All categories

3 years ago

What is the value of x?

Mathematics

2 answers:

Ray Of Light [21]3 years ago

8 0

Answer:

x=9

Step-by-step explanation:

prohojiy [21]3 years ago

5 0

Answer:

x = 11/7y + 8/7

Step-by-step explanation:

So, the tick mark means that the angles are equal.

Here is the equation you can use:

7x - 3 = 11y + 5

+3 +3

7x = 11y + 8

/7 /7

x = 11/7y + 8/7

You might be interested in

Consider triangle PQR. What is the length of side QR?

love history [14]

Answer: 16 units

Step-by-step explanation:

5 0

3 years ago

Find the given higher-order derivative.<br><br> f''(x) = 9- 3/x<br><br> f'''(x)=

Genrish500 [490]

Answer:

$f'''(x)=\frac{3}{x^{2}}$

Step-by-step explanation:

We are given with Second-order derivative of function f(x).

$f''(x)=9-\frac{3}{x}$

We need to find Third-order derivative of the function f(x).

$f''(x)=9-\frac{3}{x}=9-3x^{-1}$

We know that,

f'''(x) = (f''(x))'

So,

$f'''(x)=\frac{\mathrm{d}\,f''(x)}{\mathrm{d} x}$

$f'''(x)=\frac{\mathrm{d}\,(9-3x^{-1})}{\mathrm{d} x}$

$f'''(x)=\frac{\mathrm{d}\,9}{\mathrm{d} x}-\frac{\mathrm{d}\,3x^{-1}}{\mathrm{d} x}$

$f'''(x)=0-3\frac{\mathrm{d}\,x^{-1}}{\mathrm{d} x}$

$f'''(x)=-3(-1)x^{-1-1}$

$f'''(x)=3x^{-2}$

$f'''(x)=\frac{3}{x^{2}}$

Therefore, $f'''(x)=\frac{3}{x^{2}}$

4 0

4 years ago

On a bicycle ride,Betty rode 7 miles in 2 hours. At the same rate of speed,how far could she ride in 8 hours?Please hurry

prohojiy [21]

D 28 miles you want to multiply by 4 so 7x4 =28

3 0

3 years ago

Write and solve an equation to find the value of x and the missing angle measures

meriva

Answer:

x+85 + x+105 = 180

x = -5

x+85 = -5+85 = 80

x+105 = -5+105 = 100

Step-by-step explanation:

The two angles form a straight line so they add to 180

x+85 + x+105 = 180

Combine like terms

2x + 190 = 180

Subtract 190 from each side

2x+190-190 = 180-190

2x = -10

Divide by 2

2x/2 = -10/2

x = -5

x+85 = -5+85 = 80

x+105 = -5+105 = 100

5 0

4 years ago

Read 2 more answers

Answer all three for 40 points

Stolb23 [73]

So remember that with more than one pair of parentheses, you have to start from the inside and make your way outside.

Firstly, on the left side, solve 5+2 and on the right side solve 4 × 3:

$4[3(7)]=95-12$

Next, on the left side, solve 3 × 7 and on the right side solve the subtraction:

$4[21]=83$

Lastly, solve the remaining multiplication on the left side and the answer is $84= 83$

<u>Since 84 is not equal to 83, the correct answer is the second option.</u>

For this, plug 5 into the z variable to solve.

$3*5=2*5+5\\15=10+5\\15=15$

<u>Since 15 = 15 is true, your answer is the first option.</u>

So for this, it's a similar process as Question 2 except that you are plugging in 0 into the x variable to solve:

$8-4*0=4*0\\8-0=0\\8=0$

<u>Since 8 = 0 is a false statement, the correct answer is the second option.</u>

4 0

4 years ago