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2 years ago

Help D Dmsjzjzjzjjzzxhxhxhxhxhxh

Mathematics

2 answers:

Anni [7]2 years ago

5 0

Answer:

Step-by-step explanation:

${82 { }^{2} } - 80 {}^{2} = 324 \\ \sqrt{324 } = 18$

11111nata11111 [884]2 years ago

5 0

18 cnfjvndjcjdfjejfjdkfkfn

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Barbara sells iced tea for $1.49 per bottle and water for $1.25 per bottle. She wrote an equation to find the number of bottles

yKpoI14uk [10]

Answer:

1.49x+1.25x=100

Step-by-step explanation:

5 0

2 years ago

Jim drank 245 cups of orange juice and Jack drank 1110 cups less than Jim.

Debora [2.8K]

Answer:

Step-by-step explanation:

Jim drank 2 and 4/5 orange juice

2and 4/5=14/5 orange juice

jack drank 1and 1/10 less than Jim= 11/10 less than Jim

I introduce the whole numbers into the fractions

we will convert the number 14/5 into a fraction that has the denominator 10, by multiplying by 2 both numerator and denominator

(14/5 )*2=28/10

Now we can find out how much juine Jack drank

28/10- 11/10= 17/10

so Jack drank 17/10 orange juice , the fraction can be written also as

1 and 7/10

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2 years ago

What is the measure of < BCD ? Justify your answer.

Likurg_2 [28]

Answer:

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Step-by-step explanation:

4π/3 radians. Triangle A B C has angles labeled as follows: A, (101x + 2) degrees; B, 34x degrees; C, unlabeled. The measure of ∠BCD is 120°. )

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2 years ago

Determine the equation of the circle graphed below. ( please help me )

Brums [2.3K]

Answer:

$Equation : \\(x+3)^2 + ( y -2)^2 = 36$

Step-by-step explanation:

For standard form the circle's equation we need the centre of the circle and the radius.

Step 1: Find the centre

If the centre is not given find the end points of the diameter

and then find the mid point.

Let the end points of the diameter be : ( - 3 , 8 ) and ( -3 , -4 )

The mid-point of the diameter is :

$Mid-point = (\frac{-3 + - 3}{2}, \frac{-4+8}{2}) = (-3, 2)$

Therefore, centre of the circle = ( -3 , 2 )

Step 2 : Find radius

$Radius = \frac{Diameter }{2}$

Diameter is the distance between the end points ( -3 , 8) and ( -3 , -4 )

That is ,

$Diameter = \sqrt{(-3-(-3))^2 + ( -4 -8)^2}\\$

$= \sqrt{(-3 + 3)^2 + (-12)^2}\\\\=\sqrt{0 + 144}\\\\=12$

Therefore ,

$Radius = \frac{12}{2} = 6$

Step 3 : Equation of the circle

Standard equation of the circle with centre ( h ,k )

and radius ,r is :

$(x - h)^2+(y -k)^2 = r^2$

Therefore, the equation of the circle with centre ( -3, 2)

and radius = 6 is :

$(x - (-3))^2 + (y - 2)^2 = 6^2\\\\(x + 3)^2 + (y - 2)^2 = 36$

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2 years ago

-2 (x) = -2 ( x-14)

nata0808 [166]

Answer:

There are no solutions.

Step-by-step explanation:

−2x=−2(x−14)

-2x=(−2)(x)+(−2)(−14)

-2x=−2x+28

-2x+2x=−2x+28+2x

0= 28

5 0

2 years ago