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2 years ago

Can someone help i don't understand this

Mathematics

1 answer:

Fantom [35]2 years ago

8 0

A) h = 2sqrt2 because for a 45-45-90 triangle both legs have the same measurement and to find the hypotenuse, you would multiply the leg by square root of 2.

b) d = sqrt3 because in order to find the short leg for a 30-60-90 triangle, you would need to divide your long leg by a square root of 3 (if you have the hypotenuse and wanted to find the short leg, divide the hypotenuse by 2).

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Has a slope of 1/2 and passes through the point (-2, 4). Need the equation please

nikklg [1K]

Answer: Mark me brainliest..

Step-by-step explanation: and imma put the answer inside the comments if you do so. youve got nothing to lose! :D

5 0

3 years ago

Read 2 more answers

A coffee shop uses 4 liters of milk every day.

Alina [70]

Answer:

explained

Step-by-step explanation:

a. daily requirement of milk = 4 liters

15 liters of milk is present

this 15 liters of milk will be used up in $\frac{15}{4}$ days

= 3(3/4) days , so after 3 days only more milk will be required to purchase.

b. daily milk consumption is reduced to half = 2 liters

Now, 15 liters of milk will be used up in $\frac{15}{2}$ = 7.5 or 7(1/2) days.

Hence now milk will be purchased after 7 days.

6 0

3 years ago

Help me with this!! I dont understand this question

Thepotemich [5.8K]

Answer:

3) C

Step-by-step explanation:

The question is asking which pair is equal. Work through each problem to solve.

8(2r) and 10r

16r ≠ 10r

6r + 3 and 9r

6r + 3 ≠ 9r

9(3r - 4) and 27r - 36

27r - 36 = 27r - 36

r + r + r + r + r and r⁵

5r ≠ r⁵

7 0

4 years ago

Please help with this asappppppppll

Alenkinab [10]

We are given with a circle and we need to find the equation of the circle , but first let's recall that , the equation of a circle with radius 'r' and centre at (h,k) is given by ${\bf{(x-h)^{2}+(y-k)^{2}=r^{2}}}$

Now , here as as the circle cuts the +ve x-axis at (9,0) . So , it's radius is 9 units or the 2nd way is to measure the distance from centre of the circle to the point where the circle cuts the graph , as the centre is at Origin , so here (h,k) = (0,0) .Which means that the centre is located at the point whose coordinates are (0,0) which is also known as origin . Now , finding the equation of the circle :-

${:\implies \quad \sf (x-0)^{2}+(y-0)^{2}=(9)^{2}}$

${:\implies \quad \bf \therefore \quad \underline{\underline{x^{2}+y^{2}=81}}}$

This is the required equation of Circle

7 0

3 years ago

Twenty is 150% of what number

Oxana [17]

13.33.

We have, 150% × x = 20

or,

150

100

× x = 20

Multiplying both sides by 100 and dividing both sides by 150,

we have x = 20 ×

100

150

x = 13.33

If you are using a calculator, simply enter 20×100÷150, which will give you the answer.

Oi, give flamenco brainliest.

3 0

3 years ago