1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
deff fn [24]
3 years ago
7

Shawna and her best friend Keisha go shopping. The function p(t) = 3x +2x-4x2+ 21 represents how much money each girl spent base

d on the number of hours they were shopping. If Shawna and Keisha each go shopping for 2 hours, how much money did they spend together?
Mathematics
1 answer:
NNADVOKAT [17]3 years ago
3 0

Answer:

\$30

Step-by-step explanation:

we have

p(t)=3x+2x-4x^{2}+21

<em>Find the amount of money that each girl spent</em>

For t= 2 hours

p(2)=3(2)+2(2)-4(2)^{2}+21

p(2)=10-16+21

p(2)=\$15

<em>Find the amount of money that they spend together</em>

Multiply by 2 the amount of money that each girl spent

(2)\$15=\$30

You might be interested in
Correct answers only!
alina1380 [7]

Answer:

$39

Step-by-step explanation:

Using the given formula :

I = P × R × T

I = 30 × 10/100 × 3

I = $9

She have = 30 + 9 = $39

3 0
3 years ago
What is the equation of a line perpendicular to y=-2/5X-1 that passes through (2,-8)
AysviL [449]

Answer:

y=\frac{5}{2}x-13

Step-by-step explanation:

Given the equation

y=-\frac{2}{5}x-1

comparing the equation with the slope-intercept formy=mx+b

Here,

  • m is the slope
  • b is the intercept

so the slope of the line is m = -2/5

As we know that the slope of the perpendicular line is basically the negative reciprocal of the slope of the line,

so  the slope of the perpendicular line will be: 5/2

Therefore, the point-slope form of the equation of the perpendicular line that goes through (2,-8) is:

y-y_1=m\left(x-x_1\right)

y-\left(-8\right)=\frac{5}{2}\left(x-2\right)

y+8=\frac{5}{2}\left(x-2\right)

subtract 8 from both sides

y+8-8=\frac{5}{2}\left(x-2\right)-8

y=\frac{5}{2}x-13

8 0
3 years ago
Its my birthday soon, im turning 13 where would a fun place to go to
irinina [24]

Answer:

PAINTBALL

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Check all the statement(s) that are true about the polynomial function graphed.
slava [35]
The true statements are:

2 - we can tell this by looking at the far right of the graph, as the slope is going downwards, therefore the leading coefficient must be negative

3 - this is a cubic, meaning its degree is 3

6 - by looking at the graph, we can see that there are 3 points where it cuts the x axis, hence 3 real zeros

7 - even multiplicity is where the curve "bounces off" the x axis and does not cross it. This curve have no zeros with even multiplicity

Hope this helped!
7 0
4 years ago
Read 2 more answers
Verify seca(1-sina)(seca+tana)=1
beks73 [17]
Seca(1-sina)(seca+tana)=1
Left hand side
=(1-sina) (seca +tana) / cosa
=seca +tana - sinaseca - sinatan / cosa
=seca + tana -tana -(sin^2a/cosa) / cosa
=(1/cosa - sin^2a/cosa) / cosa
= (1-sin^2a / cosa) / cosa
= (1-sin^2a)/ (cos^2a)
=1 (verified)
5 0
4 years ago
Read 2 more answers
Other questions:
  • If y varies directly as the x^2 and y = 200 when x = 5, what is the value of y when x = -3?
    6·1 answer
  • Round 38496 to the nearest thousand
    5·1 answer
  • A city zoo builds an enclosure for birds in the shape of a cone with the dimensions shown. There are 42 birds contained in the e
    10·2 answers
  • The larger number is 18 more than twice the smaller. If the sum of the two numbers is 93, find both numbers
    10·1 answer
  • (X+1)(x+8) in standard form
    9·2 answers
  • Aiden built a cone shaped volcano for a school science project. The volcano has a base diameter of 32 cm and a slant height of 4
    7·1 answer
  • Can anyone figure this problem oit
    14·1 answer
  • Write each fraction as a decimal<br> 3 15/44
    5·1 answer
  • 5/6 x 3/20 as a fraction
    10·1 answer
  • Anyone help ASAP pls!!
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!