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3 years ago

Find the area of this question

Mathematics

1 answer:

oee [108]3 years ago

7 0

The answer to this question whould be that the area is 20

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Determine the percent of change. Round to the

Goshia [24]

Answer:

DECREASE

Step-by-step explanation:

Not sure

But Hope It Help

5 0

3 years ago

I have 47 nickels and dimes worth $4.20. How many of each type of coin do I have?

soldi70 [24.7K]

Answer:

37 dimes and 10 nickels

Step-by-step explanation:

let d = # dimes

let n = # nickels

we can set up a system of equations:

n + d = 47

.05n + .10d = 4.2

if we solve the first equation for 'n' we get:

n = 47-d

now we can substitute this in for 'n' in the second equation:

.05(47-d) + .10d = 4.2

2.35 - .05d + .10d = 4.2

2.35 + .05d = 4.2

subtract 2.35 from each side to get:

.05d = 1.85

d = 1.85÷.05

d = 37

if d+n = 47 and d=37 then n = 10

Check:

.05(10) + .1(37) should equal 4.2

.50 + 3.7 = 4.2 [It Checks Out]

6 0

2 years ago

Statistics show that a certain soccer player has a 63% chance of missing the goal each time he shoots. If this player shoots twi

Kipish [7]

Answer:

<em>The probability of scoring two goals in both times is</em><em> 0.137 or 13.7%</em>

Step-by-step explanation:

Statistics show that a certain soccer player has a 63% chance of missing the goal each time he shoots.

So $P(A)=0.63$

Hence, the probability of getting success in his shoots will be,

$P(A^c)=1-P(A)=1-0.63=0.37$

The probability of scoring two goals in both times is,

$=P(A^c)\cdot P(A^c)$

$=0.37\times 0.37$

$=0.137$

$=13.7\%$

7 0

3 years ago

Read 2 more answers

I need help on this math problem.

OLEGan [10]

B: (0, a)

C should have the same y value as B

D: (a,0)

C should have the same x value as D

So point C is (a,a)

Since point A is on the origin, its point is (0,0)

You use the slope formula and plug in point A and C:

$m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

$m=\frac{a-0}{a-0}$

$m=\frac{a}{a}$

m = 1

So the value that belongs in the green box is 1

6 0

3 years ago

write the linear equation point slope form for the line that is perpendicular to y = -2x+1 and has (4,2) as a solutien.

ladessa [460]

Subtract 4 from both sides of the equation.

y=-4-2x+2

add -4 and +2.

the answer is

y=-2x-2

7 0

3 years ago