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3 years ago

Which choices are equivalent to the expression below? check all that apply

Mathematics

2 answers:

svet-max [94.6K]3 years ago

8 0

Answer: i square root 9 & 3i

Step-by-step explanation:

o-na [289]3 years ago

7 0

Answer:

The answer is B and D.

Step-by-step explanation:

I got it wrong and these we’re correct.

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A sprinter runs 400 meters in 54 seconds. What is the runner’s average running rate in meters per second? Round to the nearest t

Lyrx [107]

Answer:

Just divide

400/54=7.40

7.4 meters per second

hope this helps

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Solve this 2 step equation<br> d/12 - 6 < 1

nadezda [96]

Answer:

d<84

Step-by-step explanation:

Let's solve your inequality step-by-step.

−6<1

Step 1: Simplify both sides of the inequality.

d−6<1

Step 2: Add 6 to both sides.

d−6+6<1+6

d<7

Step 3: Multiply both sides by 12.

12*(

d)<(12)*(7)

=d/12-6<1

3 0

3 years ago

Jake has a piece of yarn that is four feet long. Blair has a piece of yarn that is four inches long. Who has the loner price and

RSB [31]

Jake has a longer yarn because feet are longer than inches

3 0

3 years ago

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Joseph built a model of a pyramid where the base of the pyramid is a square. If the base has an area of 49 cm2 (squared), what i

vagabundo [1.1K]

Answer:

7 cm

Step-by-step explanation:

We are told that the pyramid has a square base of an area of 49 cm².

Therefore, the side length of the base of the pyramid is still the same as the side length of a square having an area of 49 cm².

Area of a square = s², where s is the side length of the square.

The side length of the base can be gotten using the following equation,

$s^2 = 49$

Solve for s by looking for the share root of both sides.

$\sqrt{s^2} = \sqrt{49}$

$s = 7$

The side length of the base = 7 cm

8 0

3 years ago

Theo made a donation to a charity. His grandfather agreed to add$4.00 to Theo's donation amount and then donate half of the sum.

lisov135 [29]

Answer:

The needed equation is: $4.25 =( \frac{p+4}{2} )$

The amount of Theo's donation = $ (4.5)

Step-by-step explanation:

Let us assume the amount of Theo's donation = $ p

Now, his grandfather added $4 to the donation.

So, the New amount = Theo's amount + Grandfather's share

= $p + $ 4 = $ (4 +p)

Again, the half of the total amount = $(\frac{4 +p}{2})$

So, the amount donated to the charity = $(\frac{4 +p}{2})$

But according to the question, amount donated = $4.25

$\implies 4.25 =( \frac{p+4}{2} )\\\implies 4.25 \times 2 = p+ 4\\\implies p + 4 = 8.5\\\implies p = 8.5 - 4 = 4.5\\\implies p = 4.5$

Hence, the amount of Theo's donation = $ p = $ (4.5)

6 0

3 years ago