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3 years ago

1.what is the value of x? ( 1st pic)

Mathematics

1 answer:

balandron [24]3 years ago

5 0

For the first picture using Pythagorean Theorem, we know that a^2 + b ^2 = c^2 but since we only know c ( 99.2) and b ( 62 ) we need to use the theorem to find a the equation we use for that is :
A = square root of ( c^2 - B^2 )
A = 77.44

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To the nearest tenth, what is the value of x? A. 3.5 B. 4.8 C. 5.9 D. 7.3 E. 9.8

NeX [460]

Answer:

D, I think, pls don't report if im wrong

Step-by-step explanation:

7 0

3 years ago

Use the order of operations to simplify the expression: 23 + 5 × 10 ÷ 2 – 33 + (11 – 8)

Ludmilka [50]

Here you must do mult. and div. BEFORE add'n. and subtr'n.

23 + 5 × 10 ÷ 2 – 33 + (11 – 8)
Mult 5*10, and then div. the result by 2. Then you will have

23 + 25 - 33 + 3
This simplifies to: 51-33 = 18

5 0

3 years ago

Read 2 more answers

Jonah collects rainwater in a large barrel that weighs 30 pounds. When there are 10 gallons of water in the barrel, the total we

Serjik [45]

The first thing we are going to do for this case is define variables.
We have then:
x: number of gallons of water
y: total weight
We then have an equation of the form:
$y-yo = m (x - xo)
$
Where,
$m = (y2 - y1) / (x2 - x1)
$
Substituting values:
$m = (196.8 - 113.4) / (20 - 10)

m = 8.34$
We choose an ordered pair:
$(xo, yo) = (10, 113.4)
$
Substituting values:
$y-113.4 = 8.34 (x - 10)
$
Rewriting:
$y = 8.34x - 83.4 + 113.4

y = 8.34x + 30$
Answer:
y = 8.34x + 30

8 0

3 years ago

Find the slope for (2, 150) and (4,130)

iris [78.8K]

Answer:

-10

Step-by-step explanation:

A slope's equation for 2 points on a coordinate plane is y² - y^1 ÷ x² - x^1

Note that the exponents aren't meaning powered, but just as a marking.

x1 is 2, x2 is 4, y1 is 150, y2 is 130

130-150 / 4-2 = -20/2, so -10

4 0

3 years ago

Find EF and FD.

vichka [17]

9514 1404 393

Answer:

EF = 13.1

FD = 35.3

Step-by-step explanation:

The distance between two points on a number line is the positive difference between their coordinates.

EF = F - E = 19 -5.9

EF = 13.1

FD = F - D = 19 -(-16.3) = 19 +16.3

FD = 35.3

6 0

3 years ago