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const2013 [10]
3 years ago
8

Helpppppp!! Please ?

Mathematics
2 answers:
Doss [256]3 years ago
8 0

Answer:

I whold say that is 7 or 6. hope this helps please mark me branlenest.

Zina [86]3 years ago
4 0
AD: 6 cm
AC: 6 cm
Because we know that BD and AC are perpendicular, we know that the two triangles are right triangles. Now, just use the Pythagorean Theorem to find the missing side.
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What is 20 more than f
timurjin [86]
This phrase can be written as 20 + f.

So, 20 + f is the answer.
6 0
3 years ago
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A.756<br> b.936<br> c.1,008<br> d.1,080<br> HELLLPPPPP
luda_lava [24]

Answer:

936 is the correct option

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3 years ago
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Martin is interested in the effects of different kinds of instruction on videogame performance. Martin asks 30 college freshmen
777dan777 [17]

Answer:

Between - groups variance

Step-by-step explanation:

From the question we see that the college freshmen are assigned to one of the three given groups. This means that they are exposed to different experimental conditions and thus it means that the variation differs as a result of different experimental conditions between the groups.

Thus, these differences reflect between - group variance.

5 0
3 years ago
Dy/dx ln(xy)=e^(x+y)
Westkost [7]
In(xy) = e^(x+y)

(xy)'/xy  = (x+y)' e^(x+y)

(x'y + xy')/xy = (1+y') e^(x+y)

(y + xy')/xy = (1+y')e^(x+y) and simplify

Hope this helps
4 0
3 years ago
Use the standard normal distribution or the​ t-distribution to construct a 99​% confidence interval for the population mean. Jus
vichka [17]

Answer:

(25.732,30.868)

Step-by-step explanation:

Given that in a random sample of 42 ​people, the mean body mass index​ (BMI) was 28.3 and the standard deviation was 6.09.

Since only sample std deviation is known we can use only t distribution

Std error = \frac{s}{\sqrt{n} } =\frac{6.09}{\sqrt{42} } \\=0.9397

df = 42-1 =41

t critical for 99% two tailed = 2.733

Margin of error= 2.733*0.9397=2.568

Confidence interval lower bound = 28.3-2.568=25.732

Upper bound = 28.3+2.568=30.868

3 0
3 years ago
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