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Lady_Fox [76]
3 years ago
5

What is: 6x^2-4x-10?

Mathematics
2 answers:
Bad White [126]3 years ago
4 0

Answer:

x = 1⅔ or -1

Step-by-step explanation:

6x² -4x - 10

a=6, b=-4, c=-10, ac= -60

factors -10 & 6

6x² + 6x - 10x -10 =0

(6x² + 6x) - (10x - 10) =0

6x(x +1) - 10(x+1) =0

(6x-10)(x+1)=0

6x-10=0 or. x+1=0

6x= 10 or x= -1

x= 10/6 or. x= -1

x=1⅔ or x= -1

abruzzese [7]3 years ago
3 0

<em>answer \\ (3x - 5)(2x + 2) \\ solution \\  {6x}^{2}  - 4x - 10 \\  =  {6x}^{2}  - (10 - 6)x - 10 \\  =  {6x}^{2}  - 10x + 6x - 10 \\  = 2x(3x - 5) + 2(3x - 5) \\  = (3x - 5)(2x + 2) \\ hope \: it \: helps</em>

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Anthony's Nuffin Shop recently sold 4 blackberry muffins and 6 other muffins. Considering
Mazyrski [523]

Answer:

8

Step-by-step explanation:

In total, Antony sold 10 muffins. We can do a ratio like this:

\frac{4}{10} = \frac{x}{20}

Because there are 4 blackberry muffins. We solve.

Because 10 is directly half of 20, we can just multiply 4 by 2 because if you multiply 10 by 2, you'd get 20. 4 times 2 is 8. That's the answer.

7 0
3 years ago
A car starts from an initial velocity of 10m/s and accelerates at 2.5m/s².how long will it take the car to reach a speed of 40m/
PIT_PIT [208]
A=(v-u)/t
We know a=2.5, v=40, u=10, so:
2.5=(40-10)/t
2.5t=40-10
2.5t=30
Divide both sides by 2.5
t=12 It takes 12 seconds for the car to reach 40m/s

To find out how far it went, you do:
d=v+1/2 at^2
d=10+1/2(2.5)(12)^2
d=10+1/2(2.5)(144)
d=10+(1.25)(72)
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Hope this helps :)
7 0
3 years ago
Three streets intersect to form a right triangle as shown below. The parts of streets that make up the legs of this triangle are
Burka [1]

Answer:

70 yd.

Step-by-step explanation:

The three streets at the intersection form a right triangle.

For a right triangle, the length of the longest side (called hypothenuse) is given by Pythagorean's theorem:

h=\sqrt{x^2+y^2}

where

x is the length of the 1st side

y is the length of the 2nd side

h is the length of the hypothenuse

Here we want to find the hypothenuse.

We have:

x = 42 yd (length of the 1st side)

y = 56 yd (length of the 2nd side)

Substituting, we find h:

h=\sqrt{42^2+56^2}=70 yd

7 0
3 years ago
Easton bought 8 chicken wings for $8.80. How much would it cost for 17 wings?
olga2289 [7]
18.70
Because they are 1.10 each
4 0
3 years ago
6 = -5 -x solve for x
makkiz [27]

Answer:

<h2>x = -11</h2>

Step-by-step explanation:

In algebra, the goal is always to isolate the variable, so that its value can be determined.

<h3>Step 1: Add x</h3>

6 + x = -5

<h3>Step 2: Subtract 6</h3>

x = -11

<h3>Step 3: Check</h3>

6 = -5 - -11

6 = -5 + 11

6 = 6 ✔

<h3>Step 4: Answer</h3>

x = -11

I'm always happy to help :)

7 0
3 years ago
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