2 years ago

Which of the following is a solution of 4x^2=-9x-4

Mathematics

1 answer:

NeTakaya2 years ago

4 0

Answer:

(-9+√17)/8

Step-by-step explanation:

its an example of quadratic

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From the diagram below, Is m∠A = 105? and Is ∠B = 75?

frutty [35]

It is the other way around. Angle A = 75° and angle B = 105°.

105° and A are what they call allied/co-interior angles. They must add up to 180°. A= 180°-105° = 75°.

75° and B must also add up to 180°. 180°-75° = 105°.

3 0

3 years ago

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Ebony but a four year treasury note that pay the equivalent of 3.8% simple interest. She invested $3000 more in a 9 year bond e

Anastasy [175]

Treasury bond's invested amount is "$7000" and Bond's invested amount is "$10000",

Let,

The amount invested in treasury note will be = x
The amount invested in bond will be = (x + 3000)

then,

→ $\frac{x\times 4\times 3.8}{100} +\frac{(3000+x)\times 9\times 4.6}{100}=5204$

→ $\frac{15.2x}{100}+\frac{(3000+x)\times 41.4}{100} =5204$

→ $\frac{15.2x}{100} +\frac{124200+41.4x}{100} =5204$

→ $\frac{15.2 x+124200+41.4x}{100} = 5204$

→ $56.6x+124200=520400$

→ $56.6x=520400-124200$

→ $56.6x=396200$

→ $x = \frac{396200}{56.6}$

→ $= 7000$

Amount invested in bond will be:

= $x+3000$

= $7000+3000$

= $10000$

Thus the above is the correct answer.

Learn more:

brainly.com/question/14802140

8 0

2 years ago

A group of 60 people attended a ball game there were four times as many children as adults in the group set up a system of equat

Andrei [34K]

Answer:

4X + X = 60

Step-by-step explanation:

Adults = X

Children = 4 × X

4X + X = 60

I couldnt understand the question that well but this is what i got from it

5 0

2 years ago

What table represents g(x) = -2•f when f(x) = x + 4

Alisiya [41]

What table represents g(x) = -2•f when f(x) = x + 4

g(x) = -2

f(x) = x + 4

f(-2) = -2 + 4

f(-2) = 2

Step-by-step explanation:

#CarryOnLearning

8 0

2 years ago

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Find the value of the expression 4a^4 − 2b^2 + 40 when a = 2 and b = 7

Effectus [21]

Answer:6

Step-by-step explanation:

4(2)^4 − 2(7)^2 + 40

4(16)-2(7)^2+40

64-2(49)+40

64-98+40

-34+40

7 0

2 years ago

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