All categories

2 years ago

Plz help due tonight

Mathematics

1 answer:

Fudgin [204]2 years ago

4 0

$m \angle1 + 68 \degree = 102 \degree\\m \angle1 = 102 \degree - 68 \degree \\ = 34 \degree \\ m \angle2 \: + 102 \degree = 180 \degree \\ m \angle2 \: = 180 \degree - 102 \degree \\ = 78 \degree \\$

You might be interested in

Someone please help me its urgent<br> What is the equation of the directrix

bija089 [108]

Answer:

Step-by-step explanation:

y=-1

6 0

2 years ago

Read 2 more answers

A rectangle initially has width 7 meters and length 10 meters and is expanding so that the area increases at a rate of 8 square

Tems11 [23]

Answer:

The length of rectangular is increasing at a rate 0.5714 meters per hour.

Step-by-step explanation:

We are given the following in the question:

Initial dimensions of rectangular box:

Length,l = 10 m

Width,w = 7 m

$\dfrac{dA}{dt} = 8\text{ square meters per hour}\\\\\dfrac{dw}{dt} = 40\text{ centimeters per hour} =0.4\text{ meters per hour}$

We have to find the rate of increase of length.

Area of rectangle =

$A = l\times w$

Differentiating we get,

$\displaystyle\frac{dA}{dt} = \frac{dl}{dt}w + \frac{dw}{dt}l$

Putting values, we get,

$8 = \dfrac{dl}{dt}(7) + (0.4)(10)\\\\\dfrac{dl}{dt}(7) = 8 -4\\\\\dfrac{dl}{dt} \approx 0.5714$

Thus, the length of rectangular is increasing at a rate 0.5714 meters per hour.

5 0

3 years ago

Given that f(x)=5x^3+ax^2-4x-2 and that (x-1) is a factor of f(x), find a.

stepladder [879]

Answer:

a=1

Step-by-step explanation:

Because x-1 is factor of f(x)

for x1=1, f(1)=0, then

f(1)=5*1^3+a*1^2-4*1-2=0

5*1+a*1-4-2=0

5+a-6=0

a-1=0

a=1

5 0

3 years ago

Arrange the summation expressions in increasing order of their values

Svetradugi [14.3K]

Sum of n terms = a1 (r^n-1/ (r-1)

Sum of first one = 3 * (4^5 - 1) / 3 = 1023
.. 2nd = 5 * (6^2 - 1) / 5 = 35
.. 3rd = 5 ^4 - 1 / 4 = 156
.. 4th = 4 * (5^4 - 1) / 4 = 624

So in increasing order its 2nd, 3rd, 4th and first.

3 0

3 years ago

Help me pleaseeeeeeeeeeeeeeeeeeeee

zzz [600]

Answer:

c) (-3s) - 9

Step-by-step explanation:

(-5s) + 2s - 9

-5s + 2s - 9 <== combine like terms

-3s - 9

Therefore, our answer is c.

Hope this helps!

8 0

2 years ago

Read 2 more answers