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zheka24 [161]
3 years ago
10

Please help me explain this correctly..​

Mathematics
1 answer:
marta [7]3 years ago
6 0

Answer:

Yes, the ordered pair is correct.

Explanation:

You can check the if the ordered pair by substituting the values into the equation. If you substitute the ordered pair (1, 3), then you can make sure the ordered pair is correct. The equation with the substitution will be 3 = 1 + 2, which results in the true equation 3 = 3, therefore the ordered pair is correct.

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In a survey of 400 seniors, x percent said that they plan on majoring in physics. One university has used this data to estimate
azamat

Answer:

2 percent

Step-by-step explanation:

We can use two separate fractions, one representing the amount of physics majors expected and the amount of seniors expected in physics majors by the university.

\frac{400x}{66} = \frac{400}{3600}

Now cross multiply.

\frac{66*400}{400x * 3600}

x will be removed.

\frac{26400}{1320000}

Simplifying this fraction will get you \frac{1}{50}, which in percentage form, will be 2 percent.

8 0
2 years ago
What is the range of the function on the graph?
SIZIF [17.4K]

Answer: All real numbers less than or equal to 3.

Explanation: I took a test with this question and got it right.

3 0
3 years ago
Find the sum of the arithmetic series given ai = 45, an = 85, and n = 5.
seraphim [82]

Answer:

C. 325.

Step-by-step explanation:

The last term a5 = 85

a1 = 45

Sum of n terms = n/2 (a1 + l)

So here we have n = 5, a1 = 45 and the last term l = 85

= (5/2)(45 + 85)

= 5/2 * 130

= 325.

5 0
3 years ago
Rectangle ABCD is graphed in the coordinate plane. The following are the vertices of the rectangle:
Tamiku [17]

Answer: 16 units

Step-by-step explanation:

Point A and Point B are 5 units apart on the x-axis.

Since this is a rectangle, the opposite side is equivalent.

Point A and Point C are 3 units apart on the y-axis.

Same thing applies for these points.

5+5+3+3=16 units

7 0
3 years ago
1 point
V125BC [204]

Answer:

10. answer= 3

Q11 answer = -3

Step-by-step explanation:

Q10.

-3x+9-x+9=3x-3

or, -4x+18=3x-3

or, 3x+4x=18+3

or, 7x=21

or, x=3 <u>answer</u>

<u>Q</u><u>1</u><u>1</u><u>.</u>

1.8-3.7x= -4.2x+0.3

or, 4.2x-3.7x=0.3-1.8

or, 0.5x= -1.5

or, x=-3 <u>answer</u>

5 0
3 years ago
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