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anzhelika [568]
4 years ago
14

Please help with answers

Mathematics
1 answer:
Artyom0805 [142]4 years ago
3 0
1).  The inequality says "height is 54 or more".
Any height that is less than 54 does NOT qualify.

2).  The sign says  "Maximum total weight 800 pounds".
Any weight that's 800 pounds or less is OK.

3).  Paula has scored 21, 25, and 15 points.
. . . . . they're NOT all greater than 21
. . . . . they ARE all 25 or less
. . . . . they ARE all less than 30
. . . . . they ARE all 10 or more .

4).  First, write down the number of cans that
each student collected, but arrange them in order.
Then check each choice.
A).  misses the highest 3 students completely
B).  includes everybody
C).  misses the lowest 3 students completely
D).  OK, but the first and last intervals aren't needed,
       because nobody's cans are in those intervals
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Look at this graph:
skad [1K]
<h2>Answer:</h2>

The Slope is \frac{1}{4}\\

<h2>Explanation:</h2>

Notice that both the points, (-7,-6) and (-3,-5), are on the line. So we can use those points to calculate the slope. Recall that that slope of the line m can be calculated by \frac{y_2 -y_1}{x_2 -x_1}\\ if we have the points, (x_1,y_1) and (x_2,y_2).

<h3>Calculating for the slope of the line:</h3>

Given

(-7,-6)

(-3,-5)

m = \frac{-5 -(-6)}{-3 -(-7)} \\ m = \frac{-5 +6}{-3 +7} \\ m = \frac{1}{4}

3 0
3 years ago
Read 2 more answers
How to find (a) and (b)?​
rodikova [14]

Answer:

A) Gradient = -3

B) 3y - x = 7

Step-by-step explanation:

The curve has the equation;

y = x³ - 6x² + 9x + 1

We are given the pints it passes through as;

A(2,3) and P(3, 1)

A) to find the gradient, we will find the derivative of the given equation.

Thus;

Gradient = y' = 3x² - 12x + 9

At point A, x = 2. Thus;

Gradient = 3(2²) - 12(2) + 9

Gradient = 12 - 24 + 9

Gradient = -3

B) since the gradient of the tangent = -3, it means the gradient of the normal will be; -1/-3 = 1/3

Thus, equation of the normal to the curve at point A will be;

(y - 3) = ⅓(x - 2)

Multiply both sides by 3 to get;

3y - 9 = x - 2

3y - x = 9 - 2

3y - x = 7

3 0
3 years ago
un grupo de 247 personas viajan en camionetas del zoológico.el mayor numero de personas que pueden viaja es 15 cuel es el menor
Cloud [144]

Answer: 17

Step-by-step explanation:

:)

4 0
3 years ago
Find the value of x. Round the length to the nearest 10th the diagram is not shown to scale
Ilia_Sergeevich [38]
In the given diagram:
measure angle DAB + measure angle BAC = 90 degrees
we are given that measure angle DAB = 10 degrees
Therefore:
measure angle BAC = 90 - 10 = 80 degrees

Now, triangle ABC is a right-angled triangle which means that we can use the trigonometric functions.
The function that we will use is:
cos theta = (adjacent) / (hypotenuse) where
theta = 80 degrees
adjacent = 500
hypotenuse is "x" that we want to calculate.

Substitute to get x as follows:
cos 80 = 500 / x
x = 500 / cos 80 = 500 / 0.1736 = 2879.4 m

6 0
3 years ago
Which equation has infinitely many solutions?
raketka [301]

Answer:

C

Step-by-step explanation:

5.1 + 2y + 1.2 = -2 + 2y + 8.3 ( subtract 2y on each side)

5.1 + 1.2 = -2 + 8.3 ( collect like terms)

6.3 = 6.3

If the equation ends with a true statement (ex: 2=2) then you know that there's infinitely many solutions or all real numbers.

4 0
3 years ago
Read 2 more answers
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