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3 years ago

Please help and show work I’m begging

Mathematics

1 answer:

mixas84 [53]3 years ago

5 0

13. Pick a point and see which formula works.
Ay = -4, A'y = 7. Only the formula of selection D makes that translation.

14. Use the compound interest formula A = P*(1 +r/n)^(nt).
..1500*1.015^80 = 4935.99, matching selection C

15. The lid has a perimeter of 90", so the area of the sides is
.. 90" * 24" = 2160 in^2
The area of the lid is
.. 30" * 15" = 450 in^2

The gray area is (2160 -450) in^2 = 1710 in^2 larger, corresponding to selection C.

16. The only formula that maps (7, -1) to (21, -3) is that of selection D.

_____
The middle two problems are the only ones that require you to have prior knowledge. The others could be answered simply by seeing if the answers work.

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Pleaseeee<br>how can I do it??

Otrada [13]

$7^x+49^{ \frac{x}{2} }=2\cdot \sqrt[5]{343} \\ \\ 7^x+(7^2)^{ \frac{x}{2} }=2\cdot \sqrt[5]{7^3} \\ \\7^x+ 7^x=2\cdot 7^{ \frac{3}{5} } \\\\ 2 \cdot 7^x=2\cdot 7^{ \frac{3}{5} } \ \ \ | \div2 \\ \\ 7^x=7^{ \frac{3}{5} } \\ \\ x= \frac{3}{5}$

3 0

2 years ago

Archaeologists have discovered the scapula, ulna, and metacarpals of an ancient

Nesterboy [21]

Answer:

The arm I think because these are all parts of an arm

7 0

3 years ago

.Write a division equation so that it has a solution of -2

Irina18 [472]

Let’s take a random number such as 10, for example as the divisor of the equation.
Let’s take the dividend, or numerator of the fraction be x.
The solution of the fraction would be -2.

x/10 = -2
Or, x= -2 x 10
Or, x= -20

Therefore, -20/10 = -2
Ans: The division equation would be -20/10 = -2.

4 0

3 years ago

Nancy's mother has a large collection of shoes. The table shows how many pairs of shoes she

SSSSS [86.1K]

Answer:

P(pumps) = 2/5

Step-by-step explanation:

(Pumps)/(Everything)

(10)/(9+6+10)

10/25

2/5

7 0

2 years ago

zheka24 [161]

Answer:

The circumference of the smaller circle is:

C = 2*pi*x/3

Step-by-step explanation:

We know that for a circle of radius R the circumference is given by:

C = 2*pi*R

where pi = 3.14...

Here we have two circles, A and B, where B is the larger circle and A is the smaller circle.

We know that:

The circumference of B is 3 times the circumference of A.

The radius of circle B is: OB = x

The radius of circle A is: OA

We want to find an expression of OA.

The circumference of circle B will be:

C(B) = 2*pi*OB = 2*pi*x

The circumference of circle A will be:

C(A) = 2*pi*OA

And we know that the circumference of circle B is 3 times the circumference of circle A, then:

C(B) = 3*C(A)

replacing the equations for the circumferences, we get:

2*pi*x = 3*(2*pi*OA)

dividing both sides by 2*pi, we get:

x = 3*OA

Now we want to solve this for OA, then we need to isolate it,

x/3 = OA

We can conclude that the radius of the smaller circle is equal to x/3.

Then the circumference of circle A is:

C(A) = 2*pi*x/3

5 0

2 years ago