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2 years ago

What is this I need help−4(8k+5)−5(9k+4)

Mathematics

2 answers:

erica [24]2 years ago

6 0

Answer:

-77k-40

Step-by-step explanation:

Distribute:

-32k-20-45k-20

Combine like terms

-77k-40

dusya [7]2 years ago

3 0

Answer:

-77k - 40

Step-by-step explanation:

-4(8k + 5) - 5(9k + 4)

~Distribute both sides

-32k - 20 - 45k - 20

~Combine like terms

-77k - 40

Best of Luck!

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Find the area of the shaded region

Brilliant_brown [7]

Answer:

If you multiply the length and width it's already more than D and b so it's between 41 and 71 , I believe it's 71 though

4 0

2 years ago

What is the number between 100 and 200 and divisible by three and five and not divisible by 4

eimsori [14]

195 is between 100-200 and
195/5=39
195/3=65
But 195/4 is not a whole number the answer would be 48.75

So the number is 195. :)

6 0

3 years ago

A school wants to attract more students to its media center. The media specialist has been asked to conduct a survey to determin

aliina [53]

I would say C or B but I may be wrong

6 0

3 years ago

Is f(x) continuous at x equals 4? Why or why not? A. No, f(x) is not continuous at x equals 4 because ModifyingBelow lim Wit

soldier1979 [14.2K]

<u>Corrected Question</u>

Is the function given by:

$f(x)=\left\{\begin{array}{ccc}\frac{1}{4}x+1 &x\leq 4\\4x-11&x>4\end{array}\right$

continuous at x=4? Why or why not? Choose the correct answer below.

Answer:

(D) Yes, f(x) is continuous at x = 4 because $Lim_{x \to 4}f(x)=f(4)$

Step-by-step explanation:

Given the function:

$f(x)=\left\{\begin{array}{ccc}\frac{1}{4}x+1 &x\leq 4\\4x-11&x>4\end{array}\right$

A function to be continuous at some value c in its domain if the following condition holds:

f(c) exists and is defined.

$Lim_{x \to c}$ f(x)$ exists.

$f(c)=Lim_{x \to c}$ f(x)$

At x=4

$f(4)=\dfrac{1}{4}*4+1=2$

$Lim_{x \to 4}f(x)=2$

Therefore: $Lim_{x \to 4}f(x)=f(4)=2$

By the above, the function satisfies the condition for continuity.

The correct option is D.

3 0

3 years ago

The equation 9 y minus 6 x = 36 is written in standard form. What is the first step when writing an equivalent equation which so

enot [183]

Answer:

D. Subtract 9y from both sides of the equation.

Step-by-step explanation:

A. Divide both sides of the equation by 36.

B. Multiply both sides of the equation by 6.

C. Add 9y to both sides of the equation.

D. Subtract 9y from both sides of the equation.

Given:

9y - 6x = 36

To solve for x

Step 1: subtract 9y from both sides

9y - 6x - 9y = 36 - 9y

- 6x = 36 - 9y

Step 2: Divide both sides by -6

- 6x / -6 = (36 - 9y) / - 6

x = (36 - 9y) / - 6

The answer is

x = (36 - 9y) / - 6

8 0

3 years ago