All categories

4 years ago

IS 3x+4=8x-9 one solution, no solution or infinitely Many

Mathematics

2 answers:

Studentka2010 [4]4 years ago

7 0

One solution 13/5 or 2.6

miskamm [114]4 years ago

7 0

Answer:

One solution

Step-by-step explanation:

Seperate the like terms.

3x-8x=-9-4

-5x=-9-4

-5x=-13

x=13/5

You might be interested in

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...

3 0

3 years ago

Whats the place value of number 4 in the number 1 345.87?

natali 33 [55]

Answer:

Tens

Step-by-step explanation:

Decimal Place Values:

millions

hundred thousands

ten thousands

thousands

hundreds

tens

ones

. decimal point

tenths

hundreths

thousandths

ten thousandths

6 0

3 years ago

Problem

Mrrafil [7]

Answer:

777

join my zoom meeting no audio no camera just chat

Step-by-step explanation:

Pass code: G0qkw3

ID: 448251

Numeric Passcode: 756933

8 0

4 years ago

9.921 how do you round it to the nearest hundredth

Evgesh-ka [11]

$9.921\to\boxed{9.920}$

4 0

3 years ago

Read 2 more answers

Fiona, an avid food blogger posted a total 216 recipes in 36 weeks. If she posted them at a constant rate, how many recipes did

Cloud [144]

Answer:

Step-by-step explanation:

216/36= 6

6 times 15=90

Hope this helped

5 0

3 years ago

Read 2 more answers