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3 years ago

X^1/4 +3 =0 -Solve the equation. Check your solutions

Mathematics

1 answer:

mina [271]3 years ago

3 0

Answer:

Step-by-step explanation:

subtract 3 from both sides->x^1/4=-3

set both sides to the power of 4-> x=(-3)^4

solve-> x=81

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The diameter of a circle is 22 millimeters. What is it's radius

Kaylis [27]

Radius is always half of the diameter.

22 mm/2= 11 mm

Final answer: Radius=11 mm

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2 years ago

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Use an algebraic equation to find the measure of each angle that is represented in terms of x.

GuDViN [60]

The measure of each angle is 117°

Explanation:

Given that the two angles are (11x-26)° and (7x+26)°

We need to determine the measure of each angle.

<u>Measure of angles:</u>

From the figure, it is obvious that the two angles are vertically opposite angles.

By definition, we know that, the vertically opposite angles are always equal.

To determine the measure of each angle, we shall first find the value of x.

Thus, we have,

$11x-26=7x+26$

$4x-26=26$

$4x=52$

$x=13$

Thus, the value of x is 13

Now, substituting $x=13$ in the angle (11x-26)°, we get,

$(11(13)-26)^{\circ}=(143-26)^{\circ}$

$=117^{\circ}$

The measure of the angle is 117°

Similarly, substituting $x=13$ in the angle (7x+26)°, we get,

$(7x+26)^{\circ}=(7(13)+26)^{\circ}$

$=117^{\circ}$

The measure of the angle is 117°

Hence, the measure of each angle is 117°

6 0

3 years ago

One of your friends gives you $10 for a charity walkathon. Another friend gives you an amount per mile. After 5 miles, you have

irinina [24]

One of your friends gives you $10 for a charity walkathon -- this is your beginning amount.
Another friend gives you an amount per mile -- you will to calculate this value.
After 5 miles, you have raised $13.50 total --
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-- $10.00 - $13.50 = $3.50
-- Since you walked 5 miles, divide $3.50 by 5 to give you $0.70 per mile earned.

So, an equation that represents the amount of money earned is: y = $0.70x+$10.00.
This is in slope-intercept form; the slope is $0.70 and represents the amount of money earned per mile and the intercept is $10.00 and represents the initial amount of money that you were given.

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3 years ago

You are painting the outside of a 36-foot fence that goes around a square playground. There are 4 equal sections. You have paint

kvv77 [185]

36/4 x 1/4 = 36/16 or 2 4/16 or 2 1/4

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2 years ago

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2. y = 5x2 + 10x – 3

Mice21 [21]

Answer:

x= -7/10 or x= -0.7 , y= 7

Step-by-step explanation:

Find the x-intercept: Find the y-intercept:

y= 5×2+10x-3 y= 5×2+10x-3

0=10+10x-3 y= 5×2+10×0-3

0=7+10x y= 7

-10x=7

x=-7/10

8 0

2 years ago