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3 years ago

Factor this expression. x2 + 9x + 16

Mathematics

1 answer:

Alexxandr [17]3 years ago

3 0

Answer:

Read below.

Step-by-step explanation:

Hey there, grab your solution:

x²+9x+16=0

Sqrt(D)=sqrt(17)

So x is:

(-9+sqrt(17))/2

And (-9-sqrt(17))/2

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-x+ y = 12 x-2y=3 Please help

grigory [225]

Answer:

x=-27, y=-15

Step-by-step explanation:

In the attached file

7 0

2 years ago

Read 2 more answers

On its municipal website, the city of Tulsa states that the rate it charges per 5 CCF of residential water is $21.62. How do the

Daniel [21]

Answer:

hello your question is incomplete attached below is the complete question

answer :

H0 : u = 21.62 ( Null hypothesis )

H1 : u = 21.62 ( alternative hypothesis )

Step-by-step explanation:

Formulating hypothesis that can be used to determine whether the population mean rate at 5 CCF of residential water discharged by U.S public utilities differs from $21.62

H0 : u = 21.62 ( Null hypothesis )

H1 : u = 21.62 ( alternative hypothesis )

3 0

3 years ago

Expressed as a product of its prime factors in index form, a number N is

Elena-2011 [213]

ANSWER

$5N^2=3^{2} \times 5^{5} \times x^{6}$

EXPLANATION

$N=3\times5^2 \times x^3$ .

$5N^2=5(3\times5^2 \times x^3)^2$

Recall this property of exponents;

$(a^m)^2=a^{m} \times a^m$

So our product becomes;

$5N^2=5(3\times5^2 \times x^3) \times (3\times5^2 \times x^3)$

$5N^2=5\times 3\times 3 \times 5^2 \times 5^2 \times x^3 \times x^3$

$5N^2=3\times 3\times 5 \times 5^2 \times 5^2 \times x^3 \times x^3$

Recall this law of exponents:

$a^m \times a^n =a ^{m+n}$

$5N^2=3^{1+1} \times 5^{1+2+2} \times x^{3+3}$

$5N^2=3^{2} \times 5^{5} \times x^{6}$

7 0

3 years ago

Explanation plz help plz

marishachu [46]

What a the question I’m confused!!!

6 0

3 years ago

∠BAD is bisected by . If m∠BAC = 2x - 5 and m∠CAD = 145, the value of x is:

Ymorist [56]

Answer:

x = 75

Step-by-step explanation:

Assuming the angles are equal ( bisected means divided in half)

2x-5 = 145

Add 5 to each side

2x-5+5 = 145+5

2x = 150

Divide by 2

2x/150/2

x = 75

4 0

2 years ago