Ask question

Ask question

All categories

3 years ago

12

Oh no my math its broken

1 answer:

Sidana [21]3 years ago

4 0

Answer:

a) 1 1/2

b) 3/8

c) 2 11/12

d) 1/2

Step-by-step explanation:

When one denominator is a multiple of the other, the least common denominator is the larger of the two. Expressing the fractions using the least common denominator can simplify the work a bit.

For adding and subtracting mixed numbers, I find it easiest to combine the integer parts and the fraction parts separately, then make an adjustment to the integer as may be required.

__

a) 5/6 +4/6 = 9/6 = 1 3/6 = 1 1/2

__

b) 7/8 -4/8 = 3/8

__

c) 1 2/3 +1 1/4 = (1 + 1) + (8/12 + 3/12) = 2 11/12

__

d) 2 1/3 - 1 5/6 = (2 -1) +(2/6 -5/6)

= 1 - 3/6 = 1 - 1/2 = 1/2

You might be interested in

Find the measure of the largest angle in ABC if a = 12, b = 8 and c = 13.

Papessa [141]

Answer:

$C=78.28^{\circ \:}$

Step-by-step explanation:

We are given a triangle

whose sides are

a=12

b=8

c=13

Since, c is largest among them

So, angle C must be largest angle

we can find angle C

we can use law of cosine formula

$cos(C)=\frac{a^2+b^2-c^2}{2ab}$

now, we can plug values

$cos(C)=\frac{12^2+8^2-13^2}{2\times 12\times 8}$

$cos(C)=\frac{13}{64}$

now, we can find angle

we get

$C=78.28^{\circ \:}$

5 0

3 years ago

Calculate the mean, median, mode, and midrange of this quiz distribution and explain whether the distribution is skewed to the l

Inessa [10]

Answer:

B

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Which expression is equivalent to 2√98⋅√2?<br> 4√98<br><br> 784<br><br> 14√2<br><br> 28

zhannawk [14.2K]

I am not 100% sure this is right but I believe its 28:)

3 0

3 years ago

Read 2 more answers

The function f(x) = -6x. The graph of g(x) is f(x)vertically stretched by a factor of 7 and reflected in the x-axis. What is the

Vera_Pavlovna [14]

we are given a function

$f(x)=-6x$

First translation:

The graph of function is vertically stretched by a factor of 7

Whenever we vertically stretch any function by 'a' units

so, we can write it as

$g(x)=a\times f(x)$

Here, it is vertically stretch by 7

so, we get

$g(x)=7\times -6x$

$g(x)=-42x$

Second translation:

Whenever we reflect any function about x-axis

we multiply y-value by -1

so, we can write it as

$g(x)=-f(x)$

Here , it is reflected in the x-axis

so, we can multiply by -1 to y-value

we get

$g(x)=-1\times -42x$

$g(x)=42x$ .............Answer

3 0

3 years ago

Read 2 more answers

Solve the system <br> 2x+y=-3 <br> -2y=6+4x

ANEK [815]

Answer:

0

Step-by-step explanation:

Write out the 2 equations:

2x + y = -3

-2y = 6+4x

-You then pick a variable that you want to solve for. I chose to solve for y because it would be a bit easier.

-2y = 6 + 4x

-Divide both sides by -2 to isolate the variable

(-2y) / -2 = (6 + 4x) / -2

-it comes out to y = -3 -2x

-Now that you have the y you can plug in the value into the second equation.

2x + y = -3 ---> 2x + (-3 -2x) = -3

This can be simplified to:

2x - 3 - 2x = -3

The 2x's cancel out because there is a +2x and a -2x. You are left with a

-3 = -3. If you add 3 to both sides of the equation you end up with 0 = 0, which can be simplified to just 0.

6 0

3 years ago