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2 years ago

Identify the solution of the system of equation 2x+4=0 Y=5-3x

2 answers:

7 0

$\left \{ {{2x+4=0} \atop {y=5-3x}} \right. \\\\From\ first\ equation:\\2x+4=0\\2x=-4\ \ \ \ |:2\\x=-2\\\\y=5-3\cdot(-2)\\y=5+6=11$

nexus9112 [7]2 years ago

5 0

$2x+4=0\\
y=5-3x\\\\
2x=-4\\
y=5-3x\\\\
x=-2\\
y=5-3x\\\\
y=5-3\cdot(-2)\\
y=5+6\\
y=11\\\\
x=-2,y=11$

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lozanna [386]

The expression would be m-2

3 0

3 years ago

Pls help. Can’t do this.

Anna [14]

Step-by-step explanation:

The equation of line A:

y-1=0, 5x-3

y=0, 5x-2. Hence its gradient is 0,5

For line B, its you intercept is -8, so y=mx-8.

When x = -4, y=-4m -8 =0 as shown in the graph. This means that m = -2.

Since |-2| > |0, 5|, line B is steeper than line A.

6 0

3 years ago

In this truss bridge, AAOB ABDC. AO=5 meters, BD=10 meters, AB=5 meters. What is the length of BC? A. 5 m B. 8 m C. 10 m D. 15 m

Olenka [21]

Consider $\Delta AOB\cong \Delta BDC$ .

Given:

$\Delta AOB\cong \Delta BDC, AO=5\ m,BD=10\ m, AB=5\ m.$

To find:

The length of BC.

Solution:

We have,

$\Delta AOB\cong \Delta BDC$

We know that the corresponding parts of congruent triangles are congruent (CPCTC).

$AB=BC$ (CPCTC)

$5\ m=BC$

The length of BC is 5 m. Therefore, the correct option is A.

5 0

2 years ago

72x2 + 39x + 207 = 0

JulsSmile [24]

The answer is x=-9

Hope this helped:)

6 0

2 years ago

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olga_2 [115]

Answer:

20th: 100 nth: 5

Step-by-step explanation:

the table is multiplying by 5

so 5 × 20 = 100

8 0

3 years ago