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love history [14]
3 years ago
8

Factor the trinomial: 2x^2+13x+21

Mathematics
1 answer:
tankabanditka [31]3 years ago
6 0

Answer:

(2x + 7) \times (x + 3)

Step-by-step explanation:

{2x}^{2}  + 13x + 21

{2x}^{2}  + 7x + 6x + 21

x \times (2x + 7) + 3(2x + 7)

= (2x + 7) \times (x +  3)

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Solve the following equation fro g:2(g-h)=b+4
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2g - 2h = b + 4
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g = (b + 4 + 2h) / 2
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3 years ago
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Nadya [2.5K]

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Step-by-step explanation:

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4 years ago
Find the equality represented by the graph?
Talja [164]

Answer:

-x+4y

Step-by-step explanation:

Given: graph

To find:the inequality

Solution:

Equation of a line passing through points (x_1,y_1),(x_2,y_2) is given by y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)

Take (x_1,y_1)=(0,3),(x_2,y_2)=(4,4)

So,equation of line is evaluated as follows:

y-3=\frac{4-3}{4-0}(x-0)\\ y-3=\frac{x}{4}\\ 4y-12=x\\-x+4y=12

As per the graph,inequality is -x+4y

Here, use sign < and not \leq as line in the graph is dotted that is points on the line are excluded.

4 0
3 years ago
3 - 3 × 6 + 2 = what?
REY [17]
The answer is -13! Hope this helps!
5 0
4 years ago
Please help pls pls help pls belp
Delvig [45]

Answer:

After 1 second, the ball will reach a maximum height of 16 feet

Step-by-step explanation:

The height of the ball after t seconds: h(t) = -16t^2 + 32t

The graph of this quadratic function is parabola which opens downwards. The vertex of a quadratic equation is the maximum or minimum point on the equation's parabola

t = -b/2a = -(32)/2(-16) = -32/-32 = 1 second

then

h(t) = -16(1)^2 + 32(1) = -16 + 32 = 16

After 1 second, the ball will reach a maximum height of 16 feet

8 0
2 years ago
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