All categories

3 years ago

What the last answer is

Mathematics

1 answer:

kipiarov [429]3 years ago

7 0

C, because the opposite would be + 2 and none of the ions have that charge

You might be interested in

If 3 students make up 10% of the class, how many students are there total in the class?

stealth61 [152]

Answer:

30 students

Step-by-step explanation:

3 students = 10% of the class.

x students = 90% of the class.

(If more, less divides. Let x be the subject. Since we know 10% of the class already, we have to find the remaining 90% that is 100% - 10% = 90%.)

x = 90%/ 10% × 3 students. ( the percentage signs cancel out and so do the zero's.)

x= 9/1 × 3 students ( 9/1 is the same as 9)

x= 27 students

(To find the total, you must add the 10% of the students to the remaining 90% of the students in the class.)

Total number of students in the class = 27 students + 3 students

= 30 students

7 0

3 years ago

Pls help

kap26 [50]

ANSWER

$d. 661.9 {yd}^{2}$

EXPLANATION

The area of the given triangle can be calculated using the formula,

$Area= \frac{1}{2} bc \sin(A)$

Where b=54yd , c=54yd,and A=27° is the included angle.

We plug in these values to get;

$Area= \frac{1}{2} \times 54 \times 54 \sin(27 \degree)$

$Area=661.9 {yd}^{2}$

The correct answer is D.

4 0

4 years ago

Find the slope of the graph and the unit rate

Lilit [14]

Answer:

For the 1st graph

Slope = $\frac{6}{10}$

Unit rate = $0.6$ mi/h

For the 2nd graph

Slope = $\frac{9}{4}$

Unit rate = $2.25$ mi/h=

Step-by-step explanation:

For the 1st graph

Slope is given as $\frac{Rise}{Run}$

Rise = $(6-0) = 6$

Run = $(10-0) = 10$

Therefore,

Slope = $\frac{6}{10}$

Unit rate = $\frac{6}{10}$

= $0.6$ mi/h

For the 2nd graph

Rise = $(9-0) = 6$

Run = $(4-0) = 10$

Therefore,

Slope = $\frac{9}{4}$

Unit rate = $\frac{9}{4}$

= $2.25$ mi/h

7 0

3 years ago

Có bao nhieu cách đổi một tờ tiền mệnh giá 200.000VNĐ thành các tờ tiền mệnh giá 50.000VNĐ,20.000VNĐ,10.000VNĐ

fredd [130]

Answer:

madc'dsv wr;lja''vr3'fbfsh'tht'rth

Step-by-step explanation:

6 0

3 years ago

Need Help. Will give brainiest for correct answer with reason/work.

Alexxandr [17]

Answer: y=1/x is the blue line and it goes straight up and down the y and x axis.

y=x^2 is the green line which is a thin "u" like shape. its going up the y axis.

y=\frac{x^{3}}{x^{2}-9} is the red line it goes up and down the y axis and diagonally across the middle of both axis'.

Step-by-step explanation: I went to desmos calculator and typed in your equation and it automatically gave me this graph. (See Picture for more details.)

6 0

3 years ago