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faltersainse [42]
4 years ago
9

F(t)=2t−3 f(7)=____ I need some help im not sure what to do here

Mathematics
1 answer:
Dennis_Churaev [7]4 years ago
3 0
(2x7)-3
=11



.................
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I need help please and thank you
Ghella [55]

Answer: The last, bottom, or 4th option.

Step-by-step explanation:

See attached.

    By looking through the details of the information given, we can narrow down the correct answer to option 4.

3 0
2 years ago
What is the slope and the point of y - 5 = 3/2 (x + 3)? please help
goldfiish [28.3K]

y - 5 = 3/2(x + 3)

y - 5 = 3/2x + 9/2

y = 3/2x + 9/2 + 5

y = 3/2x + 19/2

<em>Equation</em><em> </em><em>of</em><em> the</em><em> line</em><em> </em><em>formula</em><em> </em><em>:</em><em> </em><em>y</em><em> </em><em>=</em><em> </em><em>mx</em><em> </em><em>+</em><em> </em><em>c</em>

<em>#</em><em>S</em><em>o</em><em> </em><em>the</em><em> </em><em>slope</em><em> </em><em>(</em><em>m</em><em>)</em><em> </em><em>is</em><em> </em><em>3</em><em>/</em><em>2</em>

<h2><em>Answer</em><em> </em><em>:</em><em> </em><em>3</em><em>/</em><em>2</em></h2>
4 0
3 years ago
If the ratio of the radii of two spheres is 6 : 5, what is the ratio of the surface areas of the two spheres?
Veseljchak [2.6K]
Answer: Choice C) 36:25

To get this answer, we simply square each piece of the original ratio 6:5
6^2 = 36
5^2 = 25

Think of two squares where one has a side length of 6 and the other of 5. The ratio of the sides is 6:5. The areas of the two squares are 36 and 25 as mentioned above. So the ratio is 36:25. This idea can be applied to any surface area or area in general. It doesn't have to be two squares. The reason why we can apply this to any general shape is because we can break up the shape into small squares to get a rough approximation. The more squares we use, the better the approximation.
7 0
3 years ago
Rewrite the equation 12x=13-x^2
MAXImum [283]

Answer:

x^2+12x-13 = 0

Step-by-step explanation:

12x=13-x^2

=>12x+x^2=13-x^2+x^2

=>x^2+12x-13 = 13-13

=> x^2+12x-13 = 0

4 0
3 years ago
Read 2 more answers
Dale drove to the mountains last weekend. There was heavy traffic on the way there, and the trip took 7 hours. When Dale drove h
matrenka [14]
If you let X = the distance in miles from Dales's house, and understand rate = distance/ time, the rate going to mountains = x/7, and back from mountains is x/5. If dale was 18mph fast going home, the equation would be...
(coming home rate) = (going to mountain rate) + 18 which is
x/5 = x/7 + 18. Then solve for X.
Use the least common denominator = 35 so multiply everything by 35 and you get...

7x = 5x+630
simplify...
2x = 630, then
x = 315 .
Dale live 315 miles away from the mountains.


4 0
4 years ago
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