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marta [7]
4 years ago
6

If there are 50 questions in a test, and each one is the same number of points, and one person gets 39 out of 50, what is his sc

ore?
Mathematics
1 answer:
aev [14]4 years ago
3 0
The answer is39/50 * 100=78
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A line is represented by the equation y = x + 2. Suppose the slope of the line was doubled and the value of the y-intercept was
Komok [63]

Answer:

y = 2x + 1

Step-by-step explanation:

slope is the coefficient of the 'x' term, in this case 1

doubling 1 gives you 2

y-intercept is 2, dividing this by 2 gives you 1

5 0
3 years ago
Solve for x: -5 < 8x + 11 < 19
vladimir1956 [14]

Answer:

-2<x<1

Step-by-step explanation:

-5 < 8x + 11 < 19

Subtract 11 from all sides

-5-11 < 8x + 11-11 < 19-11

-16 < 8x<8

Divide by 8

-16/8 < 8x/8 <8/8

-2<x<1

6 0
3 years ago
How to classify this conic ecwation 4x^2+9y^2-54y-63=0
MArishka [77]
This looks like an ellipse.
Complete the square for y: 9(y²-6y-7)=9(y²-6y+9-9-7)=9((y-3)²-16).
Rewrite the equation:
4x²+9(y-3)²-144=0; 4x²/144+9(y-3)²/144=1; x²/36+(y-3)²/16=1.
Standard equation of an ellipse is (x-h)²/a²+(y-k)²/b²=1, where (h,k) is the origin or centre.
This is the equation of an ellipse with centre (0,3), a=6 and b=4 (semimajor and semiminor axes).
6 0
4 years ago
What is 13/19 as a decimal rounded to the nearest hundredth
STatiana [176]

Answer:

0.68421052

then rounded its 0.68

Step-by-step explanation:

Find the number in the hundredth place  

8

and look one place to the right for the rounding digit  

4

. Round up if this number is greater than or equal to  

5

and round down if it is less than  

5

.

0.68

can  iplease lz have brainliest :0

7 0
3 years ago
Read 2 more answers
the coordinate plate shows the location of vijays house. the location of huang's house is a reflection of the location of vijays
harina [27]

Answer:

The location of Huang's house is (5,2)

Step-by-step explanation

We can see in the picture that

Elm street can be defines as x-axis

Oak street cab be defines as y-axis

A reflection can be defined as flipping an object over the line of reflection. The original object is called pre-image, and the newly formed reflection is called image. Both the object and reflection have the same size and shape, and same distance from the line of reflection.

E.g when reflecting an object across x-axis , the x-coordinate of the object remains the same in the reflection, but the sign of y-coordinate is changed.

Similarly, when reflecting an object across y-axis, y-coordinate of the object remains the same in reflection, but the sign of x-coordinate is changes.

In the question, the location of Vijay's house is given by coordinates (-5,2)

As we can consider Oak street as y-axis, and we have to reflect the house across Oak street, then the reflection will have same y-coordinates, but the sign of x coordinate will change.

Which means the location of Huang's house is (5,2)

4 0
3 years ago
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