Hey can you please make sure i got these two answers correct? Thanks <3

Answers

Answer 1

Answer: first one
use pythagorean theorem to find the height as in diagram atachmetn
4^2+h^2=8^2
16+h^2=64
minus 16
h^2=48
sqrt both sides
h=4√3

area=1/2bh
area=1/2(4)4√3
area=8√3
aprox
area=13.8
round
area=14cm^2
but that is only 1 triangle so double it
14*2=28cm^2

same as other, just cut along the black center line and rearanged
28 in^2

Answer 2

Answer: 1st 24 second your right ithink

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Emma volunteered at an animal shelter for a total of 119 hours over 6 weeks. Estimate the number of hours she volunteered each week
Esteban has a big jar of change in his room. He has 600 coins total, and 240 of them are pennies. What percentage of the coins are pennies?
I really need help with these and my dad said the way i originally did it was wrong.
Points V, W, X, Y, and Z are graphed on a number line. The coordinate of point V is –8. What points are at a distance of 5 units from point V?Choose all answers that are correct.A.W = –13B.X = –8C.Y = –3D.Z = 3

If f(x) is parallel to the line Y =3/4×+2/5
which function could be f(x)

Answers

Answer:

Any function that has the slope of 3/4

Reason:In order for the 2 functions to be parallel they must have an equal distance between them at all times ( meaning if one function has a slighty different slope, than the two will intersect and will no longer be parallel). So the only way for the two lines to be parallel is if the two functions have the same slope

Multiply. 560.9 • 2.8
A.15705.2
B.1570.52
C.157.052
D.15.7052

Answers

560.9
* 2.8
ignore the decimals and multiply, as whole numbers.
5609 * 28 = 157052
now since there were two spots behind the decimal, squeeze the decimal in the number.
1,570.52 is the answer. which is B

560.9 x 2.8 = 1570.52

Jamil pays $10.00 for a swim club membership and $1.50 for each day that he goes to the pool. The equation is c=1.5d+10. What is the dependent variable?

Answers

the dependent variable depends on the value of the independent variable

normally it is something like
dependent variable=something times independent variable+something

it is normally the result or what the equation is

therefor the dependent variable is c (how much he has to pay total)

A dependent variable is something that depends on other factors. In you problem the value of "c" depends on the amount of days Jamil goes swimming therefore c is the dependent variable and d is the independent variable

HElp me with this one but not with a big processs justa little one 8. Think of another quadratic equation that has two (2) real number solutions. Write the
equation in ax^2 + bx + c = 0 form. Then find the value of the discriminant to support your
answer.
9. Think of another quadratic equation that has one (1) real number solution. Write the
equation in ax^2 + bx + c = 0 form. Then find the value of the discriminant to support your
answer.
10. Think of another quadratic equation that has no (0) real number solutions. Write the
equation in ax^2 + bx + c = 0 form. Then find the value of the discriminant to support your
answer.

Answers

so 2 real solutions
just write 2 factors and expand
(x-3)(x-4)=0
x^2-7x+12=0
discriminant is when you have b^2-4ac
so subsitute
ax^2+bx+c=0
a=1
b=-7
c=12
-7^2-4(1)(12)
49-48=1
discriminant=1

one real solution would be
(x-1)(x-1)=0
x^2-2x+1=0
discriminant=-2^2-4(1)(1)=4-4=0
discriminant=0

no real solutions has the discriminant less than zero
let's say that b=1 and c=20 and a=1
basically, we need a set of numbers where b^2 is less than 4acso

1^2-4(1)(20)=1-80=-79
then we subsitute
x^2+x+20=0

Plz help plzzzzzzzzz

Answers

Answer:

47.13

Step-by-step explanation:

c=2πr

c=2×3.142×7.5cm

c=6.284×7.5cm

c=47.13cm

Answer:

47.13cm

Step-by-step explanation:

2×3.142×7.5cm

What is the square root of 8x-32

Answers

√8(x-4) The expression can only be put into surd form and factorised!