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3 years ago

On the grid below, which point is located in the quadrant where the x- and y-coordinates are both negative numbers?

Mathematics

2 answers:

lana66690 [7]3 years ago

8 0

it would be C uebeuwuehejwuhdbeuwuwbdjdjd

Gnom [1K]3 years ago

3 0

Answer : c
explanation : because i said so

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Equations, Their Slopes And Y-intercepts. Please 9,11 and 12 question! Thank you!)

MakcuM [25]

Hey there!

(9) 2x-9y=45

... -9y=-2x+45

... y = (2/9)x - 5

Slope = 2/9

y-intercept = (0,-5)

(11) 3y+2x=-15

... 3y=-2x-15

... y = (-2/3)x - 5

Slope = -2/3

y-intercept = (0,-5)

(12) 10x+8y=40

... 8y=-10x+40

... y=(-10/8)x+5

Slope = -5/4 (after simplifying )

y-intercept = (0,5)

Hope my answer helps!

3 0

3 years ago

Read 2 more answers

Find the number of faces, edges and vertices of the solid.

JulsSmile [24]

Answer: 6 faces 12 edges 8 verticies

Step-by-step explanation:

7 0

3 years ago

A lot runs between two parallel streets. The length of the lot on one of the streets is 160-ft. The length of the lot on the oth

Daniel [21]

Answer:

Step-by-step explanation:Area = 1/2(b1 + b2)x h

Area = 18,000 ft^2

b1 = 80 ft

b2 = 100 ft

18,000 = 1/2(80 + 100) x h

36,000 = (180)h

h = 36,000/180

h = 200ft.

This is the distance between streets.

Hope this helps :-)Area = 1/2(b1 + b2)x h

Area = 18,000 ft^2

b1 = 80 ft

b2 = 100 ft

18,000 = 1/2(80 + 100) x h

36,000 = (180)h

h = 36,000/180

h = 200ft.

This is the distance between streets.

Hope this helps :-)

3 0

3 years ago

Find the positive base $b$ in which the equation $5_b \cdot 23_b = 151_b$ is valid.

DanielleElmas [232]

Answer:

b=7

Step-by-step explanation:

We want to determine the positive base b in which:

$5_b \cdot 23_b = 151_b$

The easiest way to approach this is to convert all the numbers to base 10.

$5_b=5Xb^0=5\\23_b =(2Xb^1)+(3Xb^0)=2b+3\\151_b=(1Xb^2)+(5Xb^1)+(1Xb^0)=b^2+5b+1\\Therefore:\\5_b \cdot 23_b = 151_b\\5(2b+3)=b^2+5b+1\\10b+15=b^2+5b+1\\b^2+5b+1-10b-15=0$

$b^2-5b-14=0$

Next, we factorize the resulting expression.

$b^2-5b-14=b^2-7b+2b-14=0\\b(b-7)+2(b-7)=0\\(b-7)(b+2)=0\\b-7=0\: or \: b+2=0\\b=7\: or \: b=-2$

The positive value of b for which the equality hold is 7.

3 0

3 years ago

Mary pays income tax according to the graduated schedule shown below. A 3-column table with 6 rows. Column 1 is labeled If taxab

Katarina [22]

Answer:

$13564

Step-by-step explanation:

$\left|\begin{array}{c|c|c}$If taxable&& \\$income&&\\$ is over&$but not over&$the tax is\\---&---&---\\$0 &7,825 &$10\% of the amount over 0\\7,825 &31,850 &$782.50 plus $15\% $ of the amount over 7,825$ \end{array}\right|$ $\left|\begin{array}{c|c|c}31,850 &77,100 &$4,386.25 plus 25\% of the amount over 31,850 \\77,100 &160,850 &$15,698.75 plus 28\% of the amount over 77,100\end{array}\right|$

$\left|\begin{array}{c|c|c}160,850 &349,700 &$39,148.75 plus 33\% of the amount over 160,850 \\349,700 &$no limit&$101,469.25 plus 35\% of the amount over 349,700\end{array}\right|$

Mary’s taxable income= $68,562

From the table, If taxable income is over $31,850 but not over $77,100

The tax = $4386.25 + 25% of the amount over 31,850

Amount over $31,850=$68,562-$31,850

=$36,712

Therefore:

Mary's tax = $4386.25 + (25% of $36,712)

=$4386.25 +9,178

=$13564.25

=$13564 (to the nearest dollar)

5 0

3 years ago

Read 2 more answers