2 years ago

Can somebody help me answer this and explain it to me?

Mathematics

1 answer:

AnnZ [28]2 years ago

6 0

Can i see the options? i’m pretty sure the first one is EF and the second one is A units

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Solve the equation 0.35(x+4)=0.25(x-6)

creativ13 [48]

x = -29

because
0.35x +1.4=0.25x-1.5
-0.25x -0.25x
_____________________
0.1x + 1.4 = -1.5
-1.4 -1.4
_________________________
0.1x =-2.9
____ _____
0.1 0.1
x = -29

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3 years ago

Whenever a,x,y are positive integers, which of the following expressions is equivalent to x^ay^a

lilavasa [31]

Answer:

${(xy)}^{a}$

Step-by-step explanation:

when the exponent is equal, we can put the x and y together in a bracket and a as the Exponent of xy.

Hope I get your question~

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3 years ago

Ebert used to make $22 an hour, but got a 10% raise. How much more will he make in a 40 hour work week with the raise?

Helen [10]

Answer: $88.00 per week

Step-by-step explanation: 10% of 22 is 2.2. 22 + 2.2 = 24.20 per hour

Multiply 24.20x40hours = 968.00

Multiply 22.00x40 hours =880.00

Subtract 968-880=88.00 his new weekly pay minus his old weekly pay

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3 years ago

Read 2 more answers

Mike's Music Soul 287 CDs on the first day of a two day sale the store so 96 more CD's on the second day then the first day how

almond37 [142]

The answer is 670.
this is because 96 plus 287 is 383.
so he sold 287 on the 1st day, and 383 on the second day.
383 plus 287 equals 670.

5 0

3 years ago

Someone please help me with problem #7 !!!

ser-zykov [4K]

Answer: b and d

Step-by-step explanation:

Since the roots are x=2 and x=6, we can write the equation as

$f(x)=a(x-2)(x-6)$

Substituting in the coordinates of the vertex,

$-4=a(4-2)(4-6)\\\\-4=-4a\\\\a=1$

So, the equation is $f(x)=(x-2)(x-6)$

On expanding, we get $f(x)=x^2 - 8x+12$

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2 years ago