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3 years ago

Clare bought a photo for 17 cents and paid with a $5 bill.

Mathematics

1 answer:

KATRIN_1 [288]3 years ago

4 0

Answer:

hundredths place

Step-by-step explanation:

because after the decimal it starts in tenth place and you want enough room to make it -0.17

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Someone help me with this question please

Naily [24]

Answer: $t\geq 1$

Step-by-step explanation:

you would multiply by 3 on both sides to get the division to go away.

then subtract 8 from both sides.

then you have your answer

5 0

2 years ago

The following angles are supplementary find the missing angle measure

nekit [7.7K]

Answer:

x = 62°, y = 103°

Step-by-step explanation:

Supplementary Angles

Two angles are called supplementary when their measures add up to 180 degrees.

The image shows two pairs of supplementary angles. We have to find the value of the unknown variable.

The first drawing shows supplementary angles x and 118°. They must satisfy the equation:

x + 118° = 180°

Subtracting 118°:

x = 180° - 118°

x = 62°

From the second drawing, we set up the equation:

y + 77° = 180°

Subtracting 77°:

y = 180° - 77°

y = 103°

6 0

2 years ago

What is the answer to this question?

Tanya [424]

Answer:

a^(-1/2) = 1/sqrt(a) = 3

so.

sqrt(a) = 1/3

a = 1/9

6 0

2 years ago

If you rent a car for one day and drive it 100 miles, the cost is $40. If you drive it 150 miles, the cost is $48.50. Fit a line

dem82 [27]

Answer:

Step-by-step explanation:

4 0

3 years ago

Write an exponential model given the points ( 7, 12 ) and ( 8, 25 ). Round to the nearest hundredth.

inna [77]

Answer:

The exponential model is $y = 0.07\cdot e^{0.73\cdot x}$ .

Step-by-step explanation:

The exponential model can be modelled by the following mathematical expression:

$y = A\cdot e^{B\cdot x}$ (1)

Where:

$x$ - Independent variable.

$y$ - Dependent variable.

$A, B$ - Coefficients.

If we know that $(x_{1}, y_{1}) = (7,12)$ and $(x_{2}, y_{2}) = (8,25)$ , then we get the following system of equations:

$A\cdot e^{7\cdot B} = 12$ (2)

$A\cdot e^{8\cdot B} = 25$ (3)

If we divide (3) by (2), we calculate the value of $B$ :

$e^{B}=\frac{25}{12}$

$B = \ln \frac{25}{12}$

$B \approx 0.734$

And by (2), we determine the value of $A$ :

$A = 12\cdot e^{-7\cdot B}$

$A = 0.0704$

The exponential model is $y = 0.07\cdot e^{0.73\cdot x}$ .

4 0

2 years ago