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elena-s [515]
3 years ago
9

Plz help me show work four points correctly evaluate the function for the given value showing all work HELP PLZ

Mathematics
1 answer:
tankabanditka [31]3 years ago
3 0

f(4)=36

Step-by-step explanation:

f(x)=x^2+5x

f(4)=??

you need to put the number 4 instead of x in the equation.

f(4)=(4)^2+(5×4)

f(4)=16+20

f(4)=36

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The ratio of the number of cups of blue paint to the number of cups of red paint that Lara mixed to make a shade of purple paint
Yuliya22 [10]

Answer:

Part A

The number of cups of blue paint that Lara mixed with each cup of red paint is 3 cups of blue paint

Part B

1/3 cup of red paint is added to 1 cup of blue paint

Part C

The unit price per cup of blue paint is $8 per cup of blue paint

Step-by-step explanation:

The ratio of the number of cups of blue paint to the number of cups of red paint that Lara mixed to make a shade of purple paint is 3: 1

Part A: Write a sentence to describe the number of cups of blue paint that Lara mixed with each cup of red paint (4 points)

The ratio is

Blue paint : Red paint

= 3 : 1

Hence,

The number of cups of blue paint that Lara mixed with each cup of red paint is 3 cups of blue paint

Part B: How many cups of red paint should Lara add to each cup of blue paint to make the shade of purple? Explain your reasoning (4 points)

From Part A , we know that

3 cups of blue paint = 1 cup of red paint

1 cup of blue paint = y

Cross Multiply

3 × y = 1 × 1

y = 1/3

Hence, 1/3 cup of red paint is added to 1 cup of blue paint

Part C: I Lara purchased 6 cups of blue paint for $48, what is the unit price per cup of blue paint? (2 points)

6 cups of blue paint = $48

1 cup of blue paint = x

6 × x = $48 × 1

x = $48/6

x = $8

6 0
4 years ago
What is the number in scientific notation?
SSSSS [86.1K]
In scientific notation, the number would be 9.3 × 10^-11
4 0
3 years ago
Read 2 more answers
9
ANTONII [103]

3/4 plus 1/4

Step-by-step explanation:

6 0
3 years ago
Answer super quick for brainliest and 50 POINTSSS
Elanso [62]

Answer:

y = (2/3)x +3

Step-by-step explanation:

let me know if you want it in a diffrent form

6 0
3 years ago
The radius of the cone is 7 in and y = 25 in. What is the volume of the cone in terms of π? A cone with a right triangle formed
Lady bird [3.3K]

Answer:

142.1π in³

Step-by-step explanation:

Given that:

The radius (r) =  7 in

The slant height (y) = 25 in

Then the height (x) can be determined by using the Pythagoras rule:

y² = x² + r²

25² = x² + 7²

125 = x² + 49

125 - 49 = x²

x² = 76

x = √76

x = 8.7

The formula for the volume of a cone is;

= 1/3 πr²h

where;

height(h) is calculated as "x" from above = 8.7

Then;

= 1/3 × π × (7 in)² × 8.7 in

= 142.1π in³

5 0
3 years ago
Read 2 more answers
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