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3 years ago

4(3r+2)-3r= -10? need help thanks

Mathematics

2 answers:

Leto [7]3 years ago

6 0

Answer: -2

Step-by-step explanation:

DanielleElmas [232]3 years ago

5 0

Answer:

-2

Step-by-step explanation:

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What is the product of all constants $k$ such that the quadratic $x^2 + kx +15$ can be factored in the form $(x+a)(x+b)$, where

Setler79 [48]

Answer:

$k=-16,k=-8,k=8,k=16$

Step-by-step explanation:

We are given quadratic equations as

$x^2+kx+15$

and it can be factored as

$=(x+a)(x+b)$

now, we can multiply factor term

$(x+a)(x+b)=x^2+(a+b)x+ab$

now, we can compare

$x^2+(a+b)x+ab=x^2+kx+15$

so, we get

$k=a+b$

$ab=15$

we are given that

'a' and 'b' are integers

so, we can find all possible factors

$15=(-1\times -15),(1\times 15)$

$15=(-3\times -5),(3\times 5)$

so, we can find k

At $(-1\times -15)$ :

$k=a+b$

we can plug values

$k=-1-15$

$k=-16$

At $(1\times 15)$ :

$k=a+b$

we can plug values

$k=1+15$

$k=16$

At $(-3\times -5)$ :

$k=a+b$

we can plug values

$k=-3-5$

$k=-8$

At $(3\times 5)$ :

$k=a+b$

we can plug values

$k=3+5$

$k=8$

So, values of k are

$k=-16,k=-8,k=8,k=16$

6 0

3 years ago

Let f(x) = 1/x. Find a number b so that the average rate of change of f on the interval

Bezzdna [24]

Answer:

huh try multiplying

Step-by-step explanation:

6 0

3 years ago

(1 pt) Which answer is the same as moving the decimal in 6.73 three places to the left? A. dividing 6.73 by 103 B. dividing 6.73

zalisa [80]

D. because when you multiply you move your numbers to the left and 1000 has 3 zeros meaning you will move your answer 3 times to the left .

hope you understand
good luck with your homework

4 0

3 years ago

Read 2 more answers

Solve for x

alex41 [277]

Answer:

10x + 50 =1 +5

10x=6-50

10x=-44

x=-4.4

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

Please help answer need help pllllease

Natalka [10]

The answer is 24 I think

3 0

3 years ago