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3 years ago

5

Jennifer figures that she uses 2 pens per month. she started the year with 10 pens. how do i write the equation that represents

the number of pens, y, she will have after x months

1 answer:

andrew-mc [135]3 years ago

5 0

So it would be 10-2x . X would be the months and it would be -2 because she uses that much per month

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Which of the following is an equation of the line, in point-slope form, that passes through the points (-3,-1) and (6,8)?

Dimas [21]

Answer:

D.

Step-by-step explanation:

in order to choose the correct answer, it is enough to substitute the given coordinates [(-3;-1) and (-6;8)] into the equations:

A. -1-8=3(-3+6); ⇔ -9≠9; wrong

B. -1+8=-3(-3+6); ⇔ 7≠-9; wrong

C. -1+8=3(-3-6); ⇔ 7≠-27; wrong

D. (-3;-1): -1-8=-3(-3+6); ⇔ -9=-9

(-6;8): 8-8=-3(-6+6); ⇔ 0=0 - correct.

Note, the suggested way is not the only one.

PS. the given points are (-3;-1) and (<u>-6;</u>8).

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3 years ago

Find the value of the expression 0.5^10/0.5^7

SIZIF [17.4K]

Answer:

The solution is:

$\frac{0.5^{10}}{0.5^7}=0.125$

Step-by-step explanation:

Given the expression

$0.5^{10}\div 0.5^7$

Solving

$\frac{0.5^{10}}{0.5^7}$

$\mathrm{Apply\:exponent\:rule}:\quad \frac{x^a}{x^b}=x^{a-b}$

so

$\frac{0.5^{10}}{0.5^7}=0.5^{10-7}$

$\mathrm{Subtract\:the\:numbers:}\:10-7=3$

$=0.5^3$

$=0.125$ ∵ $0.5^3=0.125$

Therefore, the solution is:

$\frac{0.5^{10}}{0.5^7}=0.125$

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3 years ago

5/4+x/2 =3<br><br> Hey can someone explain this please!

Vikentia [17]

Answer:

x = $\frac{7}{2}$

Step-by-step explanation:

Given

$\frac{5}{4}$ + $\frac{x}{2}$ = 3 ( multiply through by 4 to clear the fractions )

5 + 2x = 12 ( subtract 5 from both sides )

2x = 7 ( divide both sides by 2 )

x = $\frac{7}{2}$

3 0

4 years ago

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Dimas [21]

Answer: f(2)<g(2)

Step-by-step explanation:

Substitute 2 for x.

f(2)=5(2^4)=60

g(2)=11×6^2=11×36=396

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3 years ago

2. Explain, in words, how you would solve this problem. Hint: you should get 1 point

makkiz [27]

Answer:

9-24=4(3)

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3 years ago

Read 2 more answers