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3 years ago

What is the result of substituting for yin the bottom equation? y=x+3 y= x^2 + 2x - 4

Mathematics

1 answer:

marta [7]3 years ago

4 0

Answer:

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

Step-by-step explanation:

Straight substitution of the top expression for y gives you ...

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

This lets you rewrite the equation to standard form as ...

x^2 +x -7 = 0

and find the solutions to be ...

x = (-1±√29)/2

Corresponding y-values will be 3 more than this:

y = (5±√29)/2

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Pleas someone help find the answer -1/5+3/5=

KonstantinChe [14]

Answer:

0.4

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3 years ago

Read 2 more answers

Malia is planting tomato and pepper plants in her garden each tomato plant t requires 6 square feet and each pepper plant p requ

MAVERICK [17]

Answer:

6 t + 4 p ≤ 150 is the required inequality.

Step-by-step explanation:

Here, the area required for 1 tomato plant = 6 sq ft

So, the area required to plant t tomato plants

= t x ( Area required by 1 tomato plant) = t x ( 6 sq ft) = 6 t

the area required for 1 pepper plant = 4 sq ft

So, the area required to plant p pepper plants

= p x ( Area required by 1 pepper plant) = p x ( 4 sq ft) = 4 p

Now, total area of the garden = 150 Sq ft.

Also, area of p pepper pants + t tomato plants = (6 t + 4 p) sq ft

So, now according to the question:

Total area of both plants ≤ Total area of the garden

⇒ (6 t + 4 p) sq ft ≤ 150 sq ft

or, 6 t + 4 p ≤ 150 is the required inequality.

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3 years ago

A poll agency reports that 27 % of teenagers aged 12-17 own smartphones. A random sample of 85 teenagers is drawn. Round your an

Paladinen [302]

Answer:

Mean = цр = 0.27

Step-by-step explanation:

Note: The full question is attached as picture below

Given that, p = 27 = 0.27 and n = 85

цр = P

Mean = цр = 0.27

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3 years ago

Evaluate the following expression . 2*[4+(12+16)/7

Nataliya [291]

Answer:

Step-by-step explanation:

$2 \times (4 + (12 + 16) \div 7 \\ (12 + 16) = 28 \div 7 = 4 + 4 = 8 \\ 2 \times 8 = 16$

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3 years ago

N 1968, it cost $54,000 for a 30-second commercial during the Super Bowl. In 1973, the cost for a 30-second commercial was $88,0

Yuri [45]

Answer:

In 5 years, the price increased about 30%.

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3 years ago

What is the result of substituting for yin the bottom equation? y=x+3 y= x^2 + 2x - 4​

What is the result of substituting for yin the bottom equation? y=x+3 y= x^2 + 2x - 4