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rusak2 [61]
3 years ago
15

Can someone do this pleaseeee. I owe u!!​

Mathematics
1 answer:
Elden [556K]3 years ago
4 0

A.) Plan A: 40+40=0.80$

Plan B: 50+38=0.88$

Plan B offers the better deal

B.) Plan A: 40+(40·3)=1.60$

Plan B: 50+(38·3)=1.64$

Plan B offers the better deal

C.) Plan A: 40+(40·5)=2.40$

Plan B: 50+(38·5)=2.40$

They offer the same?

D.) Plan A: 40+(40·6)=2.80+.35=3.15$

Plan B: 50+(38·6)=2.78+.31=3.09$

This one confuses me..

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Solve and check.
Thepotemich [5.8K]
C/3 = 6 1/7

Multiply 3 to both sides:

C = 6 1/7 * 3

Convert 6 1/7 into an improper fraction:

C = 43/7 * 3

Multiply 3 to the numerator:

C = 129/7

Convert back into a mixed number:

C = 18 3/7
5 0
3 years ago
Read 2 more answers
*EASY GRADE 7 MATH*
neonofarm [45]

Step-by-step explanation:

We can see from the image that z and 20° degrees are complementary, meaning they have a sum of 90°. From this, z = 70°. Hope this helps!

3 0
3 years ago
Read 2 more answers
Use the Rational Zero Theorem to list all possible rational zeros for the given function. f(x) = 10x^5 + 8x^4 - 15x^3 +2x^2 - 2
vagabundo [1.1K]

Given:

The function is:

f(x)=10x^5+8x^4-15x^3+2x^2-2

To find:

All the possible rational zeros for the given function by using the Rational Zero Theorem.

Solution:

According to the rational root theorem, all the rational roots are of the form \dfrac{p}{q},q\neq 0, where p is a factor of constant term and q is a factor of leading coefficient.

We have,

f(x)=10x^5+8x^4-15x^3+2x^2-2

Here,

Constant term = -2

Leading coefficient = 10

Factors of -2 are ±1, ±2.

Factors of 10 are ±1, ±2, ±5, ±10.

Using the rational root theorem, all the possible rational roots are:

x=\pm 1,\pm 2,\pm \dfrac{1}{2}, \pm \dfrac{1}{5},\pm \dfrac{2}{5},\pm \dfrac{1}{10}.

Therefore, all the possible rational roots of the given function are \pm 1,\pm 2,\pm \dfrac{1}{2}, \pm \dfrac{1}{5},\pm \dfrac{2}{5},\pm \dfrac{1}{10}.

5 0
3 years ago
Help !Which of the following describes the function x4 − 3?
Pachacha [2.7K]
D. the degree of x4-3
7 0
4 years ago
Need help with this ​
photoshop1234 [79]

Answer:

9.6x10^3

Step-by-step explanation:

9,600

find the highest number

9,600

^

bring the decimal to that number

9.600

count how many spaces it took to get to that number

9.600

   ^ ^ ^

3

so its 10 to the third power

7 0
3 years ago
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