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3 years ago

-7(3z + 51 - 39)HELP ASAP PLSSSS AND SHOW YOUR WORK!!!!

Mathematics

1 answer:

zepelin [54]3 years ago

6 0

Answer:

z= -3.1111111111

Step-by-step explanation:

-7*3=-21

-7*51= -357

-7*-39= 273

-21z+(-357)+273

simplify

-21z-84

-21z/-21 (canceled)

84/-21= 3.1111111111

Hope this helps.

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Identify the hypothesis and conclusion of each conditional statement. Then write each sentence in if-then form

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If you place two collinear points, then they will fall on the same line

Step-by-step explanation:

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3 years ago

At the bank of a river, by measurement, a = 9 ft., b = 15 ft., c = 12 ft., and d = 7 ft. How long is x?

erik [133]

Answer:

Step-by-step explanation:

(x/12) = (15/9)

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3 years ago

A company finds it can produce 15 heaters for $ 4050â€‹, while producing 25 heaters costs $ 6550. Express theâ€‹ cost, y, as a l

amid [387]

Answer:

y=250x+300

Step-by-step explanation:

Let x be the number of heaters and y be the total cost.

We need to find the linear function for y in terms of x.

It is given that company can produce 15 heaters for $4050 and 25 heaters costs $ 6550.

It means the line passes through the points (15,4050) and (25,6550).

If a line passes through two points $(x_1,y_1)$ and $(x_2,y_2)$ , then the equation of line is

$y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)$

The equation of line is

$y-4050=\frac{6550-4050}{25-15}(x-15)$

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$y-4050=250(x-15)$

$y-4050=250x-3750$

Add 4050 on both sides.

$y-4050+4050=250x-3750+4050$

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8 0

3 years ago

A fast-food company is interested in knowing the probability of whether a customer viewed an advertisement for their new special

lord [1]

Answer:

45% probability that a randomly selected customer saw the advertisement on the internet or on television

Step-by-step explanation:

We solve this problem building the Venn's diagram of these probabilities.

I am going to say that:

A is the probability that a customer saw the advertisement on the internet.

B is the probability that a customer saw the advertisement on television.

We have that:

$A = a + (A \cap B)$

In which a is the probability that a customer saw the advertisement on the internet but not on television and $A \cap B$ is the probability that the customers saw the advertisement in both the internet and on television.

By the same logic, we have that:

$B = b + (A \cap B)$

12% saw it on both the internet and on television.

This means that $A \cap B = 0.12$

20% saw it on television

This means that $B = 0.2$

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This means that $A = 0.37$

What is the probability that a randomly selected customer saw the advertisement on the internet or on television

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45% probability that a randomly selected customer saw the advertisement on the internet or on television

6 0

3 years ago

Two parallel lines are crossed by a transversal.

patriot [66]

Answer:

C. $m=102$

Step-by-step explanation:

We have been given an image of two parallel lines crossed by a transversal. We are asked to find the measure of m.

We can see that angle that measure 78 degrees and angle m are consecutive interior angles.

Since we know that consecutive interior angles are supplementary, so we can set an equation to find the measure of m as:

$78^{\circ}+m^{\circ}=180^{\circ}$

$78^{\circ}-78^{\circ}+m^{\circ}=180^{\circ}-78^{\circ}$

$m^{\circ}=102^{\circ}$

Therefore, the value of m is 102 and option C is the correct choice.

5 0

3 years ago

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-7(3z + 51 - 39)HELP ASAP PLSSSS AND SHOW YOUR WORK!!!!​

-7(3z + 51 - 39)HELP ASAP PLSSSS AND SHOW YOUR WORK!!!!