All categories

2 years ago

Find the missing angle m∠R=

Mathematics

1 answer:

Oxana [17]2 years ago

8 0

Answer:

R = 90

Step-by-step explanation:

Triangles will always equal 180 degrees. If you add 61 + 29 = 90. If two of the three angles already equal 90 degrees, then you would subtract 180 - 90. Therefore, the remaining angle would have to be 90 degrees.

You might be interested in

Sold rose bouquets and chocolate hearts for Valentin

GenaCL600 [577]

Answer:

do u want them all answered

Step-by-step explanation:

3 0

3 years ago

Consider the given function and the given interval. f$x$ = (x - 7)**2 text(, ) [5 text(, ) 11] (a) Find the average value fave

Jet001 [13]

a. $f$ has an average value on [5, 11] of

$f_{\rm ave}=\displaystyle\frac1{11-5}\int_5^{11}(x-7)^2\,\mathrm dx=\frac{(x-7)^3}{18}\bigg|_5^{11}=\frac{4^3-(-2)^3}{18}=4$

b. The mean value theorem guarantees the existence of $c\in(5,11)$ such that $f(c)=f_{\rm ave}$ . This happens for

$(c-7)^2=4\implies c-7=\pm2\implies c=9\text{ or }c=5$

8 0

3 years ago

Evaluate the expression (x + 3)(y - 2) , if x = -2, and y= 6

Butoxors [25]

Answer:

The answer is 4

Step-by-step explanation:

Given,

$x=-2,\,y=6$

Now, the expression

∴ $(x+3)(y-2)\\=>(-2+3)(6-2)\\=>(1)(4)\\4$

hope you have understood this...

pls mark my answer as the brainliest

6 0

3 years ago

Plz help with the math worth 21 points

irinina [24]

Answer:

As there is one math problem over there.

Lets see the question first:

It says that "A hair dryer is rated $1200\ W$ ,if you use the dryer for $0.25\ h$ .How much electric energy do you use ?"

Final answer = Electic energy $=0.3\ kW\ h$

Step-by-step explanation:

Electrical Energy $E=Power \times time$ .

The total amount of electrical energy used depends on the total power used by the electrical device and the total time they are used for.

So we have been given the power of the hair dryer $=1200\ W =\frac{1200}{1000}=1.2\ kW$

Now the time it has been use for $=0.25\ hrs$

To calculate electric energy we will multiply both the terms.

Electric energy $=0.12 \times 0.25 =0.3\ kW\ h$

So electric energy used for the hairdryer is = $0.3\ kW\ h$

7 0

3 years ago

Earth travels about 66,600 miles per hour as it revolves around the Sun. How far does Earth travel in 15 seconds?

o-na [289]

Step-by-step explanation:

Miles travelled in 1h=66600

Miles travelled in 1 sec=66600/3600

=18.5miles

Miles travelled in 15 seconds =18.5×15

=277.5miles

4 0

3 years ago

Read 2 more answers