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
Naddika [18.5K]
3 years ago
15

Expand (2x+5)give answer plz​

Mathematics
1 answer:
emmasim [6.3K]3 years ago
7 0

Answer:

2(x+5)

not sure but this is what I got

You might be interested in
⚠️ILL GIVE BRANLIEST!
SSSSS [86.1K]

Answer:

c

Step-by-step explanation:

3 0
3 years ago
lena wants to buy a computer that costs $900 dollars. she already. has $473 dollars saved. her grandmother will pay her $7 an ho
Rama09 [41]
If you would like to know how many hours will Lena need to work before she can afford to buy the computer, you can calculate this using the following steps:

$900 - $473 = $427

$427 / $7 = 61 hours of yard work

Result: Lena will need to work 61 hours before she can afford to buy the computer.
6 0
3 years ago
Read 2 more answers
Football The function defined by h = -5t² + 20t + 2 indicates the approximate height h of a soccer ball. in meters according to
timama [110]
3 seconds for the second question

4 0
3 years ago
Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s). Complete the st
Zina [86]

Question:

If cos(θ) =-8/17 and sin(θ) is negative, then sin(θ) = ___  and tan(θ) =___.

Answer:

Sin\theta = \frac{-15}{17}

Tan\theta = \frac{15}{8}

Step-by-step explanation:

Given

cos(θ) =-8/17

Required

sin(θ) = __

tan(θ) =__

The first step is to determine the length of the third side

Given that

cos(\theta) = \frac{Adj}{Hyp}

Where Adj and Hyp represent Adjacent and Hypotenuse

cos(\theta) = \frac{-8}{17}

By comparison

Adj = -8\ and\ Hyp = 17

Using Pythagoras

Hyp^2 = Adj^2 + Opp^2

By Substitution

17^2 = (-8)^2 + Opp^2

289 = 64 + Opp^2

Subtract 64 from both sides

289 - 64 = 64 - 64 + Opp^2

225 = Opp^2

Take square roots of both sides

\sqrt{225} = \sqrt{Opp^2}

\sqrt{225} = Opp

15 = Opp

Opp = 15

The question says that sin(θ) is negative; This implies that θ is in the third quadrant and as such

Opp = -15

From trigonometry

Sin\theta = \frac{Opp}{Hyp}

Sin\theta = \frac{-15}{17}

Also from trigonometry

Tan\theta = Sin\theta / Cos\theta

Tan\theta = \frac{-15}{17} / \frac{-8}{17}

Tan\theta = \frac{-15}{17} * \frac{-17}{8}

Tan\theta = \frac{-15 * -17}{17  * 8}

Tan\theta = \frac{15 * 17}{17  * 8}

Tan\theta = \frac{15}{8}

5 0
3 years ago
What weight of dry substance is in 150g of a 3% substance solution? What weight of an 8% solution can we have with the same weig
Leto [7]
<span>4.5 g 56.25 g Since the only type of measurement mentioned in this question is weight or mass, I'll assume that the percentage concentration is % m/m (mass/mass). For that type of concentration measurement, simply multiple the percentage by the total mass to get the mass of the desired substance. So 150 g * 3% = 150 g * 0.03 = 4.5g For the amount of 8% solution with the same amount of dry substance, there's 2 ways of calculating the mass of solution. First, use the ratio of percentages, multiplied by the mass of the original solution to get the desired amount of new solution: 3/8 * 150 g = 56.35 g Or calculate it from scratch, like 4.5/X = 8/100 450/X = 8 450 = 8X 56.25 = X In both cases, the result is that you desire 56.25 grams of 8% solution.</span>
4 0
3 years ago
Other questions:
  • (2m+3)(4m-3)=0 solve by factoring
    15·1 answer
  • -p - 8p - 10 - 8p simply
    11·1 answer
  • Which expression is equivalent to 84+48
    5·1 answer
  • Find the area of this triangle. Round the sine value to the nearest hundredth. Round the area to the nearest tenth of a centimet
    12·2 answers
  • Manuel bought a balloon (that is a perfect sphere) with a radius of 2 cm. He wanted his balloon to be bigger, so he blew 2 big b
    13·2 answers
  • A soup can in the shape of a cylinder is 4 inches tall and has a radius of 2 inches
    5·2 answers
  • A scientist builds a Mars rover that can travel 4.9 centimeters per second on flat ground.
    6·2 answers
  • Factor of <br> −21x^2+2x+8
    12·1 answer
  • ABCD is a trapezium<br><br> Calculate the area of ABCD
    10·1 answer
  • I DONT UNDERSTANDDD!!!!!!!!!!!!
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!