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2 years ago

Ayuda porfa 3x + 20 = 80+60

Mathematics

1 answer:

svetlana [45]2 years ago

3 0

Answer:

Step-by-step explanation:

3x + 20

You will need to find out what x represents by doing that you add 80+60 which equals 140 now you know what your missing

3 times what + 20 equals 140

40×3=120+20=140

Your answer would be 3•40+20=140

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Find the scale factor,and find the unknown side lengths.<br> Help if you can please

Burka [1]

Step-by-step explanation:

Solution,

since two of these triangle are similar so,

i) LK/LJ=MN/NO

or,j/8=18/12

or,j=18×8/12

.°. j = 12m

ii)JK/JL=MO/NO

or,10/8=n/12

or,120/8=n

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3 years ago

Solve the equation on the interval [0,2pi] 5sec(x)+7=-3

vovangra [49]

Answer:

Hello,

$x\in \bigg\{\dfrac{2\pi}{3} ,\dfrac{4\pi}{3}\bigg\}\\$

Step-by-step explanation:

$5*sec(x)+7=-3\\\\sec(x)=\dfrac{-10}{5} \\\\\dfrac{1}{cos(x)} =-2\\\\cos(x)=-\dfrac{1}{2} \\\\x=120^o\ or\ x=240^o\\$

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2 years ago

Read 2 more answers

Which one is correct? Please hurry...the audio is just reading the question.

Darina [25.2K]

Answer:

n = 18

Step-by-step explanation:

18/27 = 12/n

18 * n = 12 * 27

18n = 324

n = 324/18

n = 18

7 0

2 years ago

A giraffe can run 40 meters per second what is its speed in miles per hour

lora16 [44]

Bearing in mind that, there are

60 seconds in 1 minute,
60 minutes in 1 hr,
1000 meters in 1 km,
and 1.609 km in 1 mile

$\bf \cfrac{40\underline{m}}{\underline{s}}\cdot \cfrac{60\underline{s}}{\underline{min}}\cdot \cfrac{60\underline{min}}{hr}\cdot \cfrac{\underline{km}}{1000\underline{m}}\cdot \cfrac{mi}{1.609\underline{km}}\implies \cfrac{40\cdot 60\cdot 60\cdot mi}{hr\cdot 1000\cdot 1.609}
\\\\\\
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2 years ago

What is the answer to this question?

timurjin [86]

Answer: Option 1

Step-by-step explanation:

See attached image

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1 year ago