All categories

2 years ago

5.4+ 3(52-15 +2) What is it

Mathematics

2 answers:

AveGali [126]2 years ago

8 0

Answer:

122.4

Step-by-step explanation:

You need to use PEMDAS. First solve everything in the parenthesizes. So 52-15 is 37+2 is 39. Then do 3*39 which is 117. Then do 117+5.4 which is 122.4 :)

iragen [17]2 years ago

3 0

Answer:

122.4

Step-by-step explanation:

Remember PEMDAS

Parentheses

Exponents

Multiply

Divide

Add

Subtract

(52-15+2)=39

39x3=117

117+5.4=122.4

You might be interested in

Factorise- 6y-15y^2<br> HELP

Citrus2011 [14]

We will take the common terms in the expressions-

Here in the expression, 3y is a common term.
So,

$6y - 15y^{2}$

$3y(2 - 5y)$

So, the answer is $3y(2 -5y)$

7 0

3 years ago

Read 2 more answers

What is the inverse of f(x) = sqft x+ 3

grin007 [14]

Answer:

$f^{-1} (x)=x^{2} -3$

Step-by-step explanation:

Given the function

$f\left(x\right)=\sqrt{x+3}$

We can find the inverse function by exchanging x and y, and then solve for y.

$y=\sqrt{x+3}$

Replace x with y.

$x=\sqrt{y+3}$

square both sides

$x^2=y+3$

$y=x^2-3$

Hence,

$f^{-1} (x)=x^{2} -3$

8 0

2 years ago

Solve the solution of equations. <br><br> 3x + 4y = -23<br><br> X = 3y + 1 <br><br> X = <br><br> Y =

Greeley [361]

Answer:

Step-by-step explanation:

$\left\{\begin{array}{ccc}3x+4y=-23&(1)\\x=3y+1&(2)\end{array}\right\\\\\text{Substitute (2) to (1):}\\\\3(3y+1)+4y=-23\qquad\text{use the distributive property}\\\\(3)(3y)+(3)(1)+4y=-23\\\\9y+3+4y=-23\qquad\text{subtract 3 from both sides}\\\\13y=-26\qquad\text{divide both sides by 13}\\\\\boxed{y=-2}\\\\\text{Put the value of }\ y\ \text{to (2)}:\\\\x=3(-2)+1\\\\x=-6+1\\\\\boxed{x=-5}$

4 0

2 years ago

Read 2 more answers

How do I answer question b?

SCORPION-xisa [38]

The answer for that would be 2 raise to 5. solution:

2 ³ x 2 raise to 6 = 2 raise to 9
thus, you have now,
2 raise to 9 over 2 raise to 4

subtracting 4 from 9
the Answer is 2 raise to 5

7 0

3 years ago

Wal-Mart is selling 12 highligters for $5.47. What is the unit price of the highlighters? (round the price to the nearest hundre

BaLLatris [955]

To be able to quickly solve this, we can temporarily make 5.47 into 547

Now, we can divide 547 by 12.

$547 / 12 = 45.5$

Now, we can round up from 45.5 to get 46.

However, we originally moved our decimal 2 places over, so now we must move it 2 places again.

46 ⇒ 0.46

The correct answer is $0.46

4 0

3 years ago