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IrinaK [193]
2 years ago
11

Simplify:(4x2 - 2x) - (-5x2 - 8x). yall dont gotta simplify this im just bored

Mathematics
1 answer:
jeka57 [31]2 years ago
4 0

Answer:

wsp?

Step-by-step explanation:

9x^2 + 6x

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Cual de estas graficas son funciones
valkas [14]
Los funciones Son Y 3,
7 0
3 years ago
Y=4x+1, 2x+y=37 substitution
VLD [36.1K]

Answer:

<em>x = 6 and y = 25 → (6, 25)</em>

Step-by-step explanation:

Substitute y = 4x + 1 to the equation 2x + y = 37:

2x + (4x + 1) = 37

(2x + 4x) + 1 = 37        <em>subtract 1 from both sides</em>

6x = 36           <em>divide both sides by 6</em>

x = 6

Pyt the value of x to the first equation:

y = 4(6) + 1

y = 24 + 1

y = 25

4 0
3 years ago
What is the slope of the line that passes through the points (2, 3) and (8, 6)?
vichka [17]

Answer:

1/2

Step-by-step explanation:

We have two points, we can use the slope formula

m = (y2-y1)/(x2-x1)

m = (6-3)/(8-2)

   = 3/6

   = 1/2

3 0
3 years ago
Read 2 more answers
Some birds were flying and met a bird on their way. The bird greeted them; hello hundred! They said we are not hundred, we need
Alex_Xolod [135]

Answer:

I'm not certain but it sounds as though there would be 150 birds flying .

Step-by-step explanation:

The first bird says we are not hundred, they need half their group population plus the second birds group population. So if we are trying to get 100 from two groups the easiest numbers would be to add 50 and 50. So if we have the second groups whole population be 50 birds then the first group's whole population must be 100. The first bird said half of us so that means half of 100 which would be 50. If you add half of the first groups population, which is 50(100/2=50), plus the second groups whole population (50), you get 100 birds. Which means if you add the first groups total population(100) with the second groups total population(50) you get 150 total birds flying.

4 0
3 years ago
How many triangles does a=6 b=10 A=33° create?
GaryK [48]

Answer:

2 triangles are possible.

Step-by-step explanation:

Given

a=6

b=10

\angleA=33°

To find:

Number of triangles possible ?

Solution:

First of all, let us use the <em>sine rule</em>:

As per Sine Rule:

\dfrac{a}{sinA}=\dfrac{b}{sinB}

And let us find the angle B.

\dfrac{6}{sin33}=\dfrac{10}{sinB}\\sinB = \dfrac{10}{6}\times sin33\\B =sin^{-1}(1.67 \times 0.545)\\B =sin^{-1}(0.9095) =65.44^\circ

This value is in the 1st quadrant i.e. acute angle.

One more value for B is possible in the 2nd quadrant i.e. obtuse angle which is: 180 - 65.44 = 114.56^\circ

For the value of \angle B = 65.44^\circ, let us find \angle C:

\angle A+\angle B+\angle C = 180^\circ\\\Rightarrow 33+65.44+\angle C = 180\\\Rightarrow \angle C = 180-98.44 = 81.56^\circ

Let us find side c using sine rule again:

\dfrac{6}{sin33}=\dfrac{c}{sin81.56^\circ}\\\Rightarrow c  = 11.02 \times sin81.56^\circ = 10.89

So, one possible triangle is:

a = 6, b = 10, c = 10.89

\angleA=33°, \angleA=65.44°, \angleC=81.56°

For the value of \angle B =114.56^\circ, let us find \angle C:

\angle A+\angle B+\angle C = 180^\circ\\\Rightarrow 33+114.56+\angle C = 180\\\Rightarrow \angle C = 180-147.56 = 32.44^\circ

Let us find side c using sine rule again:

\dfrac{6}{sin33}=\dfrac{c}{sin32.44^\circ}\\\Rightarrow c  = 11.02 \times sin32.44^\circ = 5.91

So, second possible triangle is:

a = 6, b = 10, c = 5.91

\angleA=33°, \angleA=114.56°, \angleC=32.44°

So, answer is : 2 triangles are possible.

8 0
3 years ago
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