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klemol [59]
2 years ago
15

Please help. Offering all the points I have.

Mathematics
1 answer:
Simora [160]2 years ago
8 0

The most specific name of the quadrilateral that's is drawn in the picture is a rhombus.

<h3>What is a rhombus?</h3>

It should be noted that a rhombus simony means a quadrilateral that has four sides and the total angles are 360°.

Also, from the information given, it can be depicted that the lengths are congruent and that the opposite sides are parallel.

Learn more about rhombus on:

brainly.com/question/20627264

#SPJ1

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Rearrange x = 7y - 5 to make y the subject.
nalin [4]

By rearranging x = 7y - 5 to make y the subject, we get

x + 5 = 7y ( By transposition method )

or, \huge \purple {\tt {\frac{x + 5}{7}  = y}}

<h2>Answer:</h2>

\huge \pink {\tt {y =  \frac{x + 5}{7}}}

3 0
3 years ago
Please help!<br><br> If sin(xº)=cos(yº) find k if x=2k+3 and y=6k+7
USPshnik [31]

answer

10

step-by-step explanation

the equation given is sin(x) = cos(y) with x = 2k + 3 and y = 6k + 7

substitute in 2k+ 3 for x in sin(x) and substitute in 6k + 7 for y in cos(y)

sin(x) = cos(y)

sin(2k + 3) = cos(6k + 7)

we know that sin(x) = cos(90 -x)

sin(2k + 3)

= cos(90 - (2k + 3) )

= cos(90 - 2k - 3)

= cos(87 - 2k)

substitute this into the equation sin(2k + 3) = cos(6k + 7)

sin(2k + 3) = cos(6k + 7)

cos(87 - 2k) = cos(6k + 7)

87 - 2k = 6k +7

80 = 8k

k = 10

7 0
3 years ago
All of the following proportions are equivalent except
shtirl [24]
All are equal except A/D = C/B

I replaced the values with numbers
a=5 b=10 c=50 d=100

10/5=100/50 so it’s not b/a = d/c
5/10=50/100 so it’s not a/b = c/d
5/50 = 10/100 so it’s not a/c = b/d
5/100 is NOT 50/10 so it’s NOT a/d = c/b
8 0
3 years ago
NEED ANSWERS CORRECT ONES NEED NOW WILL MARK BRAINLIEST...
nadya68 [22]

(a) There are 1/4 cups of flour per serving

<u>Work:</u> 1.5/6=1/4

(b) There are aprox. .18 cups of sugar per serving.

<u>Work:</u> 9/12+4/12=13/12 n then divide 13/12 by 6

(c) You need 2 1/4 cups of flour to make 9 servings

<u>Work:</u> 1.5/2=.75        1.5+.75=2.25=2 1/4 cups

(d) Someone would need to know the amount of sugar per serving to make the recipe accurate.

<em>Question 2</em>

(a) You're account is at $10 dollars

<u>Work:</u> $5x5 (days)=$25. add 25 to -15 and you have $10 dollars in you're account.

(b) 5 days.

<u>Work:</u> 10/2=5    10-10=$0


6 0
3 years ago
A pyramid-shaped vat has square cross-section and stands on its tip. The dimensions at the top are 2 m × 2 m, and the depth is 5
Strike441 [17]

Answer:

the water level increases at a rate of 1.718 m/min when the depth is 4 m

Step-by-step explanation:

the volume of the pyramid is

V = (1/3)(height)(area of base) = 1/3 H*L²

For the diagonal in the pyramid

tg Ф = Side Length/ Height = L / H = x / h

where h= depth of water , x= side of the corresponding cross section

therefore x= L *h/H

the volume of the water is

v= 1/3 h*x² = 1/3 (L/H)² h³

in terms of time

v = Q*t

then

Q*t = 1/3 (L/H)² h³

h³ = 3*(H/L)² *Q *t

h = ∛(3*(H/L)² *Q *t) = ∛(3*(H/L)² *Q) *∛t = k* ∛t , where k=∛(3*(H/L)² *Q)

h = k* ∛t

then the rate of increase in depth is dh/dt

dh/dt = 1/3*k* t^(-2/3)

since

t = (h/k)³

dh/dt = 1/3*k* t^(-2/3) = 1/3*k* (h/k)³ ^(-2/3)  = 1/3*k* (h/k)^(-2) = 1/3 k³ / h²

=  1/3 (3*(H/L)²*Q) / h²  = (H/L)²*Q /h²

dh/dt= [H/(h*L)]²*Q

replacing values, when h=4m

dh/dt= [H/(h*L)]²*Q  = [5m/(4m*2m)]² * (3m³/min)= 1.718 m/min

8 0
3 years ago
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