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RoseWind [281]
3 years ago
10

Factor completely 10x2 + 2x − 8.

Mathematics
2 answers:
ki77a [65]3 years ago
3 0
The answer is 2(5x - 4)(x + 1)

10x² + 2x - 8 = 2*5x² + 2*x - 2*4 =
= 2(5x² + x - 4) =
= 2(5x² + 5x - 4x - 4) =
= 2(5x *x + 5x*1) - (4*x + 4*1) =
= 2(5x(x + 1) - 4(x + 1)) =
= 2(5x - 4)(x + 1)
alex41 [277]3 years ago
3 0

Answer:

2(6+x)

Step-by-step explanation:

1. Multiply the numbers

20+2x-8

2. Subtract the numbers

12+2x

3. Factor 2 from the expression

2(6+x)

You might be interested in
Brooklyn and her friends went into a grocery store and they want to buy some apples and peaches. Each apple costs $1.75 and each
Sphinxa [80]

Answer:

A. $11.75

B. $1.75x + $1.00y = c (cost)

Step-by-step explanation:

A. Because apples cost $1.75 each you could multiply the amount of apples you intent to buy by $1.75 which in this case the amount of apples wanted is  3. $1.75 x 5 = $8.75. You would do the same thing for the peaches except the amount per peach is different. $1.00 x 3 = $3. Then you would add the two amounts together to get the amount Brooklyn and her friend would have to pay. $8.75 + $3 = 11.75

B. Because you multiply the amount of items you intend to get by the cost per item the equation you would follow if the amount of items changed would be. $1.75x + $1.00y = c (cost)

Hope this helps!

Please tell me if I am incorrect I enjoy learning from my mistakes!

Good luck!!

8 0
3 years ago
Yasmine estimated the difference of 87.71 and 5.8 by rounding each number to the nearest whole. What was Yasmine's estimate, and
Alex73 [517]

Answer:

Yasmine estimated the difference to be 82. The actual difference is 81.91.

Step-by-step explanation:

The rounded whole number of 87.71 is 88 and the rounded whole number of 5.8 is 6.

So, the difference between the numbers 87.71 and 5.8 by rounding each number to the nearest whole numbers will be

(88 - 6) = 82.

The actual difference between the numbers 87.71 and 5.8 is (87.71 - 5.8) = 81.91.

Therefore, Yasmine estimated the difference to be 82. The actual difference is 81.91. (Answer)

3 0
3 years ago
The temperature has been going down at a constant rate. In 4 hours it went down 12 degrees. Which expression best shows the temp
Nookie1986 [14]

Answer:

i think its 45 % but where are the expressions

Step-by-step explanation:


4 0
3 years ago
Write each expression as a single natural logarithm. ln 3+ ln 4
Oduvanchick [21]

Expression as a single natural logarithm is 2.48490664979.

<h3>What is natural logarithm?</h3>

ln 3+ ln 4

ln (3×4)

ln(12) =2.48490664979

The inverse of an exponential function, the natural log is the logarithm to the base of the number e. Natural logarithms are unique varieties of logarithms that are employed in the treatment of time and growth-related issues.

The distinction between log and ln is that log is expressed in terms of base 10, while ln is expressed in terms of base e. As an illustration, log of base 2 is denoted by log2 and log of base e by loge = ln (natural log).

To learn more about natural logarithm from the given link:

brainly.com/question/20785664

#SPJ4

5 0
1 year ago
I already answered number 1 and 3 I just need 2 4 and 5 that’s it I’ll mark you brilliant AND GIVE EXTRA POINTS!!!
gavmur [86]

Answer:

the 2:The constant of proportionality is the ratio between two directly proportional quantities. Two quantities are directly proportional when they increase and decrease at the same rate. 3

Step-by-step explanation:

40 to 8

Each pizza costs $8 and the delivery fee is $3.

5 0
3 years ago
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