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2 years ago

Solve for x and y: y=2+7x −2x+6y=172 Select one:

Mathematics

1 answer:

Ymorist [56]2 years ago

5 0

It is pretty easy to eliminate the wrong answers by trying the answers in the equations.

a. 7 times 30 is way more than 4

c. 6 times 226 is way more than 172, even after subtracting 64

d. 7 times -74 is way less than 4

The appropriate choice is

... b. x=4, y=30

You can check it with your graphing calculator.

_____

Since you have an expression for y, you can substitute that into the second equation:

... -2x + 6(2+7x) = 172 . . . . substitute for y

... 40x = 160 . . . . . . . . . . . . eliminate parentheses, subtract 12, collect terms

... x = 4 . . . . . . this is sufficient to help you locate the correct answer

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Given: m∠EYL=72°<br> Find: mEHL , mLVE

White raven [17]

Answer:

Part 1) The measure of arc EHL is $108\°$

Part 2) The measure of angle LVE is $54\°$

Step-by-step explanation:

step 1

Let

x-----> the measure of arc EHL

y----> the measure of arc EVL

we know that

The measurement of the outer angle is the semi-difference of the arcs it encompasses.

$m$

we have

$m$

substitute

$72\°=\frac{1}{2}(y-x)$

$144\°=(y-x)$

$y=144\°+x$ ------> equation A

Remember that

$x+y=360\°$ -----> equation B ( complete circle)

substitute equation A in equation B and solve for x

$x+(144\°+x)=360\°$

$2x=360\°-144\°$

$x=216\°/2=108\°$

Find the value of y

$y=144\°+x$

$y=144\°+108\°=252\°$

therefore

The measure of arc EHL is $108\°$

The measure of arc EVL is $252\°$

step 2

Find the measure of angle LVE

we know that

The inscribed angle measures half that of the arc comprising

Let

x-----> the measure of arc EHL

$m$

we have

$x=108\°$

substitute

$m$

3 0

3 years ago

Induction is kind of thinking you use to get specific answers from a general rule true or false

lyudmila [28]

I think the answer should be False! Because the induction it is not kind of thinking with using their specific answers from the general rule.

Hope it helped!

4 0

3 years ago

Read 2 more answers

Translate the new algebraic expression you created in Question 1 to a verbal expression.

svetoff [14.1K]

Answer:

What are you asking?

Step-by-step explanation:

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2 years ago

Based only on the given information, it is guaranteed that

True [87]

A. hope this helps I’m pretty sure it’s right though

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For which values of s would the product of s/5 ×10 be greater than 10?

Neporo4naja [7]

Answer:

so I hope we're on understanding that I don't actually know the answer you know you have to earn points on this app so to like for it to keep answering your questions I've only done this once I'm so sorry yeahso we're going to be honest I don't really know the answer but good luck and I'm sorry for wasting your time so

Step-by-step explanation:

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2 years ago