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andreyandreev [35.5K]

3 years ago

13

Please help me if you get the answer correct you become BRAINLIEST. It takes Diego 124 of an hour to complete a lap on a circula

r bike track. The track is 13 mile long. What is Diegoâ€™s bike speed?

1 answer:

AlexFokin [52]3 years ago

7 0

Answer:

speed = distance × time

speed= 13 × 0.48

speed = 6.24 m/s

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Twenty times y is at most 100 in interval notation

DiKsa [7]

Answer:

$y\in (-\infty ,5]$

Step-by-step explanation:

In this problem, we need to write "Twenty times y is at most 100 in interval notation ".

20 times y means, 20y

Atmost means an inequality which is $\le$

ATQ,

$20\times y\le 100$

i.e.

$20y\le 100\\\\y\le 5$

We can also write it as :

$y\in (-\infty ,5]$

Hence, the required interval notation is $y\in (-\infty ,5]$ .

7 0

3 years ago

What is the area of a triangle with a base of 6mm and a height of 9mm

baherus [9]

Areaa= 0.5 b h
= 0.5 x 9 x 6 = 27 mm

8 0

3 years ago

Carlos is using the quadratic formula to find the solutions of y=3x^2-5x-2. Which of the following will simplify to the correct

Nana76 [90]

Answer:

$Fx=\frac{5\pm\sqrt{25+24} }{6}$

Step-by-step explanation:

A quadratic equation in one variable given by the general expression:

$ax^2+bx+c$

Where:

$a\neq 0$

The roots of this equation can be found using the quadratic formula, which is given by:

$x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}$

So:

$y(x)=3x^2-5x-2=0$

As you can see, in this case:

$a=3\\b=-5\\c=-2$

Using the quadratic formula:

$x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}=\frac{-(-5)\pm\sqrt{(-5)^2-4(3)(-2)} }{2(3)}=\frac{5\pm\sqrt{25+24} }{6}$

Therefore, the answer is:

$Fx=\frac{5\pm\sqrt{25+24} }{6}$

4 0

3 years ago

What is the solution of the equations y=-x and y=-14X+1?

oksano4ka [1.4K]

The solution as in where do they intersect? if so, it would be 0.0769 and -0.0769

4 0

3 years ago

Eva had 7/8 gallon of paint. His brother ivan used 1/4 gallon to paint his model boat. Eva needs at least 1/2 gallon to paint he

algol13

Answer: .625 (yes he did leave enough

Step-by-step explanation: First you need to divde the fractions( or solve them) ,so 7 divided by 8 and so on Then you take subtract the paint ivan used, if it is less than half than ivan didn't leave enough for his poor sister

but there are other ways if this one is to hard

6 0

3 years ago