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4 years ago

What is 789×243+568?? 10 points!! I can't use a calculator!!! :( help plz

Mathematics

2 answers:

Arada [10]4 years ago

6 0

The answer is 192,295

lesantik [10]4 years ago

5 0

The answer is 192,295 multiply first the take the answer u got and add that to 568

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A square piece of cheese covers 10 square inches of a plate. What is the approximate length of one side of the piece of cheese?

Lelu [443]

Answer:

Step-by-step explanation:

If its a square all the sides are equal so therefor if it took up ten inches of the plate the length is 10 by 10 so 100 because the equation for length is base times height.

8 0

3 years ago

A man 2 m high observes the angle of elevation to the top of a building to be 71° and the angle of depression to the bottom of t

Yuki888 [10]

Answer:

The building is 13.91 m tall

Step-by-step explanation:

The parameters given are;

Angle of elevation to the top of the building = 71°

Angle of depression to the bottom of the building = 26°

Height of the man = 2 m

Therefore, the sight of the man, the man's height, and the distance of the man from the building forms a triangle where:

The hypotenuse side = The sight of the man to the bottom of the building

Hence;

In ΔABC, A being at the eye level or head level of the man, B at the foot and C at the bottom of the building

∴ ∠A + Angle of depression to the bottom of the building = 90°

∠A = 90° - 26° = 64°

∠B = 90° and ∠C = 26° (Sum of angles in a triangle)

$Tan(C) = \frac{AB}{BC}$

Distance of the man from the building = BC

$Tan(26) = \frac{2}{BC}$

$BC= \frac{2}{ Tan(26) } = 4.1 \, m$

Given that the angle of elevation to the top of the building = 71°, we have;

ΔAET

Where:

A is at the head level of the man,

E is the point on the building directing facing the man and

T is the top of the building

Hence AE = BC and ∡TAE = 71°

TE + AB= The height of the building

$Tan(TAE) = \dfrac{TE}{AE}\\\\Tan(71) = \dfrac{TE}{4.1}$

∴ TE = tan(71°) × 4.1 = 11.91 m

Hence the height of the building = 11.91 + 2 = 13.91 m.

4 0

3 years ago

A line plot could be used as a data display for the distribution of test scores in math class. true or false

Andreas93 [3]

A line plot can be used as a data display for the distribution of test scores in math class. Thus, the option to choose is TRUE.

A line plot is a graph that shows data as checkmarks or dots across a number line, indicating the frequency of each value.

The test score in the math test will be discrete data with repeating frequencies. The score of every individual will moreover be a whole number.

The line plot, as we know, marks the dots across the number line, indicating frequency.

Thus, the scores in the math test can be displayed using a line plot, by indicating each type of mark on the line, and dots above those marks for the number of times the same marks occur.

Thus, the option to choose is true.

Learn more about line plots at

brainly.com/question/8989301

#SPJ4

8 0

2 years ago

What is the value of -26x - y) when x=-3 and y = 4? a.) -44 b.) -28 c.) 28 d.) 44

kondor19780726 [428]

Answer:

Value of equation = 74

Step-by-step explanation:

Given:

-26x - y

And

x = -3

y = 4

Find:

Value of equation

Computation:

-26x - y

By putting value

-26(-3) - 4

78 - 4

Value of equation = 74

3 0

3 years ago

Jeri is a hairdresser. The table below shows the relationship between the number of clients she has per month, x, and her monthl

LenaWriter [7]

The given data is

x f(x)
---- --------
12 0
20 800
30 1800

where
x = number of clients per month
f(x) = monthly revenue

A graph of the data is shown below.
Let the equation of the line be
y = mx + c

The x-intercept is 12, therefore
12m + c = 0 (1)

The line passes through (30, 1800) and (12,0). Therefore the slope is
m = 1800/(30-12) = 100 (2)

From (1), obtain
c = -12m = -12*100 = -1200

Therefore
y = 100x - 1200

Answer: D. f(x) = 100x - 1200

3 0

3 years ago