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lesya692 [45]
2 years ago
12

Help pleaseeeee nowwwwwwww

Mathematics
1 answer:
cupoosta [38]2 years ago
6 0
#1 - 8/7 7:8
#2 -3:4
#3 - 3:8
#4 -4:3
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Simplify 6g + 8 - 3g - 2
Alinara [238K]

Answer:

3g+6

Step-by-step explanation:

6g+8-3g-2

combine like terms

6g-3g= 3g

3g+8-2

8-2= 6

3g+6

7 0
2 years ago
What is the value of k ?<br><br> 1/2 k+6=4k-8<br><br>-4<br>-3<br>3<br>4
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The value of k in <span>

1/2 k+6=4k-8</span> 

is 4
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3 years ago
Kay inherits $250,000 which she invests today at a rate of return of 9% compounded annually. How much will Kay's investment be w
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3 years ago
A trucking firm has a large inventory of spare parts that have been in storage for a long time. It knowsthat some proportion of
Debora [2.8K]

Answer:

0.1546\leq \widehat{p}\leq 0.3513

Step-by-step explanation:

The firm tests 75 parts, and finds that 0.25 of them are notusable

n = 75

x = 0.25 \times 75 = 18.75≈19

\widehat{p}=\frac{x}{n}

\widehat{p}=\frac{19}{75}

\widehat{p}=0.253

Confidence level = 95%

So, Z_\alpha at 95% = 1.96

Formula of confidence interval of one sample proportion:

=\widehat{p}-Z_\alpha \sqrt{\frac{\widehat{p}(1-\widehat{p}}{n}}\leq \widehat{p}\leq \widehat{p}+Z_\alpha \sqrt{\frac{\widehat{p}(1-\widehat{p}}{n}}

=0.253-(1.96)\sqrt{\frac{0.253(1-0.253)}{75}}\leq \widehat{p}\leq0.253+(1.96)\sqrt{\frac{0.253(1-0.253}{75}}

Confidence interval =0.1546\leq \widehat{p}\leq 0.3513

7 0
3 years ago
Complementary angles always sum to _____.
dmitriy555 [2]
The answer is:  90° .
______________________________________________________
5 0
3 years ago
Read 2 more answers
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