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
Anastasy [175]
2 years ago
11

Please help, make sure to do a step by step so i'm not cheating, i just need some help .

Mathematics
1 answer:
sashaice [31]2 years ago
8 0
If I am correct it should be the second one
You might be interested in
Prompt:
Vadim26 [7]

Answer:

Her answer is wrong because she the object cannot hit the ground at negative seconds. She could’ve have used other methods because she used the quadratic formula. The advantages is that it works for every situation. The disadvantages is that it takes longer. She should’ve used a different method.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Dal
iogann1982 [59]

Answer:a

Step-by-step explanation:

6 0
3 years ago
Margaret has 16 yards of fabric and she is making dresses for z doll write the expression for the length of fabric used for each
emmasim [6.3K]
<h3>The expression for the length of fabric used for each doll is \frac{16}{z}\ yards</h3>

<em><u>Solution:</u></em>

Given that,

Margaret has 16 yards of fabric

she is making dresses for z doll

Therefore,

Total length of fabric = 16 yards

Number of dresses = z dolls

Therefore,

\text{ length of fabric used for each doll } = \frac{ \text{ Total length of fabric }} {\text{ z dolls }}\\\\\text{ length of fabric used for each doll } = \frac{16}{z}\ yards

Thus, the expression for the length of fabric used for each doll is \frac{16}{z}\ yards

7 0
3 years ago
How do you find X and Y?<br> 4y + 5z = 60<br> 5x + 3y = 60<br> 4x + 3z = 60
oee [108]

Answer:

1. y=5    x=8

2. x=9     y=5

3. x=12    z=4

Step-by-step explanation:

1.    4(5)+5(8)=60

2.   5(9)+3(5)=60

3.   4(12)+3(4)=60

6 0
2 years ago
Please help ASAP!
Kruka [31]

First, recall that

\sin(-\theta)=-\sin\theta

So if \sin(-\theta)=\dfrac15, then \sin\theta=-\dfrac15.

Second,

\tan\theta=\dfrac{\sin\theta}{\cos\theta}

We know that \tan\theta>0 and \sin\theta, which means we should also have \cos\theta.

Third,

\sin^2\theta+\cos^2\theta=1\implies\cos\theta=\pm\sqrt{1-\sin^2\theta}

but as we've already shown, we need to have \cos\theta, so we pick the negative root.

Finally,

\tan\theta=\dfrac{\sin\theta}{\cos\theta}\iff\dfrac6{\sqrt{12}}=\dfrac{-\frac15}{\cos\theta}\implies\cos\theta=-\dfrac1{5\sqrt3}

Unfortunately, none of the given answers match, so perhaps I've misunderstood one of the given conditions... In any case, this answer should tell you everything you need to know to find the right solution from the given options.

6 0
3 years ago
Other questions:
  • 11000 is compounded semiannually at a rate of 12% for 21 years. Find the total amount in the compound interest account
    14·1 answer
  • a box of 60 tissues has a length of 11 cm , a width of 10.5 cm and a height of 13.5 cm. find the volume of the box of tissues
    7·1 answer
  • What is the volume, to the nearest whole cubic inch, of a cylinder with a height of 10 inches and a radius of 8 inches
    11·1 answer
  • ,,,,,??,??,,,,,,,,,,,,,,,,
    10·1 answer
  • Antonio made a scale model of a building. The model's scale is 1 inch to 235 feet and its height is 3.5 inches. What is the exac
    9·2 answers
  • In the lab, Teresa has two solutions that contain alcohol and is mixing them with each other. She uses 4 times as much
    11·2 answers
  • The time to fly between New York City and Chicago is uniformly distributed with a minimum of 120 minutes and a maximum of 150 mi
    12·1 answer
  • Divide. help due its 11:59 tonight
    5·1 answer
  • I need help with this !! chart
    5·1 answer
  • Answers need to be fractions, if they are not whole numbers. No decimals
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!