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2 years ago

What is the average speed if Time = 3 Distance = 90

Mathematics

1 answer:

Natasha2012 [34]2 years ago

6 0

Speed= distance divided by time. The answer is 30, and im assuming miles per hour. Hope this helps

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What is the percent decrease from 10 to 3

iragen [17]

10 is the old value and 3 is the new value. In this case we have a negative change (decrease) of -70 percent because the new value is greater than the old value. The answer is -70 percent.

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2 years ago

What congruent postulate is needed for these triangles

Ann [662]

Answer:

i hope this helps you

Step-by-step explanation:

answer is c

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2 years ago

Read 2 more answers

PLEASEEE HURRYYY

Masteriza [31]

Answer:

(2,-5) and (2,1).

Step-by-step explanation:

We need to find the find all the points having an x coordinate of 2 whose distance from the point (-2,-4) is 5.

A circle with center (-2,-4) and radius 5 represents all the points whose distance from the point (-2,-4) is 5.

Standard form of a circle is

$(x-h)^2+(y-k)^2=r^2$

where, (h,k) is center and r is the radius.

$(x-(-2))^2+(y-(-4))^2=(5)^2$

$(x+2)^2+(y+2)^2=25$

Now, put x=2.

$(2+2)^2+(y+2)^2=25$

$(4)^2+(y+2)^2=25$

$(y+2)^2=25-16$

$(y+2)^2=9$

Taking square root on both sides.

$y+2=\pm\sqrt{9}$

$y+2=\pm3$

$y+2=-3\text{ or }y+2=3$

$y=-5\text{ or }y=1$

So, the y-coordinates of the points are -5 and 1.

Therefore, the required points are (2,-5) and (2,1).

8 0

2 years ago

Slove the following equation for number x. verify tht your solution is correct 3/4(x+8) =9

Tanya [424]

3/4 (x+8)=9
3/4x+6=9
-6
3/4x=3
X=4
Check
3/4(4+8)=9
3/4 (12)=9
9=9

3 0

2 years ago

I don’t understand this, can someone please explain and show the answers please

OLga [1]

your answer would be A. 122/27

3 0

2 years ago