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Evgesh-ka [11]
3 years ago
8

Find the slope given: (3,-10) & (4, -21) m =

Mathematics
1 answer:
sukhopar [10]3 years ago
3 0

Answer:

<em>m = -11</em>

Step-by-step explanation:

First, use the slope format: <em>y2 - y1/x2 - x1</em>

-21 and -10 being y2 & y1, while 4 and 3 being x2 & x1:

-21 - (-10)/4 - 3

(Note: replace - (-10) with + 10 to make it easier)

Subtract -21 and -10, then 4 and 3.

You will get -11/1, which if simplified, is <em>-11</em>

Hope this helps!

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Can someone pls help me
skelet666 [1.2K]

The midpoint is

(-4+0) / 2, (7 + (-3))/ 2            The first one is x coordinate and 2nd is the y cood)

= (-2, 2)    answer

6 0
3 years ago
3. A quadratic polynomial whose<br>product and the sum of<br>zéroes are -12 and 1​
muminat

Answer:

the equation is : x²-x-12

Step-by-step explanation:

the quadratic equation is in the form of : y=ax²+bx+c

the product of the zeros is -12 and the sum is 1

b  = - 1

c=-12 (product)

y=x²-x-12

check : factorize first (x+3)(x-4)=0

either x+3=0 then x=-3

or x-4=0 then x=4

-3*4=-12

-3+4=1

the equation is : x²-x-12

3 0
3 years ago
Which measurement that does not belong 3500 km, 3.5 m, 350cm, 3500mm
scoundrel [369]
Hello! 3.5m is equivalent to 350cm, which is also equivalent to 3,500mm. 100cm = 1 meter and 10mm = 1cm. 350/100 is 3.5. 3,500/10 is 350. 3,500 km does not belong, because that measurement would be way too big. The answer is 3,500km
4 0
3 years ago
9.01 prove that the two circles are similar
il63 [147K]

Answer:

see the procedure

Step-by-step explanation:

we know that

Figures can be proven similar if one, or more, similarity transformations (reflections, translations, rotations, dilations) can be found that map one figure onto another.  

In this problem to prove circle C and circle A are similar, a translation and a scale factor (from a dilation) will be found to map one circle onto another.

we have that

Circle C is centered at (0,-1) and has a radius of 2 units

Circle A is centered at (3,4) and has a radius of 5 units

step 1

Move the center of the circle C onto the center of the circle A

the transformation has the following rule

(x,y)--------> (x+3,y+5)

so

(0,-1)------> (0+3,-1+5)-----> (3,4)

center circle C is now equal to center circle A  

The circles are now concentric (they have the same center)

step 2

A dilation is needed to increase the size of circle C to coincide with circle A

scale factor=radius circle A/radius circle C-----> 5/2=2.5

radius circle C will be=2*scale factor-----> 2*2.5=5 units

radius circle C is now equal to radius circle A  

therefore

A translation, followed by a dilation will map one circle onto the other, thus proving that the circles are similar

4 0
3 years ago
Rachel rounded 16,473 to the nearest hundred.Then she rounded her anzer to the nearest thousand.What is the final number
musickatia [10]

The hundreds place is underlined: 16,<u>4</u>73.

Look at the number to the right of the hundreds place. It is a 7. Because 7 is greater than 5, round up

16473 rounded to the nearest hundred is 16500

Next, she takes the number to round to the nearest thousand.

Remember that 5 and greater round up.

16500 rounded to the nearest thousand is 17000

17000 is your answer

hope this helps

8 0
3 years ago
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