the base and h the height )

Here h = 3x + 15 and A = 15x + 75, thus

\frac{1}{2} × b × (3x + 15) = 15x + 75

Multiply both sides by 2 to clear the fraction

b(3x + 15) = 30x + 150

Divide both sides by (3x + 15)

b = \frac{30x+150}{3x+15} ← factor numerator and denominator

  = \frac{30(x + 5)}{3(x+5)} ← cancel the factor (x + 5) on numerator/denominator

  = \frac{30}{3}

  = 10

7 0
3 years ago
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A magazine provided results from a poll of 1500 adults who were asked to identify their favorite pie. among the 1500 ​respondent
valentinak56 [21]

Answer:

0.01  is alpha level

Step-by-step explanation:

Given that a survey of a magazine of 1500 adults revealed that 12% chose chocolate pie.

i.e. p = proportion of people who like chocolate pie = 0.12

Margin of error = ±0.03

The value of   q  =1-\hat p , =1-0.12 = 0.88


The sample size n  is given as 1500. Therefore,  n=1500

The confidence level is given as 99%

Hence alpha = 1- confidence level


=1-0.99=0.01

Hence answer is 0.01



4 0
3 years ago
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1000 jumps in 3 hours. How many jumps are there per hour?
DiKsa [7]
Just multiply 1000 jumps by 3 to get your answer.
6 0
3 years ago
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