2 years ago

ᑕᗩᑎ YOᑌ ᗩᑎՏᗯᗴᖇ IT ᵈᵈᵈᵈᵈᵈᵈ

Mathematics

2 answers:

artcher [175]2 years ago

4 0

11.87 rounded to 11.9 = 12

Allushta [10]2 years ago

3 0

Answer:

the answer is 16

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What is the vertex form of y=-2x2+4x + 3?

sukhopar [10]

Answer:

$y=-2(x-1)^2+5$

Step-by-step explanation:

we have

$y=-2x^2+4x+3$

This is the equation of a vertical parabola open downward

The vertex represent a maximum

Convert the quadratic equation into vertex form

step 1

Factor -2

$y=-2(x^2-2x)+3$

step 2

Complete the square

$y=-2(x^2-2x+1)+3+2$

$y=-2(x^2-2x+1)+5$

step 3

Rewrite as perfect squares

$y=-2(x-1)^2+5$ ----> equation in vertex form

The vertex is the point (1,5)

3 0

3 years ago

The yield of strawberry plants depends on the amount of fertilizer fed to the plants. Agricultural research shows that an acre o

kifflom [539]

Answer:

$792\ \text{pounds}$

Step-by-step explanation:

$x_1=70$ cubic feet of fertilizer is used in $y_1=770$ pounds of strawberries

$x_2=90$ cubic feet of fertilizer is used in $y_2=990$ pounds of strawberries

$x=72$ cubic feet of fertilizer is used

Linear interpolation is applied

$y=y_1+\dfrac{(x-x_1)(y_2-y_1)}{x_2-x_1}\\\Rightarrow y=770+\dfrac{(72-70)(990-770)}{90-70}\\\Rightarrow y=792\ \text{pounds}$

72 cubic feet of fertilizer will yield $792\ \text{pounds}$ of strawberries.

5 0

2 years ago

Help fast 15 points need help fast

inessss [21]

Answer:its -10 and 10 that is marked

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

CAN SOMEONE HELP ME WITH THIS, PLEASE AND THANK YOU.

Ksenya-84 [330]

1 1/3 × 4

= 4/3 × 4

= 16/3

= 5 1/3

5 0

2 years ago

Read 2 more answers

Fill in the blank to complete the trigonometric formula. (Select all that apply.)<br> COS 2u

taurus [48]

Answer:

2cos^2u--1

1--2sin^2u

cos^2u--sin^2u

Step-by-step explanation:

please mark me as brainlest

3 0

2 years ago

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