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Shtirlitz [24]
3 years ago
15

What is 25x2+8/5x21 Exact number no rounding

Mathematics
1 answer:
beks73 [17]3 years ago
5 0

Answer:

83.6

Step-by-step explanation:

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mars1129 [50]

y=mx+b

m is your slope

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3 years ago
We are interested in finding out the proportion of adults in the United State who cannot cover a $400 unexpected expense without
serious [3.7K]

Answer:

Step-by-step explanation:

given that we are interested in finding out the proportion of adults in the United State who cannot cover a $400 unexpected expense without borrowing money or going into debt.

Sample size = 765

Favour = 322

a) The population is the adults in the United State who cannot cover a $400 unexpected expense without borrowing money or going into debt

b) The parameter being estimated is the population proportion P of adults in the United State who cannot cover a $400 unexpected expense without borrowing money or going into debt.

c) point estimate for proportion = sample proporiton = \frac{322}{765} \\=0.4209

d) We can use test statistic here as for proportions we have population std deviation known.

d) Std error = 0.01785(\sqrt{\frac{pq}{n} }

Test statistic Z = p difference / std error

f) when estimated p is 0.50 we get Z = -4.43

g) Is true population value was 40% then

Z = 1.17 (because proportion difference changes here)

7 0
3 years ago
Us algebra to solve each system of equation y=-2x+1
zmey [24]
Adding 2x on both side
y+2x=1
answer
4 0
3 years ago
Complete the equation of the graphed linear function. Write the slope in decimal form.
Leno4ka [110]
Y=mx+b
m=slope
b=y intercept, aka where the line crosses the y axis or where x=0

we can find the y axis by looking
it crosses the y axis at 4 units up
so
b=4
y=mx+4
we also se another point
(-5,0)
when x=-5, y=0
0=m(-5)+4
solve for m
0=m(-5)+4
subtract 4
-4=m(-5)
divide both sides by -5
-4/-5=4/5=m



equaiton is
y=4/5x+4
y=0.8x+4

8 0
3 years ago
BRAINLIEST IF CORRECT You choose a movie at random from a list containing 8 comedy movies, 5 science fiction movies, and 7 adven
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Answer:

0.60 & 60%

Step-by-step explanation:

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3 years ago
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