8 months ago

G(x) = -x - 2, find g(-5).

Mathematics

1 answer:

Elena L [17]8 months ago

7 0

Answer:

Step-by-step explanation:

to solve this equation, put in -5 for x

g(x)=-(-5)-2

g(x)=5-2

g(x)=3

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a student scores 71 out of 100 on a test, if the maximum score on the tests is also 100, what score does the student need to mai

Nonamiya [84]

(71+x)/2=78
71+x=156
x=85

Th student needs to score a min of 85

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2 years ago

During a manufacturing process, a metal part in a machine is exposed to varying temperature conditions. The manufacturer of the

mars1129 [50]

Answer:

Yes, it will reach or exceed 141 degree F

Step-by-step explanation:

Given equation that shows the temperature T in degrees Fahrenheit x minutes after the machine is put into operation is,

$T = 0.005x^2 + 0.45x + 125$

Suppose T = 141°F,

$\implies 141 = 0.005x^2 + 0.45x + 125$

$\implies 0.005x^2 + 0.45x + 125 - 141 =0$

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Since, a quadratic equation $ax^2 + bx + c =0$ has,

Real roots,

If Discriminant, $D = b^2 - 4ac \geq 0$

Imaginary roots,

If D < 0,

Since, $0.45^2 - 4\times 0.005\times -16 = 0.2025 + 32 > 0$

Thus, roots of -0.005x² + 0.45x + 125 are real.

Hence, the temperature can reach or exceed 141 degree F.

6 0

3 years ago

Find the percent of a number.<br><br>6% of 38 = ?<br>115% of 212 = ?<br>32% of 24 = ?

MA_775_DIABLO [31]

6% of 38= 2.28
115% of 212=243.8
32% of 24= 7.68

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2 years ago

The table shows the price of strawberries this week at The Produce Place.

Marat540 [252]

Answer:

The constant of proportionality is 2.50

Step-by-step explanation:

For a weight of 1 lb, the price is $2.50, so the price in dollars is related to the weight in pounds by the constant 2.50.

The constant of proportionality is 2.50 (dollars per pound).

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2 years ago

Need help with this asap

ipn [44]

Answer:

SSS

Step-by-step explanation:

All sides with the same amount of lines are congruent

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2 years ago