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ladessa [460]
3 years ago
6

Add the following polynomials (2x + 5) + (-1x -4) Answer options: 3x + 9, 3x + 1, 1x + 1, 1x + 9

Mathematics
1 answer:
Leni [432]3 years ago
3 0

Answer:

1x+1

Step-by-step explanation:

just open the parentheses

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1. 6 divided by 8/9 SHOW YOUR WORK AND EXPLAIN ​
malfutka [58]

Answer:

6.75 is the answer

Step-by-step explanation:

6(8/9)

=6.75

6 0
3 years ago
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Dao receives an employee discount on the purchase of a new automobile. The automobile that he is interested in has a sticker pri
ZanzabumX [31]

Answer: Dao will pay $ 15,219.2

Step-by-step explanation:

Hi, to answer this question we have to multiply the price of the automobile by the percentage discount in decimal form (divided 100)

18,560 (18/100) = 18,560 (0.18) = $ 3,340.8 (discount amount)

Finally, we have to subtract the discount amount to the automobile's price:

18,560- 3,340.8 =$ 15,219.2  

Dao will pay $ 15,219.2.

Feel free to ask for more if needed or if you did not understand something.

7 0
3 years ago
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To find the equation of a line, we need the slope of the line and a point on the line. Since we are requested to find the equati
murzikaleks [220]

Answer:

x-4y+4=0

f(x)=\sqrt x and x=4

Step-by-step explanation:

We are given that a curve

y=\sqrt x

We have to find the equation of tangent at point (4,2) on the given curve.

Let y=f(x)

Differentiate w.r.t x

f'(x)=\frac{dy}{dx}=\frac{1}{2\sqrt x}

By using the formula \frac{d(\sqrt x)}{dx}=\frac{1}{2\sqrt x}

Substitute x=4

Slope of tangent

m=f'(x)=\frac{1}{2\sqrt 4}=\frac{1}{2\times 2}=\frac{1}{4}

In given question

m=\lim_{x\rightarrow a}\frac{f(x)-f(a)}{x-a}

\frac{1}{4}=\lim_{x\rightarrow 4}\frac{f(x)-f(4)}{x-4}

By comparing we get a=4

Point-slope form

y-y_1=m(x-x_1)

Using the formula

The equation of tangent at point (4,2)

y-2=\frac{1}{4}(x-4)

4y-8=x-4

x-4y-4+8=0

x-4y+4=0

8 0
3 years ago
"Which diagram below shows the first step in parallel line construction on a point outside a line?
mote1985 [20]

<u>Answer</u>

2nd diagram


<u>Explanation.</u>

When contraction a parallel line from a point say N, outside the line, the first thing is to draw a line from point N to the that line.

The point where this line from N intersect with line, name it say P. From this point you can use the properties of angles in a parallel lines to construct the parallel line.

The line NP can act like a transverse of the two parallel lines. The diagram 2 shows first step.


5 0
3 years ago
Read 2 more answers
Let 3x^2+kx+4. determine all values of k such that the quadratic equation f(x) =0 has one real root
user100 [1]
//I'll use the discriminant rule for this.
b^2 - 4ac = 0 when one real root

Therefore, k^2 - 4*3*4= 0
k^2 = 48
k= +-4√3
7 0
4 years ago
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