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3 years ago

Help plz!!!! I really need this question fast

Mathematics

2 answers:

Oksanka [162]3 years ago

6 0

The answer is
A. 20x^2+2

PSYCHO15rus [73]3 years ago

4 0

You multiply everything by -4x
the answer would be B

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Find the solution of 3.75x +15 = 63.75

gizmo_the_mogwai [7]

Answer:

The answer is x = 13.

Step-by-step explanation:

first, move the constant to the right and change its sign, (+15)

3.75 x = 63.75 -15

next, subtract the numbers, (65.75 -15)

3.75x = 48.75

then, divide both sides of the equation by 3.75,

final answer, x = 13

3 0

4 years ago

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Write these as normal numbers.

Mice21 [21]

A) 550.8
b) 96°
c) 0.00244
d) 50.23

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3 years ago

Circle A and Circle B have radii of 8 cm and 5 cm. BC and BD are tangent to Circle A. Find CF

Elan Coil [88]

$\bold{ANSWER:}$
CF = 5.24

$\bold{EXPLANATIONS:}$

4 0

2 years ago

PLEASE HELO ME AND EXPLAIN PLEASE. AND PLEASE SHOW IN STEPS!! i will mark brainliest if you get it correct!

Dimas [21]

Step-by-step explanation:

The height of the swipe card is given by :

$h(t)=-3t^2+15t+18$ .....(1)

We need to find the maximum height of the swipe card and the time to reach the maximum height.

For maximum height, put dh/dt = 0

So,

$\dfrac{d}{dt}(-3t^2+15t+18)=0\\\\-9t+15=0\\\\t=\dfrac{15}{9}\\\\t=1.67\ s$

It will take 1.67 seconds to reach the maximum height.

Now, put t = 1.67 s in equation (1).

$h(1.67)=-3(1.67)^2+15(1.67)+18\\\\=34.68\ feet$

Hence, the maximum height of the swipe card is 34.68 feet and the time to reach this height is 1.67 s.

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3 years ago

Is 400 pt greater than 100 gal

Rufina [12.5K]

Answer:

no.400pts is equal to 50 gallons.1pt equals 0.125 gallons 400 pints x0.125 gallons equals 50 gallons,so that statement is false

Step-by-step explanation:

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3 years ago

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