Help me please!!! :)

Mathematics

1 answer:

svetlana [45]2 years ago

5 0

Answer:

Step-by-step explanation:

f(x) = x^2+1 at x=-1, f(-1)=1+1=2

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Does anyone know if 4 can go into 72

Nuetrik [128]

4 can go into 72 18 times

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3 years ago

Read 2 more answers

How do you graph these???

Advocard [28]

This is # 22. And the second picture would be # 23

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2 years ago

The Royal Fruit Company produces two types of fruit drinks. The first type is 70% pure fruit juice, and the second type is 95% p

satela [25.4K]

Let x pints be the required amount of 70% pure juice.
Let y pints be the required amount of 95% pure juice.
x + y = 70 pints
Therefore we can write:
y = 70 - x ................(1)
Amount of pure juice in x pints = 0.7x.
Amount of pure juice in y pints = 0.95y = 0.95(70 - x).
Amount of pure juice in 70 pints = 0.8 x 70 = 56 pints.
Equating the amounts of pure juice, we get:
0.7x + 0.95(70 - x) = 56 ...........(2).
The solution to equation (2) is x = 42. Therefore y = 70 - 42 = 28.
The answer is: 42 pints of 70% pure fruit juice and 28 pints of 95% pure fruit juice are required.

8 0

2 years ago

Challenge! A. 13 B. 24 C. 6 D. 34

irga5000 [103]

Answer:

A. 13.

Step-by-step explanation:

x + 9 = 2(3x - 38)

X + 9 = 6X - 76

85 = 5x

x = 85/5

x = 17

So RS = 3(17) - 38

= 51 - 38

= 13

8 0

2 years ago

Math question help~~ ty

Anna35 [415]

Hey there!

Let's look at the first equation.

$y \leq -3x-2$

Notice that the slope is negative. We can eliminate the second choice because that answer choice does not show any line with negative slope.

This graph has a y-intercept of negative 2. Thus, we can eliminate the third choice since the graph does NOT have a y-intercept of negative 2 in that answer choice.

Also, since the inequality symbol is less than or equal to, the shaded area must be below the line with negative slope. We can eliminate the 4th choice because that choice shows a shaded area ABOVE the negative-sloped line.

What does that leave us with? The first choice! All we had to do was analyze one equation!

Have an awesome day! :)

~AgentCozmo4, Junior Moderator

8 0

3 years ago