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4 years ago

Which of the following represents the most accurate estimation of 4+8

2 answers:

7 0

Estimating Sums of Single Digit Numbers Which of the following represents the most accurate estimation of 4 + 8? is the answer 5, 10, 20 or 25

UkoKoshka [18]4 years ago

3 0

<span>5

estimating sums of single digit numbers which of the following represents the most accurate estimation of 4+8? answer 5,10,20, and 25</span>

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Find the tangent line equation of the curve at the given point. Y=arcsin(7x) at the point where x=sqrt2/14

Mumz [18]

Answer:

$Y-\frac{\pi}{2} =\frac{\pi}{2} (x+\sqrt{\frac{1}{7}})$

Step-by-step explanation:

The equation of the curve is

$Y = sin^{-1}(7x)$

To find the equation of tangent we need to differentiate this equation w.r.t x

So, differentiating we get

$Y'=\frac{7}{\sqrt{1-49x^2} }$

This would give the slope of the tangent line at any given point of which x coordinate is known. In the present case it is $x = \sqrt{\frac{1}{7} }$

Then slope would accordingly be

$Y'=\frac{7}{\sqrt{1-49/49} }$

= ∞

For, $x = \sqrt{\frac{1}{7} }$ , $Y = sin^{-1}(7/7)= \pi/2$

Equation of tangent line, in the point slope form, would be $Y-\frac{\pi}{2} =\frac{\pi}{2} (x+\sqrt{\frac{1}{7}})$

4 0

3 years ago

The area of a rectangle is 72 square feet. Its length is 12 feet. Which equivalent formula could you use to find the width?

klasskru [66]

Answer:

w=6ft

Step-by-step explanation:

72 divided by 12 is 6

Using the formula

A=wl

Solving for w

w=A

l=72

12=6ft

4 0

4 years ago

17 employees exceeded expectations in at least one area of performance, 14 employees met expectations in at least one area of pe

Ilya [14]

Answer:

Step-by-step explanation:

6 0

4 years ago

Suppose y varies directly with x, and y = 24 when x = 8. What is the value of y when x = 10?

Solnce55 [7]

First, you want to set up a proportion.

8/24 = 10/y

Cross multiply to get

240 = 8y, then divide 8 from both sides to get y = 30.

6 0

3 years ago

Read 2 more answers

Find the area of the shaded segment. Round your answer to the nearest tenth. Please include units in your answer.

RSB [31]

Answer: 56

Step-by-step explanation:

Let's organise our information :

the radius of the circle is r=14 cm
we can get the area of the shaded by substracting the area of that triangle from that quarter

The area of the cercle's quarter area is :

A= 14²×π*(1/4) = 49π cm²

The area of the triangle is :

A=14²*(1/2)=98

NOw the area of the shaded segment :

A=49π-98= 55.98 ≈ 56

6 0

3 years ago