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KATRIN_1 [288]
3 years ago
8

I need help plsmy teacher doesn't help..​

Mathematics
2 answers:
snow_tiger [21]3 years ago
7 0

Answer:

r = 6

Step-by-step explanation:

1 - r = -5

Subtract 1 from both sides

-r = -6

r = 6

Zarrin [17]3 years ago
4 0

Answer: r=6

no problem

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A parallelogram has sides 10m and 12m and an angle of 45°. Find the distance between the 12m-sides.
stich3 [128]

Answer:

The distance between 12m-sides is 5\sqrt{2}m.

Step-by-step explanation:

It is given that the parallelogram has sides 10m and 12m and an angle of 45°.

Draw an altitude from one 12m side to another 12 m side as shown in below figure.

The opposite angles of parallelogram are same. Two angles are obtuse angles and two are acute angle.

Since angle C is acute angle therefore it must be 45 degree.

\sin\theta=\frac{perpendicular}{hypotenuse}

\sin C=\frac{BE}{BC}

\sin(45^{\circ})=\frac{d}{10}

\frac{1}{\sqrt{2}}=\frac{d}{10}

\frac{10}{\sqrt{2}}=d

\frac{10}{\sqrt{2}}\times \frac{\sqrt{2}}{\sqrt{2}}=d

\frac{10\sqrt{2}}{2}=d

5\sqrt{2}=d

Therefore the distance between 12m-sides is 5\sqrt{2}m.

4 0
3 years ago
Molly can either take her lunch or buy it at school. It cost $1.95 to buy lunch. If she wants to spend no more than $30 each mon
ICE Princess25 [194]
The answer is 16 days because 30/ 1.85 = 16 days
3 0
3 years ago
A bouquet has 30 flowers. 21 are carnations.
Serga [27]

Answer

30%

Step-by-step explanation:

21 is 70% of 30. 100-70= 30

6 0
2 years ago
If ​f(x) = <img src="https://tex.z-dn.net/?f=%5Csqrt%7Bx%7D" id="TexFormula1" title="\sqrt{x}" alt="\sqrt{x}" align="absmiddle"
kogti [31]

Answer:

Step-by-step explanation:

Given are two functions f and g defined as

f(x) =\sqrt{x} \\g(x) = x^3+8

we have to find the composition of functions in all orders

1) a)(fog)(x)=f{g(x)}=f(x^3+8) =\sqrt{x^3+8} \\\\(fog)(2) = =4,-4

b) (fof)(x) = f{f(x)}=f(\sqrt{x} {=\sqrt[4]{x} \\\\When x=25, ans= \sqrt{5}

c) (gof)(x) = g(\sqrt{x}) = (\sqrt{x})^3+3 = x^{\frac{3}{2} } +8\\\\d)(fog)(x)=f{g(x)}=f(x^3+8)

8 0
3 years ago
I need help solving this
viktelen [127]

Answer:

44 hope it helps

Step-by-step explanation:

6 0
3 years ago
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