Consider the function f(x)= – 8x^2+ 1x – 14
Evaluate f( - 13)

Area of triangle = 1/2 x base x height

Area of the triangle = 1/2 x 22 x 18 = 198 square m.

Area of semi circle = 1/2 x PI x r^2

Area of semi circle = 1/2 x 3.14 x 11^2 = 189.97 square m.

Total area = 198 + 189.97 = 387.97 square m.

Round up to 388 square m.

Answer:

9

Step-by-step explanation:

5, 8, 9, 9, 9, 10

(9+9)/2=9

Answer:

3n

5,10,8,9,9,9

= 5 , 1 , 0

5-1=4 - 1 3

Answer:

where's the question?

Step-by-step explanation:

carry on laern

So first we have to find equation form angles.

Statement :- The measure of the second angle of a triangle is 20 more than the measure of the first.

Equation :-

second angle = 20 + x

{ Remember people get's confused when to multiply and when to add. when ever there "more than" then we will add and when there is ,"times" we will multiply}

Statement :-

the third angle is 10 less than three times the first

Now just see first less means we have to subtract 10 from 3 times the first means 3 × first angle.

Equation :-

third angle = 3x - 10

Now let's represent :-

We know sum of angles of triangle is equal to 180°

So :-

Measure of angles :-

[tex]\bold{\huge{\underline{ Solution }}}[/tex]

Let the first angle be x

According to the question,

[ 2nd angle is 20 more than the first angle ]

[ 3rd angle is 10 less than thrice times the first angle ]

By using Angle sum property

That is,

[tex]\sf{ x + ( x + 20) + ( 3x - 10) = 180{\degree}}[/tex]

[tex]\sf{ x + x + 20 + 3x - 10 = 180{\degree}}[/tex]

[tex]\sf{ 5x + 10 = 180{\degree}}[/tex]

[tex]\sf{ 5x = 180 - 10}[/tex]

[tex]\sf{ 5x = 170}[/tex]

[tex]\sf{ x = }{\sf{\dfrac{ 170}{5}}}[/tex]

[tex]\sf{ x = }{\sf{\cancel{\dfrac{ 170}{5}}}}[/tex]

[tex]\bold{ x = 34{\degree}}[/tex]

Thus,

Hence, The three angles of the given triangle are 34° , 54° and 92°

[tex]\bold{\huge{\underline{ Verification }}}[/tex]

Here, we have

By using Angle sum property :-

[tex]\sf{ 34 + 54 + 92 = 180{\degree}}[/tex]

[tex]\sf{ 88 + 92 = 180{\degree}}[/tex]

[tex]\sf{ 180 = 180{\degree}}[/tex]

[tex]\bold{ LHS = RHS }[/tex]

Hence, Verified

Answer: 2+(-3/5) = 1.4

Step-by-step explanation: Remember work what is in the parentheses first!

Simplify the expression.

Exact Form: 7/4

Decimal Form: 1.4

Mixed Number Form: 1 2/5

Answer:

[tex]\frac{7}{5}[/tex]

Step-by-step explanation:

Equation: [tex]2-\frac{3}{5}[/tex]

1). Convert to fraction: [tex]\frac{2*5}{5}-\frac{3}{5}[/tex]

2). Same denominators = combine fractions

[tex]\frac{(2*5)-3}{5}=\frac{7}{5}[/tex]

Step-by-step explanation:

Find the slopes of the lines and compare. The lines intersect if slopes are different.

Slopes are

Slopes are same, lines are parallel

Slopes are

Lines intersect as slopes are different

Slopes must not be equal to get intersection

#1

For first line

For second

No,Parallel

#2

First

Second

Yes, Intersect

Answer: D. Subtraction property of equality

Step-by-step explanation:

They are subtracting 6 from both sides of the equality.

Answer:

235 miles per hour and 2,115 miles in 9 hours

Step-by-step explanation:

First determine how many miles the jet files in one hour:

470/2 =235 miles/hour

We want to know how many hours the jet could fly in 9 hours, so we multiply this value by 9.

235 x 9 = 2115 miles

Therefore, the jet could fly 2115 miles in 9 hours.

hope this helps! sorry if it didnt

Answer:

x<−5

Step-by-step explanation:

Let's solve your inequality step-by-step.

−4x+10>5x+55

Step 1: Subtract 5x from both sides.

−4x+10−5x>5x+55−5x

−9x+10>55

Step 2: Subtract 10 from both sides.

−9x+10−10>55−10

−9x>45

Step 3: Divide both sides by -9.

−9x

−9

>

45

−9

x<−5

Answer: See attached images

Step-by-step explanation:

For third period:

Minimum = 67

1st Quartile: 79.5

Median/2nd Quartile: 85

3rd Quartile: 90.5

Maximum = 99

I've attached the image for this class's box plot.

For Sixth Period:

Minimum = 70

1st Quartile: 79.5

Median/2nd Quartile: 88

3rd Quartile: 90.5

Maximum = 95

I've also attached the image for this class's box plot

Answer:

No.

Step-by-step explanation:

1/4 is equivalent to 2/8, but not with 1/8.

Answer:

No.

Step-by-step explanation:

To find equivalent fractions, multiply the numerator and denominator by the same number.

Start with 1/4.

Multiply the numerator and denominator by 2.

You get 2/8.

2/8 is an equivalent fraction to 1/4.

2/8 and 1/8 are not equivalent.

Answer: No.

Given:

A race car game takes 6 points from a player each time the player hits a cone.

To find:

The integer which represents the change in total points if the player hits 10 cones.

Solution:

According to the given information,

1 hit = -6 points

Here, negative sign represents the reduction in points after hitting a cone.

If the player hits 10 cones.

(1 × 10) hit = (-6 × 10) points

10 hit = -60 points

So, the change in total points if the player hits 10 cones is -60.

Therefore, the required integer is -60.

Answer: 60

Step-by-step explanation:

based on the given conditions, formulate: 

 Calculate the product or quotient: 60

get the result Answer: 60

Good luck

Answer:

17=x

Step-by-step explanation:

In this case, we need to use Vertical Angles Theorem to solve this problem. Basically, because of the position of the angles, they are congruent.

68-x = 3x

Add x to both sides

68=4x

Divide by 4

17=x

Hope this helps!

Answer:

The value of 'x' is: 17°

Step-by-step explanation:

From what is being shown, there are two angles that are given:

(68 - x)°

3x°

Since they are congruent angles, meaning they are equal to each other, they will be put into a(n) equation such like shown below:

(68 - x)° = 3x°

(Then remove the parenthesis)

68° - x° = 3x°

     + x°=+3x°

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

68° = 4x°

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

(Divide both sides by 4)

[tex]\frac{68}{4} = \frac{4x}{4}[/tex]

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

17° = x

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

Your value of 'x' is 17.

Answer:

The answer is C.

Check the picture below, so the shaded area is really just the area of one quarter of a circle's area with a radius of 7, and a triangle whose base is 7 and height is 7, so let's simply sum both of them up.

[tex]\stackrel{\textit{\Large Areas}}{\stackrel{\textit{quarter of a circle}}{\cfrac{1}{4}(\pi)(7)^2}~~ + ~~\stackrel{triangle}{\cfrac{1}{2}(7)(7)}}\implies \cfrac{49\pi }{4}~~ + ~~\cfrac{49}{2}~~ \approx~~63.0[/tex]

Answer:

75

Step-by-step explanation:

an arc is half a circle

Answer/Step-by-step explanation:

Given that a student wrote the following equation:

[tex] 2(n + 3) = 2n + 3 [/tex]

Looking at the expression on both sides, they don't seem equal. To be sure, use any value to represent "n" in the equation. Then, simply. If what you have on your left is equal to what you have in your right, then the equation is TRUE. If otherwise, it is FALSE.

Let n = 2

[tex] 2(n + 3) = 2n + 3 [/tex]

[tex] 2n + 6 = 2n + 3 [/tex]

Plug in the value of n

[tex] 2(2) + 6 = 2(2) + 3 [/tex]

[tex] 4 + 6 = 4 + 3 [/tex]

[tex] 10 = 7 [/tex]

This is not FALSE. 10 ≠ 7.

Therefore, the equation written by the student is FALSE.

Answer:

Step-by-step explanation:

y-y1 = m (x-x1), where (x1,y1) is the point the line passes through and m is the slope

y-(-1) = 2 (x-3)

y+1 = 2x - 6

Answer:

7 times $8 = 56

Step-by-step explanation:

Question 1:

So, we are going to multiply 7 by $8.

If Brandie earns 8 dollars an hour, then we can multiply 8 by 7 to find out how much money Brandie earns in 7 hours.

Now multiply 8 by 7.

8 * 7 = 56

The independent variable is the hours. The hours can change, but this affects what the dependent result is.

The amount of money stays the same.

The dependent variable is the result, which is the total amount of money earned.

Hope this helps!

Answer:

1.844

Step-by-step explanation:

easyy

Step-by-step explanation:

so <A=<B

Hope it helps

for any question comment me ❤❤❤

Answer:

$95

Step-by-step explanation:

Step one: Multiply the number of shirts and cost of the shirt. Which is $45.

Step two: Add the shipping fee ($50) to $45

Step three: After adding those you should get $95 as your answer.

*Sorry if I'm incorrect*

Answer:

1000 tiles required.

explanation:

Tiles dimension:

Floor dimension:

Area of floor:

Length * Width

50 * 40

2000 m²

Area of each tile:

Length * Width

1 * 2

2 m²

Number of tiles required = Area of floor ÷ Area of each tile

→ tiles = 2000/2

→ tiles = 1000

See below.

1000

area of rectangle = width x length

Given: width of floor = 40 m length of floor = 50 m ⇒ area of floor = 40 x 50 = 2000 m²

width of tile = 1 m length of tile = 2 m ⇒ area of tile = 1 x 2 = 2 m² Number of tiles needed = area of floor ÷ area of one tile                                        = 2000 ÷ 2                                        = 1000

I tried.

Answer:

The number line that shows x > 8

Step-by-step explanation:

First, subtract 15 from both sides

15 + 2x -15 > 31

2x > 16

Then divide both sides by 2

2x ÷ 2 > 16 ÷ 2

x > 8

The answer is:

x > 8

Work/explanation:

To solve this inequality, we need to isolate x.

So first, I subtract 15 on each side:

[tex]\sf{2x > 31-15}[/tex]

[tex]\sf{2x > 16}[/tex]

Now, divide each side by 2:

[tex]\sf{x > 8}[/tex]

Answer:

I think 24 weeks that's my answer

Answer:

A-$1.65

Step-by-step explanation:

You multiply 1.25 by 4 because each brother bought a bag of chips. Then you subtract that by the total and get $13.20 you divide that by 8 hot dog because each brother got 2 hot dogs. By dividing 8 by the  left over amount from subtracting the chips you get how much each hot dog is worth.

Answer:

Step-by-step explanation:

Very simple, if the total was $12.65, and they included a 15% tip, so we do 12.65 *15%=1.8975

So we subtract that by 12.65 and our answer is approximately $10.75

Answer:

The Correct Answer Is : 11

Step-by-step explanation:

I Just Took The Test