2 years ago

( 4 + − 5 ) × ( 7 − − 3 )

Mathematics

2 answers:

maks197457 [2]2 years ago

6 0

The Answer would be:

-10

SSSSS [86.1K]2 years ago

4 0

Answer:

-10

Step-by-step explanation:

4+-5 is the same as 4-5 =-1

7--3 is the same as 7+3 =10

-1 * 10 = -10

You might be interested in

Carlos worked 31.5 hours at a hospital as a volunteer. This represents 87.5% of his school’s requirement of community service. H

Artist 52 [7]

36 hours is the requirement

8 0

3 years ago

A bookstore observes that 2 out of 9 books sold are returned, if 360 books are sold how many will be returned

konstantin123 [22]

Answer:

79.992

Step-by-step explanation:

4 0

3 years ago

Help me please <img src="https://tex.z-dn.net/?f=f%28x%29%20%3D%20%20ln%28x%20%7B%20%7D%20%5E%7B2%7D%20%2B%202%20%29%20" id="

CaHeK987 [17]

➡Answer: x=√(e^y-2)

❇Explanation:
Step1: Let f(x)=y,then

↪y=ln(x²+2)

Step2: Converting it into exponential form,

↪e^y=x²+2

↪x²=e^y-2

Step3: Taking square root of both sides,

↪x=√(e^y-2)

❇Note:

ln means log with base e.

So in step 2 , base e of ln (x²+2) goes to other side in the form e^y. That is simply the property of log I used there..

Hope this helps!

3 0

3 years ago

Create a system of equations to represent the word problem. Then solve using the linear combination/elimination method. Show all

Leno4ka [110]

Answer:

Solution given:

model A printers [a] prints=80books per day

model B printers [b] prints=55books per day

total no of printers =9

no of model A printers be x

and

no of model B printers be [9-x]

According to the question;

ax+(9-x)b=670 books

substituting value of a and b; we get

80x+(9-x)55=670

80x-55x+495=670

25x=670-495=175

x= $\frac{175}{25}$ =7

So;

no of model A printers =x=7

no of model B printers =9-x=9-7=2

is your answer.

8 0

3 years ago

Read 2 more answers

Please help me this is due in 20 mins

vekshin1

Answer:

35cm

120cm^2

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers