All categories

3 years ago

Please help me it would be much appreciated! I promise to mark brainlest!

Mathematics

2 answers:

RideAnS [48]3 years ago

6 0

Answer: If you look up the question on Brainly, somebody asked the same question and there is a full explanation.

Step-by-step explanation:

anygoal [31]3 years ago

5 0

(x+10(2x+5)) to find the area of the full shape
2x^2+5x+20x+50
2x^2+25x+50 (simplified), then subtract the area of the square inside which is
(x+1)(x+1) = x^2+x+x+1 = x^2+2x+1
(2x^2+25x+50)-(x^2+2x+1)
x^2+23x+49 is the final answer

You might be interested in

PLZ HELP IM RUNNING OUT OF TIME BEST ANSWER GETS BRAINLIEST!!!!!!!

shtirl [24]

Answer:

y=8x

Step-by-step explanation:

Hope this helps you

8 0

2 years ago

Read 2 more answers

Which equation best represents the data shown in the scatter plot below?

ELEN [110]

Answer:

Step-by-step explanation:

6 0

2 years ago

the sum of three numbers is 6. the third number is the sum of the first and second numbers. the first number is one more than th

Monica [59]

Your numbers would be 1, 2, and 3.

1+2=3

1+2+3=6

6 0

2 years ago

Read 2 more answers

est scores for a statistics class had a mean of 79 with a standard deviation of 4.5. Test scores for a calculus class had a mean

Arte-miy333 [17]

Answer:

The z-score for the statistics test grade is of 1.11.

The z-score for the calculus test grade is 7.3.

Due to the higher z-score, the student performed better on the calculus test relative to the other students in each class

Step-by-step explanation:

Z-score:

In a set with mean $\mu$ and standard deviation $\sigma$ , the z-score 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 p-value, we get the probability that the value of the measure is greater than X.

In this question:

The grade with the higher z-score is better relative to the other students in each class.

Statistics:

Mean of 79 and standard deviation of 4.5, so $\mu = 79, \sigma = 4.5$

Student got 84, so $X = 84$

The z-score is:

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

$Z = \frac{84 - 79}{4.5}$

$Z = 1.11$

The z-score for the statistics test grade is of 1.11.

Calculus:

Mean of 69, standard deviation of 3.7, so $\mu = 69, \sigma = 3.7$

Student got 96, so $X = 96$

The z-score is:

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

$Z = \frac{96 - 69}{3.7}$

$Z = 7.3$

The z-score for the calculus test grade is 7.3.

On which test did the student perform better relative to the other students in each class?

Due to the higher z-score, the student performed better on the calculus test relative to the other students in each class

7 0

3 years ago

1. Storing milk at temperatures colder than 35°F can affect its quality of taste. However, storing milk at temperatures warmer t

Mazyrski [523]

Answer:

Part (A): The required inequality is T < 35 or t >40.

Part (B): The correct option is C) Only x=7.

Part (C) |x+1|+5=2 has no solution; |4x+12|=0 has one solution; |3x|=9 has two solution.

Step-by-step explanation:

Consider the provided information.

Part (A)

Storing milk at temperatures colder than 35°F can affect its quality of taste. However, storing milk at temperatures warmer than 40°F is an unsafe food practice.

The union is written as A∪B or “A or B”.

The intersection of two sets is written as A∩B or “A and B”

We need to determine the inequalities represent the union of these improper storage.

That means we will use A∪B or “A or B”.

The improper storage temperatures is when temperature is less than 35°F or greater than 40°F.

Hence, the required inequality is T < 35 or t >40.

Part (B) 15| x-7|+4=10|x-7|+4

Solve the inequality as shown below:

Subtract 4 from both sides.

$15| x-7|+4-4=10|x-7|+4-4$