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3 years ago

Solve for e. Give an exact answer. 0.75(8+e)=2-1.25e

Mathematics

2 answers:

ANEK [815]3 years ago

4 0

Then I got 2e=-4
e=-2

-Dominant- [34]3 years ago

4 0

Answer:

e = -2

Step-by-step explanation:

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A test has 40 questions. Denise finished 2\5 of the questions in the first 10 minutes and 1\2 of the total questions in the next

leonid [27]

Answer:

28 questions answered.

Step-by-step explanation:

40(2/5) is 16 questions.

40-16 is 24 questions left.

24(.5) is 12 questions.

16+12 gets you 28 questions.

8 0

2 years ago

What is the length of leg s of the triangle below?

Phoenix [80]

Answer:

option A

Step-by-step explanation:

take 45 degree as reference angle

using sin rule

sin 45 = opposite / hypotenuse

$\frac{1}{\sqrt{2} }$ = s/ $8\sqrt{2}$

$\frac{1}{\sqrt{2} } *8\sqrt{2}$ = s

root 2 and root 2 gets cancel

8 = s

8 0

2 years ago

-x + 5y = 13<br>x - y = 15

aivan3 [116]

Answer:

x-y-15=15-15

x-y-15=0

hope this helps :)

3 0

3 years ago

Read 2 more answers

A fruit bowl is shaped like half of a sphere. The radius of the bowl is 15cm. what is the volume of the bowl

Naya [18.7K]

Answer: 7065 cm

Step-by-step explanation:

Find the volume as the bowl was a whole sphere and then divide the volume found by two, to get the volume of half the sphere.

(4/3) * π*(r^3) ≈ 14130 cm

14130/2 ≈ 7065 cm

This is an approximated result using π = 3.14

3 0

3 years ago

Someone help me please

Gemiola [76]

Answer:

$x=2\sqrt{6}$

Step-by-step explanation:

Use the Pythagorean theorem:

$a^2+b^2=c^2$

a and b are the legs and c is the hypotenuse. Insert the values:

$\sqrt{10}^2+\sqrt{14}^2=x^2$

Simplify exponents using the rule $\sqrt{x}^2=x$ :

$10+14=x^2$

Simplify addition:

$24=x^2\\x^2=24$

Find the square root:

$\sqrt{x^2}=\sqrt{24}\\ x=\sqrt{24}$

Simplify in radical form: Find a common factor of 24 that is a perfect square:

$\sqrt{24}=\sqrt{4*6}$

Separate:

$\sqrt{4}*\sqrt{6}$

Simplify:

$2*\sqrt{6}\\x=2\sqrt{6}$

Finito.

3 0

3 years ago

Read 2 more answers