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2 years ago

How to see warnings on brainly? I got one, but don't know why. it is not in my notifications.

Mathematics

2 answers:

kirill [66]2 years ago

8 0

Answer:

If its not in Notifications i don’t know where it would be.

Step-by-step explanation:

sineoko [7]2 years ago

4 0

Answer:

Oh well your warning stuff only come in your notifications.. But you can see how many you got when you go to your profile and scroll all the way down.

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Answer the Blanks:

vfiekz [6]

Answer:

1. 90°

2. 90°

3. 40°

4. 45°

5. 45°

Step-by-step explanation:

Given: ΔABC,

CD⊥AB,

m∠A=50°,

m∠ACB=85°

Solution:

1. ∠ADC is a right ange, because CD⊥AB, so

$m\angle ADC=90^{\circ}$

2. ∠CDB is a right ange, because CD⊥AB, so

$m\angle CDB=90^{\circ}$

3. Consider triangle ACD. The sum of the measures of all interior angles is always 180°, so

$m\angle A+m\angle ADC+m\angle ACD=180^{\circ}\\ \\50^{\circ}+90^{\circ}+m\angle ACD=180^{\circ}\\ \\m\angle ACD=180^{\circ}-50^{\circ}-90^{\circ}=40^{\circ}$

4. By Angle Addition Postulate,

$m\angle ACD+m\angle BCD=m\angle ACB\\ \\40^{\circ}+m\angle BCD=85^{\circ}\\ \\m\angle BCD=85^{\circ}-40^{\circ}=45^{\circ}$

5. Consider triangle ABC. The sum of the measures of all interior angles is always 180°, so

$m\angle A+m\angle ACB+m\angle B=180^{\circ}\\ \\50^{\circ}+85^{\circ}+m\angle B=180^{\circ}\\ \\m\angle B=180^{\circ}-50^{\circ}-85^{\circ}=45^{\circ}$

6 0

3 years ago

Factorise 25x+15 mate

Ivanshal [37]

Answer:

5(5x+3)

Step-by-step explanation:

25x=5*5x

15=5*3

5*5x+5*3

Factor out the Common 5

5(5x+3)

6 0

3 years ago

Frank bought a pair of gloves for $9.95 and a hat for $5.25. What is the best estimate of much he spent?

viktelen [127]

Answer:

$ 15.00

Step-by-step explanation:

9.95 is JUST about 10

5.25 is close to 5

10 + 5 = 15

7 0

2 years ago

HELP ASAP How many times will the digit '3' appear if we write all whole numbers from 1 to 99?

Liula [17]

Answer:3,13,23,30,31,32,33,34,35,36,37,38,39,43,53,63,73,83,93

Step-by-step explanation:

You gotta count I did this quick

8 0

3 years ago

Read 2 more answers

Simplify (1/3x+3)=5-x The answers 3/4 I just don’t know how to solve it.

omeli [17]

(1/3x+3)=5-x

multiply both sides by three

1x+9=15-3x

add 3x to both sides

4x+9=15

subtract 9 from both sides

4x=3

divide both sides by 4 to isolate x

x=3/4

4 0

3 years ago