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3 years ago

Please help me on this question (7th grade math) show your work

Mathematics

1 answer:

lakkis [162]3 years ago

6 0

You can take two of the x and y on the table to find the slope:

y2 - y1 / x2 - x1

Lets use (3, 12) and (4, 15)

15 - 12 / 4 - 3

3/1

The slope is 3

Now you can use the point-slope formula to find the equation: y - y1 = m(x - x1)

y - 9 = 3(x - 2)

y - 9 = 3x -6

y = 3x + 3

So you are correct with choice B.

Hope this helped! Mark as Brainliest Please! :)))

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Add and simplify 1/5 + 1/10

aliya0001 [1]

In order to add these fractions we have to make a common denominator.

1/5 can turn into 2/10 Its the same thing. And its easier to solve with.

now lets multiply.

$\frac{2}{10}$ × $\frac{1}{10}$

Now we add across

2 + 1 = 3

------------

10 + 10 = 10 ( When adding fractions like these the denominator stays the same)

So your answer is...

$\frac{3}{10}$

Good Luck! :)

7 0

3 years ago

Estimate the quotient 368/4

spin [16.1K]

Im pretty sure the quotient is 92

3 0

3 years ago

Read 2 more answers

The demand equation for a manufacturer's product is:

Juli2301 [7.4K]

From the given price function, we have;

(a) $\frac{dp}{dq} = - 13$

(b) The point elasticity of demand is 0.0256; inelastic demand

(d) Increase

<h3>How can the elasticity of demand be found?</h3>

a. The given function is presented as follows;

$p = 50 \times (151 - q) ^{0.02 \times \sqrt{q + 19} }$

Differentiating the above function with a graphing calculator and setting q = 150 gives;

$\frac{dp}{dq} = - 13$

b. The point elasticity of demand is given by the formula;

$e \: = \frac{dq}{dp} \times \frac{p}{q}$

When q = 150, we have;

P = 50

Which gives;

$e \: = \frac{1}{13} \times \frac{50}{150} = 0.0256$

The point elasticity of demand, E = 0.0256

The demand is inelastic (less than 1) when the quantity demanded is 150 units

c. If the quantity demanded decreases from 150 to 140 units, we have;

$0.0256 \: = \frac{1}{13} \times \frac{p}{140} =$

Which gives;

p = 46.6

The price when the quantity demanded decreases to 140 is $46.6

d. Given that increase in price, from 46.6 to 50, increases the quantity demanded from 140 to 150, therefore;

The manufacturer should increase the price, p to increase the revenue, R.

R = p × q

Learn more about elasticity of demand here;

brainly.com/question/19141990

3 0

2 years ago

For the equation y=7x+3 the value of X changes from 1 to 2

WITCHER [35]

When x=1, 7x+3 = 10.

When x=2, 7x+3 = 17.

When the value of 'x' changes from '1' to '2', the value of 7x+3 changes
from '10' to '17' . . . a distance of '7' .

That's what the ' 7x ' in the equation means, and that's what we mean
when we say that the 'slope' of the equation is '7'. 'y' changes '7' for
every '1' that 'x' changes.

5 0

3 years ago

Read 2 more answers

Please help me! Immediate Urgent help please!

KATRIN_1 [288]

Answer:

a = 144
b = 67

Step-by-step explanation:

When a transversal crosses parallel lines, the interior same-side angles are supplementary. That means ...

a° and 36° are supplementary, so

a = 180 - 36 = 144

and

b° and 113° are supplementary, so

b = 180 -113 = 67

_____

The bases of this trapezoid are parallel, as indicated by the right-pointing arrow on each one. The left- and right-ends of the trapezoid are lines between the parallel bases that meet the requirement for the marked angles next to each one to be supplementary.

6 0

3 years ago