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2 years ago

9

Multiply:

2 answers:

hammer [34]2 years ago

8 0

Answer:

$2\times \left(-21\right)\times \:7$

<u> PEMDAS order of operations:</u>

<u /> $2\times \left(-21\right)=-2\times \:21=-42$ <u />

<u /> $=-42\times \:7$ <u />

<u /> $=-294$ <u />

<u>D) -294</u><u> is your answer</u>

<u>OAmalOHopeO</u>

umka2103 [35]2 years ago

5 0

Use pemdas order & that’ll get you to your answer which is D) -294

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A triangle has side lengths of (1.3f+2.9g)(1.3f+2.9g) centimeters, (1.1f-7.7h)(1.1f−7.7h) centimeters, and (2.3h+1.5g)(2.3h+1.5g

VikaD [51]

Answer:

Perimeter of the triangle = (2.4f+4.4g-5.4h) centimeters.

Step-by-step explanation:

It is given that, a triangle has side lengths of (1.3f+2.9g) cm, (1.1f-7.7h)cm, and (2.3h+1.5g) cm.

We have to find the expression which represents the perimeter, in centimeters, of the triangle.

Perimeter of a triangle = Sum of its all the sides.

$Perimeter=(1.3f+2.9g)+(1.1f-7.7h)+(2.3h+1.5g)$

On combining like terms, we get

$Perimeter=(1.3f+1.1f)+(2.9g+1.5g)+(-7.7h+2.3h)$

$Perimeter=2.4f+4.4g+(-5.4h)$

$Perimeter=2.4f+4.4g-5.4h$

Therefore, the perimeter of the triangle is (2.4f+4.4g-5.4h) centimeters.

8 0

3 years ago

For a dinner party, a catering company charges a set fee $150 plus $20 per person. How much will it cost for 35 people to attend

const2013 [10]

Answer:

$700 for 35 people but if you want to add the fee it will be $850

3 0

3 years ago

Wilmer went up a hill for x minutes at a speed of y kilometers per minutes. Then he went down the same path at a speed of z kilo

dedylja [7]

Answer:

$xy=wz$

Step-by-step explanation:

Given that:

Speed of Wilmer up the hill = $y$ km/min

Time taken up the hill = $x$ minutes

Speed of Wilmer down the hill = $z$ km/min

Time taken up the hill = $w$ minutes

Distance can be calculated by multiplying the Speed with Time i.e.

The formula for distance is given as:

$Distance = Speed \times Time$

Distance up the hill = $y\times x =xy\ kilometers$

Distance down the hill = $z\times w =wz\ kilometers$

It is well known that, the distance up the hill and down the hill will be same.

Putting both the values equal, we get:

$xy=wz$

4 0

2 years ago

Which of the following pairs of functions are inverses of each other?

Serggg [28]

Answer:

<em>The answer is (B).</em>

Step-by-step explanation:

A). y = f(x) = 6(x - 2) + 3 ⇔ y = 6x - 12 + 3 ⇔ 6x = y + 9 ⇔ x = $\frac{y+9}{6}$

g(x) = $\frac{x+9}{6}$ is inverse function of f(x) and ≠ $\frac{x+2}{6}$ - 3

<em>B).</em> y = f(x) = $\frac{5x}{4}$ - 3 ⇔ 4y = 5x - 12 ⇔ x = $\frac{4y+12}{5}$

g(x) = $\frac{4(x + 3)}{5}$ is inverse of f(x)

6 0

3 years ago

Graph the line with slope -2/3 passing through the point (2,1)

nalin [4]

Find the y-intercept then graph it.
which is :-
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4 0

3 years ago