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3 years ago

Help please paper due tomorrow

Mathematics

2 answers:

Stells [14]3 years ago

7 0

Answer:

Step-by-step explanation:

Nana76 [90]3 years ago

3 0

It's F because when you divide the amount earned by time worked, you get 8.25. and if you times that by 40 then you get 330(F)

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Simplify the expression if possible 4^3 × 4^5 and write you answer as a power ( using exponents )

alexgriva [62]

Answer:

4^8

Step-by-step explanation:

If you are multiplying two bases that are the same with different exponents, the exponents get added and the base stays the same:

$x^a*x^b=x^{a+b}\\\\4^3*4^5=4^{3+5}\\\\4^3*4^5=4^8$

Therefore, 4^3 * 4^5 = 4^8

3 0

2 years ago

a small airplane flies 625 miles with an average speed of 250 mph.. 1.25 hours after the plane leaves a boeing 747 leaves from t

kipiarov [429]

Time for first plane = 625 / 250
= 2.5 hours
after 1.25 hours
boeing 747 takes 1.25 hours (2.5 - 1.25) to arrive at the same location at the same time
so, speed = distance / time
= 625 / 1.25
= 500
the average speed of the boeing 747 is 500 mph

8 0

3 years ago

Graph y=-(4)<br> X PLS HELP

mario62 [17]

Answer:

this is a horizontal line which crosses the y-axis at -4

Step-by-step explanation:

8 0

2 years ago

What is the length of x? What is the length of EF? Only enter numbers in the answer boxes below:

ioda

Focus on triangles DFC and DFE:

They are both right triangles because DF is perpendicular to EC

DC=DE

DF is a common side

So, the two triangles are congruent. It follows that CF=FE, and in particular

$8x=3x+15 \iff 5x=15 \iff x=3$

And since x=3, the length of EF is

$3x+15=3\cdot 3+15=24$

8 0

3 years ago

Solve square root <br> X^2+12x+43=0

AlekseyPX

$x^2+12x+43=0
$

$x= \dfrac{-b+ \sqrt{b^2-4ac} }{2a}, \dfrac{-b- \sqrt{b^2-4ac} }{2a}$

$x= \dfrac{-12+ \sqrt{12^2-4*43} }{2}$ , $\dfrac{-12- \sqrt{12^2-4*43} }{2}$

$x= \dfrac{-12+2 \sqrt{7i} }{2}, \dfrac{-12-2 \sqrt{7i} }{2}$

$x=-6+ \sqrt{7i},-6- \sqrt{7i}$

5 0

3 years ago

Read 2 more answers

Help please paper due tomorrow ​

Help please paper due tomorrow