3 years ago

A circle has a diameter of 46 cm. What is its radius?

Mathematics

1 answer:

Margaret [11]3 years ago

4 0

Answer:

Step-by-step explanation:

radius = diameter/2 = 46cm/2 = 23 cm

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Use the quadratic formula to find the solutions to the quadratic equation below x^2-6x-5=0

Sonja [21]

Answer:

$\large\boxed{x=3-\sqrt{14}\ \vee\ x=3+\sqrt{14}}$

Step-by-step explanation:

$x^2-6x-5=0\qquad\text{add 5 to both sides}\\\\x^2-6x=5\\\\x^2-2(x)(3)=5\qquad\text{add}\ 3^2\ \text{to both sides}\\\\x^2-2(x)(3)+3^2=5+3^2\qquad\text{use}\ (a-b)^2=a^2-2ab+b^2\\\\(x-3)^2=5+9\\\\(x-3)^2=14\to x-3=\pm\sqrt{14}\qquad\text{add 3 to both sides}\\\\x=3-\sqrt{14}\ \vee\ x=3+\sqrt{14}$

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3 years ago

In a triangle shown, which shows the correct order of the side lengths from smallest to largest.

Vera_Pavlovna [14]

Answer:

Not sure if there are options, but the order of side lengths from smallest to largest is <u>j, k, l</u>

Step-by-step explanation:

This is a bad explanation (sorry):

Side length order will be the same order of angle orders. By that, I mean the since angle C has the smallest angle, the side length across from it will also be the smallest. Since angle B is the biggest angle, side L will be the biggest length. This leaves angle A (and side k) in the middle.

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3 years ago

3(x−0.2)=1.8+x find x

bonufazy [111]

Answer:

x=6/5

Step-by-step explanation:

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3 years ago

A 7-pound box of raspberries costs $26.88. What is the price per ounce?

pishuonlain [190]

Answer:

26.88/7 = $3.84 per ounce

Step-by-step explanation:

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3 years ago

Read 2 more answers

What is the solution to this equation? x + (- 14) = 4. (A) x = 10. (B) x = - 10. (C) x = - 18. (D) x = 18

Vika [28.1K]

First, you want to get x by itself on one side. We write the equation as $x-14=4$ . Since 14 is being subtracted from $x$ , we add it to both sides to cancel it out, $x-14+14=4+14$ or $x=18$ .

Your answer would be D.

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3 years ago