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3 years ago

What is r squared+7r+6=0

Mathematics

1 answer:

Firlakuza [10]3 years ago

7 0

Answer:

r = -6, -1

Step-by-step explanation:

r^2 + 7r+6 =0

Factor

What 2 numbers multiply to 6 and add to 7

6*1 =6

6+1 =7

(r+6) (r+1) =0

Using the zero product property

r+6 =0 r+1 =0

r = -6 r=-1

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Find the midpoint of the following two coordinates: Please helppp

weqwewe [10]

Answer:

C. (4, 3)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Coordinates (x, y)
Midpoint Formula: $\displaystyle (\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})$

Step-by-step explanation:

Step 1: Define

Point (3, 1)

Point (5, 5)

Step 2: Find Midpoint

Simply plug in your coordinates into the midpoint formula to find midpoint

Substitute in points [Midpoint Formula]: $\displaystyle (\frac{3+5}{2},\frac{1+5}{2})$
[Fraction] Add: $\displaystyle (\frac{8}{2},\frac{6}{2})$
[Fraction] Divide: $\displaystyle (4,3)$

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3 years ago

Seventy minus the product of 8 and a number is 86 as an equation

Alinara [238K]

Hey there!!

Let us take the number as ' x '

7 - 8x = 56

-8x = 49

x = -49/8

Hope helps!

7 0

3 years ago

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If the price of a 7-pound bag of dried black beans is $9.80. which of the following statements is

tankabanditka [31]

Where is the Satements?

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4 years ago

Which of the following is true regarding the solution to the logarithmic equation below?

lidiya [134]

Answer:

Option C.

Step-by-step explanation:

Note: It is given question and option "=" sing is missing. On some places it should be "=" instead of "=".

Consider the given equation is

$\log_2(x+11)=4$

Using properties of \logarithm we get

$(x+11)=2^4$ $[\because \log_ax=b\Leftightarrow x=a^b]$

$x+11=16$

$x=16-11$

$x=5$

The solution is x=5.

To check the solution, substitute x=5 in the given equation.

$\log_2(5+11)=4$

$\log_2(16)=4$

$\log_22^4=4$

$4=4$

$LHS=RHS$

Therefore, x-5 is a true solution because $\log_2(16)=4$ .

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3 years ago

Which statement about this system of equations is true?

Mademuasel [1]

Answer:

A the system has no solution

Step-by-step explanation:

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3 years ago

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