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sweet [91]
3 years ago
9

PLZ HELP WILL NAME BRIANLIEST

Mathematics
1 answer:
Kamila [148]3 years ago
3 0

Answer:

SORRY IF IM WRONG BUT I THINK ITS C

Step-by-step explanation:

PLEASE MARK BRAINLIEST REMOVE MY ANSWER IF WRONG!!!!!!!!

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jessica is saving money for a new sailboat. she has already saved $1000 and plans to save $150 per week. this situation can be r
nevsk [136]

Answer: $2800

Step-by-step explanation:

if the function is f(x) and shes already saved $1000 plug in the functions, or in other words plug in x for weeks.

1000 + 150 x

(plug in x)

1000 + 150 x 12

so now you do 150 x 12 which equels 1800

then add how muh shes saved and thats will be your total.

3 0
3 years ago
What is the perimeter of the triangle?
snow_tiger [21]

Answer:

The perimeter of the triangle is 34 units

Step-by-step explanation:


7 0
3 years ago
2x + 7 =30, x = 3 true or false
RSB [31]

Answer:

False

Step-by-step explanation:

2x+7=30

2x=23

X= 23/2 or 11.5

X does not equal 3, therefore the statement is false

6 0
3 years ago
Read 2 more answers
. The manager of a local small bank wants to estimate the average daily balance of all the checking accounts. Assume a random sa
MaRussiya [10]

Answer:

A 95% confidence interval estimate of the population mean (average) daily balance of all the checking accounts is $274.32 to $331.68

Step-by-step explanation:

Consider the provided information.

A random sample of 21 checking accounts at the bank are chosen,

That means n=21

df = n-1

df = 21-1=20

We need to  Construct and interpret a 95% confidence interval.

Determine t critical value for 95% confidence interval.

0.95=1-α

α=0.05

The sample size is small and it is a two tailed test.

From the t value table confidence interval is 2.086

An average daily balance is $303 and a standard deviation of $63.

CI=\bar x\pm t_c \times \frac{s}{\sqrt{n}}

Substitute the respective values.

CI=303\pm 2.086 \times \frac{63}{\sqrt{21}}

CI=303\pm 28.68

CI=274.32\ or\ 331.68

A 95% confidence interval estimate of the population mean (average) daily balance of all the checking accounts is $274.32 to $331.68

3 0
4 years ago
Find the value of x in the triangle shown below
beks73 [17]

Answer:

x = 12

Step-by-step explanation:

Using the Pythagorean theorem where c = 13, and b = 5, we get (a = x):

a^2 + 5^2 = 13^2

Solving for a:

a^2 = 13^2-5^2

a =\sqrt{13^2-5^2}   = \sqrt{144}=12

6 0
3 years ago
Read 2 more answers
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