All categories

2 years ago

2(-6)2 – 3(8) + 4(-6)2

Mathematics

2 answers:

yaroslaw [1]2 years ago

5 0

The answer is the following :-

-96

Llana [10]2 years ago

4 0

Answer:

-96

Hope this helps ya out!

You might be interested in

PLS HELP ME!!! I really need help with this!!! Pls give me an honest answer my teacher is going to grade this.

liberstina [14]

Total length = 111.6 metres
(12.3x7) + 15 + 10.5 = total length

7 0

3 years ago

What scale factor was applied to the first rectangle to get the resulting image? The answer is a decimal. The big rectangle is 2

Juli2301 [7.4K]

Scale factor is always (new/original)

so it depends which rectangle came first. if it started as large and was dilated to the smaller one, then the ratio is (.5/2.5) which simplifies to 1/5 or 0.2.

3 0

3 years ago

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

Pls help ASAP! I’ll give BRAINLIEST

Alexeev081 [22]

I think the second one does

4 0

3 years ago

What is the height of a trapezoid with a area of 79.2 and bases 4.2 and 9

julsineya [31]

The answer to this problem is 12. If you want me to write it out I can

8 0

3 years ago

Read 2 more answers