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
Arada [10]
3 years ago
10

ITS QUESTION 21 !!!! Please help !

Mathematics
2 answers:
s2008m [1.1K]3 years ago
7 0

He doesn't know where x is

____ [38]3 years ago
6 0

Answer:

Should the line be dotted since X is not less than or equal to -3.  The start point is left unshaded which is correct since x is not less than or equal to -3.

Step-by-step explanation:

You might be interested in
Write 0.00000123 in scientific notation ?
Lubov Fominskaja [6]
In a scientific notation, you have to put a decimal right after the first number (unless it is a zero). How many times you move the decimal from its original spot determines the answer. If you move the decimal forward that means you put a negative number
<span>
0.00000123 = 1.23 (moved the decimal point forward 6 times, so the answer is --->)
</span>1.23*10^{-6}<span>

</span>
6 0
4 years ago
A ball is launched upward from a height 40 feet above ground level. The ball’s height at t seconds is given by -16t^2=128=40 .
Nesterboy [21]

Answer:

The ball will be at 100 feet at time x=0.5 sec and at time x=7.5 sec

Step-by-step explanation:

<u><em>The correct question is</em></u>

A ball is launched upward from a height 40 feet above ground level. the ball's height at t seconds is given by h(t)=-16t^2+128t+40 At what time(s) will the ball be at 100 feet?

we have

h(t)=-16t^{2}+128t+40

so

For h(t)=100 ft

substitute in the equation and solve for x

-16t^{2}+128t+40=100

-16t^{2}+128t-60=0

The formula to solve a quadratic equation of the form

ax^{2} +bx+c=0

is equal to

x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}

in this problem we have

-16t^{2}+128t-60=0

so

a=-16\\b=128\\c=-60

substitute in the formula

x=\frac{-128(+/-)\sqrt{128^{2}-4(-16)(-60)}} {2(-16)}

x=\frac{-128(+/-)\sqrt{12,544}} {-32}

x=\frac{-128(+/-)112} {-32}

x=\frac{-128(+)112} {-32}=0.5

x=\frac{-128(-)112} {-32}=7.5

therefore

The ball will be at 100 feet at time x=0.5 sec and at time x=7.5 sec

7 0
4 years ago
QUESTION: What fraction of 1/2 is 1/3?
Oksana_A [137]

Answer:

1/6

Step-by-step explanation:

questions which include 'of 'usually means "×" (multiplication sign) so when u multiply them it gives 1/6

5 0
3 years ago
!ANSWER FAST! <br><br> !ANSWER FAST!<br><br> !ANSWER FAST!
Anna007 [38]

Answer:

Leo = NO

Paola = YES

Matthew = NO

Jasmine = YES

Step-by-step explanation:

Unit rate is .....1/3 = 1 hour

HOPE THIS HELPS

PLZZ MARK BRAINLIEST

8 0
4 years ago
Read 2 more answers
What is the value of y?
Tanya [424]

Answer:

A. 44°

Step-by-step explanation:

180° (straight line) - 88°

= 92

180° - 92°

= 88°

2y = 88°

y = 44°

3 0
3 years ago
Read 2 more answers
Other questions:
  • 1) Given the data 12, 39, 21, 18, 24, 17, 12, 25:
    12·1 answer
  • Exhibit a population of ten integers having mean=20 and variance=4
    9·1 answer
  • Use the Rational Zeros Theorem to write a list of all possible rational zeros of the function.f(x) = 3x3 + 39x2 + 39x + 27
    11·1 answer
  • A box of 35 cowboys crunch cookies costs $5.40 Matt has $2.25 off coupon if Matt uses his coupon what will be the price per cook
    10·1 answer
  • Franklin bought 2 pencils for $0.79 each, 4 notebooks for $3.29 each, and a comic book for $1.29. How much change will he receiv
    15·1 answer
  • Factor completely 512x^3+2197y^3
    5·1 answer
  • A box contains 8 books. It is 1/6 full. If the box were completely full, how many books would be in the box? A) 14 books B) 48 b
    9·1 answer
  • Use Euler’s approximation to determine x(1.75), the value of a function at t = 1.75, given increments of time of 0.25, x(1) = 1,
    15·1 answer
  • Identify the conditionals and truth values implied by the following biconditional. Select all that apply.
    11·1 answer
  • Ft. If the equation for height as a
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!