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3 years ago

In the figure below, abc is a right triangle. a + b = 150 degrees, and c + d = 35 degrees

Mathematics

1 answer:

timurjin [86]3 years ago

6 0

Um i would need more details
But i thing you would add those together

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How do I change my username because it is stuck on the email. I will give Brainliest.

Aleonysh [2.5K]

Answer:

Stated below:

Step-by-step explanation:

You can't change your Brainly username unless you want to make a new account.

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3 years ago

Read 2 more answers

What is y = 1.65x + 2.35 if x=14?

Andrej [43]

Answer:

y is 25.45

Step-by-step explanation:

y=1.65x+2.35 insert the unknown x

y=1.65(14)+2.35 open brackets by multiplication

y=23.1+2.35

y=25.45

5 0

3 years ago

Mrs. Eaton's dass is participating in the "Box Teps for Education campaign. On the first day, her

Katyanochek1 [597]

The number of tops on the 6th day based on the exponential model is 64, and the number of tops on the 6th day based on the linear model is 17.

<h3>What is an exponential function?</h3>

It is defined as the function that rapidly increases and the value of the exponential function is always a positive. It denotes with exponent $\rm y = a^x$

where a is a constant and a>1

First day class collected = 2 tops

Third day class collected = 8 tops

The exponential function can be modelled:

$\rm D(N) = 2^N$

D(1) = 2 (first day)

D(3) = 8 (third day)

D(6) = 64 (sixth day)

The linear function can be modeled:

D(N) = 3N -1

D(1) = 2 (first day)

D(3) = 8 (third day)

D(6) = 17 (sixth day)

Thus, the number of tops on 6th day based on exponential model is 64, and the number of tops on the 6th day based on the linear model is 17.

Learn more about the exponential function here:

brainly.com/question/11487261

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4 0

2 years ago

Two trains leave stations 360 miles apart at the same time and travel toward each other. One train travels at 70 miles per hour

cricket20 [7]

S=d/t   ⇒d=s*t
s=speed
d=distance
t=time

The first train :
d=x

x=70 miles/h*t   ⇒ x=70t (1)

The second train
d=360 miles - x

360 miles - x=80 miles/h*t ⇒360-x=80t   ⇒ x=360-80t (2)

therefore, with the equations (1) and (2) we have a systeme of equations:

x=70t
x=360-80t

we can solve this system of equations by equalization method.

70t=360-80t
70t+80t=360
150t=360
t=360/150=2.4 (≈2 hour 24 minutes)

Answer: the first train meet with the second train in 2 hour 24 minutes.

3 0

3 years ago

Read 2 more answers

The 10th term of an a.p is -27 and the 5th term is -12 .find the first term?

horsena [70]

Step-by-step explanation:

$a_{10} = - 27... (Given) \\\\\therefore a + 9d = - 27...... (1)\\\\a_{5} = - 12... (Given) \\\\\therefore a + 4d = - 12.......(2)\\\\$

Subtracting equation (2) from equation (1)

$a + 9d-( a + 4d )= - 27-(-12)\\\\\therefore a +9d - a-4d = - 27+12\\\\\therefore 5d = - 15\\\\\therefore d = \frac {- 15}{5}\\\\\huge \orange {\boxed {\therefore d = -3}} \\\\$

Substituting d = - 3 in equation (1), we find:

$a + 9\times (-3)= - 27\\\\\therefore a - 27 = - 27\\\\\therefore a = 27- 27\\\\\huge \red {\boxed {\therefore a = 0}}\\\\$

Hence, first term is zero.

3 0

3 years ago