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wlad13 [49]
3 years ago
14

Please help me solve this #algebra #algebra1

Mathematics
1 answer:
Vesna [10]3 years ago
3 0

Answer:

h = 430

Step-by-step explanation:

1290 = h/10 + h/5             Make h/5 into something that is something / 10

1290 = h/10 + 2h/(5*2)     Clean up the brackets.

1290 = h/10 + 2h/10         Add the right.

1290 = 3h/10                    Multiply both sides by 10

1290*10 = 10(3h/10)          

12900 = 3h                       Divide both sides by 3

h = 430

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Find the inverse of the function.<br> f(x) = -3x + 7
LUCKY_DIMON [66]
F(x) = -3x + 7
y = -3x + 7
x = -3y + 7
-3y + 7 = x
-3y = x - 7
y = -1/3x + 7/3
f^-1(x) = -1/3x + 7/3
8 0
2 years ago
Help with my homework please! Will give brainliest
Anna71 [15]

Answer:

a) 72 cm^2

b) 9 cm^2

c) 9 cm^2

d) 60.39 cm^2

Step-by-step explanation:

a) the the length is 12 cm and the width is 6 cm. Area = lw

A=(12)(6)

A=72 cm^2

b) base equals 3 cm

Height equals 6 cm

A=1/2(3)(6)

A= 9 cm^2

c) base = 3 cm

height=6 cm

Area=1/2(3)(6)

A=9 cm^2

d) to to find the area of the parallelogram, You need to use Pythagorean theorem for one of the triangles.

3^2 + 6^2 = x^2

9 + 36 = x^2

45=x^2

✓45 = ✓x^2

x = 6.71 cm

12-3 = 9

now that you have all the sides for the parallelogram, multiply 6.71 times 9 to get the area.

A= 60.39 cm^2

6 0
3 years ago
Deon earns $91 washing 7 dogs. At this rate, how many dogs did Deon wash to earn $117?​
mamaluj [8]
$91/ 7 = $13 per dog
$117/$13 = 9 dogs
He washed 9 dogs
4 0
3 years ago
Can someone please answer this math problem and show your working
schepotkina [342]
378 because 49*3 and then add 35
3 0
3 years ago
An arithmetic sequence has a first term of 6.3 and a second term of 8.8 Which term has a value of 78.8?
slega [8]
First term [ a ] = 6.3

Common difference [ d ] = 8.8 - 6.3 = 2.5 

Using general term formula,

t_{n} = a + (n-1)d

78.8 = 6.3 + (n-1)*2.5

2.5*(n-1) = 72.5 [ Dividing both sides by 2.5 ]

n-1 = 29

n = 30

Hence, 78.8 is the 30th term in the arithmetic series.
4 0
3 years ago
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