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3 years ago

7

11 points!!!!!!!! and brainliest

2 answers:

bulgar [2K]3 years ago

5 0

Answer:

20

Step-by-step explanation:

Gekata [30.6K]3 years ago

3 0

Replace x with 5 in each equation then subtract:

f(x) = 2(5)^2 - 4(5) = 30

g(x) = 5-2(5) = -5

f(x) - g(x) = 30 - - 5 = 30 +5 = 35

The answer is C. 35

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Which exponential function goes through the points (1, 16) and (4, 128)?

djyliett [7]

Answer:

Here is the complete question (attachment).

The function which represent the given points are $f(x)=8(2)^{x}$

Step-by-step explanation:

We know that a general exponential function is like, $y=a(b)^{x}$

We can find the answer by hit and trial method by plugging the values of $(x,y)$ coordinates.

Here we are going to solve this with the above general formula.

So as the points are $(1,16)$ then for $x=1,\ y=16$

Can be arranged in terms of the general equation.

$ab^1=16$ ...equation(1) and $ab^4=128$ ...equation(2)

$a\times b=16, then\ a=\frac{16}{a}$

Plugging the values in equation 2.

We have

$\frac{16}{b} b^4=128,16\times b^3=128,b=\sqrt[3]{\frac{128}{16}} =\sqrt[3]{8}=2$

Plugging $b=2$ in equation 1.

We have $a=\frac{16}{b} =\frac{16}{2} =8$

Comparing with the general equation of exponential $a=8$ and $b=2$

So the function which depicts the above points = $y=8(2)^x$

From theoption we have B as the correct answer.

7 0

3 years ago

Translate this sentence into an equation. 48 is the product of Greg’s score and 3. Use the variable g to represent Greg’s score

wolverine [178]

Answer:

3*g = 48

Step-by-step explanation:

Greg's score multiplied by 3 is equal to 48 (the product).

3 0

3 years ago

There is 7/8 quarts of orange juice. Mrs. Mathewson would like to serve her guests 3/16 quarts orange juice. How many guests can

kotegsom [21]

Answer:

$4\frac{2}{3}$ guests.

Step-by-step explanation:

We have been given that there are 7/8 quarts of orange juice. Mrs. Mathewson would like to serve her guests 3/16 quarts orange juice.

To find the number of guests Mrs. Mathewson can serve with 7/8 quarts of juice, we will divide 7/8 by 3/16 as:

$\text{Number of guests Mrs. Mathewson can serve}=\frac{7}{8}\div\frac{3}{16}$

Convert to multiplication problem by flipping the 2nd fraction:

$\text{Number of guests Mrs. Mathewson can serve}=\frac{7}{8}\times\frac{16}{3}$

$\text{Number of guests Mrs. Mathewson can serve}=\frac{7}{1}\times\frac{2}{3}$

$\text{Number of guests Mrs. Mathewson can serve}=\frac{14}{3}$

$\text{Number of guests Mrs. Mathewson can serve}=4\frac{2}{3}$

Therefore, Mrs. Mathewson can serve orange juice to $4\frac{2}{3}$ guests.

3 0

2 years ago

Five students ran in their schools field day competition. Chris beat Allie by 7 yards but he was 2 yards behind Elena. Derrick f

anzhelika [568]

From last place to first BART was last the it was DERRICK, ALLIE, and CHRIS and ELENA in first. I hope this helps you!

4 0

3 years ago

3(2a + 1) = -5(a + 6)

Lemur [1.5K]

3(2a+1)=-5(a+6)
First expand the brackets.
6a+3=-5a-30
Now add 5a to both sides.
11a+3=-30
Then subtract 3 from both sides.
11a=-33
Finally divide both sides by 11.
a=- 33/11
=-3

4 0

3 years ago