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serious [3.7K]
3 years ago
6

F(x) = -22 – 4x Find f(-1)

Mathematics
2 answers:
LUCKY_DIMON [66]3 years ago
3 0
= -22-4(-1)
= -22+4
= -18
igor_vitrenko [27]3 years ago
3 0

Answer:

f(-1) = -18

Step-by-step explanation:

You just plug in -1 for x in the equation

f(x) = -22-4x

f(-1)=-22-4(-1)

f(-1)= -22+4

f(-1)=-18

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This grid follows two rules.
fredd [130]

Answer:

a = 4,

b = 12

c = 10

d = 15

Step-by-step explanation:

Since the product of each column is equal, therefore,

b*5 = 60

b = 60 ÷ 5 = 12

c*6 = 60

c = 60 ÷ 6 = 10

Since the sum of each column are equal, therefore,

12 + 10 + a = 5 + 6 + d

22 + a = 11 + d

Think of a number you can add to 22, and another number you can add to 11, which will make both sides equal. Add both numbers, whenmultiplied together should give you 60.

Factors of 60 are:

(a, d)

(1, 60) => 22 + a = 11 + d => 22+1 = 11+60 (incorrect)

(2, 30) => 22 + a = 11 + d => 22+2 = 11+30 (incorrect)

(3, 20) => 22 + a = 11 + d => 22+3 = 21+20 (incorrect)

(4, 15) => 22 + a = 11 + d => 22+4 = 11+15 => 26 = 26 [CORRECT]

(5, 12) => 22 + a = 11 + d => 22+5 = 11+12 (incorrect)

(6, 10) => 22 + a = 11 + d => 22+6 = 11+10 (incorrect)

Therefore,

a = 4,

d = 15

6 0
4 years ago
F(x)=kx+6 and find f(2)=16 find f(4)
Vikentia [17]

Answer:

f(4)=26

Step-by-step explanation:

f(2)=16

F(x) = kx+6

16=k(2)+6

16-6=k(2)

10=k(2)

<u>10</u> =<u>k(</u><u>2</u><u>)</u>

2 2

5= k

f(4)=k(4)+6

=5(4)+6

=20+6

f(4)=26

5 0
2 years ago
How do you factor this polynomial as a product of more than two factors?<br> x3+8x2+15x
umka21 [38]
x^3+8x^2+15x =\\&#10;x(x^2+8x+15)=\\&#10;x(x^2+3x+5x+15)=\\&#10;x(x(x+3)+5(x+3))=\\&#10;x(x+5)(x+3)&#10;
7 0
3 years ago
Write the monomial in standard form. name it's coefficient and identify its degree.
Hunter-Best [27]

Answer:

Standard\ Form = {3n^2} m^{-2}

Step-by-step explanation:

Given

\frac{2}{3m^2n} * 4.5n^3

Required

Write in Standard Form

To start with; the two monomials have to be multiplied together;

\frac{2}{3m^2n} * 4.5n^3

Standard\ Form = \frac{2 * 4.5n^3}{3m^2n}

Split the numerator and the denominator

Standard\ Form = \frac{2 * 4.5 * n^3}{3 * m^2 * n}

Multiply Like terms

Standard\ Form = \frac{9 * n^3}{3 * m^2 * n}

Divide 9 by 3 to give 3

Standard\ Form = \frac{3 * n^3}{m^2 * n}

Divide n³ by n to n²

Standard\ Form = \frac{3 * n^2}{m^2 }

Split fraction

Standard\ Form = {3 * n^2} * \frac{1}{m^2 }

From laws of indices;

\frac{1}{a^n} = a^{-n}

Standard\ Form = {3 * n^2} * \frac{1}{m^2 } becomes

Standard\ Form = {3 * n^2} * m^{-2}

Multiply all together

Standard\ Form = {3n^2} m^{-2}

5 0
3 years ago
200 divided by 5.50 is what because if one hour is 5.50 and you need 200 how many hours do you work
Phoenix [80]

Answer:

if you divided 200 by 5.50 the answer will be 36.3636363636

8 0
3 years ago
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