All categories

3 years ago

NEED YOUR HELP!! I WILL UPVOTE!

1 answer:

5 0

12x=-48 (divide 12 from both sides)
x=-4

10y-13y=30
-3y=30 (divide -3 from both sides)
-10=y

10x+14x=48
24x=48 (divide 24 from both sides)
x=2

You might be interested in

Which number is located between 15 and 20 on a number line?

jeyben [28]

Answer: 17.5 is located between them.

Step-by-step explanation:

To find out which number is located between the numbers, find their mean average which sum of the numbers divide by the number of values.

15 + 20 = 35

35 / 2 = 17.5

8 0

3 years ago

PLS HELP! What is the mistake made below in solving x2 – 12x + 10 = 0 using the completing the square method?

Masteriza [31]

Answer:

Step-by-step explanation:

Everything is correct. But you forgot to add

x = 6 - square root of 26. The answer is

x = 6 + square root of 26 or

x = 6 - square root of 26

4 0

3 years ago

Read 2 more answers

Two sides of a triangle have lengths 9 m and 13 m. The angle between them is increasing at a rate of 0.02radians /min. How fast

Olin [163]

Answer:0.175 m/s

Step-by-step explanation:

Given

Two sides of length 9 and 13 m

angle between them is increasing at an angle of 0.02 rad/min

rate of increasing of third at $\theta =\frac{\pi }{3}$

let a=9

b=13

c=unknown side

Now using cos rule of triangle

$cos\theta =\frac{a^2+b^2-c^2}{2ab}$

$cos\theta =\frac{a^2+b^2}{2ab}-\frac{c^2}{2ab}$

Differentiating both sides we get

$-\sin \theta \times \frac{\mathrm{d} \theta }{\mathrm{d} t}=0-2\frac{c}{2ab}\times \frac{\mathrm{d} c}{\mathrm{d} t}$

at $\theta =\frac{\pi }{3}$

c=11.53 m

substituting values we get

$\frac{\sqrt{3}}{2}\times 0.02=\frac{11.53}{9\times 13}\times \frac{\mathrm{d} c}{\mathrm{d} t}$

$\frac{\mathrm{d} c}{\mathrm{d} t}=0.175 m/s$

8 0

3 years ago

What is 9/7 divided by 3/4?

Tresset [83]

Answer:

12/7 or E

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Find m∠ABC. (2x+14) (x+7)

shepuryov [24]

Answer:

A= 2

B=28

C=0

Step-by-step explanation:

ax2 + bx + c=0

6 0

3 years ago