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3 years ago

PLEASE HELP I DONT UNDERSTAND 40 POINTS

Mathematics

1 answer:

fomenos3 years ago

8 0

Answer:

a. reflection over y axis, then reflection over x-axis

b. xy=qh, xz=qj, yz=jh

c.Both triangles are congruent because all of the sides are congruent

Step-by-step explanation:

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GIVE THE RIGHT ANSWER AND PROVE THAT ITS RIGHT

SSSSS [86.1K]

a = 56

given 28 = $\frac{1}{2}$ a

multiply both sides by 2 to eliminate the fraction

56 = a

As a check

$\frac{1}{2}$ × 56 = 28 ← True

3 0

3 years ago

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Help, I need it by 9:00 am

olya-2409 [2.1K]

<h3>Answer:</h3>

Option B. because all rational numbers are integers.

Have a look at the above venn diagram showing the relationship between - Real, irrational, rational, integers, whole and natural numbers.

$\longrightarrow{\green{Option \: B.}}⟶Option \: B.$

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2 years ago

What product is greater than 3/5

spayn [35]

Answer: 4/6+4/6 is 8/12 and bigger than 3/5

Step-by-step explanation:

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2 years ago

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Anyone know this?? it’s finding the sine of a triangle!!

LenKa [72]

Answer:

I'm not sure what you want me to answer from this, so I solved for every variable:

Angle A: 83°

Side b: 6.29

Side c: 5.8

Step-by-step explanation:

-----Angle A:

Since the sum of the interior angles of a triangle ALWAYS equal 180°, we can solve for angle A as follows:

$A+51+46=180\\A+97=180\\A=83$

-----Side b:

Here, we use the sin rule for finding sides, since we know all of the angles as well as one side:

$\frac{a}{sin(A)} =\frac{b}{sin(B)} \\\frac{8}{sin(83)} =\frac{b}{sin(51)} \\8.06=\frac{b}{0.78} \\6.29=b$

-----Side c:

$\frac{a}{sin(A)} =\frac{c}{sin(C)} \\\frac{8}{sin(83)}=\frac{c}{sin(46)} \\8.06=\frac{c}{0.72} \\5.8=c$

7 0

2 years ago

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Let R(x), C(x), and P(x) be, respectively, the revenue, cost, and profit, in dollars, from the production and sale of x it

sp2606 [1]

Answer:

$P(x) = -0.004x^2 - 3.7x - 50$

Step-by-step explanation:

We have to find profit $P(x)$ .

This can be easily found using a formula for Profit given the Revenue and Cost.

$Profit = Revenue - Cost$

$P(x) = R(x) - C(x)$

Given that:

$R(x) = 6x$

$C(x) = 0.004x^2 + 2.3x + 50$

to find P(x) we can simply subtract R(x) by C(x).

$P(x) = R(x) - C(x)$

$P(x) = (6x) - (0.004x^2 + 2.3x + 50)$

$P(x) = 6x - 0.004x^2 - 2.3x - 50$

and finally, after simplify this equation subtracting 6x by 2.3x.

this is the equation for the profit $P(x)$

$P(x) = -0.004x^2 - 3.7x - 50$

3 0

3 years ago