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ziro4ka [17]
2 years ago
13

André solves the following system of equations by elimination.

Mathematics
2 answers:
Vaselesa [24]2 years ago
8 0
Although the question is incomplete, I have seen it before.

The equations are:
3a + 6b = 12
-3a + 6b = -12

Adding the equations, we get:

12b = 0
And b = 0
g100num [7]2 years ago
3 0

This is correct on e2020

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2 1/2 + (-1/3)<br> PLz, help me with this question.
dem82 [27]

Answer:

2 1/6

Step-by-step explanation:

7 0
3 years ago
Find z of the diagonal triangle. <br> Also, complete b.
STatiana [176]

Answer:

x = 30.91 cm , y = 29,86 cm and z = 39.30 cm.

Total area of wood = 2942.54 cm^2.

Step-by-step explanation:

sin 15 =8/x

x = 8 / sin 15

x = 30.91 cm.

and

tan 15 = 8/y

y = 8 / tan 15

= 29.86 cm.

The value of z can be found using the Pythagoras theorem:

50^2 = x^2 + z^2

z^2 =  20^2 - x^2 = 50^2 - 30.91^2

z^2 = 1554.57

z = √1554.57

=  39.30 cm.

b.  The area consists of 3 rectangles :- 1. sides x and z  2. sides z and 8 and the other has sides z and y. Also 2 triangles of height 8 and base length y cm.

Total area = 30.91  * 39.30 + 8 * 39.30 + 29.86 * 39.30 + 2 * 0.5 * 8 * 29.86

=  2942.54 cm^2.

3 0
3 years ago
Which of these shapes is congruent to given shape ?
BlackZzzverrR [31]

Answer:

Step-by-step explanation:

shape D

4 0
3 years ago
Read 2 more answers
Jose purchased 5.5 feet of rope to hang a planter on the back porch the planter required a set of 3 ropes measuring 18 inches ea
Licemer1 [7]
C is the best choice
3 0
2 years ago
What is the value of 8 in 293,581
Lunna [17]
Is it a decimal ? or a whole number ?

if it is a decimal , the value is 8 tenths

if it’s a whole number , the value is 8 tens

hope this helped
7 0
2 years ago
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