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3 years ago

HELP PLSSS THIS IS HARD SOMEONE

Mathematics

2 answers:

tamaranim1 [39]3 years ago

8 0

Answer:

(-3,2)

Step-by-step explanation:

After rotation through 90° clockwise, any point P(x,y) becomes (y,-x).

Hence the point C(-2,-3), will become (-3,2)

Jet001 [13]3 years ago

5 0

Answer:

Third option: (-5, 2)

Step-by-step explanation:

C is on point (-3, -2)

After being rotated 90 degrees, C is on point (-3, 2)

After being 'slid' left two, it the x value (the horizontal value) becomes two less than what is currently is.

So, it becomes (-5, 2)

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Three hot dogs and two hamburgers cost $8.00 two hot dogs and three hamburgers cost $8.25. How much does one hot dog cost?

navik [9.2K]

The cost of 1 hot dog is $ 1.5

Solution:

Let "x" be the cost of 1 hot dog

Let "y" be the cost of 1 hamburger

From given,

Three hot dogs and two hamburgers cost $8.00

3x + 2y = 8 ------- eqn 1

two hot dogs and three hamburgers cost $8.25

2x + 3y = 8.25 ------- eqn 2

Solve eqn 1 and eqn 2

Multiply eqn 1 by 2

6x + 4y = 16 ------ eqn 3

Multiply eqn 2 by -3

-6x - 9y = - 24.75 ------- eqn 4

Add eqn 3 and eqn 4

6x + 4y = 16

-6x - 9y = - 24.75

( +) -----------------

-5y = -8.75

5y = 8.75

y = 1.75

Substitute y = 1.75 in eqn 1

3x + 2(1.75) = 8

3x = 8 - 3.5

3x = 4.5

x = 1.5

Thus cost of 1 hot dog is $ 1.5

8 0

3 years ago

Can anyone help me solve this? I keep getting stuck on this question.

aleksandrvk [35]

Angle 1= 76 degrees
Angle 2=38 degrees
Angle 3=76 degrees
Angle 4=38 degrees

7 0

3 years ago

What is the slope of this table?

spayn [35]

The would be -3,, because your doing y2-y1 over x2-x1

7 0

3 years ago

Jordan bikes at a speed of 8 2/3 mph. How many miles will he bike in 3 hours and 6 minutes?

Veronika [31]

Answer:

He will bike 26.87 miles.

Step-by-step explanation:

Given:

Jordan bikes at a speed of 8 2/3 mph.

Now, to find the distance he will bike in 3 hours and 6 minutes.

Speed = $8\frac{2}{3}=\frac{26}{3}\ mph.$

Time = 3 hours and 6 minutes

= $180+6=186\ minutes.$

As, 60 minutes = 1 hour.

= $\frac{186}{60} =3.1\ hours.$

So, to get the distance we put formula:

$Distance=speed\times time$

$Distance=\frac{26}{3} \times 3.1$

$Distance=\frac{80.6}{3}$

$Distance=26.87\ miles.$

Therefore, he will bike 26.87 miles.

5 0

3 years ago

Find the limit of the function by using direct substitution.

Pavel [41]

ANSWER

$lim_{x \to \: 0}( {x}^{2} - 1) = - 1$

EXPLANATION

The given limit is

$lim_{x \to \: 0}( {x}^{2} - 1)$

To evaluate this limit by direct substitution,

We put x=0 in the function.

This implies that that ,

$lim_{x \to \: 0}( {x}^{2} - 1) = {0}^{2} - 1$

This simplifies to,

$lim_{x \to \: 0}( {x}^{2} - 1) = 0 - 1$

$lim_{x \to \: 0}( {x}^{2} - 1) = - 1$

This means that as x-values approach zero, the function approaches -1.

7 0

3 years ago

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