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stealth61 [152]
3 years ago
14

Question 9 of 10

Mathematics
1 answer:
ioda3 years ago
6 0

Answer:

If she invests x an y, then we have

x+y = 144800

.10x + .18y = 20000

Now just do that as a matrix equation.

Step-by-step explanation:

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Write an equation of the line passing through the point (4,3) that is perpendicular to the line 4x-7x=9
timofeeve [1]

Answer:

The equation 4x-7x=9 simplifies into x=-3, which is a horizontal line. A perpendicular line would be vertical, and the equation for vertical lines is y=b, b being a constant. In this case on the point (4,3), y is 3, so the equation of the line is y=3.

7 0
3 years ago
A rectangular heptagon is measuring 26 mm and is divided by 7 congruent triangles. Each triangle has a height of 27 mm. What is
alina1380 [7]

Answer:

2,457 mm^2

Step-by-step explanation:

The dimensions of each of the triangles in terms of their bases and heights will be;

26 mm by 27 mm

Mathematically, the area of one of the triangles will be ;

1/2 * base * height

= 1/2 * 26 * 27 = 351 mm^2

So the area of the heptagon is the sum of the areas of all of the triangles

mathematically, that would be;

351 * 7 = 2,457 mm^2

8 0
3 years ago
Please help. I completely forgot what to do ahh. If anyone knows, please let me know :(
scoray [572]
Since they’re outside corresponding angles you can just set the 2 equations up to each other and solve for x.

5x + 20 = 3x + 60
-3x -20
2x = 40
x=2
7 0
3 years ago
On Saturday, Conner drives 62 1/4 miles each hour. If he travels for 4 hours, how many miles does he travel altogether? please h
Taya2010 [7]
You would multiply 62 1/4 and 4. Which you cant do that so you would have to make it into a inproper fraction so that will be 249/4 times 4/1 then you can multiply which your answer would be 996 /4 and then in simplest form would be 249/1= 249
8 0
4 years ago
Read 2 more answers
Find the exact value of sin A in simplest radical form.<br> B<br> 12<br> V63<br> с<br> 9<br> A
Rudik [331]

Answer:

sin A = \sqrt{7}/4

Step-by-step explanation:

sin A = opposite side/hypotenuse

sin A = \sqrt{63} / 12 = 3\sqrt{7} /12 = \sqrt{7} /4

7 0
3 years ago
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