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poizon [28]
2 years ago
7

Please please help asap

Mathematics
2 answers:
Irina18 [472]2 years ago
5 0

Simplify this by solving for t like you would in any other equation.

-4t≥28

<em>*Divide both sides by -4*</em>

t≥-7

<em>*When dividing or multiplying by a negative in an inequality, flip the sign*</em>

t≤-7

Hope this helps!!

MrMuchimi2 years ago
4 0

Answer:

bottom left,

Step-by-step explanation:

when you solve out the problem, that is the answer.

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8x – 10 = 3x – 10 + 7x
stira [4]

Answer:

x= 0

Step-by-step explanation:

Let's first simplify the equation to make the PEMDAS process easier.

8x-10=3x-10+7x

8x-10=10x-10

Now lets start the subtracting and dividing process.

8x=10x

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6 0
3 years ago
• a helicopter hovering at 10 m above the ground is shining a spotlight at a person 30 m away1 . if the person is 2 m tall how l
pshichka [43]

As shown in the figure

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Distance from the base to the point where the person is standing=30 m

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∵ ∠B= ∠D=90°

∠C is common.

So by AA similarity ΔABC and ΔEDC are similar.

As we know when triangles are similar their sides are proportional.

AB/AD =BC/DC

Let DC=x meter

⇒\frac{10}{x}=\frac{30+x}{x}

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2. volume of a sphere of radius r is v (r) =\frac{4}{3}π r^{3}

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       =4πr^2


surface area of a sphere of radius r is 4πr^2

b)  Ratio of derivative of volume of sphere to surface area of sphere=\frac{4\pi r^2}{4\pi r^2}

             =1  [ incomplete question but you have written few words ]

4 0
2 years ago
1. You purchase a bag of chips that cost $4. The sales tax is 6.5% what will be the total cost.
Yuliya22 [10]

Answer:

the first one is 3.74 and the second one is 6%

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Step-by-step explanation

6 0
2 years ago
Read 2 more answers
If AD=20 and AC=3x+4, find the value of x. Then find AC and DC.<br><br> I don't understand.
Fofino [41]
<span>Using the information we have 3x+4=40 Do the same to each side of the equation to eliminate for x. 3x+4=40 Minus 4 from each side 3x=40-4 3x=36 Divide 3 from each side x=36/3 x=12 AC=3x+4 insert the value of x 3(12)+4=40 AC=40 AD=20</span>
5 0
3 years ago
melinda will take 15 quizzes this semester. she would like to score a b are better on at least 90% of them. so far. she gotten a
dimaraw [331]

Answer:

i hope this helps, i got  x + 5 ≤ 13 as ur equation

Step-by-step explanation:

7 0
2 years ago
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