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3 years ago

If f(x) = - x2 + 6x - 1 and g(x) = 3x2 - 4x - 1, find (f - g)(x).

Mathematics

1 answer:

Maurinko [17]3 years ago

3 0

Answer:

30. C) -15-(-6) = - d). -7.9 = -63. E) -15+6 = -9 f) . 35:-7 = 5 g. 3[2(6+1)-32). 1+(22-1)+1. 1 = 3 h). 4:3 = ... -6a-4b+ 2 . 288+1)(x-1). -. 2rx-1). 3. Multiply and Simplify. b) a) -5(2x-4). = -10x + 20.

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What number is 22% of 320? A.) 704 B.) 7040 C.) 7.04 D.) 70.4

irina1246 [14]

The answer would be

D.) 70.4

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3 years ago

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-2x=-14, what is the value of x?

eduard

$\huge{\boxed{7}}$

To find the value of $x$ , we need to isolate it. In this case, we can do so by dividing it by $-2$ , and what we do to one side of the equation, we have to do to the other. So, divide both sides of the equation by $-2$ . $x=\boxed{7}$

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3 years ago

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A quadrilateral has angles that measure 56°, 97°, and 136°. What is the measure of the fourth angle?

Aleksandr [31]

The quadrilateral adds up to 360 degrees.

the 3 angles given add up to 289 degrees.

subtract the 3 given from 360

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71 degrees.

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4 0

3 years ago

A music store sold a total of 27 used trumpets and clarinets in one month. Trumpets cost $149 and clarinets cost $99. If total s

Annette [7]

Answer:

The number of clarinets musical store sold was 16. and number of trumpets musical store sold was 11.

Step-by-step explanation:

Let the musical store sells 'x' number of trumpets and 'y' number of clarinets.

According to question,

Total number of trumpets and clarinets sold is 27 that is

$x+y=27$ ..............(1)

Also given Trumpets cost $149 and clarinets cost $99.

then the shop sold x trumpets for $149x and sold y clarinets for $99y and total sales were $3233.

thus, $149x+99y=3233$ ...........(2)

Solving for equation (1) and (2),

Multiply equation (1) by 149 , we get

(1) ⇒ $149x+149y=4023$ ........(3)

Now, subtract equation (3) from equation (2) , we get

$149x+149y-(149x+99y)=4023-3233$

$\Rightarrow 149x+149y-149x-99y=790$

$\Rightarrow 149y-99y=790$

$\Rightarrow 50y =790$

$\Rightarrow y =\frac{790}{50}=15.8$

Thus, number of clarinets musical store sold was 15.8 but since clarinets are to be in whole number rounding off to the nearest integer 16.

and put y = 16 in (1) , we get

$x+y=27 \Rightarrow x+16=27 \Rightarrow x=27-16=11$

Thus, number of trumpets musical store sold was 11.

4 0

3 years ago

suppose+a+study+claims+that+the+results+are+significant+at+the+1%+significance+level.+which+of+the+following+does+this+not+imply

Alenkinab [10]

The observed results would be very unlikely if the alternative hypothesis were true.

What does the alternative hypothesis mean?

A statement used in experiments using statistical inference is known as the alternative hypothesis. It is indicated by Ha or H1 and runs counter to the null hypothesis.

Alternatively, it is only a null-free option, as we can also state. An alternative theory is a claim that a researcher is testing in a hypothesis test.

What is an illustration of a different hypothesis?

Just like the null, the alternative hypothesis is an option. For instance, if your null is "I'm going to win up to $1,000" and your alternate is "I'm going to win $1,000 or more," you're essentially determining whether there is sufficient variance in the alternate hypothesis to allow you to reject the null hypothesis.

Learn more about alternative hypothesis

brainly.com/question/27335001

#SPJ4

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1 year ago