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Nesterboy [21]
4 years ago
7

I need help with 10 please

Mathematics
1 answer:
Mrrafil [7]4 years ago
6 0

Answer:

254 cm^{2}

Step-by-step explanation:

Surface Area = 2Lh+2Lw+2wh

L=4 cm

h=9 cm

w=7 cm

Surface Area = 2(4)(9)+2(4)(7)+2(7)(9)

Surface Area = (72+ 56 +126)cm^{2}

Surface Area = (72+ 56 +126)cm^{2}

Surface Area =254 cm^{2}

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If you have a tank and you fill it up but on 3/4 of it how much is it in a percentage
alexgriva [62]

Answer:

75% 3/4 is .75

Step-by-step explanation:

Hope this helped your answer is 75%

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4 years ago
Is 17 heart beats in 15 seconds and 68 heart beats in 60 seconds equivalent. Why
bulgar [2K]
Yes because if you divide 17 by 15 you get about 1.133 and if you divide 68 by 60 you also get about 1.133
4 0
4 years ago
The ratio of the measures of the three angles in a triangle is 14:5:11. Find the measure of all the angles
Leona [35]
Hey there,

Answer:
Angle sum in triangle = 180 °

14 : 5: 11
Total units = 30u
30 units = 180°
1 unit = 180° / 30
          = 6°
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              =84°
5 units = 6 x 5
            = 30°
11 units = 11 x 5
             = 55°

Hope this helps :D

<em>~Top♥</em>
4 0
3 years ago
Read 2 more answers
Your family plans to start a small business in your neighborhood. Your father borrows $10,000 from the bank at an annual interes
valkas [14]

Answer:

$2400

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 8%/100 = 0.08 per year,

putting time into years for simplicity,

36 months ÷ 12 months/year = 3 years,

then, solving our equation

I = 10000 × 0.08 × 3 = 2400

I = $ 2,400.00

The simple interest accumulated

on a principal of $ 10,000.00

at a rate of 8% per year

for 3 years (36 months) is $ 2,400.00.

8 0
3 years ago
Determine if the equations are intersecting, parallel, or coincident.
aleksandrvk [35]
Since bx does not contain the variable to solve for, move it to the right-hand side of the equation by subtracting bx from both sides. 
<span>-ay=-bx+2 </span>
<span>ax+by=3 </span>

<span>Divide each term in the equation by -1a. </span>
<span>y=(bx-2)/(a) </span>
<span>ax+by=3 </span>

<span>Divide each term in the numerator by the denominator. </span>
<span>y=(bx)/(a)-(2)/(a) </span>
<span>ax+by=3 </span>

<span>The equation is not linear, so the slope does not exist. </span>
<span>No slope can be found. </span>
<span>ax+by=3 </span>

<span>Since ax does not contain the variable to solve for, move it to the right-hand side of the equation by subtracting ax from both sides. </span>
<span>No slope can be found. </span>
<span>by=-ax+3 </span>

<span>Remove the common factors that were cancelled out. </span>
<span>No slope can be found. </span>
<span>y=-(ax)/(b)+(3)/(b) </span>

<span>Divide each term in the equation by b. </span>
<span>No slope can be found. </span>
<span>y=(-ax+3)/(b) </span>

<span>Divide each term in the numerator by the denominator. </span>
<span>No slope can be found. </span>
<span>y=-(ax)/(b)+(3)/(b) </span>

<span>The equation is not linear, so the slope does not exist. </span>
<span>No slope can be found. </span>
<span>No slope can be found. </span>

<span>Compare the slopes (m) of the two equations. </span>
<span>m1=, m2= </span>

<span>The equations are parallel because the slopes of the two lines are equal.  
</span>FROM YAHOO ANSWER
6 0
3 years ago
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