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3 years ago

Can anyone help me with this?

Mathematics

1 answer:

Zina [86]3 years ago

6 0

Answer:

b = 15°

Step-by-step explanation:

The base angles (c = ∠QRP) of ΔQPR are such that the sum of angles of the triangle is 180°. Since the triangle isosceles, the base angles are equal:

2c +60 = 180

2c = 120

c = 60 . . . . . . degrees; the base angle of ΔQPR

Likewise, the base angle (∠SRP) of ΔSPR is ...

a = (180 -90)/2 = 45 . . . . . degrees

The measure of angle b is the difference between the larger and smaller base angles:

b = c -a = 60° -45°

b = 15°

You might be interested in

Which two numbers multiply to 60 and add to -2?

USPshnik [31]

$xy=60\\
x+y=-2\\\\
xy=60\\
x=-y-2\\\\
(-y-2)y=60\\
-y^2-2y-60=0\\
y^2+2y+60=0\\
y^2+2y+1+59=0\\
(y+1)^2=-59
$

There are no such numbers in real numbers.
Do you perhaps want a solution in complex numbers?

8 0

3 years ago

24 to 18 is the same as (ratio)

Dmitriy789 [7]

Answer:

3:4

Step-by-step explanation:

18/24 by 6 meaning

18 divided by 6 =3

24 divided by 6=4

So your ratio is 3:4

Can I please get a brainlist thanks

6 0

3 years ago

Help i don’t know how to find the answer

forsale [732]

Answer:

what grade are you n?

3 0

3 years ago

Can someone help me

Alexandra [31]

Answer:

30?

Step-by-step explanation:

8 0

3 years ago

Abby uses base 10 blocks to show 1,109. She has no thousands cubes and only 9 flats, as shown. Draw longs and units on the chart

Vinvika [58]

Answer:

20 longs, 9 units more than the 9 flats

Step-by-step explanation:

If Abby has 9 flats, she has 900 blocks of the 1109 she needs. The remaining 209 can be represented by ...

20 longs

9 units

_____

Comment on the question

We cannot see the model Abby has put together so far, so we don't know exactly what it takes to finish it. Any longs or units she already shows must be subtracted from the numbers above.

4 0

3 years ago