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svp [43]
3 years ago
9

Please tell me if my answer is correct. and if its not please tell me the answer

Mathematics
2 answers:
Sergio039 [100]3 years ago
6 0

Answer:

Angle 1 and angle 2 are complementary.

Step-by-step explanation:

Complementary angles are (in this case 2) angles that add up to ninety degrees.



ipn [44]3 years ago
6 0

Answer:

Angle 1 and 2 are complementary

Step-by-step explanation:

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How many percent of 70 is 68?
ANEK [815]
So percent is parts out of 100 so x%=x/100

68/70
divide totaly
0.9714/1
multiply by 100/100 to make bottom 100
97.1% is the answer

3 0
3 years ago
I need help ASAP (20points)
Leto [7]

y = x^2 + 2x...eqn 1

y = 3x + 20...eqn 2

subst for y in eqn 1...

=> x^2 +2x = 3x +20

=> x^2 - x - 20 =0

=> (x-5) (x+4) =0

=> x = 5 or -4

for x =5, y = 35 (sub for x in eqn 1 or 2)

for x = -4, y = 8 (sub for x in eqn 1 or 2)

5 0
3 years ago
What are the roots of the polynomial equation x^2+8x-48=0
____ [38]

<span> Given polynomial x^2+8x-48 = 0</span>

<span>x^2+12x-4x-48 = 0</span>

<span>x(x+12)-4(x+12) = 0</span>

<span>(x+12)(x-4) = 0</span>

<span>x+12 = 0</span>

Subtract 12 from each side.

<span>x+12-12 = 0-12</span>

<span>x = -12</span>

<span>and x-4 = 0</span>

Add 4 to each side.

<span>x-4+4 = 0+4</span>

<span>x = 4</span>

<span>Roots are -12,4.</span>

4 0
3 years ago
Jake completed a marathon race in 3 hours and 12 minutes. What would be Jake's running time as a decimal?
VikaD [51]

\text{Given that Jake completed a marathon race in 3 hours and 12 minutes.}\\&#10;\\&#10;\text{we need to find this time in decimals. so we will convert 12 minutes into hours}\\&#10;\\&#10;\text{We know that there are 60 minutes in 1 hour. }\\&#10;\\&#10;\text{so in 1 minute there will be}=\frac{1}{60 }\text{ hour}

\text{hence in 12 minutes we have}=\frac{1}{60}\times 12=\frac{1}{5}=0.2 \text{ hours}\\&#10;\\&#10;\text{hence the Jake's running time is}=3\text{hours + 12 minute}\\&#10;\\&#10;=3\text{ hours}+0.2 \text{ hours}\\&#10;\\&#10;=3.2 \text{ hours}

Hence, Jake's running time in decimal is: 3.2 hours

4 0
3 years ago
Im trash at math sorry
balu736 [363]

Answer:

Step-by-step explanation:

Use vertical angles to help solve the problem. Angles that are across from each other are congruent. For exmaple,  <2 = 85 degrees because the angle across from it is 85 degrees. I assume angle 1 is 95 degrees, so angle 3 would also be 95 degrees.

8 0
2 years ago
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