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2 years ago

Factorise each of the following a2+9a+8

Mathematics

2 answers:

Tanzania [10]2 years ago

8 0

Answer:

Step-by-step explanation:

I suppose the expression is this $a^2+9a+8.$

We can factor out this expression ( Remember, find two numbers that the sum is 9 and the product is 8. The numbers are 8 and 1)

$a^2+9a+8=(a+1)(a+8)$

Stella [2.4K]2 years ago

5 0

Answer:

well.. according to my calculation this was the factors that are Angles there are 50 Angles and 32 factors so the answer is ×÷=357_/ 97_/^23*32/##_ 23/ 1/2 3÷214

so that was the answer!

Step-by-step explanation:

Hope you understand this explanation!!and it may help!!

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Find the six trigonometric function values for angle ∅ where its adjacent side is -9 and its hypotenuse is 41. (Theta is located

arsen [322]

Check the picture below.

$\bf \textit{using the pythagorean theorem}
\\\\
c^2=a^2+b^2\implies \sqrt{c^2-a^2}=b
\qquad 
\begin{cases}
c=hypotenuse\\
a=adjacent\\
b=opposite\\
\end{cases}
\\\\\\
\sqrt{41^2-(-9)^2}=b\implies \sqrt{1681-81}=b\\\\\\ \sqrt{1600}=b\implies 40=b\\\\
-------------------------------$

$\bf sin(\theta )=\cfrac{\stackrel{opposite}{40}}{\stackrel{hypotenuse}{41}}\qquad~~ cos(\theta )=\cfrac{\stackrel{adjacent}{-9}}{\stackrel{hypotenuse}{41}}\qquad~~ tan(\theta )=\cfrac{\stackrel{opposite}{40}}{\stackrel{adjacent}{-9}}
\\\\\\
csc(\theta )=\cfrac{\stackrel{hypotenuse}{41}}{\stackrel{opposite}{40}}\qquad ~~sec(\theta )=\cfrac{\stackrel{hypotenuse}{41}}{\stackrel{adjacent}{-9}}\qquad ~~cot(\theta )=\cfrac{\stackrel{adjacent}{-9}}{\stackrel{opposite}{40}}$

3 0

3 years ago

The difference between two numbers is 15. If 8 is added to twice the greater number, the result is 4 less than 3 times the lesse

SashulF [63]

<h3>The value of the larger number, x, is 57.</h3><h3>The value of the smaller number, y, is equal to 42.</h3>

x - y = 15

2x + 8 = 3y - 4

We can quickly get a temporary value for x by altering the original equation.

x - y = 15

Add y to both sides.

x = 15 + y

Now that we have a value of x, we can find the exact value of y.

2(15 + y) + 8 = 3y - 4

Distributive property.

30 + 2y + 8 = 3y - 4

Combine like terms.

38 + 2y = 3y - 4

Subtract 2y from both sides.

38 = y - 4

Add 4 to both sides.

y = 42

Now that we know the exact value of y, we can plug it back into the original equation.

x - 42 = 15

Add 42 to both sides.

x = 57

8 0

2 years ago

Which is the correct answer? A) 3.41 m B) 2.29 m C) 1.59 m D) 2.71 m

PtichkaEL [24]

Answer:

its b or c ( im not for sure tho)

Step-by-step explanation:

5 0

2 years ago

One of the giraffes, Bernard, is sick. Last week he weighed 2,490 pounds. This week, he weighs 2,312 pounds.

maks197457 [2]

Answer:

w+2,312=2,490

w= 178 pounds

Step-by-step explanation:

Let

W—-^ the amount of weight Bernard lost in pounds

We know that

The amount of weight Bernard lost plus the weight of this week must be equal to the weight of the last week

So…

The linear equation that represents this situation is

w=2,312=2,490

solve for w

Subtract 2,490 - 2,312 = 178lbs

If you found this helpful please let me know! I’m always striving to improve my answers! Have a wonderful day!

6 0

2 years ago

Read 2 more answers

Hellp! Which expression is Equal (see photo) pls explain

ad-work [718]

Answer:

The answer to your question is: the third option is correct 6√5 / 5

Step-by-step explanation:

6 / √5

6 x √5 = 6√5

√5 x √5 5

or 6√5 / 5

6 0

3 years ago

Read 2 more answers