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Vinil7 [7]
3 years ago
9

Need help with this question

Mathematics
2 answers:
dybincka [34]3 years ago
7 0
Download a math calculator or math awnsers
MArishka [77]3 years ago
6 0

the first is 1 and the second is -4

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What is the value of ▲ in the equation shown?<br><br> 8 x 4 = ( ▲ x 7) - (▲ x 3)<br><br> = _____
aleksandrvk [35]
The answer is 8 because
 8 times 4 = 32
 8 times 7 =56
 8 times 3 =24
 56 minus 24 = 32
5 0
3 years ago
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A train travels at a speed of 90 miles per hour. How far will it have traveled<br> in 3 hour
DiKsa [7]
270 miles be 90+90+90 equals 270 and thats the answer
5 0
3 years ago
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Find the equation of the line that passes through the point of intersection of x + 2y = 9 and 4x -2y = -4 and the point of inter
Rudik [331]

Answer:

y=-6x+10

Step-by-step explanation:

The point of intersection of

x+2y=9...eqn1


and


4x-2y=-4...eqn2

is the solution of the two equations.


We add equation (1) and equation(2) to get,

x+4x+2y-2y=9+-4


\Rightarrow 5x=5


\Rightarrow x=1

We put x=1 into equation (1) to get,

1+2y=9

\Rightarrow 2y=9-1

\Rightarrow 2y=8

\Rightarrow y=4


Therefore the line passes through the point, (1,4).


The line also passes through the point of intersection of

3x-4y=14...eqn(3)

and

3x+7y=-8...eqn(4)

We subtract equation (3) from equation (4) to obtain,

3x-3x+7y--4y=-8-14


\Rightarrow 11y=-22

\Rightarrow y=-2


We substitute this value into equation (4) to get,

3x+7(-2)=-8


3x-14=-8


3x=-8+14


3x=6

x=2

The line also passes through

(2,-2)



The slope of the line is

slope=\frac{4--2}{1-2} =\frac{6}{-1}=-6


The equation of the line is

y+2=-6(x-2)

y+2=-6x+12


y=-6x+10 is the required equation





4 0
3 years ago
HELPPP DOES ANYONE KNOW THE ANSWER???
IRISSAK [1]

Answer:

B

Step-by-step explanation:

solve equation.

5 0
2 years ago
In the diagram AB=AD and
hammer [34]

Answer:

AC ≅ AE

Step-by-step explanation:

According to the SAS congruence theorem, if two triangles have 2 corresponding sides that are equal, and also have one included corresponding angle that are equal to each other in both triangles, both triangles are regarded as congruent.

Given ∆ABC and ∆ADC in the question above, we are told that segment AB ≅ AD, and also <BAC ≅ <DAC, the additional information that is necessary to prove that ∆ABC and ∆ADC are congruent, according to the SAS theorem, is segment AC ≅ segment AE.

This will satisfy the requirements of the SAS theorem for considering 2 triangles to be equal or congruent.

6 0
3 years ago
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