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2 years ago

Helpppppp!!!!!!!!!!!!!!

Mathematics

2 answers:

Leviafan [203]2 years ago

6 0

Answer:

Amanda spent $150.31. When 8 is substituted for g and 3 is substituted for t, the expression simplifies to 132.4 + 17.91.

Step-by-step explanation:

g = # of gallons of paint for $16.55 per gallon

t = # of pints of paint thinner for $5.97 per pint

Amanda bought 8 gallons of paint and 3 pints of paint thinner. To find out how much money she spent, just substitute 8 for g and 3 for t in the expression you selected.

16.55(8) + 5.97(3) = $150.31

Hope this helps!

vekshin12 years ago

4 0

Answer:

Step-by-step explanation:

bc everything lines up

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Anyone know how to do this with a explanation ?

storchak [24]

Answer:

30 degrees

Step-by-step explanation:

Since we know that all triangles equal 180 degrees, we can add the 2 given angles and subtract that from 180 to find the remaining angle.

90+60=150

180-150=30 degrees

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3 years ago

Find tan A and tan B.

Alex

Step-by-step explanation:

$\tan(a) = \frac{26}{10} = 2.6 \\ \tan(b) = \frac{10}{26}$

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2 years ago

A circular flower bed is 24m in diameter and has a circular sidewalk around it that is 2m wide. Find the area of the sidewalk in

sp2606 [1]

Answer:

163.3m²

Step-by-step explanation:

area = Pi(r²)

r = d / 2

r = 12

12² = 144

144 x 3.14 = 452.16

diameter of bigger circle = 24 + 4 (2 on each side)

28 / 2 = 14

14² = 196

196 x 3.14 = 615.44

sidewalk = bigger - smaller

sidewalk = 615.44 - 452.16

sidewalk = 163.3

4 0

2 years ago

A,B and C are the vertices of one triangle.

dsp73

Answer:

Step-by-step explanation:

Given: The triangle with coordinate A(4,6), B(2,-2) and C(-2,-4). D is the mid point of AB and E is the mid point of AC.

To prove: DE is parallel to BC.

Construction: Join DE.

Proof: If we prove the basic proportionality theorem that is $\frac{AD}{DB}=\frac{AE}{EC}$ , then it proves that DE is parallel to BC.

Now, Mid Point D has coordinates= $(\frac{4+2}{2},\frac{6-2}{2})=(3,2)$ and Mid Point E has coordinates= $(\frac{4-2}{2},\frac{6-4}{2})=(1,1)$

Now, AD= $\sqrt{(4-3)^{2}+(6-2)^{2}}=\sqrt{17}$

DB= $\sqrt{(3-2)^{2}+(2+2)^{2}}=\sqrt{17}$

AE= $\sqrt{(4-1)^{2}+(6-1)^{2}}=\sqrt{34}$

EC= $\sqrt{(1+2)^{2}+(1+4)^{2}}=\sqrt{34}$

Now, $\frac{AD}{DB}=\frac{AE}{EC}$

= $\frac{\sqrt{17}}{\sqrt{17}}=\frac{\sqrt{34}}{\sqrt{34}}=\frac{1}{1}$

Hence, $\frac{AD}{DB}=\frac{AE}{EC}$

Thus, By basic proportionality theorem, DE is parallel to BC.

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3 years ago

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Whats the square root of 25

liberstina [14]

the square root of 25 is 5 i hope this helped and enjoy your day!

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3 years ago

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