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boyakko [2]
3 years ago
13

Hey! please help posted picture of question

Mathematics
2 answers:
Ainat [17]3 years ago
7 0
The fraction shows 2/11 pieces were left.

This means, the birthday cake was divided into 11 pieces, 9 of them were eaten and 2 pieces were not eaten.

To ensure this we can add the fraction 2/11 (pieces left) and 9/11(pieces eaten). Since this results in 1 i.e. a whole cake, total pieces of the cake were 11

Thus the answer to this question is 2. 
lara31 [8.8K]3 years ago
3 0
The answer is D) 2

Since it is given that there have been 9 slices eaten, we can assume that whatever amount of slices were cut in total will have 9 reduced from the amount. With the fraction 2/11, we know 11-9=2, which fits perfectly into this description so 2 slices have not been eaten.
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Using Cramer’s rule, what is the value of x in the solution to the system of linear equations below?
Aloiza [94]

9514 1404 393

Answer:

  d  2

Step-by-step explanation:

The system of equations can be written in augmented matrix form as ...

  \displaystyle\left[\begin{array}{cc|c}-\frac{1}{2}&3&-4\\-1&-1&-1\end{array}\right]

The value of x found by Cramer's rule is the ratio of two determinants. The numerator is the coefficient matrix with the x-column replaced by the constant column. The denominator is the coefficient matrix.

  \displaystyle x=\frac{\left|\begin{array}{cc}-4&3\\-1&-1\end{array}\right| }{\left|\begin{array}{cc}-\frac{1}{2}&3\\-1&-1\end{array}\right|}=\frac{(-4)(-1)-(-1)(3)}{(-\frac{1}{2})(-1)-(-1)(3)}=\frac{4+3}{\frac{1}{2}+3}\\\\\boxed{x=2}

6 0
3 years ago
PLEASE HELP WILL MARK BRAINLIEST Graph y>-1/2x+3
grigory [225]

Step 1) Graph the line y = (-1/2)x + 3. This line goes through (0,3) as its y intercept and it also goes through (2,2). You can start at (0,3) and move down one unit and to the right two units to arrive at (2,2). The slope of the boundary line is -1/2, meaning that the rise is -1 and the run is 2. A negative rise indicates we go down instead of up.

Step 2) Make the line in step 1 to be a dashed line. This is because there is no "or equal to" as part of the inequality sign. The dashed line says that points on this line are not part of the solution set.

Step 3) Shade above the dashed line. We shade above due to the "greater than" sign. Points above the dashed line are in the shaded solution set. An alternative is to test a point like (x,y) = (0,0) and you'll find y > (-1/2)x+3 turn into 0 > 3 which is a false statement; therefore, (0,0) is not in the solution set. This is expected as (0,0) is below the dashed line.

The final result is what you see in the attached image below. Points A and B help set up the dashed boundary line. Point C is the test point mentioned above which is not in the blue shaded solution region.

Note: the points shown in the diagram are optional when it comes to showing the final answer to your teacher. All you need really is the boundary line and its proper shaded region.

7 0
3 years ago
When dividing fractions, the divisor must be inverted then multiplied with the other fraction?
Lana71 [14]
Yes. That statement is true.

For example in : (1/2) divided by (3/4), you would invert 3/4 to make 4/3 and change the divide symbol to the multiply symbol. Becoming:

(1/2) multiplied by (4/3)<em> = </em><em>(1/2) divided by (3/4) = 0.66r</em>

5 0
3 years ago
Perimeter question math
Aneli [31]
Perimeter is the sum of all sides in the figure. Here, all six sides are equal in length so it would be:

p = 6 * side
p = 6 * 3.9
p = 23.4 cm

In short, Your Answer would be: 23.4 cm

Hope this helps!
5 0
3 years ago
Read 2 more answers
Venn diagrams: unions, intersections, and complements<br><br><br> Attached is the photo references
ohaa [14]

Answer:

4, 8

Step-by-step explanation:

D iswholly part of B. so B intersect D is D

3 0
3 years ago
Read 2 more answers
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