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kodGreya [7K]
3 years ago
8

A bookcase has a mass of 20 kilograms. A book in the bookcase has a mass of 500 grams.

Mathematics
1 answer:
ExtremeBDS [4]3 years ago
3 0
Are u. nvmsupwrcslfragalistic day
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Mary spends 1/6 hour to make a friendship bracelets she spends 3 hours before lunch and 2 hours after lunch making the. Bracelet
lianna [129]

Answer:

30 bracelets

Step-by-step explanation:

she could make 6 in 1 hour so 18 bracelets in 3 hours plus 12 bracelets in 2 hours which equals 30 bracelets.

6(3+2)=x

x=30

8 0
3 years ago
Xin leans a 26-foot ladder against a wall so that it forms an angle of 78^{\circ} ∘ with the ground. What’s the horizontal dista
defon

The ladder and the wall it leans on are illustrations of right triangle

The horizontal distance from the base of the ladder is 5.41 feet

<h3>How to determine the horizontal distance?</h3>

The given parameters are:

Length (L) = 26 feet

Angle of elevation (θ) = 78 degrees

The horizontal distance (D) is calculated using the following cosine ratio

cos(θ) = D/L

Substitute known values

cos(78) = D/26

Make D the subject

D = 26 * cos(78)

Multiply

D = 5.41

Hence, the horizontal distance from the base of the ladder is 5.41 feet

Read more about right triangles at:

brainly.com/question/2437195

5 0
2 years ago
Given f(x) =3x-7, find f(x+1)+f(1)
ELEN [110]

Answer:

3x - 8

Step-by-step explanation:

To find f(x + 1) substitute x = x + 1 into f(x)

f(x + 1) = 3(x + 1) - 7 = 3x + 3 - 7 = 3x - 4

Similarly

f(1) = 3(1) - 7 = 3 - 7 = - 4

Hence

f(x + 1) + f(1) = 3x - 4 - 4 = 3x - 8

3 0
3 years ago
PLS HELP TIMED HW WILL GIVE BRAINLEIST
pochemuha

Answer:

4.8

Step-by-step explanation:

V_{sphere} = \frac{4}{3} \pi r^3

144\pi= \frac{4}{3} \pi r^3

r^3 = \frac {3 \times 144\pi}{4\pi}

r^3 = 3 \times 36

r^3 = 108

r =  \sqrt[3]{108}  \\  \\ r = 4.7622031559 \\  \\ r \approx \: 4.8 \:

4 0
2 years ago
Summarize the rules for multiplying powers with the same base dividing powers with the same base raising a product to a power an
Mashcka [7]
The rules for multiplying powers with the same base is you are basically doing the pemdas method Please Excuse My Dear Aunt Sally pemdas
3 0
3 years ago
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