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Gala2k [10]
3 years ago
10

Alex scored 70% in a spelling test with 20 quetions

Mathematics
2 answers:
IRISSAK [1]3 years ago
7 0

Answer:

14 right answers and 6 wrong answers

Step-by-step explanation:

To get a 70% you have to get 14 questions right and 6 wrong

amm18123 years ago
5 0

Answer:

This means that Alex answered 14 questions correctly

Step-by-step explanation:

<u>Step 1:  Find an equation</u>

20 * 0.7 = x

<u>Step 2:  Multiply</u>

20 * 0.7 = x

14 = x

Answer:  This means that Alex answered 14 questions correctly

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Let a = 24, b = 12, and c = 4. Evaluate ac+bc .
seropon [69]

Answer:

144

Step-by-step explanation:

If u multiply 24 x4 it is 96 and when I multiply 12x4 is 48 and u add 96 plus 48 u get 144.

6 0
3 years ago
Read 2 more answers
In each problem, angle C is a right angle. Solve each triangle rounding answers to the nearest
ryzh [129]

Answer:

B = 61°

A = 29°

a = 10

Step-by-step explanation:

We are given;

c = 16, b = 14​

Since we are told that C is a right angle, it means that C = 90°

Thus using sine rule, we have;

c/sin C = b/sin B

16/sin 90 = 14/sin B

16/1 = 14/sin B

sin B = 14/16

sin B = 0.875

B = sin^(-1) 0.875

B ≈ 61°

Now, since C is a right angle, it means that c will be the hypotenuse of the triangle.

Thus, from pythagoras theorem, If the other side of the triangle is a, then;

a² + b² = c²

a² + 14² = 16²

a² = 16² - 14²

a² = 256 - 156

a² = 100

a = √100

a = 10

Since we know B and C, we can find A because sum of angles in a triangle is 180°.

Thus;

A = 180 - (B + C)

A = 180 - (61 + 90)

A = 29°

4 0
3 years ago
Hey can you please help me posted picture of question:)
polet [3.4K]
The given trinomial can be factored using the factorization method.
x² - 2x - 24
The middle term should be written is such a way that the sum of two terms is equal to the middle one and their product should be equal to the product of first and third term. So the above expression can be written as
= x² -6x + 4x - 24
= x(x-6) + 4(x-6)
= (x-6)(x+4)
Thus, (x-6)(x+4) is the factored form of the polynomial.
So the correct answer is option B
4 0
3 years ago
Read 2 more answers
−5/8+3/4 equals what, In fraction form.
kipiarov [429]

How to get answer by Mimiwhatsup (In Decimal Form):

-5/8+3/4\\\mathrm{Divide\:the\:numbers:}\:5\div \:8=0.625\\=-0.625+3\div \:4\\\mathrm{Divide\:the\:numbers:}\:3\div \:4=0.75\\=-0.625+0.75\\\mathrm{Add/Subtract\:the\:numbers:}\:-0.625+0.75=0.125\\=0.125

Answer in Fraction Form: \frac{1}{8}

7 0
3 years ago
Find the distance between the two points. Round to the nearest tenth, if necessary. (Point 1 is at (-5,2) and point 2 is at (3,-
aivan3 [116]

Answer:

d = 9.4

Step-by-step explanation:

d=\sqrt{(3-(-5))^2 +(-3-2)^2\\

d=\sqrt{(8)^2+(-5)^2}

d=\sqrt{64+25}

d=\sqrt{89

d=9.4

3 0
3 years ago
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