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3 years ago

HeLp What is the value of the expression when a = 4 and b = 3? 4a+b−5 please

Mathematics

1 answer:

Inessa05 [86]3 years ago

5 0

Answer:

12+3-5

Step-by-step explanation:

If a = 4 and b = 3, then you use substitution to replace the variables with their constant values. Hope I helped!

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3 years ago

Find the measure of angle h

AnnZ [28]

Answer:

62 degrees

Step-by-step explanation:

Since we know 3 sides of the triangle, we can use law of cosines.

${gk}^{2} = {gh}^{2} + {kh}^{2} - 2(gh)(kh) \times \cos(h)$

${8}^{2} = {17}^{2} + {15}^{2} - 2(17(15) \times \cos(h)$

$64 = 289 + 225 - 510 \times \cos(h)$

$64 = 314 - 510 \times \cos(h)$

$- 250 = - 510 \times \cos(h)$

$\frac{250}{510} = \cos(h)$

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3 years ago

What is 1 standard deviation on a

PilotLPTM [1.2K]

Answer:

D. The distance from the mean to an inflection point

Step-by-step explanation:

We rarely encounter the actual formula for the normal PDF. It is ...

$p(x)=\dfrac{1}{\sqrt{2\pi}}e^{-\dfrac{x^2}{2}}$

In fact, the inflection points are at x = ±1, where the curve changes from being concave downward to concave upward.

So, one standard deviation is the distance from the mean to an inflection point.

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3 years ago

ABC is an isosceles triangle with angle ABC 52 degrees

coldgirl [10]

We need the picture to answer this question. From the information
given, we can't be sure that XY is even on the same planet as the
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All we can say for sure is that if one angle of an isosceles triangle is
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3 years ago

Evaluate each function k(a)=3a+2; Find k(2)

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Step-by-step explanation:

k(a) =3a+2

k(2)=3*2+2

k(2)=6+2

k(2)=8

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3 years ago