If x=7 and y=−2, evaluate the following expression:3x+4y ​

Answer:

x=NEGATIVE 1/2, POSITIVE 2

Step-by-step explanation:

Just use math.waycom

The non-negative zero of the function f(x) is x = 2.

The zero of the function is where the y-value is zero. The zero of a function is any replacement for the variable that will produce an answer of zero. Graphically, the real zero of a function is where the graph of the function crosses the x‐axis; that is, the real zero of a function is the x‐intercept(s) of the graph of the function.

here, we have,

For a given function f(x), the "zeros" of the function are the values of x such that:

f(x) = 0

In this case, we have the function:

f(x) = 6*x^2 - 9*x - 6

If we want to find the zeros of this function, we need to solve:

f(x) = 0 =  6*x^2 - 9*x - 6

To solve this, we can use the Bhaskara's formula, which says that for a general quadratic equation:

0 = a*x^2 + b*x + c

The zeros are:

x = -b ±√b² - 4ac / 2a

In this case our equation is:

0 =  6*x^2 - 9*x - 6

then, in the above notation, we have:

a = 6

b = -9

c = -6

Replacing these in our general formula, we get:

x = 9±15 /12

Then we have two zeros:

x = (9 + 15)/12 = 24/12 = 2

x = (9 - 15)/12 = -6/12 = -1/2

But we want only the non-negative, so we can discard the second one.

Concluding, the non-negative zero of the function f(x) is x = 2.

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Answer:

1/8+1 OR 1/8 +8/8

2/8+7/8 OR 1/4+7/8

3/8+6/8 OR 3/8+3/4

The fraction 9 / 8 can also be written as [1/8 + 8/8] , [2/8 + 7/8] , [3/8 + 6/8]

What is a fraction?

A fraction is a part of a whole. In arithmetic, the number is expressed as a quotient, in which the numerator is divided by the denominator.

Given data ,

The number = 9 / 8

The number can be written as the sum of two different fractions as

a) 1/8 + 8/8 = (1+8)/8

                  = 9/8

b) 2/8 + 7/8 = (2+7)/8

                   = 9/8

c) 3/8 + 6/8 = (3+6)/8

                   = 9/8

Hence ,

The fraction 9 / 8 can also be written as [1/8 + 8/8] , [2/8 + 7/8] , [3/8 + 6/8]

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Answer:

I think c I'm not to sure and ur hecka prettyyy

Answer:

girl/boy use photomath if ur failing or just use these.

Step-by-step explanation:

11. 5x^2-6x-12

12. 2x(4y+5x)

13.3y^2+16xy

if you need the rest use photomath I am sure it will come to the same answers I got.

Answer:

m<ACD = [tex]50^{o}[/tex]

Step-by-step explanation:

From the question given, ΔACD is a right angled triangle. Then we can apply one of the properties of a triangle to it.

In the triangle ACD:

<ACD + <DAC + <ADC = 180 (sum of angles in a triangle)

<ACD + 40 + 90 = 180

<ACD + 130 = 180

<ACD = 180 - 130

<ACD = [tex]50^{o}[/tex]

With the application of the property of the sum of interior angles of a triangle, the measure of <ACD is [tex]50^{o}[/tex].

Answer:

It is D

Step-by-step explanation:

It could be A but if we read the sentence correctly than we should understand about the number of stamps she bought in every month and how much her grandmother gave her.We should also read the options more than 10 times to understand it

Answer:

Step-by-step explanation:

Ratio = 4/7 : 1/8

        [tex]=\frac{\frac{4}{7}}{\frac{1}{8}}\\\\=\frac{4}{7}*\frac{8}{1}\\\\=\frac{32}{7}[/tex]

       = 32 : 7

[tex]\frac{\frac{1}{8}}{\frac{4}{7}}=\frac{1}{8}*\frac{7}{4}\\\\=\frac{7}{32}[/tex]

= 7 : 32

Ratio 4/7 over 1/8  is the multiplicative inverse of the ratio 1/8 over 4/7

Answer:

a) EF = 4

Step-by-step explanation:

CB/DE = BA/EF

8/4 = 8/EF

8EF = 4 x 8

EF = 4

Answer: =−x−14

Step-by-step explanation:

2(x−4)−3(x+2)

Distribute:

=(2)(x)+(2)(−4)+(−3)(x)+(−3)(2)

=2x+−8+−3x+−6

Combine Like Terms:

=2x+−8+−3x+−6

=(2x+−3x)+(−8+−6)

=−x+−14

Answer:

1/5

Step-by-step explanation:

Answer:

r = p(-b/a)

Step-by-step explanation:

Let p(x) = q(x)(ax + b) + r(x) where q(x) is the quotient when p(x) is divided by ax + b and r(x) is the remainder.

Since ax + b is a first degree polynomial, r(x) is one power less than ax + b is is just a constant, r.

So, p(x) = q(x)(ax + b) + r

Now, p(x) = r when q(x)(ax + b) = 0

since q(x) ≠ 0, ax + b = 0 ⇒ ax = -b ⇒ x = -b/a

⇒ p(x) = r when x = -b/a

So, r = p(-b/a)

So, the remainder when a polynomial function p(x) is divided by a first degree polynomial ax + b is p(-b/a)

Answer:

Monthly Payment $36.49

Total Interest Paid $151.31

Total Paid $1,751.31

Step-by-step explanation:

The slope is 12 and y- intercept is -5.

A line's slope is determined by how its y coordinate changes in relation to how its x coordinate changes. y and x are the net changes in the y and x coordinates, respectively. Therefore, it is possible to write the change in y coordinate with respect to the change in x coordinate as,

m = Δy/Δx where, m is the slope

Given:

y=12x−5

Now, from slope- intercept form

y = mx + b

where m is the slope and b is the y intercept.

Now, Comparing with given equation

m= 12 and b= -5

Hence, the slope is 12 and y- intercept is -5.

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Answer:

350 also I don't care about brainiest

Answer: 350

Step-by-step explanation:

Just do 25x14=350. And yes you can check brainless just go to your profile by tapping on your name or picture.

Answer:

128 servings

Step-by-step explanation:

16 cups in a gallon

1.25 cups /10 servings = .125 cups per serving

16 cups / .125 = 128 servings

Answer:

$8.72

Step-by-step explanation:

Since the tax rate is 9% of the lunch cost, the tax for this lunch is .72 dollars since 9% of 8 is 0.72(see math below). You add the 0.72 to 8 and the total cost is $8.72.

8 x (9/100) = tax

8 x 0.09 = 0.72

8+0.72 = $8.72

Answer:

138.16

Step-by-step explanation:

multiply them all together

Answer:

3/1.....4/1

Step-by-step explanation:

Answer:

its a 2

Step-by-step explanation:

Answer: I believe it is 92

Step-by-step explanation:

Answer: 15 sq. units

Step-by-step explanation:

Given

[tex]f(x)=\ln (2)2^x[/tex]

The area bound by it from x=0 to x=4

Using integration

[tex]I=\int_{0}^{4}f(x)dx[/tex]

[tex]I=\int_{0}^{4}\ln(2)2^xdx[/tex]

[tex]I=\left [ \dfrac{\ln (2)2^x}{\ln (2)} \right ]_0^4[/tex]

[tex]I=\left [ 2^x \right ]_0^4[/tex]

[tex]I=2^4-2^0\\I=16-1=15\ sq.units[/tex]

Answer:

∠ YZX ≈ 19.7°

Step-by-step explanation:

Using the sine ratio in the right triangle

sinZ = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{XY}{YZ}[/tex] = [tex]\frac{7.5}{22.3}[/tex] , then

∠ YZX = [tex]sin^{-1}[/tex] ([tex]\frac{7.5}{22.3}[/tex] ) ≈ 19.7° ( to 3 significant figures )

Answer:

A. 7

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

B. right, scalene

Answer:

3 bags

Step-by-step explanation:

4/3 x 9/2 = 36/6

36/6 = 6 square yards

so you will nee 3 bags of soil.

Answer:

z = 43

Step-by-step explanation:

Answer:

z=43

Step-by-step explanation:

27 + 16 = 43

Hope this helps!

Answer:

108

Step-by-step explanation:

3*36=108

Answer:

108

Step-by-step explanation:

36x3

Answer:

20 seconds

Step-by-step explanation:

4 x 5 = 20

Answer:

20 seconds

Step-by-step explanation:

LCM 4 times 5 is 20 just think abt it