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AleksandrR [38]
3 years ago
7

What is the value of x in 2(5x) = 14?

Mathematics
2 answers:
Ray Of Light [21]3 years ago
6 0

Answer:

x= 7/5

Step-by-step explanation:

wlad13 [49]3 years ago
6 0

Answer: 1.4 or 7/5

Step-by-step explanation: 2×5x/2=14/2 then simplify: 5x=7 divide both sides by 5 5x/5= 7/5 which means x= 7/5 or as a decimal it equals 1.4 also go to symbolab it is great for math problems like this

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Use the algebra tiles to model x – 3. Then complete the statements. The variable is represented by Subtracting three is represen
Arte-miy333 [17]

The complete statements are as follows;

The variable is represented by<u> one </u><u>orange </u><u>x </u><u>tiles</u><u>.</u>

Subtract three is represented by <u>three</u><u> </u><u>blue</u><u> - tiles</u>.

The tiles represent <u>subtraction</u> <u>3</u> from an unknown number.

<h3>What are algerbra tiles?</h3>

Algebra tiles are square and rectangle shaped tiles or tiles that represent numbers and variables.

Given

Use the algebra tiles to model x -3.

The complete statements are as follows;

The variable is represented by<u> one </u><u>orange </u><u>x </u><u>tiles</u><u>.</u>

Subtract three is represented by <u>three</u><u> </u><u>blue</u><u> - tiles</u>.

The tiles represent <u>subtraction</u> <u>3</u> from an unknown number.

To know more about algerbra tiles click the link given below.

brainly.com/question/81876

6 0
2 years ago
In ΔBCD, the measure of ∠D=90°, the measure of ∠C=77°, and CD = 41 feet. Find the length of BC to the nearest foot.
OLga [1]

Answer:

182 ft

Step-by-step explanation:

When you are not given a diagram, always draw one for yourself (see diagram).

When you have a right triangle (triangle with 90° angle), you can use the trigonometry ratios, You can remember them using SohCahToa. It is read like this:

<u>s</u>inθ = <u>o</u>pposite/<u>h</u>ypotenuse           Soh

<u>c</u>osθ = <u>a</u>djacent/<u>h</u>ypotenuse          Cah

<u>t</u>anθ = <u>o</u>pposite/<u>a</u>djacent                Toa

"θ" means the angle of reference (the angle you are talking about).

We are looking for the length of BC, which is the <u>hypotenuse</u>. I labelled it "d" (lowercase D) because it is opposite to ∠D.

We know ∠C = 77°. This will be our angle of reference (replace θ).

The side we know is DC, also known as "b" (lowercase B) because it's opposite to ∠B. "b" is the <u>adjacent</u> side when θ = C because "b" is touching ∠C.

Take the general trig. formula that has <u>hypotenuse</u> and <u>adjacent</u>: (cosine ratio)

cosθ = adjacent/hypotenuse

Substitute the variables specific for this problem.

cosC = b/d

Substitute the values you know.

cos77° = (41 ft) / d

Isolate "d" to the left side

dcos77° = d*\frac{41ft}{d}     Multiply both sides by "d"

dcos77° = 41 ft                          

dcos77° / cos77° = 41 ft / cos77°        Divide both sides by cos77°

d = 41 ft / cos77°                      Input into calculator

d = 182.261874....... ft           Unrounded answer

d ≈ 182 ft                       Rounded to nearest foot (whole number)

Remember d = BC. It's often easier to use one letter for calculations.

Therefore the length of BC is about 182 feet.

8 0
3 years ago
The revenue for a business, as a function of units produced, x, is shown below by R(x). C(x) represents the cost of producing x
zavuch27 [327]

Answer:

huh....

Step-by-step explanation:

5 0
3 years ago
The universal set in this diagram is the set of integers from 1 to 15. place the integers in the correct place in the venn diagr
neonofarm [45]

Answer:


Step-by-step explanation:

Given :  universal set in this diagram is the set of integers from 1 to 15.

Solution :

The intersection of odd integer,multiples of 3 and Factors of 15 are 3,15

The intersection of odd integer and Factors of 15 are 1,5

The intersection of odd integer,multiples of 3 is 9

The remaining multiples of 3 are 6,12

The remaining odd integers are 7,11,13

Now the remaining integers are 2,4,8,10,14 and these integers must be placed in the boxes outside the circles Since they does not belong any intersection or odd integer or factor of 15 .

Refer the attached figure for the answer.

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3 years ago
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Can you please help me<br> sorry this is hard for me but i’ll give u brainliest and 70 points
devlian [24]

Answer:

-9 + 5 = -4

Step-by-step explanation:

I think that's what your asking.....

6 0
2 years ago
Read 2 more answers
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