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BabaBlast [244]
3 years ago
8

What is the sum of the two vectors (-1,-4) and (3,5)

Mathematics
2 answers:
o-na [289]3 years ago
5 0

Answer:

Step-by-step explanation:

a(-1, -4)\\b(3, 5)\\a + b(2, 1)

harina [27]3 years ago
4 0

Answer:

(2,1)

Step-by-step explanation:

Just took the quiz

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12. Find the measure of each interior angle of triangle QRT.
Veseljchak [2.6K]

Answer:

\angle QRT=125.6\°

\angle RTQ=6.4\°

\angle TQR=48\°

Step-by-step explanation:

It is important to remember that, by definition, the measure of an exterior angle of a triangle is equal to the sum of the measures of the two non-adjacent interior angles.

In this case we can idenfity that the angle 17x is an exterior angle of the triangle QRT. Then:

17x=\angle RTQ+\angle TQR

Where:

\angle RTQ=2x\\\\\angle TQR=48\°

Substituting values and solving for "x", we get:

17x=2x+48\\\\17x-2x=48\\\\15x=48\\\\x=3.2

Then:

17x=17(3.2)=54.4\°\\\\\\\angle RTQ=2(3.2)=6.4\°

The sum of the interior angles of a triangle is 180°, therefore:

\angle QRT+\angle RTQ+\angle TQR=180

Solving for \angle QRT, we get:

\angle QRT=180-48-6.4=125.6\°

8 0
3 years ago
Which expression is equivalent to 5a/4-b/8
earnstyle [38]

Answer:

(10a-b)/8

Step-by-step explanation:

LCM(4,8) is 8

Rewrite each fraction using common denominator = 8

5a/4 is 10a/8

10a/8 - b/8 = (10a-b)/8

6 0
3 years ago
A. The ratio of the number of boys
s344n2d4d5 [400]

Answer:

the girls = 18

so 18÷3=6

6×4=24

24 boys

6 0
2 years ago
X 1/2 rational exponent
Lesechka [4]

Answer:

Step-by-step explanation:

Ok

7 0
2 years ago
If a triangle has an area of 24 square cm what is its base if the height is 3 cm
kolezko [41]

Answer:

b=16cm .......................

3 0
3 years ago
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