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3 years ago

Andy runs 434.56 meters in 62.08 seconds. If Andy runs at a constant speed, how far does he run in one second?

Mathematics

1 answer:

Fiesta28 [93]3 years ago

4 0

Answer:

I think the answer is 7.

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I need help with eight and nine you are to multiply the binominaals using the horizontal format

lorasvet [3.4K]

Answer:

8. $15m^2-31m+10\\$

9. $x^2y^2z^2+2xyz-3$

Step-by-step explanation:

$(a+b)(c+d)=ac+ad+bc+bd\\(3m-5)(5m-2)=3m*5m+3m(-2)-5*5m(-2)\\=3m*5m+3m(-2)-5*5m(-2)\\=15m^2-31m+10$

^#8^

$(xyz+3)(xyz-1)=xyzxyz+xyz(-1)+3xyz+3(-1)\\=xyzxyz+xyz(-1)+3xyz+3(-1)\\=x^2y^2z^2+2xyz-3$

^#9^

4 0

2 years ago

An arc subtends a central and measuring pi/2 radians.

Sindrei [870]

Answer:

1/4th

Step-by-step explanation:

This comes from knowing the unit circle in both radians and degrees. However, you could also calculate it from knowing that 360 degrees is 2 $\pi$ radians. What you'll find is that $\frac{\pi }{2}$ radians is 90 degrees, or 1/4th of the circle. This means that an arc measuring $\frac{\pi }{2}$ radians will be 1/4th of the entire circumference.

I hope this helps!

7 0

3 years ago

A triangle has an area of 75 square centimeters. if the base and height have equal length, what is the link? Round to the neares

Leni [432]

1/2*bh=75
1/2*bb=75
b^2=150
b=rt(150)=12.2
not sure what you mean by link, but 12.2 is approximately the length you're seeking

4 0

4 years ago

Johnathan is making his famius pasta dish his mom ate 2/7 of pasta and his

aniked [119]

$\dfrac{2}{7} + \dfrac{1}{6} = \dfrac{2 \times 6}{7 \times 6} + \dfrac{1 \times 7}{6 \times 7} = \dfrac{12}{42} + \dfrac{7}{42} = \dfrac{19}{42}$

$\boxed {\boxed {\text {Answer: They ate }\dfrac{19}{42} \text { of the pasta.}}}$

4 0

3 years ago

Read 2 more answers

What is the slope of the line that includes points (15,-3) and (16,1)

Rasek [7]

Answer:

-4

Step-by-step explanation:

I hope this helps

6 0

3 years ago