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MA_775_DIABLO [31]
3 years ago
14

Select the correct difference. 5d 2 + 4d - 3 less 3d 2 - 2d + 4 2d2 + 2d + 1 2d2 + 6d - 7 2d2 + 6d + 7 -2d2 - 6d + 1

Mathematics
2 answers:
MA_775_DIABLO [31]3 years ago
8 0
If you would like to solve (5d^2 + 4d - 3) - (3d^2 - 2d + 4), you can calculate this using the following steps:

(5d^2 + 4d - 3) - (3d^2 - 2d + 4) = 5d^2 + 4d - 3 - 3d^2 + 2d - 4 = 2d^2 + 6d - 7

The correct result would be <span>2d^2 + 6d - 7.</span>
Ulleksa [173]3 years ago
3 0

Answer:

2d^2 + 6d - 7.

Step-by-step explanation:

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Draw a line representing the "run" and a line representing the "rise" of the line. State the slope of the line in simplest form.
Shtirlitz [24]

Answer:

\displaystyle 1\frac{1}{3}

Step-by-step explanation:

[3, 1] and [0, −3]

\displaystyle \frac{-y_1 + y_2}{-x_1 + x_2} = m \\ \\ \frac{3 + 1}{0 + 3} = \frac{4}{3} = 1\frac{1}{3}

I am joyous to assist you anytime.

4 0
3 years ago
Read 2 more answers
The ratio of Dawn to Mandy's savings is 6 : 7. The ratio of Mandy to Belle's savings is 2 : 3. Find the ratio of Dawn to Belle's
Mila [183]

The savings are illustrations of ratio, and the ratio of Dawn to Belle's savings in the simplest ratio is 4 : 7

<h3>How to determine the ratio?</h3>

The given ratios are:

Dawn : Mandy = 6 : 7

Mandy : Belle = 2 : 3

Multiply the second ratio by 3.5.

So, we have:

Mandy : Belle = 2 * 3.5 : 3 * 3.5

Evaluate

Mandy : Belle = 7 : 10.5

So, we have:

Dawn : Mandy = 6 : 7

Mandy : Belle = 7 : 10.5

Mandy's ratios in both equation are the same.

So, we have:

Dawn : Mandy : Belle = 6 : 7 : 10.5

Remove Mandy's ratio

Dawn : Belle = 6 : 10.5

Simplify

Dawn : Belle = 4 : 7

Hence, the ratio of Dawn to Belle's savings is 4 : 7

Read more about ratios at:

brainly.com/question/2328454

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5 0
2 years ago
The average maximum monthly temperature in Campinas, Brazil is 29.9 degrees Celsius. The standard deviation in maximum monthly t
velikii [3]

Answer:

3.84% of months would have a maximum temperature of 34 degrees or higher

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 29.9, \sigma = 2.31

What percentage of months would have a maximum temperature of 34 degrees or higher?

This is 1 subtracted by the pvalue of Z when X = 34. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{34 - 29.9}{2.31}

Z = 1.77

Z = 1.77 has a pvalue of 0.9616

1 - 0.9616 = 0.0384

3.84% of months would have a maximum temperature of 34 degrees or higher

8 0
3 years ago
Use signed numbers to solve. A helicopter descended 1200 feet, rose 800 feet, and then descended 450 feet. What was the net gain
DENIUS [597]
B. Lost 850 ft
800-450= 350
1200-350=850

I hope I helped :D

6 0
3 years ago
help pleaseeee it’s timed!!!
Kisachek [45]

Answer:

C

Step-by-step explanation:

The solution triangle is attached below :

Tonobtinnthe Angle formed, θ; we apply trigonometry ;

Using ;

Cos θ = Adjacent / hypotenus

Cos θ = 4 / 7

θ = Cos^-1(4/7)

θ = 55.15°

θ = 55°

3 0
2 years ago
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