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3 years ago

Fill in the blanks-

Mathematics

1 answer:

matrenka [14]3 years ago

8 0

unlike charges attract like charges repel

Atoms have positive protons, no charge neutrons and negative electrons

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10. Please help. What is the length of ED⎯⎯⎯⎯⎯⎯⎯⎯?

DedPeter [7]

Answer:

The correct value is 12.

7 0

3 years ago

Which equation BEST matches the model? A) 7/9 x 6/8 = 36 B) 7/9 x 3/4 = 21/36 C) 4 x 9 = 36 D) None of the above

patriot [66]

Whats the model because 7/9 × 3/4= 7/12 which also equals to 21/36
as 7/12 is the simplified version of 21/36 but then for c 4×9 =36 so I'm a bit confused my self but here's a bit of a start

7 0

3 years ago

S 8. a ES a) There are 40 students in a class and 16 of them are girls. (i) Find the ratio of the girls and the total number of

umka21 [38]

Answer:

The ratio for the boys is 24:40 and the girls is 16:40 so the girls and boys is 16:24

Step-by-step explanation:

7 0

2 years ago

If MNK is a height KD in the triangle, then

matrenka [14]

Answer:

then KD would be equal?

Step-by-step explanation:

not sure, but try that

6 0

3 years ago

A restaurant has a main location and a traveling food truck. The first matrix A shows the number of managers and associates empl

denis-greek [22]

Answer:

A*B= $\left[\begin{array}{cc}705&80\\121&14 \end{array}\right]$

Step-by-step explanation:

Given A= $\left[\begin{array}{cc}5&25\\1&4\end{array}\right] \left[\begin{array}{cc}41&6\\20&2\end{array}\right]$ = B

Finding A*B means multiplying the first row with the first column and first row with the second column would give the first row elements. The second ro0w elements are obtained by multiplying the second row with the 1st column and second row with the second column.

so A*B= $\left[\begin{array}{cc}5*41+ 25*20&5*6 + 25*2\\ 1*41+4*20 & 1*6+ 4*2\end{array}\right]$

Now multiply and add the separate elements of the matrix A*B=

$\left[\begin{array}{cc}205+500&30+50\\41+80&6+8\end{array}\right]$

A*B= $\left[\begin{array}{cc}705&80\\121&14 \end{array}\right]$

b. The 1st element of the 1st row shows the salaries of the managers and 2nd element of the 1st row the salaries of associates at the restaurant . The second row 1 st element shows the benefits of the managers and 2nd element the benefits of the associates at the food truck.

c. The total cost of salaries for all employees (managers and associates) at the restaurant = 705 + 80 = 785

Total cost of benefits for all employees at the food truck= 121 + 14= 135

6 0

3 years ago