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pashok25 [27]
3 years ago
12

Explain how to estimate 36.8 + 231 two different ways

Mathematics
1 answer:
larisa [96]3 years ago
5 0
You could do 37+230 or 40 + 235
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Twice as many points as bob in algebraic expression !!PLZ HELP!!
Vinil7 [7]

Answer:

?

Step-by-step explanation:

?

4 0
4 years ago
Read 2 more answers
C. Neilsen reported that children between the ages of 2 and 5 watch an average of 25 hours of television per week. Assume the va
zubka84 [21]

The following information about the mean and standard deviation has been provided:

ц=25, б=3,n=20

We need to compute Pr(X⁻≥26.3).

The corresponding z-value needed to be computed is:

Z=\frac{X-u}{o/\sqrt{n} } =\frac{26.3-25}{3/\sqrt{20}  }=1.9379

Therefor, we get that

Pr(X\geq 26.3)=Pr(Z\geq \frac{26.3-25}{3/\sqrt{20} } )=Pr(Z\geq 1.9379)\\=1-0.9737=0.026

3 0
3 years ago
Which line is perpendicular to the given equation: y=2x+17
pentagon [3]

Answer:

\large\boxed{y=-\dfrac{1}{2}x+b,\ \text{wher}\ b\in\mathbb{R}.}

Step-by-step explanation:

\text{Let}\ k:y=m_1x+b_1,\ l:y=m_2x+b_2\\\\l\ \perp\ k\iff m_1m_2=-1\to m_2=-\dfrac{1}{m_1}\\\\l\ \parallel\ k\iff m_1=m_2\\==========================\\\\\text{The slope-intercept form of an equation of a line:}\\\\y=mx+b\\\\m-slope\\b-y-intercept\\==========================\\\\\text{We have the equation of the line:}\ y=2x+17\to m_1=2.\\\\\text{Therefore}\ m_2=-\dfrac{1}{2}.\\\\\text{The equation of a line:}\ y=-\dfrac{1}{2}x+b,\ \text{wher}\ b\in\mathbb{R}.

8 0
3 years ago
Help me please someone
prisoha [69]
<h3>Answers:</h3>
  • Part A) Solution is (-3,-3)
  • Part B) Two solutions are (0,0) and (2,2)
  • Part C) Solution is x = -6

=========================================================

Explanation:

Part A

Ignore the g(x) curve. We're looking for the intersection of the p(x) and f(x) curves. The two cross at (-3,-3) which is the solution to the system of these two equations. This point is on both p(x) and f(x) simultaneously. That means the coordinates of the point satisfy both p(x) and f(x) equations simultaneously.

------------------------

Part B

Pick any two points you want from the f(x) curve. You could pick the solution we mentioned, but I'll go for (0,0) and (2,2). When talking about a single curve, it has infinitely many solutions (as long as you pick a point on the curve).

------------------------

Part C

Ignore the f(x) curve. The graphs of p(x) and g(x) intersect when x = -6, which is the solution to the equation p(x) = g(x). We're only concerned about the x coordinate of the intersection.

6 0
3 years ago
A baboon steals an apple and runs to a nearby boulder 10.0 m to its left. The baboon reaches the boulder in 1.0s with a constant
liq [111]

Answer:

Initial velocity is zero.

Step-by-step explanation:

According to second equation of motion

    s=ut+\frac{1}{2} at^2

where s = distance traveled  

           t = time taken

          a = acceleration

          u = initial velocity

here in the question we have

      s = 10 m

     t = 1 second

    a = 20ms^{-2}

plugging the known value in order to find the unknown which is u (initial velocity)

[tex]10=u(1)+\frac{1}{2} (20)(1)^2[/tex

10 = u +10

gives u =0

therefore initial velocity is zero.

4 0
3 years ago
Read 2 more answers
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