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3 years ago

Which is equivalent to (7 – 3)4?

1 answer:

3 0

Following order of operations or PEMDAS, we do parentheses first, so
7-3 = 4.

Now we have (4)4.

This is simple multiplication. 4 * 4 = 16, which is your answer.

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A trapezoid has an area of 24 square meters. The lengths of the bases of the trapezoid are 5 meters and 7 meters. What is the he

Maurinko [17]

The area of any trapezoid is

Area = (1/2) x (height) x (one base + the other base) .

Take that formula and write in the numbers you know:

   (24 m²) = (1/2) x (height) x (5m + 7m)

       (24 m²) = (6m) x (height)

Divide each side by 6m :

   Height = (24 m² / 6m)

      = 4 m .

3 0

3 years ago

Read 2 more answers

PLZ HELP MEEE !!!!!!!!!!

Montano1993 [528]

Answer:

A - 4/13ths is a larger number

B- 3/10ths is a ratoinal mumner

7 0

3 years ago

Read 2 more answers

What is the equation of a line that passes through the point (8, −2) and is parallel to the line whose equation is 3x + 4y = 15?

Dafna1 [17]

Step 1

<u>Find the slope of the given line</u>

we have

$3x+4y=15$

Isolate the variable y

Subtract $3x$ both sides

$3x+4y-3x=15-3x$

$4y=-3x+15$

Divide by $4$ both sides

$y=-\frac{3}{4}x+ \frac{15}{4}$

the slope of the given line is

$m=-\frac{3}{4}$

Step 2

Find the equation of the line that passes through the point $(8,-2)$ and is parallel to the given line

we know that

if two lines are parallel, then their slopes are equal

The equation of the line into point-slope form is equal to

$y-y1=m(x-x1)$

we have

$m=-\frac{3}{4}$

$(x1,y1)=(8,-2)$

substitute in the equation

$y+2=-\frac{3}{4}(x-8)$

$y=-\frac{3}{4}x+6-2$

$y=-\frac{3}{4}x+4$ or $3x+4y=16$

therefore

<u>the answer is</u>

$y=-\frac{3}{4}x+4$

$3x+4y=16$

8 0

3 years ago

Solve the Fahrenheit equation for Celsius

horrorfan [7]

The first step you should do is subtract 32 from both sides so your answer will turn out like this -

F = (9/5) C + 32
-
F - 32 = (9/5)

Then we will multiply both sides by 5.

5 ( F - 32 ) = 9 C

Divide both sides by 9 to isolate C.

(5/9) ( F - 32 ) = C

So the answer is :

C = (5/9) ( F - 32 )

Hope this helps :)

7 0

3 years ago

Read 2 more answers

A company has two types of machines, type R and type S. Operating at a constant rate, a machine of type R does a certain job in

kozerog [31]

Answer: C. 6

Step-by-step explanation:

Given : Time taken by Machine R to do the job = 36 hours

Time taken by Machine S to do the job = 18 hours

Let x be the number of each type of machine to do the job.

Then , according to the question the required equation will be :-

$\dfrac{x}{36}+\dfrac{x}{18}=\dfrac{1}{2}\\\\\Rightarrow\ x(\dfrac{1}{36}+\dfrac{1}{18})=\dfrac{1}{2}\\\\\Rightarrow\ \dfrac{x}{12}=\dfrac{1}{2}\\\\\Rightarrow\ x=\dfrac{12}{2}=6$

Hence, the number of machines of type R were used =6

8 0

4 years ago