All categories

3 years ago

Expand 2x(3x - 5)again, please I'm struggling

Mathematics

2 answers:

Otrada [13]3 years ago

5 0

Answer:

6x^2-10x

Step-by-step explanation:

We will have to open the bracket

So let's solve the given question

2x(3x-5)

So let's start

6x^2-10x

Since any value is not given in replace of x it cannot be solved further... But in the case where a value is given,all we will have to do is to substitute and then solve further

Therefore we will have to leave our final answer to be 6x^2-10x

Studentka2010 [4]3 years ago

3 0

$\purple{here \: is \: ur \: answer}$

$2x(3x - 5) = 6x {}^{2} - 10x$

hey I am Indian, I want to talk plz inbox me

You might be interested in

Which word should replace the question mark (?) in the

artcher [175]

Answer:

speed I'm pretty sure sorry if its wrong

7 0

3 years ago

Read 2 more answers

Whoever checks my work and tell what I did wrong and the right answer will

gulaghasi [49]

Answer:

See below

Step-by-step explanation:

I believe that you only had to do letters F, H, and J. In that case, let's go over each one!

F: For isolating $d_{1}$ , we need to get rid of the 1/2 first. Let's multiply each side by 2:

$2*m = 2*\frac{1}{2}(d_{1}+ d_{2}) \\2m = d_{1}+ d_{2}$

After this, we just subtract $d_{2}$ from each side to get $d_{1}=2m- d_{2}$ . Dark Blue is correct! Let's now plug in those numbers below:

$d_{1}=2(10)- 13 = 20-13=7$

G: Let's isolate the vw^2 on one side by subtracting y from each side:

$vw^{2} +y-y=x-y\\vw^{2}=x-y$

Let's now divide each side by v, then put each side under a square root to get our final answer:

$\frac{vw^2}{v} = \frac{x-y}{v}\\ w^2 = \frac{x-y}{v}\\\sqrt{w^2} = \sqrt{\frac{x-y}{v}} \\w=\sqrt{\frac{x-y}{v}}$

Orange is correct! Again, let's solve the problem underneath:

w= $w=\sqrt{\frac{38-(-7)}{5}} = \sqrt{\frac{38+7}{5}} = \sqrt{\frac{45}{5}}=\sqrt{9}=3$

H: This one has some stuff that we haven't worked with quite yet (like terms), but our approach is the same: isolate c on one side of the equation.

$2a-2a+3c=17a-2a+21\\3c = 15a+21\\\frac{3c}{3} = \frac{15a+21}{3}\\c = \frac{15a}{3}+ \frac{21}{3} \\c = 5a+7$

Purple is correct! Let's solve the problem:

$c = 5(\frac{16}{5})+7 = 16+7 = 23$

7 0

3 years ago

N÷4=1225 what is the answer?

Vilka [71]

If you are looking for the value of N, multiply both sides by 4. The value of N is 4900.

7 0

3 years ago

Help would be appreciated :)

RoseWind [281]

Your 3rd option, or (-6,-3,0,3,6) would be the answer

3 0

3 years ago

Write the Cubic Function with the following

OlgaM077 [116]

Answer:

Answer:

y = -5(x - 7)^3 - 1

Step-by-step explanation:

You kind of just plug in the numbers.

a vertical stretch by a factor of 5: y = 5x^3

a reflection across the x-axis: y = -5x^3

a vertical translation 1 unit down: -5x^3 - 1

a horizontal translation 7 units right: -5(x - 7)^3 -1

Step-by-step explanation:

8 0

2 years ago

Expand 2x(3x - 5)again, please I'm struggling ​

Expand 2x(3x - 5)again, please I'm struggling