3 years ago

Simplify 7.6 - 23 help me pleaseeee

Mathematics

2 answers:

zepelin [54]3 years ago

6 0

Answer:-15.4

Step-by-step explanation:

Harlamova29_29 [7]3 years ago

5 0

Answer:

-15.4

Step-by-step explanation:

Simply just means "solve" or "make the equation shorter"

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..vertex: (4, -1)<br> f(3) = -6

s344n2d4d5 [400]

Answer:

$\huge\boxed{f(x)=-5(x-4)^2-1=-5x^2+40x-81}$

Step-by-step explanation:

The vertex form of an equation of a parabola:

$f(x)=a(x-h)^2+k$

$(h;\ k)$ - vertex

We have

vertex $(4;\ -1)\to h=4;\ k=-1$

$f(3)=-6$

Therefore we have:

$f(x)=a(x-4)^2+(-1)=a(x-4)^2-1$

Substitute $x=3$ and $f(3)=-6$

$a(3-4)^2-1=-6\qquad|\text{add 1 to both sides}\\\\a(-1)^2=-6+1\\\\a(1)=-5\\\\a=-5$

Finally:

$f(x)=-5(x-4)^2-1=-5(x^2-2(x)(4)+4^2)-1\\\\=-5(x^2-8x+16)-1=-5x^2+(-5)(-8x)+(-5)(16)-1\\\\=-5x^2+40x-80-1=-5x^2+40x-81$

4 0

3 years ago

Crispy Clover, a popular vegetarian restaurant, introduced a new menu that has 20% more dishes than the previous menu. The previ

Ainat [17]

Answer:

N = D * 1.20

Step-by-step explanation:

In order to calculate the number of dishes that the previous menu had we first need to turn this percentage into a decimal by dividing it by 100

20% / 100 = 0.20

Now we add a 1 to it since we are increasing the old menu by this amount

0.20 + 1 = 1.20

Now we can multiply this by the previous menu dishes (D) to get the new amount of menu dishes (N)

N = D * 1.20

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3 years ago

Every integer is a divisor of itself. A proper divisor of an integer means a positive divisor other than the integer itself. For

sattari [20]

The answer is 12
1x12 2x6 3x4
1+2+6+3+4=16

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3 years ago

Gretchen and Ezia received equal scores on a test made up of multiple choice questions and an essay. Gretchen got 18 multiple ch

Paul [167]

I think its 91.

NOT Guaranteed this is the Answer. Best of luck to you.

5 0

3 years ago

Read 2 more answers

Solve for f .-f+2+4f=8-3f

Alex Ar [27]

-f + 4f + 2 = 8 - 3f

3f + 2 = 8 - 3f

6f = 6

f = 1

4 0

3 years ago

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