I need help with this plz

Step-by-step explanation:

Since it is a right-angled triangle,

we have a² + 5² = 13². (Pythagoras' Theorem)

=> a² = 13² - 5² = 144, a = 12. (C)

Answer:

the solution for x²+2x+8<0

Answer:

subtract 14 from each side

7=7x

x=1

Step-by-step explanation:

plz brainliest!

The required solution to the equation 21 = 14 + 7x is x = 1.

An equation is a mathematical statement that shows the equality between two expressions. It consists of an equal sign (=) separating the two sides of the equation.

To solve for x, we can first subtract 14 from both sides of the equation:

21 - 14 = 14 + 7x - 14

Simplifying:

7 = 7x

Next, divide both sides of the equation by 7:

7/7 = 7x/7

1 = x

Therefore, the solution to the equation 21 = 14 + 7x is x = 1.

Learn more about equations here:

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#SPJ6

Answer:

4

Step-by-step explanation:

Jimmy is eating appetizers that

have 120 calories each. He only

plans to eat 550 calories overall.

Write an inequality and determine

the most appetizers he can eat

without exceeding the limit.

He can eat 4.

Answer:

he can buy 5 quarts of milk

Step-by-step explanation:

Answer:

Step-by-step explanation:

2

+

2

+

9

2q+2+9

2q+2+9

Simplify

1

Add the numbers

2

+

2

+

9

2

+

1

1

Solution

2

+

1

1

Answer:

point form: (-2,7)

equation form: X = -2, Y = 7

Answer:

Answer:

11c−9d−3

Step-by-step explanation:

9c−8d+2c−6−d+3

=9c+−8d+2c+−6+−d+3

=9c+−8d+2c+−6+−d+3

=(9c+2c)+(−8d+−d)+(−6+3)

=11c+−9d+−3

Answer--

=11c−9d−3

Answer:

the equation y= ax represents direct variation between x and y is said to vary directly with x. the nonzero constant a is called the constant of variation.

Step-by-step explanation:

I'm not sure if that's what you were asking for but there .

brainiest please.

Answer:

0.333n + 28 ; 33.3 ; $41.653

Step-by-step explanation:

For the best fit line :

The slope of the graph :

Drawing a right angled triangle at any point on the best fit line :

Gradient = (y2 - y1) / (x2 - x1)

Gradient = (45 - 30) / (50 - 5)

Gradient = 15 / 45

Gradient = 0.333

Intercept :

Where best fit line crosses the y - axis = 28

b = 0.333n + 28

The extra cost of each extra call made made is the slope of the graph :

$0.333 = 33.3 cents

Estimated cost of 41 calls

b = 0.333(41) + 28

b = $41.653

Kindly note that, the values used were obtained from a graph which isn't lined, therefore values taken may not be very accurate.

Answer:

8

Step-by-step explanation:

25-17

thanks me later

Answer:

$23.31

Step-by-step explanation:

$21 x 1.11 = $23.31

Answer:

B

Step-by-step explanation:

The slope is 4/1 which equals 4

the y int is 2

this gives us 4x+2

the line is dotted which mean there is no equal sign with the inequality

The shaded area is above the line, meaning y is greater

Answer:

27 years old

Step-by-step explanation:

Let Alvin's age be x and Elga's age is y:

y - x = 15

x + y = 27

2y = 42 (use elimination method)

y = 21

x = 6 (plug it back into either equation)

Therefore Alvin is 6 and Elga is 27

Answer:

duh

Step-by-step explanation:

bc it’s not

Answer:

-2

Step-by-step explanation:

2(8) - 3(6)

16 -18 = -2

Answer:

-2

Step-by-step explanation:

If y = 8, then 2y = 8 times two, so 2y = 16

If k = 6 then 3k = 6 times 3, so 3k = 18

16 - 18 = -2

Hope this helps :)

Answer:

11.5

Step-by-step explanation:

Answer:

20% because if there's six different chocolates she likes and if she picks random thers a possibility of it

Hey there!

The answer to your question is £1729.

To solve this equation, first we find how much is left. 100% - 9% = 91 %. That means that the new price is 91% of the old price. So, we can do 0.91 x 1900, and we get 1729.

Therefore, the new price is  £1729.

Hope it helps! Have a great day, and good luck!

A holiday costs £1900.The price after a 9% discount is £1729

For better understanding , check the calcualtion to find out price after discount below.

A holiday costs £1900. we need to find out the price after a 9% discount

We are given with 9% discount. find out the discount amount from the cost .

Discount amount = original cost * the discount percentage

discount amount

[tex]1900 \cdot 9percent\\\\1900 \cdot \frac{9}{100} \\171[/tex]

Discount amount is £171

Now subtract the discount amount from the original cost

Final cost after discount is

[tex]1900 - 171 \\1729[/tex]

A holiday costs £1900.The price after a 9% discount is £1729

Learn more information about 'Discount' here

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Answer:

y=4-3x/2

Step-by-step explanation:

move 3x to the other side by subtracting 3x on both sides

2y=8-3x

divide by 2 on both sides:

y=4-3x/2

Answer:

3%percent of $375 is $11.25 and 20% of $56.25 is $11.25 .

Step-by-step explanation:

Answer:

4 feet 11 inches

Step-by-step explanation:

all you need to do is see how many groups of 12 is in 59

its 4 because 5 times 12 is 60

12 times 4 is 48

59-48= 11

4 feet 11 inches

Brainliest would be appreciated!

Answer:

discrete

explanation:

Continuous keeps going but for blood pressure it has to stay in a certain zone.

Answer:

length of arc=80/360×2πr

88×360=80×2×22/7×r

31680×7/(80×2×22)=r

r=221760/3520=63

diameter=2r=2×63=126

x^2+2x-24 is the correct answer