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Mkey [24]
3 years ago
15

Simplify -2(v+5) +5(4v-2)

Mathematics
1 answer:
kodGreya [7K]3 years ago
3 0

Answer:

18v - 20

Step-by-step explanation:

-2v - 10 + 20v - 10

20v - 2v -10 - 10

18v -20

18v - 20

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Lily has walked 2 miles. Her goal is to 6 miles. Lily plans to reach her goal by walking 3 miles each hour h for the rest of her
suter [353]

Step-by-step explanation:

if she did that she would have walked 36 miles multipy all of the numbers and theres ur answer i think i am so tired so if its wrong i am sooo sorry i havent slept in two days.... hope u have a better day than mine

4 0
3 years ago
Find z1z2 if z1 = 2/5(cos63° + isin63°) and z2 = 10/3(cos117° + isin117°).
Airida [17]

Answer:

-10/3 is the answer

Step-by-step explanation:

Given are two complex numbers as

z1=\frac{2}{5} (cos63  + isin63)\\z2=\frac{10}{3} (cos 117 + isin117})

Recall Demoivre theorem as

(cosA+isinA)(cos A+isin B) = cos(A+B)+isin(A+B)

Hence here we have sum of angles  as

A+B = 63+117 =180

z1z2=\frac{2}{5} \frac{10}{3} (cos180+isin180)

=\frac{-10}{3}

Since sin180=0 and cos 180=-1

7 0
3 years ago
a rectangular parking lot has length that is greater than the width the area of the parking lot is 160 square yards find the len
MissTica
Let 'w' represent the width of the parking lot, then 'w+6' represents its length



area = width * length



160 = w * (w+6)

solving for 'w' we have a positive value of w=10



10+6=16



the width of the parking lot is 10 yards, the length of the parking lot is 16 yards
3 0
3 years ago
Identify the domain of the following rational expression:
Zinaida [17]

The domain for the rational expression as given in the task content is; All real numbers except -5.

<h3>Domain of Rational functions</h3>

The domain of a rational function such as that given in the task content includes all possible values of the variable except that which renders the expression undefined.

On this note, the expression is undefined when, 3x + 15 = 0.

Hence, the domain is All real numbers except -5.

Read more on rational functions;

brainly.com/question/13763081

4 0
2 years ago
The correlation coefficient for blood pressure and amount of vegetables eaten in a group of people is −0.7. Analyze the followin
harina [27]
<span>Yes; eating vegetables reduces blood pressure, so the opposite is also true

That is your correct answer
</span>
3 0
3 years ago
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