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3 years ago

The expression 2x2 + 12x + 10 represents a bird's height, in feet, x seconds after it leaves its nest,

Mathematics

1 answer:

marusya05 [52]3 years ago

8 0

The answer is A. You add the extra 10 feet to however high the bird flew from there

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What is the value of the expression? 5(-4)-(10+5)

andrew-mc [135]

Answer:

Step-by-step explanation:

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2 years ago

A millimeter is 0.001 of a meter how many millimeters are there in 7 meters

yawa3891 [41]

$\frac{1000 \, mm}{1 \, m} \cdot \frac{7}{7} = \frac{7000 \, mm}{7 \, m}$

Therefore, there are $7000$ millimeters in seven meters.

7 0

3 years ago

Read 2 more answers

Evaluate lim x=π/4(3x - tanx)

Karo-lina-s [1.5K]

Answer:

$\lim_{x \to\frac{\pi }{4} } (3x-tanx)$ = $3(\frac{\pi }{4} )$

Step-by-step explanation:

Explanation:-

Given that

$\lim_{x \to\frac{\pi }{4} } (3x-tanx)$

= $\lim_{x \to\frac{\pi }{4} } (3x) - \lim_{x \to\frac{\pi }{4} } tanx)$

= $3(\frac{\pi }{4} )+tan(\frac{\pi }{4} )$

= $3(\frac{\pi }{4} )+ 1 )$

= $3(\frac{\pi }{4} )$

5 0

2 years ago

Please help, I need input on if I did this correctly and you just substitute.

kow [346]

The value of h(t) when $t=\frac{15}{32}$ is 10.02.

Solution:

Given function $h(t)=-16t^2+15t+6.5$

To find the value of h(t) when $t=\frac{15}{32}$ :

$h(t)=-16t^2+15t+6.5$

Substitute $t=\frac{15}{32}$ in the given function.

$$h\left(\frac{15}{32} \right)=-16\left(\frac{15}{32} \right)^2+15\left(\frac{15}{32} \right)+6.5$

$$=-16\left(\frac{225}{1024} \right)+15\left(\frac{15}{32} \right)+6.5$

Now multiply the common terms into inside the bracket.

$$=-\left(\frac{3600}{1024} \right)+\left(\frac{225}{32} \right)+6.5$

Now, in the first term, the numerator and denominator both have common factor 16. So reduce the first term into the lowest term.

$$=-\left(\frac{225}{64} \right)+\left(\frac{225}{32} \right)+6.5$

To make the denominator same, take LCM of the denominators.

LCM of 64 and 32 = 64

$$=-\left(\frac{225}{64} \right)+\left(\frac{225\times2}{32\times2} \right)+6.5\times\frac{64}{64}$

$$=-\frac{225}{64} +\frac{450}{64}+\frac{416}{64}$

$$=\frac{-225+450+416}{64}$

$$=\frac{641}{64}$

= 10.02

$$h\left(\frac{15}{32} \right)=10.02$

Hence the value of h(t) when $t=\frac{15}{32}$ is 10.02.

8 0

3 years ago

What is 2 1/2 divided by 1/3

olga nikolaevna [1]

Answer:

7 1/2

Step-by-step explanation:

2 1/2 ÷ 1/3

Change the mixed number to an improper fraction

2 1/2 = (2*2+1)/2 = 5/2

5/2 ÷ 1/3

Copy dot flip

5/2 *3/1 = 15/2

Changing back to a mixed number

2 goes into 15 7 times with 1 left over

7 1/2

5 0

3 years ago