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3 years ago

14

I need the answers to this asap and plz no links

2 answers:

hichkok12 [17]3 years ago

8 0

The answer is 30 ! Sub 3 and that's what you're answer should be

salantis [7]3 years ago

6 0

Answer:

See below.

Step-by-step explanation:

$6^2+x-x^2 for\\x = 3\\6^2+3-3^2 =30$

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Easy points. see image below

tatuchka [14]

Answer:

6

Given expression:

$\sf -(-(-3)) + 2 + |-7|$

Simplify following inside parenthesis

$\sf -3 + 2 + |-7|$

If following is |-a| then |-a| = a

$\sf -3 + 2 + 7$

Evaluate following

$\sf 6$

4 0

2 years ago

X^2 - 2x = 15 how do I solve this quadratic method?<br>I am stuck on it.... please help<br>

Anarel [89]

Answer:

(x - 5)(x + 3)

Step-by-step explanation:

to solve x² - 2x = 15, we need to get all the terms on one side so we can solve the quadratic equation using factoring. to do this, we subtract 15 from both sides

x² - 2x = 15

- 15 -15

x² - 2x - 15 = 0

now we can factor. we need 2 numbers that when multiplied together give us -15, and when those 2 numbers are added together we get -2

because we have a -15, we can assume that one number must be negative and the other positive, as a negative times a postive is a negative.

we can use 3 and -5 as factors and test it out. we put x in front because we have an x²

(x - 5)(x + 3) < we can FOIL to check to see if this is correct. its not mandatory to check but when you arent sure of the answer you can FOIL it out

FOIL stands for: First, Outside, Inside, and Last terms

F: (x - 5)(x + 3) = x²

O: (x - 5)(x + 3) = -3x

I: (x - 5)(x + 3) = 5x

L: (x - 5)(x + 3) = -15

x² + 3x - 5x - 15 < subtract 3x from 5x

x² - 2x - 15

this checks out, so our answer is (x - 5)(x + 3)

6 0

2 years ago

Read 2 more answers

Use the graphing tool to create a histogram of Gretchen’s data. Use eight bins for your histogram.

lozanna [386]

The number of bins in the histogram determines the width of the bins and

the frequency (number of members) in a bin.

Please find attached the graph of the histogram of Gretchen's data created with MS Excel.

<h3 /><h3>Method used to create the histogram of Gretchen's data</h3>

Given:

The table from Gretchen's data is presented as follows;

$\begin{tabular}{|c|c|} \underline{ Member}& \underline{Number of Days}\\x_1&2\\x_2&4\\x_3&7\\x_4&8\\x_5&12\\x_6&15\\x_7&10\\x_8&7\\x_9&9\\x_{10}&6\\x_{11}&13\\x_{12}&3\\x_{13}&8\\x_{14}&10\\x_{15}&10\end{array}\right]$

The required number of bins = 8 bins

The steps to create the histogram using MS Excel;

Enter the 15 dataset for the number of days as presented in the above table in a column on the worksheet.

Select the dataset entered into the cells from above then select the Insert menu.

In the Chart section of the insert menu click on the Histogram icon to view the quick options for histograms type charts.

Select the Histogram option from the drop down menu from the quick options for histograms, to create an histogram chart.

Right-click the histogram created from the previous step, then select Format Chart Area from the pop up menu.

In the Format Chart Area task pane, click on the arrow next to Chart Options, then select Horizontal Axis from the options menu.

Click on the histogram icon under Axis Options, then click on arrow button besides Axis Option sub menu, to display the axis options.

Click on the Number of bins radio button then enter 8, to create an histogram having 8 bins.

The histogram of Gretchen's data having eight bins created with MS Excel is attached.

Learn more about creating a histogram chart here:

brainly.com/question/25069221

brainly.com/question/4601962

5 0

2 years ago

in the circl below, AD is diameter and AB is tangent at A. Suppose mADC=228*, find the measures of mCAB and mCAD. Type your nume

Andrew [12]

Given:

AD is diameter of the circle, AB is the tangent, and measure of arc ADC is 228 degrees.

To find:

The $m\angle CAB$ and $m\angle CAD$ .

Solution:

AD is diameter of the circle. So, the measure of arc AD is 180 degrees.

$m(arcADC)=m(arcAD)+m(arcDC)$

$228^\circ=180^\circ+m(arcDC)$

$228^\circ-180^\circ+=m(arcDC)$

$48^\circ+=m(arcDC)$

The measure inscribed angle is half of the corresponding subtended arc.

$m\angle CAD=\dfrac{1}{2}\times m(arcDC)$

$m\angle CAD=\dfrac{1}{2}\times 48^\circ$

$m\angle CAD=24^\circ$

AB is the tangent. So, $m\angle BAD=90^\circ$ because radius is perpendicular on the tangent and the point of tangency.

$m\angle BAD=m\angle CAB+m\angle CAD$

$90^\circ=m\angle CAB+24^\circ$

$90^\circ -24^\circ=m\angle CAB$

$66^\circ=m\angle CAB$

Therefore, $m\angle CAB=66^\circ$ and $m\angle CAD=24^\circ$ .

4 0

2 years ago

Marc mixes blue and yellow paint to make his favorite shade of green, which he'll use to paint his house. He has 14 cans of blue

Vesnalui [34]

Answer:

2 : 3

Step-by-step explanation:

Total cans of blue paint = 14

Total cans of yellow paint = 20

Day 1:

Yellow paint = 6 cans

Blue paint = 4 cans

Ratio of blue paints to yellow paint

4 cans : 6 cans

= 2 : 3

Day 2:

Yellow paint = 9 cans

Blue paint = 6 cans

Ratio of blue paints to yellow paint

6 cans : 9 cans

2 : 3

The ratio of blue paint to yellow paint in the mixture is 2 : 3

Day 3:

Cans of yellow remaining after 2 days

Yellow paint = Total cans of yellow paint - day 1 cans of yellow paint - day 2 cans of yellow paint

= 20 - 6 - 9

= 20 - 15

= 5 cans

Cans of blue remaining after 2 days

Blue paint = Total cans of blue paint - day 1 cans of blue paint - day 2 cans of blue paint

= 14 - 4 - 6

= 14 - 10

= 4 cans

4 0

3 years ago