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4 years ago

8

Need help with all And have to show work

1 answer:

kari74 [83]4 years ago

8 0

Altho' I can easily guess what you're supposed to do here, I must point out that you haven't included the instructions for this problem.

I'll help you by example. Let's look at the first problem:

"Evaluate 6(z-1) at z-4."

Due to "order of operations" rules, we must do the work inside the parentheses FIRST. Replace the z inside (z-1) with "-4". We obtain

6(-4-1) = 6(-5) = -30 (answer.)

Your turn. Try the next one. If it's unclear, as questions.

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Help me plz quick my phone about to die

konstantin123 [22]

I'll do the first graph.

We can easily find the y intercept by inputting 0 for x.

y = -2(0) + 7
y = 7

The y-intercept is (0, 7)

To find the x intercept, isolate x.

y = -2x + 7
Add 2x to both sides.
2x + y = 7
Subtract y from both sides.
2x = -y + 7
Divide by 2 on both sides.
x = -1/2y + 3.5

Input 0 for y.

x = -1/2(0) + 3.5
x = 3.5

The x intercept is (3.5, 0)

Now try the rest own your own! :)

5 0

4 years ago

Consider the following equivalent expressions: 38÷1312 and 38⋅ab. What are the values of a and b? Give the value of a followed b

yKpoI14uk [10]

Answer:

The values of a and b are {12,13}

Step-by-step explanation:

As,

$\frac{\frac{3}{8}}{\frac{13}{12}}=\frac{3}{8}\frac{a}{b}$

We convert the division into a multiplication by inverting the denominator

$\frac{3}{8}}\frac{12}{13}=\frac{3}{8}\frac{a}{b}$

Therefore, the smallest possible non-negative whole numbers for a and b could be are 12 and 13, respectively.

7 0

3 years ago

The area of a flower bed is 24 square feet. If the other sides were whole number demensions, how many lengths and widths are pos

goldenfox [79]

Answer:

The possible combinations are (4 & 6) ,(8 &3), (2 &12), (24 &1)

Step-by-step explanation:

The area of a flower bed is 24 square feet.

Now, the factors of 24 are 2 x 2 x 2 x 3.

Hence, if the other sides were whole number dimensions, then the possible combinations will be (4 & 6) ,(8 &3), (2 &12), (24 &1)

3 0

4 years ago

Hey i need help pls be honest. WILL GIVE BRAINLIEST!!!!!!!!

Gnoma [55]

12 x 12 = 144
20 x 12 = 240
=384

ANSWER: 384

6 0

3 years ago

A certain college graduate borrows $8000 to buy a car. The lender charges interest at an annual rate of 10%. Assuming that inter

MaRussiya [10]

Answer:

The payment is $k=\$3216.92$ .

Interest paid during the 3-year period is $I_{T}=\$1651.76$

Step-by-step explanation:

Hi

<u>The Payment amount</u>

We are going to use the formula below with $VP=\$8000, i=10\%$ and $n=3$ .

$k=\frac{VP}{[\frac{1-(1+i)^{-n}}{i}] } =\frac{8000}{[\frac{1-(1+0.1)^{-3}}{0.1}] }=3216.92$

<u>Interest paid during the 3 year</u>

<u>First period</u>

$I_{1}=VP*i=8000*0.1=800$

$CS_{1}=k-I_{1}=3216.92-800=2416.92$

$Balance_{1}=VP-CS_{1}=8000-2416.92=5583.08$

<u>Second period</u>

$I_{2}=B_{1}*i=5583.08*0.1=558.31$

$CS_{2}=k-I_{2}=3216.92-558.31=2648.61$

$Balance_{2}=VP-CS_{2}=5583.08-2648.61=2924.47$

<u>Third period</u>

$I_{3}=B_{2}*i=2924.47*0.1=292.45$

Sum of Interest paid during the 3 years

$I_{t}=I_{1}+I_{2}+I_{3}=800+558.31+292.45=1651.76$

5 0

4 years ago