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3 years ago

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Help! First correct answer will get brainliest. Jarvis ran 8 laps around a track to run a total of 1 mile on Monday. How many la

ps will she need to run 3/8 on Tuesday.

1 answer:

VARVARA [1.3K]3 years ago

4 0

Answer:

3 laps because if 8 laps is equal to 1 mile, then 8/8 laps is one mile so 3 laps is equal to 3/8 of a mile. Hope it helps

Step-by-step explanation:

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Prove that if x and y are distinct and positive real numbers then (x/y) + (y/x) > 2. discuss the conditions (on x and y) unde

zepelin [54]

1.

$\dfrac{x}{y}+\dfrac{y}{x} > 2|\cdot xy\\ x^2+y^2>2xy\\ x^2-2xy+y^2>0\\ (x-y)^2>0$

$(x-y)^2>0$ is true for any two real numbers such that $x\not =y$ , all the more for positive ones.

2.

$x=y$

5 0

4 years ago

KatRina [158]

C and D are the same answers. so between those two possibilities.

6 0

3 years ago

Which is an example of the associative property?

Mice21 [21]

<h3>(8.4 + 10.3) + (–4.1) = 8.4 + (10.3 + (–4.1)) is a example of associative property of addition</h3>

<em><u>Solution:</u></em>

Given that we have to find the associative property of addition

$a + (b+c) =(a+b) + c$

When we add, we can group the numbers in any combination

<em><u>Option A</u></em>

–(18.9 + 3.2) = –18.9 + (–3.2)

Here, negative sign outside the bracket is distributed to terms inside the bracket

This is not a example of associative property

<em><u>Option B</u></em>

–5.5 + 7.9 = 7.9 + (–5.5)

By commutative property of addition,

a + b = b + a

This, is commutative property of addition

<em><u>Option C</u></em>

–17.5 + 0 = –17.5

This is also not a example of associative property

<em><u>Option D</u></em>

(8.4 + 10.3) + (–4.1) = 8.4 + (10.3 + (–4.1))

We can group the numbers in any combination

This is a example of associative property of addition

7 0

3 years ago

What is the value of y? Enter your answer in the box. y = An isosceles triangle with vertices labeled A, B, and C. Side B C is t

masha68 [24]

Answer:

$y = 5$

Step-by-step explanation:

Given:

An isosceles triangle ABC with AB = AC.

∠A = $(4y+10)\°$

∠B = $75\°$

∠C = $(3x)\°$

We know that, for an isosceles triangle, the angles opposite equal sides are also equal to each other.

Therefore, ∠B = ∠C

⇒ $75 = 3x$

⇒ $x=\frac{75}{3}=25$

∴ ∠C = $3\times 25=75$ °

Now, the sum of all the interior angles of a triangle is always 180°.

$\angle A + \angle B + \angle C=180\\(4y+10)+75+75=180\\4y+10+150=180\\4y+160=180\\4y=180-160\\4y=20\\y=\frac{20}{4}=5$

Therefore, the value of 'y' is 5.

5 0

3 years ago

Find the amount in an account if $45,050 is invested at 7.001% compounded quarterly, for 12 years and 3 months.

Korolek [52]

$A=P(1+ \frac{r}{n})^{tr}$
a=future amount
p=present amount
r=rate in decimal
n=number off time per year compouonded
t=time in years

P=45,050
r=0.07001
n=4
t=1.25

$A=45,050(1+ \frac{0.07001}{4})^{(1.25)(4)}$
$A=45,050(1+ 0.0175025)^{5}$
$A=45,050(1.0175025)^{5}$
A=49132.8798
round
A=$49,132.88

4 0

3 years ago