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zvonat [6]
3 years ago
8

Simplify. −7 + {12 + 3[30 − 5(1 + 4)]}

Mathematics
1 answer:
Igoryamba3 years ago
8 0

Answer:

-7+(12+3(30-5(1+4)= 20

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which of the following is a non depository financial institution? a.Retail Bank b.commercial bank c.life insurance d.credit unio
Artyom0805 [142]

Answer: it was online bank

Step-by-step explanation:

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3 years ago
The line segment joining the points A(2,1) and B(5,-8) is trisected at the points p and q such that p is nearer to A. If p also
SpyIntel [72]

Answer:

  k = -8

Step-by-step explanation:

The location of P is ...

  P = (2A+B)/3 = (2·2+5, 2·1-8)/3 = (3, -2)

Putting this point into the equation for the line, we have ...

  2(3) -(-2) +k = 0

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3 0
3 years ago
Read 2 more answers
A researcher wants to estimate the mean commute time of residents in Westchester County. The researcher samples 40 commuters and
Ksenya-84 [330]

Answer:

21.759

Step-by-step explanation:

Given that :

Mean (m) = 25

Standard deviation (s) = 12.5

Sample size (n) = 40

α = 90%

The confidence interval is obtained using the relation:

Mean ± Zcritical * s/sqrt(n)

Zcritical at 90% confidence interval = 1.64

25 ± 1.64 * (12.5/sqrt(40))

Lower boundary : 25 - 1.64(1.9764235) = 21.75866546

Upper boundary : 25 + 1.64(1.9764235) = 28.24133454

(21.759, 28.241)

Hence, lower bound of confidence interval is : 21.759

4 0
3 years ago
Write the equation of the line in fully simplified slope-intercept form.
Nastasia [14]

Answer:

y= \frac{5}{6} x + 4

Step-by-step explanation:

Pick two points: (-6,-10) and (0,4)

Then solve for m (slope): I picked (0,4)

m= \frac{4-(-1)}{0-(-6)} =\frac{5}{6}

Then put in slope intercept form:

4= \frac{5}{6} (0) + b

4=b

Then put in final form:

y= \frac{5}{6} x + 4

Hope this helps!

7 0
3 years ago
You purchase 5 sliders and an order of French fries for $9.25. If fries cost $2, what is the cost of a single slide
nadya68 [22]

Answer:

$1.45

Step-by-step explanation:

9.25 - 2 = 7.25

7.25 ÷ 5 = 1.45

6 0
3 years ago
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