the base of a triangle is 13cm and its height is 5cm. what is the area of the triangle

Answer:

Step-by-step explanation:

I think it the choice of A and D

Answer:

The correct answer is -9, 36, -9/2

Step-by-step explanation:

The solution for the given expression is: [tex]\frac{-1+ i*\sqrt{19} }{2}[/tex] and [tex]\frac{-1- i*\sqrt{19} }{2}[/tex].

The quadratic function can represent a quadratic equation in the Standard form: ax²+bx+c=0 where: a, b and c are your respective coefficients. In the quadratic function the coefficient "a" must be different than zero (a≠0) and the degree of the function must be equal to 2.

For solving a quadratic function you should find the discriminant: D=b²-4ac and after that use this variable in the formula: [tex]x=\frac{-b\pm \sqrt{D} }{2a}[/tex]

The properties of multiplication are:

Here, you should apply the distributive property for solving this expression.

x*(2x)+2*(x+5) = 2x²+2x+10

After that, you should solve the previous quadratic equation.

D=b²-4ac=4-4*2*10=4-80= -76

Then,

[tex]x_{1,2}=\frac{-2\pm \sqrt{-76} }{2*2}=\frac{-2\pm i*\sqrt{76} }{4}=\frac{-2\pm i*2\sqrt{19} }{4}=\frac{-1\pm i*\sqrt{19} }{2}[/tex]

Read more about the quadratic function here:

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at first..we need to find the value of one neil....

1 neil=510/10

=17

Therefore..one neil=17 g...

Now;

48 neil= 17×48

=816

Hence; The mass of 48 Neil's is 816...

hope this will help u

Answer:

0.5 is correct answer hope it helps

Answer:

9 units

12×3/4

plss mark brainliesttt

Answer:

Option D is correct

Step-by-step explanation:

Statement 1

Average weight of 3 dogs = 55 pounds

Total weight of 3 dogs = 55 × 3

Total weight of 3 dogs = 165 pound

Statement 2

Average weight of 5 cats = 9 pounds

Total weight of 5 cats = 9 × 5

Total weight of 5 cats = 45 pounds

New Average = 165 + 45/8

New Average = 210/8

New Average = 26.25 pounds

Answer:

D 26.25

Step-by-step explanation:

55× 3 + 9×5 = 210

210 ÷ 8 = 26.25

Distance between first tree and last tree is 140m .

And distance between each tree (d) = 5 m

let's solve for number of trees (n) :

[tex] \hookrightarrow \: (n - 1)d = 140[/tex]

[tex] \hookrightarrow \: (n - 1)5 = 140[/tex]

[tex] \hookrightarrow \: n - 1 = \dfrac{140}{5} [/tex]

[tex] \hookrightarrow \: n = 28 + 1[/tex]

[tex] \hookrightarrow \: n = 29[/tex]

hence, total number of trees = 29.

Hello!

The slope equation is y = mx + b

mx is the slope and b is the yintercept.

4. y= -3x + 5

See where I put the slope and y intercept above?

Those are where the numbers go in that equation.

5. 3x + y = 5

The standard for equation is: Ax + by = c

y = -3x + 5

we need to make the equation look like the standard form equation.

y = -3x + 5

lets add 3x to both sides

The answer is 3x + y = 5

6. m = [tex]\frac{3}{2}[/tex]

We need to use this formula: [tex]m=\frac{y2-y1}{x2-x1} \\\\\\[/tex]

The points said are: (2, 5) and (4, 8)

[tex]m=\frac{8-5}{4-2}[/tex]

m = 3/2

M is the slope.

---------------

I hope this helps,

Have a great day!!

Answer:

Where is the question?????

Answer: 64

Step-by-step explanation: 4160/65                                                                     64

Answer:

6 Cubed

=

216

Step-by-step explanation:

6 Cubed

=

216

Answer: 6 Cubed= 216

Step-by-step explanation:

Answer:

A) 1.25 inches

B) 2 inches

C) 3 inches

Step-by-step explanation:

[tex]\frac{d}{4}[/tex] + [tex]\frac{1}{2}[/tex] = [tex]\frac{d}{4}[/tex] + [tex]\frac{2}{4}[/tex] = [tex]\frac{d+2}{4}[/tex]

A) 3

[tex]\frac{d+2}{4}[/tex] = [tex]\frac{3+2}{4}[/tex] = 5/4 = 1.25

B) 6

[tex]\frac{d+2}{4}[/tex] = [tex]\frac{6+2}{4}[/tex] = 8/4 = 2

C) 10

[tex]\frac{d+2}{4}[/tex] = [tex]\frac{10+2}{4}[/tex] = 12/4 = 3

To find the distance between those two points you would need to

do, -6 - (8), which is -14, and than take away the minus sign, and the length of AB is 14 units.

Answer:

14 = AB

Step-by-step explanation:

When finding length, absolute value is the way to go! So if A is -6 and b is 8, then we need to find the distance between them. You can physically count on a number line like I see you did, which would be -5,-4,-3,-2,-1,0,1,2,3,4,5,6,7,8=14 numbers

or you can set up the expression---

| -6-8 |

which equals

| -14 |

or

14

because 14 is the same as | -14 |

Answer:

As the question states - it's just a different notation to express the same thing.

When you represent a set with set notation, you look for a characteristic that identifies the elements of your set. For example, if you want to describe the set of all number greater than  

2

and less than  

10

, you write

{

x

∈

R

∣

2

<

x

<

10

}

Which you read as "All the real number  

x

(

x

∈

R

) such that (the symbol "|")  

x

is between  

2

and  

10

(

2

<

x

<

10

)

On the other hand, if you want to represent the set with interval notation, you need to know the upper and lower bound of the set, or possibly the upper and lower bound of all the intervals that compose the set.

For example, if your set is composed by all the numbers smaller than  

5

, or between  

10

and  

20

, or greater than  

100

, you write the following union of intervals:

(

−

∞

,

5

)

∪

(

10

,

20

)

∪

(

100

,

∞

)

This same set can be written in set notation:

{

x

∈

R

∣

x

<

5

or  

10

<

x

<

20

or  

x

>

100

}

Finally, note that if the characterization of the set is rather complex, the set notation becomes preferable to the interval one, which would require a great number of intervals in the union. In some other cases, it could be literally impossible to write a set in interval notation, for example is you consider only irrational numbers, you write

{

x

∈

R

∣

x

∉

Q

}

but you can't write is as union of intervals.

See explanation below

Step-by-step explanation:

Imagine we have to express  

[

a

,

b

]

in set notation

A

=

[

a

,

b

]

, then  

A

=

{

x

∈

R

/

a

≤

x

≤

b

}

In this notation we define the characteristics of all  

x

belonging to this set  

A

…x must be greater or equal to a and simultaneously smaller or equal to b...

Interval notation is other way to say the same but assuming that  

[

means the extreme a is IN the interval and  

(

means extreme  

a

is not.

I Hope This Helps.

Answer:

13% increase.

Step-by-step explanation:

24000 x .13 is 3120.

Add those and get 27120.

Hope this helps.

Brainliest would be appreciated

Answer:

Solution

=−5 that is the answer im positive

Step-by-step explanation:

4-2x+14=3x+15

-2x-3x=18+15

-5x=33

x=33/-5

Answer:

The answer is 16

Step-by-step explanation:

So at first we need to convert 8 feet to inch.By doing so you will get 96.After that you need to divide the answer that is 96 by 6.Doing so you will get 16.

So basically the answer is 16.

I hope this helps....

Answer:

7x + 3

Step-by-step explanation:

old - new =

(4x**2 + 7x + 3) - (4x**2) = 7x + 3

Answer:

If you have to solve for v, it's v<-1

interval notation: (- ∞, -1)

Step-by-step explanation:

Answer:

102,300.

Step-by-step explanation:

102,00 + 300

= 102,300.

Answer:

7) 1.45

8) -2.3

9) -115

10) -213

11) -4

12) 150

hope it helps

answer will be 2÷18=9

and the answer is 9

please mark this answer as brainlist

Answer: b < -15/13 or b ≥ 4/7

Step-by-step explanation:

-13b - 12 > 3 can be simplified to -13b > 15 through subtraction. Then, dividing by a negative number flips the greater than sign to a less than, so you get b < -15/13 .

The other equation can be solved in the same way. 14b ≥ 8 is found through addition; and dividing by a positive number doesn't flip the greater than or equal to sign, so you end up with b ≥ 8/14, which simplifies to b ≥ 4/7.

These solutions diverge, or go in opposite directions: one is a less than equation, and the other a greater than, so you're looking for an answer with an 'or' in between them. Therefore, you can eliminate the answers on the top left and bottom right, which converge.

You can also eliminate the answer on the top right, because it has a less than or equals to symbol in the b < -15/13 equation where it's supposed to be a simple < symbol.