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Ket [755]
3 years ago
6

Do not change the order of the numbers. You may put two numbers together to form a two-degit number.

Mathematics
1 answer:
LenKa [72]3 years ago
7 0
1 + 2 + 3 + 4 + 5 + 67 + 8 = 90

I think this is what you mean right?
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Writing to Learn x- and y-intercepts
riadik2000 [5.3K]

The x and y intercepts of a line are when y=0 and x=0 respectively.

  • c and d are the x and y intercepts because they represent C/A and B/A in the standard linear equation
  • The x and the y intercepts are related to c and d because they represent the values of the equation when y and x equals 0 respectively.

The given equation is:

\frac xc + \frac yd = 1

<u>(1) Why c and d are the intercepts</u>

We have:

\frac xc + \frac yd = 1

Multiply through by cd

cd \times \frac xc + cd \times \frac yd = cd \times1

dx + cy = cd

A linear equation is represented as:

Ax + By = C

Where:

\frac CA \to x intercept

\frac BA \to y intercept

So, by comparing Ax + By = C to dx + cy = cd

\frac CA \to d \to The x-intercept

\frac CB \to c \to The y-intercept

<u>(b) How the intercepts are related to c and d?</u>

In (a) above, we have:

\frac CA \to d \to The x-intercept

\frac CB \to c \to The y-intercept

When x = 0

We have:

dx + cy = cd

d \times 0 + cy = cd

cy = cd

Divide by c

y = d ---- the y-intercept

When y = 0

We have:

dx + cy = cd

dx + c \times 0 = cd

dx = cd

Divide by d

x =d ---- the x-intercept

Read more about intercepts at:

brainly.com/question/13593488

7 0
3 years ago
Please help me with this question image below 15 points will be awarded
ivanzaharov [21]

Answer:

the fourth answer is correct

3(8+3)

You distribute the 3 to the 8 to get 24 and the 3 to the other 3 to get 9, which then equals 24+9, which was the original problem

5 0
3 years ago
I need help with this
Stells [14]

Answer:

AB = 21

Step-by-step explanation:

So we have two triangles (AEB and ADC), and they're similar by AA

Now, you can find the ratio of similitude by checking AE/AD which is 14/26 = 7/13

AB/AC = 7/13

Take AB as x aight

x/x+18 = 7/13

x=21

5 0
3 years ago
20. Bob had 7/8 pack of construction paper. If he used 1/5 of the paper to 5 points
tekilochka [14]

Answer:

3

Step-by-step explanation:

he has 7/8 paper divided by 1/5 paper it takes to make the paper plane, it equals 3.5. Three whole ones

4 0
3 years ago
What is the frequency heard by a person driving at 15 m/s toward a blowing factory whistle (800. Hz) if the speed of sound is 34
bija089 [108]

Answer:

Answer:

835.29 Hz

Explanation:

When moving towards the source of sound, frequency will be given by

f*=f(vd+v)/v

Where f is the freqiency of the source, vd is the driving speed, v is the speed of sound in air, f* is the inkown frequency when moving forward.

Substituting 800 Hz for f, 340 m/s for v and 15 m/s for vd then

f*=800(15+340)/340=835.29411764704 Hz

Rounded off, the frequency is approximately 835.29 Hz

ı hope ıts true

Step-by-step explanation:

5 0
3 years ago
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