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3 years ago

Evaluate a2 - 6 for a = 4 and b = 17

Mathematics

1 answer:

Natalija [7]3 years ago

7 0

Answer:

The answer is -94 but where is b

Step-by-step explanation:

2(4)-6(17)=-94

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Sue Ellen sews quilts. She charges $45 for fabric and sewing supplies and $20 for each hour,

mars1129 [50]

Answer:

D: 20h + 45 = 165

Step-by-step explanation:

20 for EACH hour means that there's a variable (h) attached to 20 so it has to be 20h

Because of that, we can eliminate choices A and B.

Charges mean that it's ADDED to the price so it has to be 45 PLUS 20h

20h + 45 = 165

7 0

3 years ago

Help me plssssssssssssss

Elena-2011 [213]

Answer:

Step-by-step explanation:

3/4 × 2/6 = 1/4

3/4÷6/2=1/4

3 0

3 years ago

Read 2 more answers

Evaluate the series: 2-10+50-250..., n=8

garik1379 [7]

The sum of first 8 terms of series is -130208

Solution:

Given that,

2 - 10 + 50 - 250 , ....

n = 8

Find the common ratio between a term and its previous term

$r = \frac{-10}{2} = -5\\\\r = \frac{-250}{50} = -5$

Thus common ratio is same

This is a geometric series

The sum of terms of geometric sequence is given as:

$S_n = \frac{a_1(1-r^n)}{1-r}$

Where,

r is the common ratio

n is the nth term

$a_1$ is the first term of series

From series,

$a_1 = 2\\\\r = -5\\\\n = 8$

Therefore,

$S_8 = \frac{2 \times (1 - (-5)^8)}{1-(-5)}\\\\S_8 = \frac{2 \times (1-390625)}{6}\\\\S_8 = -130208$

Thus sum of first 8 terms of series is -130208

6 0

4 years ago

Ursula tosses two six-sided number cubes and ADDS the numbers rolled. Which of these is a list of the outcomes of the two row? A

zalisa [80]

Answer:

A) 3, 4, 5, 6, 7, 8

Step-by-step explanation:

2+1, 2+2, 2+3, 2+4, 2+5, 2+6= 3, 4, 5, 6, 7, 8

8 0

3 years ago

The graphs below have the same shape.what is the equation of the red graph?

Setler [38]

Answer:

$G(x)=4-x^{4}$

Step-by-step explanation:

Notice that the red graph is the blue graph shifted 1 units up.

According to the function transformation rules, we add $k$ to the output of the function to shift its graph $k$ units up, and we subtract $k$ to the output of the function to shift its graph $k$ units down.

The output of our function is $3-x^{4}$ , and since we want to shift 1 units up, $k=1$ . In other words, we just need to add 1 to the output of the function:

$G(X)=3-x^{4} +1$

$G(x)=3+1-x^{4}$

$G(x)=4-x^{4}$

We can conclude that the equation of the red graph is $G(x)=4-x^{4}$ .

6 0

3 years ago