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3 years ago

Hello can someone please help me on this :)

Mathematics

2 answers:

Zielflug [23.3K]3 years ago

6 0

Answer:

Step-by-step explanation:

Find value of P that makes this true

4p-5=`9

Solve for P by isolating it on one side:

4p-5+5=9+5

4p/4=14/4

P=3.5

Translate the Algebraic Expression:

A waiter earns $128 for 6 hours of work including $86 of tips.

Subtract tips from total:

128-86=42

Divide Value between hours.

42/6=7

$7 per hour

Find the Value of X that makes this true

-4x+26=-2

Solve for X by isolating it on one side:

-4x+26-26=-2-26

-4x/-4=-28/-4

X=7

What is the first correct step in solving the equation:

33-2x=31

Subtract 33 from both sides

HOPE I HELPED!

BRAINLIEST WOULD BE APPRECIATED!

Oksanka [162]3 years ago

4 0

Answer:

Question 5) x=7

Question 6) You want to subtract 33 from both sides (first option)

Question 7) p=6

Question 8) 21.33 dollars each hour

Step-by-step explanation:

Question 5) You want to do inverse operations in these type of questions and do it on both sides.

-4x+26(-26)=-2(-26) (first subtract 26 from both sides)

-4x=-28 (divide -4 from both sides)

x=7

Question 7) You want to do inverse operations in these type of questions and do it on both sides again.

4p-5(+5)=19(+5) (Add 5 on both sides)

4p=24 (Divide 4 from both sides)

p=6

Question 8) 128 = 6hours ( divide by 6 to get 1 hour)

21.33 dollars = 1 hour (Add on the tip which is 86)

The waiter earns 107.33 dollars

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Can someone please help me with these math problems ASAP?!<br> Thanks in advance! ;)

Mamont248 [21]

Answer:

11) Here given Function,

$f(x) = \sqrt{2x-11}$

And, $g(x) = -|0.1|x+5$

For f(x) = g(x)

$\sqrt{2x-11}=-|0.1|x+5$

$2x-11=(-|0.1|x+5)^2$

$2x-11=0.01x^2 - 10|0.1|x+25$

$2x=0.01x^2 - 10|0.1|x+25+11$

$2x=0.01x^2 - 10|0.1|x+36$

$0.01x^2 - 10|0.1|x - 2x+36=0$

When we solve this equation,

We found,

x = 12.5227 ≈ 12.53

Thus, the required solution is, x = 12.53

12) Here the height of rocket A in x second,

$f(x) = -16x^2+74x+9$

And, The height gain by the rocket B in x seconds,

$g(x) = -16x^2+82x$

If at x seconds both A and B gain the same height,

That is, f(x) = g(x)

⇒ $-16x^2+74x+9= -16x^2+82x$

⇒ $74x + 9 = 82x$

⇒ $82x - 74x = 9$

⇒ $8x = 9$

⇒ x = 1.125 ≈ 1.13

Thus, the required solution is x = 1.13 seconds (approx)

4 0

3 years ago

Can someone please answer this?

rosijanka [135]

Answer:

13 foot rounded to the nearest foot

Step-by-step explanation:

the ratio is

nose to head: 2:9

Rushmore mountain Roosevelt :

nose to head : x/60

2/9=x/60

120=9x

x=120/9= 13 1/3 or 13.33

x=13 foot rounded to the nearest foot

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3 years ago

Find the missing side length of the right triangle

mr_godi [17]

B) 29
Because 20^2+21^2=c^2

7 0

3 years ago

Read 2 more answers

If a = √3-√11 and b = 1 /a, then find a² - b²

Serga [27]

If $b=\frac1a$ , then by rationalizing the denominator we can rewrite

$b = \dfrac1{\sqrt3-\sqrt{11}} \times \dfrac{\sqrt3+\sqrt{11}}{\sqrt3+\sqrt{11}} = \dfrac{\sqrt3+\sqrt{11}}{\left(\sqrt3\right)^2-\left(\sqrt{11}\right)^2} = -\dfrac{\sqrt3+\sqrt{11}}8$

Now,

$a^2 - b^2 = (a-b) (a+b)$

and

$a - b = \sqrt3 - \sqrt{11} + \dfrac{\sqrt3 + \sqrt{11}}8 = \dfrac{9\sqrt3 - 7\sqrt{11}}8$

$a + b = \sqrt3 - \sqrt{11} - \dfrac{\sqrt3 + \sqrt{11}}8 = \dfrac{7\sqrt3 - 9\sqrt{11}}8$

$\implies a^2 - b^2 = \dfrac{\left(9\sqrt3 - 7\sqrt{11}\right) \left(7\sqrt3 - 9\sqrt{11}\right)}{64} = \boxed{\dfrac{441 - 65\sqrt{33}}{32}}$

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2 years ago

2 MATH K.

Ann [662]

Answer:

Step-by-step explanation:

Given the addition problem:

58 + 36

We can form a table :

5 _______ 8

3 _______ 6

9 4

Hence, (58 + 36) = 94

4 0

3 years ago