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Evaluate the expression for x = –3. x^2+4x+3

DanielleElmas [232]

Answer:

0

Step-by-step explanation:

Substitute x = - 3 into the expression

x² + 4x + 3

= (- 3)² + 4(- 3) + 3

= 9 - 12 + 3

= 0

7 0

3 years ago

Black diamond ski resort charges $25 for ski rental and $10 an hour to ski. Bunny hill ski resort charges $50 for ski rentals an

aleksley [76]

Answer:

Five hours at both ski resorts cost the same

Step-by-step explanation:

Let x = hours Let y = cost

Black Diamonds Ski Resort: 25 + 10x = y

Bunny Hill: 50 + 5x = y

Since the cost should be equal, we can substitute for these two equations.

25 + 10x = 50 + 5x

Solve for x:

x = 5

Check: Plug in for x

Black Diamonds Ski Resort: 25 + 10(5) = 25 + 50 = $75

Bunny Hill: 50 + 5(5) = 50 + 25 = $75

The cost is the same, so we know that five hours has the same cost at both ski resorts.

I hope this is correct! Please mark me as brainliest if this is correct :3

6 0

3 years ago

Graph a line through the point (-3, 2) with a slope of -2/5 .

alexira [117]

Answer:

y = $-\frac{2}{5} x$ $-\frac{16}{5}$

Some of the points on the graph are: (0,-3.2),(-8,0),(2,-4), and (-3,-2)

Step-by-step explanation:

https://www.d esmos.com/calculator/jx7d3ews7b

Brainly has been acting up. It won't let us paste links.

So when copying and pasting the link above, remove the space between d and e to get the graph.

Hope that helps!

7 0

3 years ago

Caleb's mother said they will drive 1 /4 hour to get there, and they will drive another 1 /4 hour back. Once they arrive, Caleb'

Nezavi [6.7K]

Answer: They are away for $2\dfrac{3}{4}\ hours$ from home.

Step-by-step explanation:

Since we have given that

Time to get there = $\dfrac{1}{4}$

Time to get back = $\dfrac{1}{4}$

Number of soccer games = 3

Time for each soccer games = $\dfrac{3}{4}$

So, total time for 3 games would be

$3\times \dfrac{3}{4}=\dfrac{9}{4}$

So, the time for which they will be away from home is given by

$\dfrac{1}{4}+\dfrac{9}{4}+\dfrac{1}4}=\dfrac{1+9+1}{4}=\dfrac{11}{4}=2\dfrac{3}{4}\ hours$

Hence, they are away for $2\dfrac{3}{4}\ hours$ from home.

3 0

4 years ago

Divide £42 in the ratio 1:5

MissTica

Answer:

This Ratio Division Calculator allows you to divide an amount by a specific ratio (with multiple ratio values, for example 2:5:9:11:18, click on the "Example" buttons for ratio division examples), if you are new to ratio division or want to understand the formulas used in ratio division you should use our Divide Ratio Calculator as this ratio division calculator assumes you already understand the basics of ratio division, you may also find our Equivalent Ratio Calculator useful. A ratio is a numerical comparison of 2 or more quantities and indicate the relative size of each quantity. Ratios are used in a number of daily activities and business markets, the Ratio Division Calculator can be used to divide a specific ratio, you can also access additional Ratio Calculators for application in math, engineering and other every day scenarios.

Step-by-step explanation:

d = c × b a ,

d = 3 × 8 4 = 6

6 0

3 years ago