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mixer [17]
3 years ago
9

Simplify (2x − 5)(3x² + 7x− 8)

Mathematics
1 answer:
Amanda [17]3 years ago
3 0

Answer:

6x³-x²-51x+40

Step-by-step explanation:

(2x − 5)(3x² + 7x− 8)

vv

6x³ +14x² <u>-16x</u>  -15x² <u>-35x</u> <em>+40</em>

add like terms:

6x³ -x² <u>-51x</u> <em>+40</em>

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Free_Kalibri [48]

Answer: Since 5 is an odd number each person would then have to pay 1.60 each.

Step-by-step explanation:

7 0
3 years ago
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When the Olympic Games were held outside Mexico City in 1968, there was much discussion about the effect the high altitude (7340
Artyom0805 [142]

Answer: By moving from sea level to Mexico City  air pressure is reduced by 25%.

Step-by-step explanation:

Hi, to answer this we have to apply a decrease rate formula

P0 (1-r)^x

Where:  

p0= initial pressure

r = decrease rate. (0.4 = 0.4/100=0.004 decimal form)

x = feet (hundredths, since the air pressure decays every 100 feet we have to divide the input value by 100)

Replacing with the values given

P0 (1- 0.4/100)^(7340/100) =

P0 (0.996)^73.4 =

P0 ( 0.75)=

The air pressure at Mexico City compared to the sea level is 75% (0.75 x 100 =75%)

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100% -75% =25%

7 0
3 years ago
Carmela mixes 3/4 kilogram of walnuts, 1/2 kilogram of almonds, and 1/4 kilogram of pecans together. She divides the mixed nuts
Evgesh-ka [11]

Amount of walnuts=\frac{3}{4} kg

Amount of almonds=\frac{1}{2} kg

Amount of pecans=\frac{1}{4} kg

Total amount=\frac{3}{4}+\frac{1}{2}+\frac{1}{4}

LCM is 4 so sum is = \frac{3+2+1}{4}=\frac{6}{4} =\frac{3}{2}

As given, Carmela divides the mixed nuts into 3/10 kilogram bags so number of bags will be:

\frac{\frac{3}{2}}{\frac{3}{10}}

= \frac{3}{2}\times\frac{10}{3} = 5

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5 0
4 years ago
Yo I need this as soon as possible
joja [24]

Answer:

Step-by-step explanation:

So, if we know that 25 is the area of the square, that means that each side is 5.  That also means the diameter of the circle is 5, so the radius is 2.5.  Now, we can input the radius into the circumference formula for a circle, which is 2πradius.  So, 2π2.5 which equals 5π, or about 15.71

3 0
4 years ago
Write the x-intercept of the graph of -6x + y = 8.
Trava [24]

Answer:

x-intercept:  x = -4/3

Step-by-step explanation:

x-intercept when y = 0

-6x + 0 = 8

so

-6x = 8

x = 8/-6

x = -4/3

6 0
4 years ago
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