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3 years ago

If h(x) = 5x -7,find the h(14)

Mathematics

1 answer:

Mrac [35]3 years ago

4 0

B. That is the correct answer because h(14) = 63 when you divide it by 3

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A rectangle has an area of 40 square units. The length is 6<br> units greater than the width.

stiks02 [169]

Answer:

Answer:

The width is 4 units, and the length is 10 units.

Step-by-step.

Step-by-step explanation:

area of rectangle = length * width

Let L = length; let W = width.

"The length is 6 units greater than the width.": L = W + 6

area = LW = 40

Since L = W + 6, we substitute L with W + 6.

(W + 6)W = 40

W^2 + 6W = 40

W^2 + 6W - 40 = 0

(W - 4)(W + 10) = 0

W - 4 = 0 or W + 10 = 0

W = 4 or W = -10

A width cannot be a negative number, so we discard the solution W = -10.

W = 4

L = W + 6 = 4 + 6 = 10

The width is 4 units, and the length is 10 units.

3 0

3 years ago

Read 2 more answers

How to convert y = - 2\5 x to standard form

coldgirl [10]

Bring it to the form ax + by = c, where a is positive, and there are no fractions in the equation.
Here, we need to add 2/5x to both sides:
2/5x + y = 0
Then multiply everything by 5 to get rid of the fraction
2x + 5y = 0 <==

5 0

3 years ago

Last one I need help in will give BRAINLY (don’t send me links)

iren2701 [21]

Answer:

x=11

Step-by-step explanation:

4x+11=5x (angle adb and edf are the same)

11=5x-4x

11=x

x=11

if you want you can check by doing...

(14*11-29)+(5*11)=180

4 0

3 years ago

Find the equation of the line that is perpendicular to LaTeX: y=-\frac{1}{5}x+3y = − 1 5 x + 3 and goes through the point (4, -3

Elenna [48]

Answer:

$y=5x-23$

Step-by-step explanation:

step 1

Find the slope of the line that is perpendicular to the given line

we have

$y=-\frac{1}{5}x+3$ -----> given line

The slope of the given line is

$m=-\frac{1}{5}$

Remember that

If two lines are perpendicular, then their slopes are opposite reciprocal

therefore

The slope of the line that is perpendicular to the given line is

$m=5$

step 2

Find the equation of the line in slope intercept form

$y=mx+b$

we have

$m=5\\point\ (4,-3)$

substitute

$-3=5(4)+b$

solve for b

$b=-23$

therefore

$y=5x-23$

6 0

3 years ago

Word problem.. i need help. Due at midnight

aniked [119]

The Brady family received 1 letter on July 28.

Step-by-step explanation:

Step 1:

Assume a = the number of letters, b = the number of bills, c = the number of ads, and d = the number of magazines.

From the question, they got 15 pieces of mail that day so $a+b+c+d=15.$

They got 5 more magazines than bills so $d = b + 5.$

The got the same number of letters as ads so $a=c.$

They got 3 more bills than ads so $b= c + 3.$

Step 2:

As we have only one equation to solve the values, we need to make every term in terms of a single term.

We make everything in terms of c.

So $a=c, b = c+3, c=c, d = b+5 = (c+3)+5=c+8.$

Substituting all this in the equation, we get

$a + b+c+d =(c)+(c+3)+(c)+(c+8) = 15, 4c+11=15.$

$4c=4, c = 1.$

Step 3:

Substituting c = 1 in other terms, we get

$a=c=1,$

$b=c+3=1+3=4,$

$c=1,$ and

$d = c+8 = 1+8=9.$

As a = 1, they received 1 letter that day.

8 0

4 years ago