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
Alex_Xolod [135]
3 years ago
9

Simplify this algebraic expression completely. 10y – 3(y + 5) A. 7y – 15 B. 7y – 5 C. 7y + 2 D. 7y + 5

Mathematics
1 answer:
Kipish [7]3 years ago
6 0
Hey! :)

10y-3(y+5)

Distribute the -3. 

-3*y= -3y  -3*5= -15

10y-3y-15

7y-15

"A" is the answer.

~'Manda
You might be interested in
I don't really understand my math Homework. It's solving problems using equations.
Nataliya [291]
I'll gladly help you, but I can't really read that.
8 0
3 years ago
Refer to the data above. What number represents the slope of the line, if the points on the graph above were joined?
Dmitrij [34]

Answer:

slope = 40

Step-by-step explanation:

Calculate the slope m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (2, 80) and (x₂, y₂ ) = (4, 160) ← 2 points on the line

m = \frac{160-80}{4-2} = \frac{80}{2} = \frac{40}{1} = 40

4 0
3 years ago
I need to figure this out for a quiz in APEX. I can get the rest if I understand how to do this one.
KIM [24]
The answer is b
(-1,3,5)

Hope this helps!
8 0
3 years ago
A ball is thrown upward from ground level. Its height h, in feet, above the ground after t seconds is h-48t -16t^2.
Marat540 [252]

Answer:

36 feet.

Step-by-step explanation:

We have been given that a ball is thrown upward from ground level. Its height h, in feet, above the ground after t seconds is h(t)=-48t -16t^2. We are asked to find the maximum height of the ball.

We can see that our given equation is a downward opening parabola, so its maximum height will be the vertex of the parabola.

To find the maximum height of the ball, we need to find y-coordinate of vertex of parabola.

Let us find x-coordinate of parabola using formula x=-\frac{b}{2a}.

x=-\frac{-48}{2(-16)}

x=-\frac{48}{32}

x=-\frac{3}{2}

So, the x-coordinate of the parabola is -\frac{3}{2}. Now, we will substitute x=-\frac{3}{2} in our given equation to find y-coordinate of parabola.

h(t)=-48t -16t^2

h(-\frac{3}{2})=-48(-\frac{3}{2})-16(-\frac{3}{2})^2

h(-\frac{3}{2})=-24(-3)-16(\frac{9}{4})

h(-\frac{3}{2})=72-4*9

h(-\frac{3}{2})=72-36

h(-\frac{3}{2})=36

Therefore, the maximum height of the ball is 36 feet.

3 0
3 years ago
Quick help pls thanks
Tems11 [23]

Answer:

the internal angle sum of a Triangle is

<u>Option B) </u><u> </u><u>180°</u>

6 0
3 years ago
Read 2 more answers
Other questions:
  • Alison knits 1/10 of scarf in 4/5 of an hour. what fraction of a scarf can alison knit in 1 hour? and how do u solve it?
    12·2 answers
  • Write each product as a polynomial(a+2)(a+3)​
    8·1 answer
  • the sum of the measure of angle x and angle y is 90 if the measure if angle x is 30 lessthan twice the measure of angle y what i
    7·1 answer
  • Estimate the number 78% of 112
    12·2 answers
  • Tina has 3/5 pound erase she will use 2/3 of it to make fried rice for her family how much rice with Tina used to make fried ric
    6·2 answers
  • Helppppppppppppppppppppppppp
    7·1 answer
  • Gaurav takes 15 rounds of a rectangular park whose length is twice its breadth. If the total distance covered by Gaurav is 900m
    9·1 answer
  • The figures below are similar with a scale factor of 3:2. Find the perimeter of figure B.
    5·1 answer
  • 1. A rectangular garden has a perimeter of
    12·1 answer
  • a game where two players each throw two dice each. if any one die matches the other, you win a dollar. if there is no match, you
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!