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3 years ago

What is the sum of r? - 3x + 7 and 3x2 + 5x - 9?

Mathematics

1 answer:

sergij07 [2.7K]3 years ago

5 0

Answer:

3 x 2 + 2 x − 2

Step-by-step explanation:

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What is the relationship between 1 and 0.1 ? Eplain your reasoning

DochEvi [55]

Answer:

they both have a 1

Step-by-step explanation:

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3 years ago

Equations with variables on both sides : 17-2p = 2p+5+2p

BlackZzzverrR [31]

Answer:

p = 2

Step-by-step explanation:

17 - 2p = 2p + 5 + 2p

- 2p - 2p - 2p = 5 - 17

- 6p = - 12

p = -12 / -6

p = 2

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3 years ago

What is 5 times the quotient of 3 and 5?

jeka57 [31]

Answer: 3

Step-by-step explanation:

5 X 3/5 = 3

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3 years ago

Solve the following pair of simultaneous equation using elimination method.

sp2606 [1]

Answer:

x = 1 and y = −2

Step-by-step explanation:

Rewrite equations:

x + 2y = −3

3x − 2y = 7

Step 1: Solve x+2y=−3 for x:

x + 2y = −3

x + 2y + −2y = −3 + −2y (Add -2y to both sides)

x = −2y − 3

Step 2: Substitute −2y − 3 for x in 3x − 2y = 7:

3x − 2y = 7

3(−2y − 3) − 2y = 7

−8y − 9 = 7 (Simplify both sides of the equation)

−8y − 9 + 9 = 7 + 9 (Add 9 to both sides)

−8y = 16

−8y/−8 = 16/−8 (Divide both sides by -8)

y = −2

Step 3: Substitute −2 for y in x = −2y − 3:

x = −2y − 3

x = (−2)(−2) − 3

x = 1 (Simplify both sides of the equation)

3 0

3 years ago

In the graph below, the area above f(x) is shaded and labeled A, the area below g(x) is shaded and labeled B, and the area where

drek231 [11]

Answer: OPTION C.

Step-by-step explanation:

The equation of the line in Slope-Intercept form is:

$y=mx+b$

Where "m" is the slope and "b" is the y-intercept.

Notice that the line of f(x) is dashed. This means that the symbol of the inequality must be or $>$ .

Since the shaded region A is above the line, the symbol is $>$

Observe that its y-intercept is:

$b=3$

The line of g(x) is solid. This means that the symbol of the inequality must be $\leq$ or $\geq$ .

Since the shaded region B is below the line, the symbol is $\leq$ .

Observe that its y-intercept is:

$b=-2$ .

Based on this, we can conclude that the graph represents the following System of Inequalities:

$\left \{ {{y\leq 2x -2} \atop {y >-x + 3}} \right.$

8 0

3 years ago