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shepuryov [24]
3 years ago
6

Help me this is very hard

Mathematics
1 answer:
guapka [62]3 years ago
4 0

Answer:

B. 60

Step-by-step explanation:

1. take the square root of 64

2. multiply 8*10 and 5*4

3. subtract

Square root of 64 is 8 so,

10*8 - 5*4

80 - 20 =

60

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Pls help?!?!?! 10 points
hram777 [196]

Answer:

I solved it for u!

Hope ot helps!!!

5 0
3 years ago
Maritza remembers her PIN because it is between 1,000 and 1,500 and it is the product of two consecutive prime numbers. What is
valentina_108 [34]

Answer:

<em>The PIN is 1147</em>

Step-by-step explanation:

<u>Prime numbers</u>

These are integer numbers that only divide exactly by themselves and by 1. To find the first possible prime number between 1,000 and 1,500, calculate the square root of 1,000.

\sqrt{1000}\approx 31.6

Thus, the first prime to consider is 31. Write the consecutive primes from 31:

31 , 37 , 41 , 43

We can see the only two consecutive primes whose product lies in the given interval are 31 and 37. Thus, the PIN is 31*37=1147

4 0
3 years ago
Solve the equation. 3/4(x-12)=3 –12 9 16 20
tekilochka [14]

Answer:

<h2>          x = 16</h2>

Step-by-step explanation:

³/₄(x - 12) = 3        {multiply both sides by ⁴/₃}

x - 12 = 4             {add 12 to both sides}

 x = 16

8 0
3 years ago
Which quadratic function in vertex form has a vertex at (−5 , −4) and passes through the point (−2 , −1)?
ioda

Answer:

y = 1/3(x + 5)^2 - 4

Step-by-step explanation:

The general vertex form is;

y = a(x-h)^2 + k

From the question, (h,k) are the coordinates of the vertex which is (-5,-4)

So we have

y = a(x + 5)^2 -4

So we need to get the leading coefficient

Simply substitute the point it passes through

x = -2 and y = -1

-1 = a(-2 + 5)^2 - 4

-1 = a(3)^2 -4

-1 = 9a -4

9a = 4-1

9a = 3

a = 3/9

a = 1/3

So the equation is;

y = 1/3(x + 5)^2 - 4

5 0
3 years ago
A rectangle has width w inches and height h inches, where the width is twice the height. Both w and h are functions of time t, m
vichka [17]

Answer:

D.

Step-by-step explanation:

Area=w*h

w*h=(2h)*(h)=2h^2

dA/dt=2(2h)=4h

dA/dt=4h dh/dt in^2/sec

6 0
4 years ago
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