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Gennadij [26K]
3 years ago
5

+ 11ab - 10b2

Mathematics
1 answer:
Leviafan [203]3 years ago
6 0
Can you help me with my stuff please
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7. What does the abbreviation CPCTC mean?
kykrilka [37]
It is "Corresponding parts of a congruent triangle are congruent"

Hope this helps!
6 0
3 years ago
Read 2 more answers
Write an equation of a line that is perpendicular to the line y = 3/2x + 3 and goes through the point (-3, -8). Hint: Use the po
JulijaS [17]
Point-slope form looks like this: y - k = m(x - h) where m is the slope, k is the y-value and h is the x-value. For (-3, -8), -3 would replace h and -8 would replace k.

Slope-intercept form looks like this: y = mx + b where m is the slope and b is the y-value.

To solve the problem we must plug in the given coordinate and slope to the point-slope formula then change the point-slope form into slope-intercept form. But first we need to know what the slope is.

If a line is perpendicular to another line, their slopes are negative reciprocals of each other. So with the line y = 3/2x + 3, the slope for another line that is perpendicular has to be -2/3 because we switched the numerator and denominator and made it from positive to negative.

Now that we know the slope and the given coordinate, we can start solving.

Plug the givens into the point-slope formula y - k = m(x - h).
y - (-8) = -2/3(x - (-3))
y + 8 = (-2/3*x) - (-2/3*-3)
y + 8 = -2/3x + 2 Now we can convert the equation to slope-intercept form.
y + 8 - 8 = -2/3x + 2 - 8 Remember that what we do on one side we must do one the other, so we subtract 8 on the left <em>and </em>right to get y by itself.
y = -2/3x - 6 This equation is now in slope-intercept form y = mx + b, so this is the final result.

I hope this explanation made sense. If there is anything that I made look confusing, feel free to tell me and I'll try my best to explain!
8 0
3 years ago
What is the equation of the line in the graph
olga2289 [7]

the equation of the line is y = 3.

the slope of the line is 0.

the y-intercept is 3, so plug it into the slop-intercept-form equation:

y = mx + b

y = 0x + 3

y = 3

hope this helps!

8 0
3 years ago
The vet says that Lena's puppy will grow to be at most 25 inches tall. Lena's puppy is currently 1 foot tall. How many more inch
mars1129 [50]

Answer:

13 inches

Step-by-step explanation:

1 foor = 12 inches

25 - 12 = 13

Therefore Lena's puppy will grow 13 more inches.

6 0
2 years ago
You have a land-line telephone that costs $25.95/month plus a utilities tax of 4.5%. How much will you pay for your telephone us
dalvyx [7]

Answer

C) 325.41

Step by step explanation

The land-line telephone costs =$25.95

Utilities tax percentage = 4.5% = 4.5/100 = 0.045

Utility tax for amount $25.95 = 25.95*0.045

Utility tax = $1.17

The amount of telephone bill with tax = $25.95 + $1.17

= $27.12

There are 12 months in a year.

Telephone bill for a year = $27.12 * 12

= $325.44

Therefore, the nearest amount $325.41

You need to pay $325.41 as telephone bill for a year.

Thank you.

5 0
4 years ago
Read 2 more answers
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