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3 years ago

Please help me guys with this problem.

Mathematics

2 answers:

neonofarm [45]3 years ago

8 0

Answer: 152

Explanation:

Use order of operations.

Evaluate the exponents first:

4^2=16; 6^2=36

Therefore, the equation equals:

5*16+2*36

Now multiply:

5*16=80

2*36=72

So: 80+72

Add

=152

Anna71 [15]3 years ago

7 0

I think the answer is 152 but I’m not 100% sure

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4800 persons run a marathon, 1200 reach the finish line. What is the percent of people reach the finish line at the marathon?

Ket [755]

Answer: 25%

Step-by-step explanation: So first make the number of people who ran the marathon and the number of people who finished the marathon into a ratio

1200:4800

then make that into a fraction, 1200/4800

then make the percent of people who reached the marathon into a fraction, using 100 as the denominator and a variable as the numerator.

for example. p/100 (p, represents the percent)

then cross multiply.

1200x100=1200000

Last divide 1200000 by 4800 to get 25%.

7 0

2 years ago

2/5 10+36-6 ................... HELP PLEASE

JulijaS [17]

Answer:

if it is just the 10+36-6 then that is 40 but then if it is 2/5 10+36-6 then that would be 16

Step-by-step explanation:

add 10 and 36 which is 46 then subtract 6 which is 40 then get the 2/5 which would be 16 hope this helps you

8 0

3 years ago

Read 2 more answers

Help me I am desperate tell me the steps bc I don't understand how to do it!!!!

BartSMP [9]

We will use the principle of the similar triangles.

Triangle ABC was dilated and rotated to form triangle DEC
So, the triangle ABC is similar to triangle DEC

∴ $\frac{AB}{DE}= \frac{BC}{EC} = \frac{AC}{DC} = constant = m$

BC = 8 and EC = 5 ⇒⇒⇒ So, $m=\frac{8}{5}$

∴ $AC = m * DC = \frac{8}{5}*6 = \framebox{9.6}$

5 0

3 years ago

PLEASE HELP ME WITH THIS KHAN ASAP I did 5 hours of Khan :(

Nuetrik [128]

Answer:

The functions have the same y-intercept.

OPTION C is correct.

Step-by-step explanation:

DEFINITIONS AND FORMULAS

The equation of a linear graph is given to be:

$y=mx+b$

Where m is the slope of the graph and b is the y-intercept.

To calculate the slope given a table, we can use the formula:

$m=\frac{y^{2}-y^{1} }{{}x^2 -x^1}$

SOLUTION

Function 1: The equation of the graph is given to be

$p=-\frac{3}{2}r-5$

Therefore, the y-intercept of the graph is given to be:

$b=-5$

Function 2: Recall that the y-intercept of a graph is the y-value when x = 0.

On checking the graph, we can see that when r = 0, p = -5.

Therefore, the y-intercept is:

$b=-5$

ANSWER

The functions have the same y-intercept.

OPTION C is correct.

8 0

3 years ago

Read 2 more answers

Hey can you please help me posted picture of question

iren2701 [21]

The correct answer is option A

( 2 - 8i ) + ( 5 - i )

Real part is added in real part and the complex part is added in complex part

= 2 +5 - 8i - i

= 7 - 9i

So, the answer is 7 - 9i

7 0

3 years ago