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Simora [160]
3 years ago
6

Hi pls help.you do not have to do all 3. just either one will be ok pls explain as well:) thank you

Mathematics
1 answer:
noname [10]3 years ago
3 0

Answer:

{7a^{5}b^{5} c\\

Step-by-step explanation:

 \frac{28a^{8}b^{6} c^{3}  }{4a^{3}bc^{2}  }

→ First look at the first term of each expression and see if they can be simplified, and they can

\frac{7a^{8}b^{6} c^{3}  }{a^{3}bc^{2}  }

→ Now look at the a terms, since a larger one is at the top, you subtract

\frac{7a^{5}b^{6} c^{3}  }{bc^{2}  }

→ Now simplify the b and c terms

{7a^{5}b^{5} c

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Alice tried to solve the equation. What was her mistake?
uysha [10]
She didn’t multiply -1/4 by 12 in order to get -1/4x + 3 = -1

which would change her answer, because then you have to subtract 3 from -1 and get -4. Then divide -1/4 & get 16. It changed to positive because of the division & multiplication rule with two negative numbers.


Hope this helps.
8 0
3 years ago
Read 2 more answers
Which shows the correct substitution of the values a, b, and c from the equation 1 = –2x + 3x2 + 1 into the quadratic formula? Q
Tanzania [10]

First of all, you have to manipulate the equation into the standard

ax^2+bx+c=0

form. You can simplify the 1's on both sides and you have

3x^2-2x=0

This means that your coefficients are

a=3,\quad b=-2,\quad c=0

And since the solving formula is

x_{1,2}=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}

Plugging your values yields

x_{1,2}=\dfrac{-(-2)\pm\sqrt{(-2)^2-4\cdot 3\cdot 0}}{2\cdot 3}

5 0
3 years ago
Read 2 more answers
Find the value of each variable. For the circle, the dot represents the center.
Musya8 [376]

Answer:

Part 1) The measure of angle d is 65°

Part 2) The measure of angle c is 89°

Part 3) The measure of arc a is 131°

Part 4) The measure of arc b is 47°

Step-by-step explanation:

we know that

In an inscribed quadrilateral, opposite angles are supplementary

step 1

Find the measure of angle d

∠d+115°=180°

∠d=180°-115°=65°

step 2

Find the measure of angle c

∠c+91°=180°

∠c=180°-91°=89°

step 3

Find the measure of arc a

we know that

The inscribed angle measures half that of the arc comprising

115°=(1/2)[99°+arc a]

230°=[99°+arc a]

arc a=230°-99°=131°

step 4

Find the measure of arc b

we know that

The inscribed angle measures half that of the arc comprising

∠c=(1/2)[arc a+arc b]

substitute the values

89°=(1/2)[131°+arc b]

178°=[131°+arc b]

arc b=178°-131°=47°

8 0
4 years ago
A tree of unknown height casts a shadow that is 18 feet long. If a person that is 5 ft 7 in casts a shadow that is 4 ft long, th
brilliants [131]

Answer:

25.

Step-by-step explanation:

5 ft 7 in = 5.583 ft.

We have 2 similar triangles here.

If h is the height of the tree, then:

h / 5.583 = 18/4

h = 18*5.583/4

h = 25.12 ft

5 0
3 years ago
HELP!!!
Bogdan [553]
The answer is One solution because the two lines are crossing each other and has one point in common
4 0
3 years ago
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