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3 years ago

PLEASE SOMBODY HELP ME I WILL GIVE BRAINLY IF YOU ARE CORRECT 10 POINTS

Mathematics

1 answer:

erma4kov [3.2K]3 years ago

8 0

1. D= 500/40
2.D= 125/v
3.80= m/1.4
4.D= m/v

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Consider the equation below.

Korvikt [17]

Answer:

Equation in square form:

$y=3(x+5)^2-4$

Extreme value:

$(h,k)=(-5,-4)$

Step-by-step explanation:

We are given

$y=3x^2+30x+71$

we can complete square

$y=3(x^2+10x)+71$

we can use formula

$a^2+2ab+b^2=(a+b)^2$

$y=3(x^2+2\times x\times 5)+71$

now, we can add and subtract 5^2

$y=3(x^2+2\times x\times 5+5^2-5^2)+71$

$y=3(x^2+2\times x\times 5+5^2)-3\times 5^2+71$

$y=3(x+5)^2-75+71$

So, we get equation as

$y=3(x+5)^2-4$

Extreme values:

we know that this parabola

and vertex of parabola always at extreme values

so, we can compare it with

$y=a(x-h)^2+k$

where

vertex=(h,k)

now, we can compare and find h and k

$y=3(x+5)^2-4$

we get

h=-5

k=-4

so, extreme value of this equation is

$(h,k)=(-5,-4)$

6 0

4 years ago

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The solution to 5x - 7 = 21?

lapo4ka [179]

Answer:

x = 5.6

Step-by-step explanation:

5x - 7 = 21

5x = 28

x = 5.6

Can I geet brainliest

4 0

3 years ago

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Number 4 pleeeaaassseee

dmitriy555 [2]

This is simple, cycle through the answers until you get 30 inches squared. The answer is height equals 5. 2x3x5=30

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3 years ago

at party the pumpkin pie is cut into 14 slices and the cherry pies cut into seven slices if the host wants to serve identical pl

Lyrx [107]

Answer:

The host can only prepare 7 plates

Step-by-step explanation:

7 plates, each will contain 1 slice of cherry pie and 2 slices of pumpkin pie. (14/7 = 2)

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3 years ago

The cost of 5 cans of dog food is $4.35. At this price, how much do 11 cans of dog food cost?

Mice21 [21]

Answer:

9.57

Step-by-step explanation:

4.35 / 5 = 0.87

0.87 x 11 = 9.57

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3 years ago

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