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3 years ago

I need help with geometry

Mathematics

1 answer:

weqwewe [10]3 years ago

4 0

Answer:

the answer will be A

Step-by-step explanation:

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Tasha plants to tile the floor in her room with square tiles that are 1/4 foot long. will she use more or fewer tiles if she onl

WITCHER [35]

1/4 foot = 3 inches.
The area of a 1/4-ft square is (3" x 3") = 9 square inches.

1/3 foot = 4 inches.
The area of a 1/3-ft square is (4" x 4") = 16 square inches.

The 1/3-ft square tile covers more area than a 1/4-ft square tile
covers. So she won't need as many 1/3-ft tiles to cover the floor
in her room. She will use fewer of those.

6 0

3 years ago

Help me, I need to answer a question: 50% of 15

harkovskaia [24]

50% is exactly half, so to find half of something you just divide it by 2= 7.5

Or you could multiply it

15 x 0.50=7.5

4 0

3 years ago

Read 2 more answers

What is the area of the figure?

masya89 [10]

Step-by-step explanation:

∆=3*6=18

[]=5*15=75

75+18=93 in squared

3 0

3 years ago

Carlo used this number line to find the product of 2 and −3. A number line going from negative 7 to positive 3. An arrow goes fr

Vesnalui [34]

Answer:

The errors are;

a. negative 4 to negative 6

b. negative 2 to negative 4

Step-by-step explanation:

The number line is the mathematical representation of numbers in the horizontal line or the x-axis.

The result of the multiplication of a positive 2 and a negative 3 is;

2 x -3 = -6 , gives a negative 6.

So the number line should scale to accommodate the operands and the result, which is from negative 7 to positive 3, in the option given.

8 0

4 years ago

The fraction of defective integrated circuits produced in a photolithography process is being studied. A random sample of 300 ci

Dmitry [639]

Answer:

The test statistic

Z = 1.149

Since the calculated value of Z = 1.149 is less than 1.96 at 5% (0.05) level of significance.

The null hypothesis is accepted

Hence the proportion is not equal 0.04

<u>Step-by-step explanation:</u>

Given data a random sample of 300 circuits is tested, revealing 16 defectives.

The proportion of success

$p = \frac{16}{300} =0.053$

Null hypothesis:- H₀ = P ≠0.04

Alternative hypothesis:- H₁ = P =0.04

Q = 1-P = 1-0.04=0.96

Level of significance ∝ =0.05

The test statistic

$Z= \frac{p-P}{\sqrt{\frac{PQ}{n} } }$

now substitute all values, we get

$Z= \frac{0.053-0.04}{\sqrt{\frac{0.0384}{300} } }$

on calculation, Z = 1.149

Since the calculated value of Z = 1.149 is less than 1.96 at 5% (0.05) level of significance.

The null hypothesis is accepted .

Hence the proportion is not equal 0.04

3 0

4 years ago