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REY [17]
3 years ago
7

Solve x 9/× = x/4 what is x​

Mathematics
1 answer:
Semmy [17]3 years ago
4 0

Answer:

x = - 6, x = 6

Step-by-step explanation:

\frac{9}{x}  =  \frac{x}{4}  \\  \\ x \times x = 9 \times 4 \\  \\  {x}^{2}  = 36 \\  \\ x =   \pm\sqrt{36}  \\  \\ x =  \pm 6 \\  \\ x =  - 6,  \:  \: x = 6

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10
schepotkina [342]

Answer:

3.56 cm.

Step-by-step explanation:

1/3 π r^2 h = V

1/3 π (5.13)^2 h  = 98

h = 98 / (1/3 π (5.13)^2)

=  98 / 27.55899

= 3.556.

3 0
3 years ago
Can someone please tell me the measure of the angle? thanks
HACTEHA [7]
A = < 90°

the measure of the angle is less than 90
6 0
4 years ago
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A phone company offers two monthly plans. Plan A costs
Rus_ich [418]

For plan A it will only take five minutes to amount to $20.50

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3 years ago
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Daniel puts some wheat flour into an empty bowl. Then he add 2/3 cup rye flour to make a total of 2 5/12 cups of flour. How much
lozanna [386]

Answer:

1 3/4 cups of wheat flour is in the bowl

Step-by-step explanation:

x + 2/3 = 2 5/12

First, convert the 2/3 to 12ths by multiplying numerator and denominator by 4 = 8/12

Then convert the 2 5/12 to an improper fraction 29/12

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subtract 8/12 from both sides

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6 0
3 years ago
15. Jessica is trying to hire a babysitter that charges less than $10 per hour (not including any extra fees).
tresset_1 [31]

Answer:

A. and B.

Step-by-step explanation:

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