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2 years ago

What is the value of x? Enter your answer in the box. x =

Mathematics

2 answers:

liberstina [14]2 years ago

6 0

Answer:

x=5

Step-by-step explanation:

rosijanka [135]2 years ago

3 0

Set up a ratio:

9 / 2x-1 = 15 / 3x

Cross multiply:

9 *3x = 15 * 2x-1

Simplify:

27x = 30x - 15

Subtract 30x from both sides.

-3x = -15

Divide both sides by -3:

x = -15 / -3

x = 5

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8 miles is approximately equal to 6 km how many km are equal to 28 miles ? How many miles are equal to 42km

Snowcat [4.5K]

28/8 = 3.5

3.5*6 = 21 km

42/6=7

7*8 = 56 miles

7 0

2 years ago

nirvana33 [79]

Answer:

$6 per carton.

Step-by-step explanation:

$54 divided by 9= $6

5 0

3 years ago

Find x and the measure of each side. Round to two decimal places, if necessary.

natta225 [31]

The values of the triangles are as follows:

x = 7 units
GH = 21 units
HI = 21 units
GI = 12 units

<h3>How to find angles and side of a triangle?</h3>

The triangle is an isosceles triangle because two sides and angles are equal. Therefore,

4x - 7 = 2x + 7

4x - 2x = 7 + 7

2x = 14

x = 14 / 2

x = 7 units

GH = 4(7) - 7 = 28 - 7 = 21

HI = 2(7) + 7 = 14 + 7 = 21

GI = 7 + 5 = 12

learn more on triangle here: brainly.com/question/21279088

#SPJ1

3 0

2 years ago

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

Point B, located at (-4, -7), is reflected over the y-axis. What are the coordinates of B'?

strojnjashka [21]

(-4,7) answer A
if u reflect it over y axis

3 0

3 years ago

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What is the value of x? Enter your answer in the box. x = ​​

What is the value of x? Enter your answer in the box. x =