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3 years ago

Multiplicative inverse of 3/7 x 2/7

Mathematics

2 answers:

Ahat [919]3 years ago

6 0

<h3> $\frac{ - 7}{3} \times \frac{ - 7}{2}$ </h3>

It is the multiplicative inverse of 3/7 × 2/7

marin [14]3 years ago

5 0

<em>Sorry if I didn't understand the question right-</em>

Answer:

$\frac{49}{6}$

Step-by-step explanation:

The inverse of $\frac{3}{7}$ is $\frac{7}{3}$ .

The inverse of $\frac{2}{7}$ is $\frac{7}{2}$ .

Now we multiply:

$\frac{7}{3}$ × $\frac{7}{2}$ = $\frac{49}{6}$

Hope this helped :)

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Which of the following statements must be true about this diagram? Check all that apply.

Vinvika [58]

Answer:

The statements must be true are A , D , E

Step-by-step explanation:

* Lets explain the figure

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vertex whose measure is z°

- There a fact in the triangle is the measure of the exterior angle of a

triangle at one of its vertices is equal to the sum of the measures

of the two opposite interior angles to this vertex

∵ w° the measure of the exterior angle of the vertex whose measure

is z°

∵ x° , y° are the measures of the opposite interior angles of the angle

whose measure is z°

∴ w° = x° + y°

∴ w° > x°

∴ w° > y°

* Lets find the statements must be true

# w > x ⇒ A

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4 0

3 years ago

Read 2 more answers

Michael has 265 baseball cards. He wants to put them in packs of 9 cards each. How many cards will he have left over?

viktelen [127]

Michael will have 4 cards left because 265/9=29.4444444... then i do 29 (from the 29.4444) times 9 which gives me 261 and i did 265-261.

6 0

3 years ago

In geometry, Heron's formula (sometimes called Hero's formula), named after Hero of Alexandria, gives the area of a triangle by

Ksju [112]

Answer:

The area of ΔABC is 6√6 sq. yards.

Step-by-step explanation:

The area of a triangle using the Heron's formula is:

$A=\sqrt{s\cdot (s-a)\cdot (s-b)\cdot (s-c)}$

Here <em>s</em> is given as follows:

$s=\frac{a+b+c}{2}$

The sides of the triangle ABC are as follows:

AB = 6 yd

BC = 7 yd

CA = 5 yd

Compute the value of <em>s</em> as follows:

$s=\frac{a+b+c}{2}$

$=\frac{6+7+5}{2}\\\\=9$

Compute the area of ΔABC as follows:

$A=\sqrt{s\cdot (s-a)\cdot (s-b)\cdot (s-c)}$

$=\sqrt{9\cdot(9-6)\cdot(9-7)\cdot(9-5)}\\\\=\sqrt{9\times 3\times 2\times 4}\\\\=\sqrt{216}\\\\=\sqrt{36\times 6}\\\\=6\sqrt{6}$

Thus, the area of ΔABC is 6√6 sq. yards.

7 0

3 years ago

Find the sum of all integers 30 to 80, INCLUSIVE. (Is there a formula to do this?)

Marina86 [1]

Yes there is actually a formula for this. This is an arithmetic progression with a common difference of 1.

The sum of terms can be solved by using the formula

S = (n/2) * (a1 + an)

where S is the sum of the terms
n is the number of terms
a1 is the first term
an is the last term

we can calculate the number of terms, n by using the formula

an = a1 + (n-1)*d

d is the common difference equal to 1

therefore n = 51

substituting to the first equation

S = 2805

4 0

3 years ago

(-4,1) and (-8,7) <br><br> write an equation in slope-intercept form

Alchen [17]

Answer:

y = -2x - 9

Step-by-step explanation:

so we have our two points, (-4,-1) and (-8,7) What we need to do to find our slope is y2 - y1 over x2 - x1. Once plugging in the numbers and subtracting it should give you 8/-4. 8 divided by -4 is -2. m = -2. Now to find our "b" we plug in our slope, and plug in one of the two points into the format of y = mx + b.

-1 = -2(-4) + b

multiply -2 and -4

-1 = 8 + b

we subtract 8 from itself and -1

-9 = b

Our equation is y = -2x - 9

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3 years ago