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2 years ago

I need help ASAP with question 15 please!!

Mathematics

2 answers:

Vaselesa [24]2 years ago

7 0

Answer:

5 sessions

Step-by-step explanation:

2 1/2 = 5/2

No. of sessions = 5/2 x 2/1 = 5

abruzzese [7]2 years ago

4 0

There are two 1/2’s in an hour

4 in 2 hours + 0one more 1/2 makes 5 total

Answer: 5

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What expression equals 4m- 2+(-8m) A. -2(4m+1)+4m B. 2(2m-1)-8m C. None of the above

hoa [83]

Answer:

A &B

Step-by-step explanation:

We need first to remove brackets in our given expression : 4m-2-8m=-4m-2

Check A

Multiply by -2 all member of brackets:

$-8m-2+4m=-4m-2$

Check B

Multiply by 2 all member of brackets :

$4m-2-8m=-4m-2$

7 0

3 years ago

Read 2 more answers

Write an equation for each slope following the formula: y=mx+b

Mrrafil [7]

A) y = 5/3x - 9
B) y = -x + 3
C) y = -2/7x + 1
D) y = 5x + 4

4 0

3 years ago

If (x+2),3x and (4x+1)are in AP find the value of x

Gala2k [10]

Answer:

x is 3

Step-by-step explanation:

${ \bf{U _{2} - U _{1} = U _{3} -U _{2} }}$

${ \tt{3x - (x + 2) = (4x + 1) - 3x}} \\ { \tt{2x - 2 = x + 1}} \\ { \tt{x = 3}}$

8 0

3 years ago

Simplify: (2x – 3)2 4x2 + 9 4x2 – 12x + 9 4x2 – 12x + 6 4x2 – 6

Alexxandr [17]

Answer:

$4x^2-12x+9$

Step-by-step explanation:

we have

$(2x-3)^2$

we know that

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

In this problem

$a=2x\\b=3$

substitute in the formula

$(2x-3)^2=(2x)^2-2(2x)(3)+(3)^2$

$(2x-3)^2=4x^2-12x+9$

7 0

3 years ago

Read 2 more answers

A college surveys local businesses about the

Mrrafil [7]

Answer:

approximately 54.7% did not respond.

Step-by-step explanation:

Consider the provided information.

The college chooses 150 businesses at random from telephone listings.

Of these, 68 return the questionnaire.

That means 68 of them responded.

The number of people who did not respond are:

150-68=82

The number of people who did not respond are 82.

Now find the percentage of people who did not respond.

$\frac{82}{150}\times 100 \approx 54.7\%$

Hence, approximately 54.7% did not respond.

7 0

3 years ago