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Marianna [84]
3 years ago
5

Solve for v 2v+18=16-4(v+7)

Mathematics
2 answers:
Rina8888 [55]3 years ago
7 0
2v+18=16-4(v+7). Take away the parenthesis.
2v+18=16-4v-28. Combine your like terms.
2v+18=-12-4v. Add 12
2v+30=-4v. Subtract 2v
30=-6v. Divide by -6
v=-5. This is your final answer.
Jlenok [28]3 years ago
4 0

Answer: v= -5

I hope I'm correct. Also double check. :)

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In a sample of 7500 new iphones, 18 were found to be defective. at this rate, how many defective iphones would be expected in a
viva [34]
In 7500 iPhones, 18 were found defective. 
18 of 7500 is 0.24%
0.24% of iPhones were defective.

Using the information above:
In a sample of 60000 new iPhones, 144 would be found defective.
144 of 60000 is 0.24%

Answer: 144 defective iPhones would be expected in a sample of 60,000.

Hope this helps! Good luck. :-)
8 0
3 years ago
2.
9966 [12]

Answer:

(b) -m, m + 3

Step-by-step explanation:

x² − 3x − m(m + 3) = 0

x² − 3x = m(m + 3)

x² − 3x + 9/4 = m(m + 3) + 9/4

(x − 3/2)² = m(m + 3) + 9/4

(x − 3/2)² = m² + 3m + 9/4

(x − 3/2)² = (m + 3/2)²

x − 3/2 = ±(m + 3/2)

x − 3/2 = m + 3/2, -m − 3/2

x = m + 3, -m

6 0
3 years ago
Graph the equation.<br> 2x + 3y = 12
lukranit [14]
Well, put x=0 then y=4
x=6 y=0
x=3 y=2
Now plot the graph :)
7 0
3 years ago
Read 2 more answers
If the area of the blue square is 144 units2 and the area of the pink square is 1225 units2, then the length of the hypotenuse i
navik [9.2K]

Answer: 37 units

Step-by-step explanation:

Blue=144units^2 This also works as the height of the triangle.

Pink=1225units^2 This also works as the base of the triangle.

Let's call pink ''a'', and blue ''b''. The side we're looking for ''c'' is the hypothenuse.

To find the values of a and b, use the area formula of a square and solve for a side. In this case, since we're going to need the squared values, this step can be omitted.

Formula: A=s^2

s=\sqrt[]{A}

Let's work with Blue.

s=\sqrt[]{144units^2} \\s=12units

Now Pink.

s=\sqrt[]{1225units^2}\\s=35units

So we have a triangle with a base of 35 units and a height of 12 units.

Now let's use the pythagoream's theorem to solve.

c^2=a^2+b^2\\c=\sqrt[]{a^2+b^2} \\c=\sqrt[]{(12units)^2+(35units)^2}\\c=\sqrt[]{144units^2+1225units^2}\\ c=\sqrt[]{1369units^2}\\ c=37units

7 0
3 years ago
What's the value? A.-20 B.-4 C.4 D.20
ale4655 [162]

Answer:

<h2>-4</h2>

Option B is the correct option.

Step-by-step explanation:

{(4 - 2)}^{3}  - 3 \times 4

Subtract the numbers

=  {(2)}^{3 } - 3 \times 4

Multiply the numbers

=  {(2)}^{3}  - 12

Evaluate the power

= 8 - 12

Calculate the difference

=  - 4

Hope this helps..

Best regards!!

4 0
3 years ago
Read 2 more answers
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