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3 years ago

Select whether the equation has a solution or not -roots -no roots

Mathematics

1 answer:

NARA [144]3 years ago

6 0

The answer is roots :))

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Levart [38]

what do you mean? do you have a picture of the question?

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3 years ago

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What is the value of x?

just olya [345]

2x + 10 = 44
2x= 34
x= 17

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4 years ago

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Perform the indicated operation of g(x)=2x h(x)=3x+4 find (g-h) (x)

chubhunter [2.5K]

Answer: g(h(x))=6x +1 and h(g(x)) = 6x+7

Step-by-step explanation: Basically , this is a substitution exercise.

g(h(x)) = g(2x-1) . Now substitute x = 2x-1 in for x in g(x)

hence g(2x-1) = 3(2x-1)+4 = 6x - 3 + 4 = 6x + 1

Similarly : h(g(x)) = h(3x+4) substitute x = 3x+4 in h(x)

hence h(3x+4) = 2(3x + 4 ) - 1 = 6x + 8 - 1 = 6x + 7

3 0

3 years ago

2b^2 +32b + 128 Pls answer this

KengaRu [80]

Answer:

${2b}^{2} + 32b + 128$

Factor and get

$x = - 8$

8 0

3 years ago

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Pls help me out with this question

Nezavi [6.7K]

Answer:

83 m (nearest metre)

Step-by-step explanation:

This can be modeled as a right triangle, where the base is 60 m and the height is the height of the building.

Alternate Interior Angles Theorem (Z-angles)

If a line intersects a set of parallel lines in the same plane at two distinct points, the alternate interior angles that are formed are congruent.

Using the Alternate Interior Angles theorem, the angle between the ground and the dashed line (angle of elevation) is 54°.

Tan trigonometric ratio

$\sf \tan(\theta)=\dfrac{O}{A}$

where:

$\theta$ is the angle
O is the side opposite the angle
A is the side adjacent the angle

Given:

$\theta$ = 54°
O = height of building (h)
A = 60

Substituting the given values into the formula and solving for h:

$\implies \sf \tan(54^{\circ})=\dfrac{h}{60}$

$\implies \sf h=60 \tan(54^{\circ})$

$\implies \sf h=82.58291523...$

$\implies \sf h=83\:\:m\:(nearest\:metre)$

7 0

2 years ago

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