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3 years ago

Help !! Which represents the solution(s) of the graphed system of equations, y = x2 – 2x and y = –2x – 1?

Mathematics

2 answers:

kupik [55]3 years ago

8 0

the correct answer is

D)no solutions

just took the test

Studentka2010 [4]3 years ago

5 0

B is the answer.
y = 0^2 - 2(0) = 0 (0, 0)
y = -2(0) - 1 = -1 (0, -1)

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A tree that grows 3 feet every 5 years is growing at a rate of ___ feet per year.

Anni [7]

Answer: 0.6

Reason: 3 divide by 5 is 0.6

8 0

3 years ago

Read 2 more answers

vlad a economiit o suma de bani.A cheltuit 20 lei pentru felicitari apoi tatal i-a dublat suma. A cheltuit 40 lei pe martioare a

timurjin [86]

He had saved 320 initially

Step-by-step explanation:

Let the amount he saved be 'a'

Amount spent = 20 + 40 + 30

= 90

His grand father gave 50

At the end he has 280

280 = a - 90 +50

a = 280 -50 +90

= 320

He had saved 320 initially

7 0

3 years ago

Find a number such that 10 less than two thirds the number is one fourth the number

Ivan

Answer:

the number is 24

Step-by-step explanation:

10 less than two thirds the number is one fourth the number

Let the unknown number be x

two third of the number is $\frac{2}{3} x$

10 less than two third the number becomes

$\frac{2}{3}x-10$

one fourth the number becomes $\frac{1}{4}x$

10 less than two thirds the number is one fourth the number

$\frac{2}{3}x-10=\frac{1}{4}x$

We need to solve for x

LCD is 3*4 = 12

Multiply the whole equation by 12

$\frac{2*12}{3}x-10*12=\frac{1*12}{4}x$

8x - 120 = 3x

add 120 on both sides

8x = 3x + 120

Subtract 3x on both sides

5x = 120

divide by 5 on both sides

x= 24

3 0

3 years ago

Clare knows that Priya has a bunch of nickels and dimes in her pocket and 2 points

Maurinko [17]

Answer:

5x + 10y = 125

Step-by-step explanation:

Let :

Number of nickel = x

Number of dime = y

Nickel = 5 cent

Dime = 10 cent

Total value = $1.25

Total value should be converted to cent since both dime and nickel are both in cent

= $1.25 * 100 = 125 cents

Therefore,

5x + 10y = 125 cents

4 0

3 years ago

A square pyramid has sides of 8 m. Each face is an equilateral triangle.

Annette [7]

Lateral Area means Area of all four triangles

Now area of 1 triangle = $\frac{\sqrt{3}}{4} a^2 = \frac{\sqrt{3}}{4} 8^2$

= $\frac{\sqrt{3}}{4} * 64 = 16\sqrt{3}$ square meters

Now for four triangles we multiply by 4

Lateral area of pyramid = $4* 16\sqrt{3} = 64\sqrt{3}$ m^2

that is Option D

3 0

3 years ago