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3 years ago

HELP 100 POINTS PLEASE GET IT RIGHT

Mathematics

2 answers:

Nat2105 [25]3 years ago

5 0

Answer:

Step-by-step explanation:

1) ( $2x^{2}$ - 9x + 4) + ( $3x^{2}$ + 2x - 3)

= $2x^{2}$ - 9x + 4 + $3x^{2}$ + 2x - 3

= $5x^{2}$ - 7x - 1

2) $x^{2}$ - 4x - 3 + $x^{2}$ -2x - 3

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

astra-53 [7]3 years ago

4 0

Answer:

1.) $5x^{2} -7x+1$

2.) $2(x^{2} -3x-3$

Step-by-step explanation:

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1.75 divided by 0.05

ladessa [460]

1.75 divided by 0.05 is 35. The answer is 35

4 0

4 years ago

Trig help ..............

Vilka [71]

SinA = 3/5
cosA = 4/5

cosB = 3/5
sinB = 4/5

sin(A+B) = sinAcosB + cosAsinB

= (3/5)(3/5) + (4/5)(4/5)
= 9/25 + 16/25
=(9+16)/25
=25/25
=1

therefore, the answer is B

5 0

3 years ago

What value of X would assure parallelogram ABCD is a rhombus give an angle BRC=7X +6

leva [86]

Answer:

Cheater.

Step-by-step explanation:

this is your math teacher. I am very disappointed, never go on this website again.

4 0

3 years ago

Factor x3 + 2x2 + x completely. a. (x+1)^2 b. x(x+1)^2 c. x(x+1)^2

enot [183]

Option B

ANSWER:

The factors of $x^{3}+2 x^{2}+x$ is $x(x+1)^{2}$

SOLUTION:

Given, cubic expression is $x^{3}+2 x^{2}+x$

Now, we have to find the factors of above equation.

To factorize the given equation, follow the below steps:

$\mathrm{x}^{3}+2 \mathrm{x}^{2}+\mathrm{x}$

Since x is common in every term of expression, we can take it as common

$x\left(x^{2}+2 x+1\right)$

“2x” can be rewritten as “x + x”, the above equation becomes,

$x\left(x^{2}+x+x+1\right)$

Taking the common terms out of bracket. we get

x(x (x + 1) + 1 (x + 1))

Taking (x + 1) as common., we get

x ((x + 1)(x + 1))

$x(x+1)^{2}$

Hence, the second option b is correct.

7 0

3 years ago

angle U and angle W are vertical angles. If measurement angle u = 6x+11 and measurement angle W = 10x-9, find measurement angle

IgorC [24]

The measure of angle U will be equal to the measure of angle W.

Because W is pronounced "double u", W = 2 * U.

Therefore U = W and U = 2 * W, so both U and W = 0.

Just kidding.

The correct answer is the smallest prime number greater than 40.

8 0

3 years ago