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nirvana33 [79]
3 years ago
8

Find and explain wallys mistake!!

Mathematics
1 answer:
Marysya12 [62]3 years ago
5 0

Answer:

What Wally did wrong is that it is supposed to be (4a-5)(a-4)

In order to get -21 a. He was supposed to use negative 5 and 4 to get to negative 21

If he used (4a+5)(a+5)

The answer will be positive 21 and that's not what the problem is asking

Step-by-step explanation:

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A line passes through point (5,4) and has a slope of 4/5. Find the equation of the line in slope-intercept form.
iren [92.7K]

Answer:

Y = 4/5x + 0

Step-by-step explanation:

y - 4 = 4/5(x-5)

y-4=4/5x-4

y=4/5x-4+4

7 0
3 years ago
If a triangle has sides of length 8 cm and 14 cm, what are the possible lengths of the third side?​
Pie

Answer:

√260 and √132

Step-by-step explanation:

use pythagoreans theorem and you can replace a and b or a and c

8^2+14^2=x^2

64+196=x^2

260=x^2

x=√260

8^2+x^2=14^2

64+x^2=196

x^2=132

x=√132

7 0
3 years ago
Read 2 more answers
Can someone help me with this ?
navik [9.2K]

Answer:

SSS --> SAS --> AAS --> SAS --> HL --> SSS --> ASA --> AAS --> HL --> SAS --> HL

Step-by-step explanation:

To do this problem, look at the angles that are marked congruent as well as the sides. Then look at the order that the angles and sides are placed. If it is SSS, then that means three sides are marked congruent. SAS means the order of the side and angles would be side then angles then another side. AAS means angle then angle then side. HL is when you have a right triangle and one of the legs are congruent as well as the hypotenuse. ASA means an angle then side then another angle.

3 0
3 years ago
3x² - 6x - 24 = 0<br> 0 4,-2<br> O 7.58,-1.58<br> O 2.65, 3<br> 0-30, 36
zzz [600]

Answer:

The answer is (4,-2)

Step-by-step explanation:

i had the same question on my finals and i got it correct!! u welcomee

5 0
4 years ago
What is the missing term?
klio [65]

Answer:

-6

Step-by-step explanation:

3 x -2 = -6

You know this because you can see the pattern, whatever the column box is its always multiplied by the number its going on both vertical and horizontal.

6 0
3 years ago
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