I need help with this math can someone explain it please?

5. Solve the following system by graphing and identify the point of intersection.

Misha Larkins [42]

Answer:

Step-by-step explanation:

The answer should be the first one

A) (2, -4)

6 0

3 years ago

A jeweler is selling bracelets at an art convention. it costs $135 to obtain a booth at the convention. the cost to make a singl

tangare [24]

Answer:

(a) Loss from selling 15 necklaces

(b) $b > 18$

Step-by-step explanation:

The question has missing details. (See the comment section for missing details)

Given

$12b > 135 + 4.50b$

Solving (a): Will she make a profit from 15 necklaces

To do this, we substitute 15 for b in $12b > 135 + 4.50b$

$12 * 15 > 135 + 4.50 * 15$

$180 > 202.5$

The inequality is not true.

Hence, she'll make a loss from selling 15 necklaces

Solving (b): An expression that represents profit.

To do this, we solve for b in $12b > 135 + 4.50b$

Collect Like Terms

$12b - 4.50b > 135$

$7.5b > 135$

Make b the subject

$b > \frac{135}{7.5}$

$b > 18$

This implies that to make a profit, she must sell more than 18 necklaces.

6 0

3 years ago

In a certain city, the daily consumption of water (in millions of liters) follows approximately a gamma distribution with α = 2

Ne4ueva [31]

Answer:

The probability that on any given day the water supply is inadequate $0.1991$

Step-by-step explanation:

Given

α = 2 and β = 3

As per Gamma distribution Function

$P(X>9)= 1-P(X\leq 9)\\$

Expanding the function and putting the given values, we get -

$[tex]1 - \int\limits^9_0 {f(x;2,3)} \, dx \\1- \int\limits^0_0 {\frac{1}{9}xe^{\frac{-x}{3} } \, dx\\\\= 1- \frac{1}{9} [x(-3e^{\frac{-x}{3}}) -\int\limits {(-3e^{\frac{-x}{3}})} \, dx]^9_0= 1- 1/9 [x(-3e^{\frac{-x}{3}}) -9e^{\frac{-x}{3}})} \, dx]^9_0\\1-((\frac{-1}{3} *9*e^({\frac{-9}{3}})- e^(\frac{-9}{3}))- ((\frac{-1}{3} *0*e^(\frac{-9}{3})-e^{\frac{-0}{3}})\\1-((-3e^{\frac{-9}{3} }-e^{\frac{-9}{3}}-(0-1))\\1-(1-4e^{-3})\\1-(1-0.1991)\\1-0.8009\\0.1991$

The probability that on any given day the water supply is inadequate $0.1991$

5 0

4 years ago

Please help i dont know if im right

stepan [7]

It says that the sum of the bases are 46 and the bases are the top and bottom, so that means that one base the top or bottom are 23 each so what do you think

5 0

4 years ago

Find the measure of the indicated angle to the nearest degree. 8 22 ?

Blizzard [7]

Answer:

21 degrees

Step-by-step explanation:

To find this, we are going to use the appropriate trigonometric ratio

The right angle faces the length 22 which is the hypotenuse

The marked angle faces the length 8 which makes it the opposite

The trigonometric ratio that links the two is the sine

The sine is the ratio of the opposite to the hypotenuse

So, we have it that;

sine ? = 8/22

? = arc sine 8/22

? = 21 degrees

4 0

3 years ago