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Vsevolod [243]
3 years ago
7

12 problems in45 mins 20 problems in how much time

Mathematics
2 answers:
Harlamova29_29 [7]3 years ago
8 0

Step-by-step explanation:

well i think it would be 45÷12 and then your answer would be how many minutes per question and theres your answer. hope this helps

Anni [7]3 years ago
5 0

Answer:

75 mins or 1 hour 15 min :)

Step-by-step explanation:

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A group of friends wants to go to the amusement park. They have no more than $155
seraphim [82]

Answer:

9 people can go

Step-by-step explanation:

6.50 is a one-time deal. we take that away once and we're done with it.

155 - 6.50 = 148.5

148.5 / 16.50 = 9

4 0
3 years ago
A<br> Find tan a.<br> r<br> √5,-√7)<br> ✓[?<br> Enter
Virty [35]

Answer:

tan(\alpha)=-\frac{\sqrt{35}}{5}

Step-by-step explanation:

Tan can be defined as: \frac{sin(\theta)}{cos(\theta)} as it simplifies to opposite/adjacent. If you know a bit about the unit circle, you'll know that the x-coordinate is going to be cos(theta) and the y-coordinate is going to be sin(theta). Since the sin(theta) is defined as opposite/hypotenuse, and the hypotenuse = 1, so sin(theta) is defined as the opposite side, which is the y-axis. Same thing goes for cos(theta), except the adjacent side is the x-axis.

Using this we can define tan

sin(\alpha)=-\sqrt{7}\\cos(\alpha)=\sqrt{5}\\\\tan(\alpha)=-\frac{\sqrt{7}}{\sqrt{5}} * \frac{\sqrt{5}}{\sqrt{5}}\\tan(\alpha)=-\frac{\sqrt{7*5}}{5}\\tan(\alpha)=-\frac{\sqrt{35}}{5}\\

8 0
2 years ago
Read 2 more answers
For which values of P and Q does the following equation have Infinity many solutions? P×+57=-75x+Q​
Semenov [28]

earrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :  

                    p*x+57-(-75*x+q)=0

In this type of equations, having more than one variable (unknown), you have to specify for which variable you want the equation solved.

Unless there is none then in that case there very well may be infinite solutions

7 0
3 years ago
Gabby opened a savings account and deposited $800.00 as principal. The
Yuri [45]

Answer:

Use the formula A = p x e^(rate x year), we have:

A = 800 x 2.71828^[(13/100) x 1] = 991.06 = ~911.1 dollar

Hope this helps!

:)

7 0
3 years ago
I need help. someone please explain to me
Alisiya [41]

Answer:

176. because 22 times

75

8 is 176

8 0
2 years ago
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