The three lengths of four triangles are given. Which triangle is a right triangle?

Answers

Answer 1

Answer: A 3-4-5 right triangle is a triangle whose side lengths are in the ratio of 3:4:5. In other words, a 3-4-5 triangle has the ratio of the sides in whole numbers called Pythagorean Triples.

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Round 7.3519 to 1 decimal place

what is the decimal sign-and-magnitude value of the 8-bit number represented in 2's complement by 11010011?

Answers

Answer:

-45.

Step-by-step explanation:

The decimal value is negative because the first digit is a '1'.

11010011

First we subtract 1 :

11010011

-1

11010010

Now we replace each 1 by 0 and 0 by 1:

= 00101101

In decimal this is - (1 + 2^2 + 2*3 + 2^5)

= -45.

Draw a line segment and copy it to the right of the original segment. Explain your steps and justify each step used. Bisect the original line segment from problem one. Draw an angle and copy it to the right of the original angle. Explain your steps and justify each step used. Bisect the original angle from problem three.

Answers

Draw a line segment of any length roughly , and 'copy' it to the right of the segment, writing down the steps you use.

For example:

we draw a line segment of 4 inch.
For the 'copy', you would 'measure' the line drawn, and duplicate it to the right, measuring it to make sure it is the exact length of the first line.

To bisect the original line segment measure the line with a ruler or other device, and calculate 1/2 distance from one end, mark it, measure from left end to mark, make sure right section is equal in length. Line can also bisect by using a compass. open the compass more than half length of the line segment and them draw an arc from it by placing it at one end of the line segment , repeat the process from the other end of the line segment and then a point at which both these arc intersect will be the mid point of the line segment.
Draw an angle, and copy it to the right of the original angle. Explain your steps, and justify each step used.
Draw an angle of 90 degree and labeled it to avoid confusion.
Now use a scale to draw a ray and label the vertex point so we can know the point where to place compass.Use compass to draw an arc on angle.This angle will help you measure where to put the new point on our new angle.
Similarly draw the same arc on the new ray. This is the first step in finding the new point.
now use compass to measure the difference between the two places where the arc meets the angle on angle . use the measurements from the previous step to draw another arc. This step is to help establish a point where the two arcs meet.Now draw a point where the two arcs met and drew a line through it.

How do you solve 1 3/4-7/10?

Answers

1 3/4 - 7/10 = 1 (15 - 14)/20 = 1 1/20

After school, Marcus can walk 1 mile to the library in about the same time he can bike 2.5 miles to the sporting goods store. His speed on the bike is 6 mi/h faster than his walking speed. what is Marcus' walking speed?

Answers

$d-distance\nt-time\nv-speed$

$d_1=1mile\nd_2=2.5miles\nt_1=t_2\nv_1+6=v_2\n\nv=(d)/(t)\to vt=d\to t=(d)/(v)\n\n(d_1)/(v_1)=(d_2)/(v_2)\n\n(1)/(v_1)=(2.5)/(v_1+6)\n\ncross\ multiply:\n2.5v_1=v_1+6\n2.5v_1-v_1=6\n1.5v_1=6\ \ \ \ \ /:1.5\nv_1=4\n\nAnswer:Marcus'\ walking\ speed\ is\ 4\ mph.$

Please Help!I have a math test coming up and this geometry stuff is just always confusing me. With that said if you could explain your answer that would be wonderful.
If the image is to blurry please just click on the image it is much easier to read.
I am willing to mark a person branliest!

All help is very appreciated. Good Luck. God Bless. Stay Safe. Thanks Max Larson

Answers

Answer:

1. this is the definition of a midpoint - bc the definition of a midpoint is: “If a point is a midpoint of a segment, then it divides that segment into two congruent parts” or “If a point divides a segment into two congruent parts, then it's the midpoint of that segment.”

2. this is the division property of equality -"The division property of equality states that when we divide both sides of an equation by the same non-zero number, the two sides remain equal". so, in this situation we want to isolate x which means dividing both sides by 20. This will keep both sides equal just more simplified ( before, it was 20 and 100, after dividing both sides by 20 it is 1 and 5 which is the same ratio therefore they are still equal)

3. this one's the subtraction property of equality- this property means you can subtract the same number from both sides of an equation and get an equivalent equation. in this situation, they subtracted 15 from both sides to get AB = 30 and it ends being still being equal to AB + 15= 45.

4. this is the symmetric property of equality - "This property states that if a = b, then b = a. That is, we can interchange the sides of an equation, and the equation is still a true statement." "it states that values are still equal no matter which side of the equal sign they're on." That's why its possible for XY=ST and ST=XY

5. this is definition of congruence - which basically states that if a value of one thing is equal to the value of another thing those two things can be called congruent.

6. this is substitution property- this is the property that allows you to substitute one value for another in an equation. the property states that if

x = y, then x can be substituted in for y in any equation, and y can be substituted for x in any equation, just like what they show here with 5AB substituting for CD in the equation.

i hope this helped! im not that good at explaining so if u have more questions lmk!

Which shows the factored form of x2 – 12x – 45?(x + 3)(x – 15)
(x – 3)(x – 15)
(x + 3)(x + 15)
(x – 3)(x + 15)

Answers

Hi!

(x+a)·(x+b) = x²+xa+xb+ab = x²-12x-45

x² = x²
xa+xb = (a+b)x = -12x ⇒ (a+b) = -12
ab = -45

When (a+b) = -12 and ab = -45?

+3-15 = -12 and (+3)(-15) = -45
-3-15 = -18 and (-3)(-15) = +45
+3+15 = +18 and (+3)(+15) = +45
-3+15 = +12 and (-3+15) = -45

Answer:

(x+3)(x-15)

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