The value of 2(28+7) is...

Mathematics

2 answers:

Lelu [443]4 years ago

5 0

$2(28+7)$

$
2*35
 
$

$= 70$

labwork [276]4 years ago

5 0

The answer would be 70 Because you do 2x(28+7) when a number is close to the perenthis you multiply

You might be interested in

Remember to show work and explain. Use the math font.

fiasKO [112]

Answer:

$\large\boxed{1.\ f^{-1}(x)=3\log_5x}\\\boxed{2.\ f^{-1}(x)=\log_6(-x)}$

Step-by-step explanation:

$\log_ab=c\iff c=a^b\\\\\log_aa^n=n\\---------------------\\\\1.\\y=5^{\frac{x}{3}}\\\\\text{Exchange x and y}\\\\5^\frac{y}{3}=x\\\\\text{Solve for y:}\\\\5^\frac{y}{3}=x\qquad\log_5\text{of both sides}\\\\\log_55^\frac{y}{3}=\log_5x\Rightarrow\dfrac{y}{3}=\log_5x\qquad\text{multiply both sides by 3}\\\\y=3\log_5x\\---------------$

$2.\\y=-6^x\\\\\text{Exchange x and y:}\\\\-6^y=x\\\\\text{Solve for y:}\\\\-6^y=x\qquad\text{change the signs}\\\\6^y=-x\qquad\log_6\ \text{of both sides}\\\\\log_66^y=\log_6(-x)\Rightarrow y=\log_6(-x)$

6 0

4 years ago

Block B

Troyanec [42]

Answer:

a and d

Step-by-step explanation:

8 0

3 years ago

Someone solve for X please ? Step by step

irina1246 [14]

Start by distributing the 7 to both terms on the left hand side, and the 5 to both terms on the right hand side.

7(x - 2) = 5(x + 4)
7x - 14 = 5x + 20

Now, to solve for x, start by isolating the variable as much as you can.
7x - 5x = 20 + 14
2x = 34

x = 17

3 0

3 years ago

What does -5+3x equals

SCORPION-xisa [38]

Answer:

Step-by-step explanation:

10-10=0

7 0

3 years ago

Read 2 more answers

What is the solution of the system? Use a graph.<br> y = –x + 2<br> y = 3x – 1

laila [671]