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erma4kov [3.2K]

3 years ago

11

(Please Help! I need this done NOW! and I mean NOW! Please Help whoever is seeing this!) Which inequality is equivalent to −4t≥2

8?
A. t ≥ -7
B. t ≥ 7
C. t ≤ -7
D. t ≤ 7

1 answer:

Mademuasel [1]3 years ago

6 0

The answer should be C

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Which number can be written as a fraction and is therefore Rational?

djverab [1.8K]

Answer:

0.89898989.... is the correct answer

Fraction form: $\frac{89}{99}$

Step-by-step explanation:

0.89898989.... is the correct answer because it can be written as $\frac{89}{99}$ in the simplest form. and 0.89898989.... is rational because it is a repeating number.

Any rational number is a number that can be written as a fraction, a repeating decimal, a whole number, an integer, etc. As long as the number is a number with infinite digits like π.

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2 years ago

What is the answer??? so confused

ipn [44]

Answer:

3 1/2

Step-by-step explanation:

Put '3' where 'y' is and compute :

[12 -3(3) ] / 2 + 3 [ (2(3)-4 )/3) =

3/2 + 2

= 3 1/2

3 0

2 years ago

Given the functions f(x) = 4x2 − 1, g(x) = x2 − 8x + 5, and h(x) = –3x2 − 12x + 1, rank them from least to greatest based on the

tangare [24]

Answer:

Option D) h(x), f(x), g(x)

Step-by-step explanation:

we know that

The axis of symmetry of a vertical parabola is equal to the x-coordinate of the vertex of the parabola

Part 1) we have

$f(x)=4x^{2} -1$

This is a vertical parabola open upward

The vertex is a minimum The vertex is the point (0,-1)

The x-coordinate of the vertex is 0

so

The axis of symmetry is x=0

Part 2) we have

$g(x)=x^{2}-8x+5$

This is a vertical parabola open upward

The vertex is a minimum

Convert the equation into vertex form

$g(x)-5=x^{2}-8x$

$g(x)-5+16=x^{2}-8x+16$

$g(x)+11=x^{2}-8x+16$

$g(x)+11=(x-4)^{2}$

$g(x)=(x-4)^{2}-11$

The vertex is the point (4,-11)

The x-coordinate of the vertex is 4

so

The axis of symmetry is x=4

Part 3) we have

$h(x)=-3x^{2}-12x+1$

This is a vertical parabola open downward

The vertex is a maximum

Convert the equation into vertex form

$h(x)-1=-3x^{2}-12x$

$h(x)-1=-3(x^{2}+4x)$

$h(x)-1-12=-3(x^{2}+4x+4)$

$h(x)-13=-3(x+2)^{2}$

$h(x)=-3(x+2)^{2}+13$

The vertex is the point (-2,13)

The x-coordinate of the vertex is -2

so

The axis of symmetry is x=-2

Part 4) Rank their axis of symmetry from least to greatest

1) h(x) -----> axis of symmetry -2

2) f(x) -----> axis of symmetry 0

3) g(x) -----> axis of symmetry 4

so

h(x),f(x),g(x)

7 0

3 years ago

Find the area of the pollelegram. bass 6 mm height 4 mm.

Alchen [17]

Answer:

6 x 4 =24

the answer is 24

Step-by-step explanation:

4 0

2 years ago

chord ab intersects chord hi at point c.the length of cb is 4 times the length of ac.find the length of ac

Mkey [24]

Chord AB = ?
Chord AB = AC + CB

Chord HI = HC + CI
HC = 7
CI = 28
Chord HI = 7 + 28 = 35

Chord AB = Chord HI

CB is 4 times the Length of AC. Let AC be X.

x + 4x = 35
5x = 35
x = 35/5
x = 7

AC = x = 7
CB = 4x = 4(7) = 28

5 0

3 years ago