MATHEMATICS MIDDLE SCHOOL

A mechanic can install carburetors in 3 cars every 4 hours. At that rate, how long will it take the mechanic to install carburetors in 5 cars?A. 6 hr. 20 min.
B. 6 hr. 40 min.
C. 7 hr. 15 min.
D. 7 hr. 30 min.
E. 7 hr. 45 min.

Answers

Answer 1
Answer:

Answer:

B, (6hr. 40 min)

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Answers

Answer:

9/10

Decimal: 0.9
0.9 in decimal form

What are the values of c makes x^2 + 6x + c a perfect square trinomial? 3
6
9
12

Answers

As per the given data, he value of c that makes x^2 + 6x + c a perfect square trinomial is c = 9.

What is trinomial?

A trinomial is a polynomial composed of three terms or monomials in elementary algebra.

To determine the value of c that makes x^2 + 6x + c a perfect square trinomial, we need to use the formula:

(a + b)^2 = a^2 + 2ab + b^2

In this case, we want to find two numbers a and b such that:

x^2 + 6x + c = (x + a)^2

Expanding the right-hand side, we get:

(x + a)^2 = x^2 + 2ax + a^2

Comparing the two expressions, we see that:

The linear coefficient of x is 2a

The constant term is a^2

Therefore, we need to find a number a such that 2a = 6 and a^2 = c. Solving for a, we get a = 3, and substituting into a^2 = c, we get c = 9.

Therefore, the value of c that makes x^2 + 6x + c a perfect square trinomial is c = 9.

For more details regarding trinomial, visit:

brainly.com/question/16347049

#SPJ7

Answer:

c = 9

Step-by-step explanation:

(a+b)^2=a^2+2ab+b^2\n\n\text{We have}\ x^2+6x+c=x^2+2(x)(3)+c\n\n\text{Therefore}\ c=3^2=9\n\nx^2+2(x)(3)+3^2=(x+3)^2

How to solve Slope Intercept Form equations?

Answers

I can help! Do you have an example problem that I can show you step by step?

Simplify the expression.

-p+3+2p-2p

Answers

 (3-2p)(2p-3) Final result : (3 - 2p)2 • -1 Step by step solution :Step  1  : 1.1    Rewrite  (2p-3)  as (-1) •  (3-2p) Multiplying Exponential Expressions :

 1.2    Multiply  (3-2p)  by  (3-2p) 

The rule says : To multiply exponential expressions which have the same base, add up their exponents.

In our case, the common base is  (3-2p)  and the exponents are :
          1 , as  (3-2p)  is the same number as  (3-2p)1 
 and   1 , as  (3-2p)  is the same number as  (3-2p)1 
The product is therefore,  (3-2p)(1+1) = (3-2p)2 

Final result : (3 - 2p)2 • -1

this is what i learned in school hope you understand
Combine Like Terms:=−p+3+2p+−2p=(−p+2p+−2p)+(3)=−p+3

Can anyone solve these problems

Answers

Answer:


Step-by-step explanation:

this is very easy.

2.

add the wholes 4+1 then before you solve anything you can simplify. 2 goes into 2 once so now the problem looks like 1/1 x 1/3 the answer for the first one is 5 1/3

3. we are going to do the same thing add the wholes 2 and 1. and since we cant simplify any more you are just going to multiply across 1 times 1 and 2 time 5 the answer is 3 1/10

6. all you have to do for this one is add the wholes 8 1/3

7. add the wholes 2 and 9 is 11 then multiply across 3 times 1 and 5 times 2 write the problem out and it shall now look like this 11 3/10
2 is 6
3 is 3
6 is 16 and 2/3
7 is 24 and 7/10

Which statement describes the solution to the equation a+5(2a−1)+3=11a−2 ?A.The equation has no solution.

b. The equation has exactly one solution, a=2 11 .

C. The equation has exactly one solution, a=−4 .

D. The equation has infinitely many solutions.

Answers

a+5(2a-1)+3=11a-2
First thing to do is distribute
5*2a=10a
5*-1=-5
a+10a-5=11a-2
Add the similar numbers together
11a-5=11a-2
Then subtract 
11a-11a
-5=-2
This equation has no solutions
If it had infinity solutions then both numbers on each side would equal the same, ex: -5=-5 
1st distribute

a + 10a - 5 + 3 = 11a -2

Then combine like terms

11a-2 = 11a-2

0=0

Infinite solutions
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