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k0ka [10]
3 years ago
14

Thank you so much. (20 characters required)

Mathematics
1 answer:
padilas [110]3 years ago
6 0
#3.
 √18²-5.7²    Second Choice

#4
l²=5²+4² = 25+16 = = 41
l=√41
l= 6.4

Second Choice

#5 Only A --- First choice

#7 6 ----- Third choice

#8 V= \pi r^2(h)=  \pi 10^2(3) = 314(3)=942  units³ ---Second choice


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GuYs i need your help?!?!?! Are these ratios equevalent? 30:5 and 5 to 1 Yes or no!!!!!!!???????
Xelga [282]

Answer:

NO, it's 6 to 1

Step-by-step explanation:

30/5=6

5/5=1

6:1

8 0
3 years ago
Read 2 more answers
Can anyone help me, with at least the first one?
kirza4 [7]
3. r^2 + 2r - 35               4. a^2- 11a + 28
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    (m + 1)(m - 7)                   (m - 2)(m + 1)

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3 0
3 years ago
H(x) = 5.7 −19x<br><br> A. <br> -127.3<br> B. <br> -138.7<br> C. <br> 0.67<br> D. <br> 138.7
Vilka [71]

Answer:

x = 0.3 (see below)

Find the x intercept/zero.

To find x intercept/zero, subsitute H (x) = 0.

0 = 5.7 - 19x

Move the variable to the left hand side and change the symbol.

19x = 5.7

Now, divide both sides.

x = 0.3

Solution is 0.3

Alternate solution is x = 3/10.

Hope it helps!

6 0
4 years ago
Write the formula for the parabola that has x- intercepts (3,0) and (8,0), and y- intercept (0,−2)
alexira [117]

Answer:x^2-5x=-12(y+2)

Step-by-step explanation:

Given

Parabola has x-intercept has (3,0) and (8,0)

and Y-intercept as (0,-2)

Now the general equation of parabola is

y=ax^2+bx+c\quad \ldots(i)

Substitute  (0,-2) in (i) we get

-2=c

Now substitute (3,0) in equation (i)

0=a(3)^2+3b-2\quad \ldots(ii)

Now substitute (8,0) in equation (i)

0=a(8)^2+8b-2\quad \ldots(iii)

Solving (ii) and (iii) we get

a=\frac{-1}{12}\ \text{and}\ b=\frac{5}{12}

therefore

y=\frac{-x^2}{12}+\frac{5x}{12}-2

12y=-x^2+5x-24

5 0
4 years ago
Identify the biggest perfect square for 75
mr_godi [17]

Answer:

We just multiply 75 with 3 to make it a perfect square. This is because, 75 = 5 × 5 × 3. 3 doesn't have a pair. Thus 75 × 3 = 225 and √225 is 15.

Step-by-step explanation:

8 0
3 years ago
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