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3 years ago

13

Solve: 3(2x - 5) = 6x - 15 A) 0 B) 1 C) 20 D) infinitely many solutions

2 answers:

REY [17]3 years ago

7 0

Answer:

<h2>Infinitely many Solutions</h2>

Step-by-step explanation:

Darya [45]3 years ago

5 0

If you would like to solve <span>3(2x - 5) = 6x - 15, you can do this using the following steps:

</span><span>3(2x - 5) = 6x - 15
3 * 2x - 3 * 5 = 6x - 15
6x - 15 = 6x - 15
0 = 0

The correct result would be D) infinitely many solutions.</span>

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Valid names for the given triangle

astraxan [27]

Answer:

The valid names of the triangle are those that has all the angles withing. The angles are Angle l, M and Z. C and D are not angles, so any triangle cannot be formed using these

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3 years ago

Jane and Mo have 528 parcels to

Temka [501]

Answer:

Jane gave 132 parcels to Mo.

Step-by-step explanation:

Given total number of parcels both Jane and Mo have = 528.

Let the number of parcels having Jane and Mo be x and y respectively.

$Therefore\ x\ +\ y\ =\ 528\ equation\ 1\\x\ =\ 3y\ equation\ 2$

Now let the number of parcels Jane gives to Mo be z.

$So\ according\ to\ question\ x-z = y+z\\3y-z=y+z(from\ equation\ 2)\\2y=2z\\y=z$

$x+y=528\\3y+y=528\\4y=528\\y=132\\y=z=132$

So the number of parcels Jane give to Mo is 132.

8 0

3 years ago

Hello, precalc, need help on finding csc

Ainat [17]

Recall the double angle identity for cosine:

$\cos(2x) = \cos^2(x) - \sin^2(x) = 1 - 2 \sin^2(x)$

It follows that

$\sin^2(x) = \dfrac{1 - \cos(2x)}2 \implies \sin(x) = \pm \sqrt{\dfrac{1-\cos(2x)}2} \implies \csc(x) = \pm \sqrt{\dfrac2{1-\cos(2x)}}$

Since 0° < 22° < 90°, we know that sin(22°) must be positive, so csc(22°) is also positive. Let x = 22°; then the closest answer would be C,

$\csc(22^\circ) = \sqrt{\dfrac2{1-\cos(44^\circ)}} = \sqrt{\dfrac2{1-\frac5{13}}} = \dfrac{\sqrt{13}}2$

but the problem is that none of these claims are true; cot(32°) ≠ 4/3, cos(44°) ≠ 5/13, and csc(22°) ≠ √13/2...

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2 years ago

I can’t find the area can you please help me with it. It’s the question with the question mark

Romashka-Z-Leto [24]

Answer:

1947 units^2

Step-by-step explanation:

you can split it up into different sections of rectangles.

the first one is 25x39= 975

The second section is the connector which you do

43-25=18

and you do 39-27=12 and then

you multiple 18x12 which equals 216

and the final section you do 24+12=36

and 36x21=756

and finally you add them all up to equal 1947 units^2

6 0

3 years ago

Which expression is equivalent 3m+1-m? <br> 2+ m-1+m<br> 1+m<br> 3m-1<br> 3m

Papessa [141]

Answer:

2+ m-1+m..............

7 0

3 years ago