All categories

2 years ago

How many solutions does this system has Y=5(x + 2) Y=5(x - 2)

1 answer:

8 0

This solution has no solutions because when you do a substitution method you might end up getting rid of the variable and left with a constant.

You might be interested in

Solve for r please 80=10r.

OLEGan [10]

R = 8 since 8 times 10 = 80

4 0

2 years ago

Read 2 more answers

The lengths of the two sides of a triangle (not necessarily a right triangle) are 1.00 meters and 3.54 meters. The sine of the a

DerKrebs [107]

Answer:

sin B= 0.096288

B = 5.525°

Step-by-step explanation:

Consider ΔABC as shown in figure attached

From figure:

a = 1 m

b = 3.54 m

sin A = 0.0272

sin B = ?

Using the sine rule for non-right-angle triangle

$\\\frac{a}{sin\, A}=\frac{b}{sin\,B}\\\\sin\,B=\frac{b(sin\,A)}{a}\\\\sin\,B=\frac{(3.54)(0.0272)}{1}\\\\sin\,B=0.096288\\\\B= 5.525^o$

4 0

3 years ago

You earn $28 for washing 7 cars. How much do you earn for washing 6 cars?

iren [92.7K]

━━━━━━━━━━━━━━━ ♡ ━━━━━━━━━━━━━━━

Since you can earn 28 dollars by washing 7 cars, and you want to find the amount money you can make by washing 6 cars.

$\frac{28}{7} = \frac{x}{6}$

First, you should find the amount of money you can make by washing 1 car (unit rate).

$\frac{28}{7} = \frac{x}{1}$

To get from 7 to 1, you have to divide 7 by 7; 7 ÷ 7 = 1.

Do the same thing to the numerator; 28 ÷ 7 = 4.

Now you know how much you make by washing 1 car, you need to find how much you make by washing 6 cars.

$\frac{4}{1} = \frac{x}{6}$

To get from 1 to 6, you multiply by 6. 1 times 6 equals 6.

Now do the same thing to the numerator; 4 × 6 = 24.

You can earn 24 dollars by washing 6 cars.

━━━━━━━━━━━━━━━ ♡ ━━━━━━━━━━━━━━━

5 0

2 years ago

PLZZZ HELP ASAP I NEED THIS IOO POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

erastovalidia [21]

Answer:

Number line graph with closed circle on 12 and shading to the right.

Explanation:

if you see Ezra needs $37 and if she has less than $12 then she will not have $37. she needs exactly $12 or more. The closed circle tells us that 12 is a answer and the shading to the right means more than 12.

5 0

2 years ago

Logarithms:

bogdanovich [222]

Answer:

2^45 or ≈ 3.5*10^13

Step-by-step explanation:

Given equation

f(t) = 2^(kt)
f - number of cells, t - number of months, k- coefficient

We got 32 cells in the first month. It means:

t = 1, f(1) = 32

Using these numbers we can find the coefficient k:

32 = 2^(k*1)
2^5 = 2^k
k = 5

Then the equation becomes:

f(t) = 2^(5t)

Average time is 9 months, we can calculate the number of cells:

f(9) = 2^(5*9) = 2^45 ≈ 3.5*10^13

5 0

3 years ago