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3 years ago

PLEASE HELP! I WILL GIVE BRAINLIEST! Determine whether the statement is always, sometimes, or never true.

Mathematics

1 answer:

marishachu [46]3 years ago

7 0

Answer:

Step-by-step explanation:

13. All equilateral triangles are acute triangles. An equilateral triangle has three sides of equal length and three equal angles of 60.~ I think it is False.

14. If a triangle has two acute angles, then the third angle must also be acute.~ I think it is true.

15. A triangle cannot be right-angled and obtuse angled at the same time. Since a right-angled triangle has one right angle, the other two angles are acute. Therefore, an obtuse-angled triangle can never have a right angle; and vice versa. ~I think it is false.

Please don't trust me... I hope I helped

~LampteyJ

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Hi please i nedd help with these questions .

Vlad1618 [11]

Answer:

Step-by-step explanation:

#1:

$\frac{18m^2u}{16n^3v^2} \div \frac{24m}{15nu^3}*\frac{8n^2v^3}{30m^3u}$

division sign means that we flip the fraction

$\frac{18m^2u}{16n^3v^2} * \frac{15nu^3}{24m}*\frac{8n^2v^3}{30m^3u}$

now we can multiply all the constants together and all variables

$m: (m^2)/(m*m^4) = (m^2)/(m^4) = 1/(m^2)\\u: (u * u^3)/(u) = (u^4)/(u) = u^3\\n: (n*n^2)/(n^3) = 1\\v: (v^3) / (v^2) = v\\(18*15*8)/(16*24*30) = \frac{3}{16}$

now we can combine all the parts

$\frac{3u^3v}{16m^2}$

#2:

$\frac{24a^2b^3c}{9bc^3}\div\frac{4a^5bc^3}{27a^3b^2c}$

$\frac{24a^2b^3c}{9bc^3}*\frac{27a^3b^2c}{4a^5bc^3}$

$a: (a^2 * a^3)/(a^5) = 1\\b: (b^3 *b^2)/(b*b) = b^3\\c: (c*c)/(c^3*c^3)= 1/(c^4)\\(24*27)/(9*4)= 18$

$\frac{18b^3}{c^4}$

3 0

3 years ago

Read 2 more answers

15x+25=5x+175. If i am trying to find the answer to this, wouldn't i just subtract 5x from both sides and 25 from both sides????

Sav [38]

Yes, u would

15x + 25 = 5x + 175...subtract 5x and 25 from both sides
15x - 5x = 175 - 25
10x = 150
x = 150/10
x = 15

6 0

4 years ago

Read 2 more answers

What is the multiplicative inverse of -13/14

Zina [86]

The multiplicative inverse of -13/14 as in the task content is; -14/13.

<h3>What is the multiplicative inverse of -13/14?</h3>

The multiplicative inverse of a number x is given as; 1/x.

On this same note, it follows that since, the number whose multiplicative inverse is to be found is: -13/14, the multiplicative inverse is; -14/13.

Read more on multiplicative inverse;

brainly.com/question/1682347

#SPJ1

3 0

2 years ago

1. m∠ABD=50°, m∠DBC=40° Given 2. m∠ABD+m∠DBC=m∠ABC Response area 3. Response area Substitution Property of Equality 4. Response

galina1969 [7]

Answer:

<abd+<dbc=<Abc

50+40=90

triangle abc is a right angled triangle being one angle 90 degree

6 0

3 years ago

The mass of a block of stone is 2,000 kg. If the block has a volume of 0.5m

rodikova [14]

Density = Mass / Volume = 2000/0.5
Density = 4000 Kg/m^3

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3 years ago