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2 years ago

Can anyone help me please.

Mathematics

1 answer:

Delvig [45]2 years ago

3 0

How am I suppose to help you if I can’t see the words. It’s too blurry.

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Please help me (picture)

kirill [66]

Answer:the answer is c

Step-by-step explanation:

5 0

2 years ago

(2x^3+6x-1)+(3x^2-7x)

sattari [20]

For this case we must simplify the following expression:

$(2x ^ 3 + 6x-1) + (3x ^ 2-7x)$

We eliminate the parentheses taking into account that:

$+ * + = +\\+ * - = -$

So, we have:

$2x ^ 3 + 6x-1 + 3x ^ 2-7x =$

We add similar terms taking into account that:

Different signs are subtracted and the sign of the major is placed:

$2x ^ 3 + 3x^2-x-1$

Answer:

$2x ^ 3 + 3x^2-x-1$

7 0

2 years ago

What is the answer for 9=Y=?

musickatia [10]

(5,4)

x=5

y=4

hope this helped

mark brainliest :)

you question did not make sense so i assumed this is what you meant and needed.

6 0

2 years ago

Solve the simultaneous equation y-2x+1=0 and 4x^2+3y^2-2xy=7

Lapatulllka [165]

The first equation is $y-2x+1=0$

$y=2x-1$ (Equation 1)

The second equation is $4x^{2}+3y^{2}-2xy=7$ (Equation 2)

Putting the value of x from equation 1 in equation 2.

we get,

$4x^{2}+3(2x-1)^{2}-2x(2x-1)=7$

$4x^{2}+3(4x^{2}+1-4x)-4x^{2}+2x=7$

by simplifying the given equation,

$12x^{2}-10x-4=0$

$6x^{2}-5x-2=0$

Using discriminant formula,

$D=b^{2}-4ac$

$D=25-4 \times 6 \times -2 = 73$

Now the formula for solution 'x' of quadratic equation is given by:

$x=\frac{-b+\sqrt{D}}{2a} and x=\frac{-b-\sqrt{D}}{2a}$

$x=\frac{5+\sqrt{73}}{12} and x=\frac{5-\sqrt{73}}{12}$

Hence, these are the required solutions.

8 0

2 years ago

What additional Information needed to prove the triangles are congruent by the SAS Postulate? Angle XWY cong angle ZWY; angle YX

marusya05 [52]

Answer:

WX = WZ

Step-by-step explanation:

Given

See attachment for triangles

Required

Additional information to prove the congruence of the triangles

Congruence by SAS means 1 angle and 2 sides of each triangles are equal.

The mark on angle W means that <XWY = <ZWY--- This represent the A in SAS

Both triangles share line WY.

So, WY = WY

Lastly, to complete the proof, lines WX must equal line WZ

6 0

1 year ago