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3 years ago

6

Suppose you have 3 pieces of string measuring 4 inches, 5 inches, and 10 inches. How many unique triangles can you form with the

se pieces of string?
A. 0
B. I
C. 2
D. Infinitely many

1 answer:

Svet_ta [14]3 years ago

4 0

I would say zero because the other strings wouldn’t be able to touch it

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Hi- I need help please to get my HS diploma...did not graduate :(

Karo-lina-s [1.5K]

Answer:

B

Step-by-step explanation:

first for the easy one : the curve line is dotted, if the line points are NOT part of the solution. and it is solid, if the points are included.

you know what the curve line indicates ? it indicates the points for which there is equality.

so, if there is a ">=" or "<=" relation, then that includes equality, and the curve is solid.

if there is only a true inequality ("<", ">"), then the curve is dotted, as the equality is not included.

so, I how this is now really clear.

in our case here (I suspect it really looks like this)

y + 4x <= x² + 2

we have a "<=" sign, so, the curve is ..., well ? ... well ? ...

well ? ... well ? ... solid !

and we still treat inequalities as much as possible as regular equalities.

so,

y <= x² - 4x + 2 (after subtracting 4x from both sides).

and now you see it, right ?

all y values that are smaller or equal to the quadratic expression.

SMALLER ! so, BELOW the curve (as the smaller y values are represented by the lower part of the y-axis).

4 0

2 years ago

A medical researcher says that less than 87â€‹% of adults in a certain country think that healthy children should be required to

Lyrx [107]

Answer: It is not enough evidence to support the researcher's claim.

Step-by-step explanation:

Since we have given that

n = 500

$\hat{p}=0.85$

So, the hypothesis are as follows:

$H_0:\hat{p}$

So, the z value would be

$z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}\\\\z=\dfrac{0.85-0.87}{\sqrt{\dfrac{0.87\times 0.13}{500}}}\\\\z=\dfrac{-0.02}{0.015}\\\\z=-1.33$

At α = 0.05

z= -1.64

So, 1.64<-1.33

So, we accept the null hypothesis.

Hence, it is not enough evidence to support the researcher's claim.

3 0

3 years ago

What is 5/6 * 3/7 ÷ 2/3

Butoxors [25]

Answer:

5/6 × 3/7 ÷ 2/3 = 45/84

Step-by-step explanation:

5/6 × 3/7 = 15/42

5 × 3 = 15

6 × 7 = 42

15/42 ÷ 2/3

15/42 × 3/2

15 × 3 = 45

42 × 2 = 84

15/42 × 3/2 = 45/84

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3 years ago

FIRST PERSON TO ANSWER GETS BRAINIEST ANSWER SO HURRY QUICK QUICK FIRST PERSON TO ANSWER GETS BRAINIEST ANSWER SO HURRY QUICK QU

Zielflug [23.3K]

1.92 cm = 15 cm
1.2 cm = ? cm

$\frac{15}{1.92} = \frac{?}{1.2}$

15*1.2 = 1.92*?
18 = 1.92*?
9.375 = ?

The answer is B

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2 years ago

Find (f•g)(2) given f(x)=x-3 and g(x)=x+3<br><br> Please show your work

marissa [1.9K]

Answer:

$f.g(x) = f(g(x))\\f(g(2)) = ?\\\\g(x) = x+3 \\g(2) = 5\\\\f(x) = x-3\\f(g(2)) = f(5) = 2=f.g(2)$

Step-by-step explanation:

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2 years ago