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
Readme [11.4K]
3 years ago
15

What is the value of “a”?

Mathematics
1 answer:
bonufazy [111]3 years ago
8 0

Answer:

75

Step-by-step explanation:

The angle equals 180

61+44 =105

180-105 =75

You might be interested in
Find the volume of the composite figure. please!
Irina-Kira [14]
Volume= Length * width ( aka Base ) * height 

Break up the figure into easier figures, a small square and a bigger square.

Small square- 3*2*1 = 6 cm

Large Square- 7*6*1 = 42 cm

42 + 6 = 48 cm. But wait! You have to take one more step, which is minus-ing 6 from 48. Why? Notice that there is a little area where a side of the small square meets the bigger square. That little area is worth 3 cm ( length is 3, height is 1 cm ) times 2 ( 3 cm is one side, another 3 cm is the other side from the other square ) = 6 cm.

Your total answer should be 42. ( or 48, if your teacher doesn't count the area where the squares meet/join together ).

3 0
3 years ago
Read 2 more answers
(9^(3))^(3) =<br> 9 9<br> 9 0<br> 9 6<br> 81
zmey [24]

Step-by-step explanation:

\because \:  ( {a}^{m} )^{n}  =  {a}^{m \times n}  \\  \\ \therefore ( {9}^{3} )^{3}  =  {9}^{3 \times 3}  =  {9}^{9}  \\

5 0
3 years ago
Read 2 more answers
Find j(3x^4y^7) if j(n)=n^3
qaws [65]

Answer:

Step-by-step explanation:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    3*x-(4*y-7)=0

STEP

1

:

Equation of a Straight Line

1.1     Solve   3x-4y+7  = 0

Tiger recognizes that we have here an equation of a straight line. Such an equation is usually written y=mx+b ("y=mx+c" in the UK).

"y=mx+b" is the formula of a straight line drawn on Cartesian coordinate system in which "y" is the vertical axis and "x" the horizontal axis.

In this formula :

y tells us how far up the line goes

x tells us how far along

m is the Slope or Gradient i.e. how steep the line is

b is the Y-intercept i.e. where the line crosses the Y axis

The X and Y intercepts and the Slope are called the line properties. We shall now graph the line  3x-4y+7  = 0 and calculate its properties

Graph of a Straight Line :

 

Calculate the Y-Intercept :

Notice that when x = 0 the value of y is 7/4 so this line "cuts" the y axis at y= 1.75000

 y-intercept = 7/4  =  1.75000

Calculate the X-Intercept :

When y = 0 the value of x is -7/3 Our line therefore "cuts" the x axis at x=-2.33333

 x-intercept = -7/3  = -2.33333

Calculate the Slope :

Slope is defined as the change in y divided by the change in x. We note that for x=0, the value of y is 1.750 and for x=2.000, the value of y is 3.250. So, for a change of 2.000 in x (The change in x is sometimes referred to as "RUN") we get a change of 3.250 - 1.750 = 1.500 in y. (The change in y is sometimes referred to as "RISE" and the Slope is m = RISE / RUN)

   Slope     =  1.500/2.000 =  0.750

Geometric figure: Straight Line

 Slope = 1.500/2.000 = 0.750

 x-intercept = -7/3 = -2.33333

 y-intercept = 7/4 = 1.75000

4 0
3 years ago
The concentration of a drug in the bloodstream C(t) at any time t, in hours, is described by the equationC(t)=100t/t^2+25where t
alisha [4.7K]

Answer:

It will take 5 hours until it reaches its maximum concentration.

Step-by-step explanation:

The maximum concentration will happen in t hours. t is found when

C'(t) = 0

In this problem

C(t) = \frac{100t}{t^{2} + 25}

Applying the quotient derivative formula

C'(t) = \frac{(100t)'(t^{2} + 25) - (t^{2} + 25)'(100t)}{(t^{2} + 25)^{2}}

C'(t) = \frac{100t^{2} + 2500 - 200t^{2}}{(t^{2} + 25)^{2}}

C'(t) = \frac{-100t^{2} + 2500}{(t^{2} + 25)^{2}}

A fraction is equal to zero when the numerator is 0. So

-100t^{2} + 2500 = 0

100t^{2} = 2500

t^{2} = 25

t = \pm \sqrt{25}

t = \pm 5

We use only positive value.

It will take 5 hours until it reaches its maximum concentration.

4 0
3 years ago
Help me plz.................
EastWind [94]

Answer:

1/8  cup

Step-by-step explanation:

x = 7/8 - 1/4 - 1/2

x = 7/8 - 2/8 - 4/8

x = 1/8  

5 0
3 years ago
Read 2 more answers
Other questions:
  • A surveyor is standing 50 feet from the base of a building. The angle of elevation to the top of the building is 60°. Approximat
    15·1 answer
  • Find two nontrivial functions f(x) and g(x) so that f(g(x)) = (-6-3x)^6
    7·1 answer
  • Simplify<br>7 x 7 x 79<br>7x7​
    7·2 answers
  • A regular polygon has possible angles or rotational summetry of 20, 40, and 80 degrees. How many side does the polygon have?
    10·2 answers
  • Regular hexagon ABCDEF rotates 240° counterclockwise about its center to produce hexagon A'B'C'D'E'F'. Which points will A' and
    10·1 answer
  • HElppppppppppppppppppppppppppppppppp
    8·2 answers
  • 10. please for 25 points​
    13·2 answers
  • 65 and 40%how many left<br>​
    12·1 answer
  • 2. Is the point (-3,-4) the solution to the system of<br> equations: SHOW ALL YOUR WORK.
    9·2 answers
  • Watch help videoA shipping container will be used to transport several 50-kilogram crates across thecountry by rail. The greates
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!